./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.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 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:38:24,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:38:24,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:38:24,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:38:24,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:38:24,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:38:24,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:38:24,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:38:24,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:38:24,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:38:24,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:38:24,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:38:24,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:38:24,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:38:24,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:38:24,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:38:24,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:38:24,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:38:24,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:38:24,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:38:24,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:38:24,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:38:24,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:38:24,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:38:24,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:38:24,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:38:24,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:38:24,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:38:24,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:38:24,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:38:24,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:38:24,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:38:24,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:38:24,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:38:24,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:38:24,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:38:24,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:38:24,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:38:24,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:38:24,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:38:24,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:38:24,574 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:38:24,587 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:38:24,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:38:24,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:38:24,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:38:24,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:38:24,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:38:24,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:38:24,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:38:24,590 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:38:24,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:38:24,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:38:24,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:38:24,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:38:24,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:38:24,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:38:24,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:38:24,591 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:38:24,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:38:24,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:38:24,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:38:24,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:38:24,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:38:24,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:38:24,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:38:24,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:38:24,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:38:24,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:38:24,594 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:38:24,594 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:38:24,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:38:24,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:38:24,594 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d [2021-12-14 17:38:24,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:38:24,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:38:24,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:38:24,775 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:38:24,775 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:38:24,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2021-12-14 17:38:24,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcbc2595e/5799ba96792d4a3d92dc85e94c6aa503/FLAG0fe3d52db [2021-12-14 17:38:25,477 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:38:25,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2021-12-14 17:38:25,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcbc2595e/5799ba96792d4a3d92dc85e94c6aa503/FLAG0fe3d52db [2021-12-14 17:38:25,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcbc2595e/5799ba96792d4a3d92dc85e94c6aa503 [2021-12-14 17:38:25,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:38:25,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:38:25,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:38:25,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:38:25,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:38:25,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:38:25" (1/1) ... [2021-12-14 17:38:25,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd49d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:25, skipping insertion in model container [2021-12-14 17:38:25,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:38:25" (1/1) ... [2021-12-14 17:38:25,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:38:25,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:38:27,802 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2021-12-14 17:38:27,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:38:27,920 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:38:28,387 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2021-12-14 17:38:28,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:38:28,509 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:38:28,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:28 WrapperNode [2021-12-14 17:38:28,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:38:28,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:38:28,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:38:28,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:38:28,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:28" (1/1) ... [2021-12-14 17:38:28,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:28" (1/1) ... [2021-12-14 17:38:28,890 INFO L137 Inliner]: procedures = 356, calls = 3806, calls flagged for inlining = 167, calls inlined = 133, statements flattened = 7285 [2021-12-14 17:38:28,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:38:28,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:38:28,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:38:28,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:38:28,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:28" (1/1) ... [2021-12-14 17:38:28,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:28" (1/1) ... [2021-12-14 17:38:28,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:28" (1/1) ... [2021-12-14 17:38:28,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:28" (1/1) ... [2021-12-14 17:38:29,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:28" (1/1) ... [2021-12-14 17:38:29,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:28" (1/1) ... [2021-12-14 17:38:29,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:28" (1/1) ... [2021-12-14 17:38:29,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:38:29,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:38:29,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:38:29,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:38:29,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:28" (1/1) ... [2021-12-14 17:38:29,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:38:29,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:38:29,215 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 17:38:29,230 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 17:38:29,252 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2021-12-14 17:38:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2021-12-14 17:38:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-12-14 17:38:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-12-14 17:38:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-14 17:38:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:38:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:38:29,253 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2021-12-14 17:38:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2021-12-14 17:38:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 17:38:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 17:38:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 17:38:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 17:38:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-14 17:38:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-14 17:38:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure set_signals [2021-12-14 17:38:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure set_signals [2021-12-14 17:38:29,254 INFO L130 BoogieDeclarations]: Found specification of procedure irq_test [2021-12-14 17:38:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_test [2021-12-14 17:38:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_dma_bufs [2021-12-14 17:38:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_dma_bufs [2021-12-14 17:38:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2021-12-14 17:38:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2021-12-14 17:38:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:38:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:38:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure flush_chars [2021-12-14 17:38:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_chars [2021-12-14 17:38:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-12-14 17:38:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-12-14 17:38:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:38:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:38:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:38:29,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:38:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure tx_stop [2021-12-14 17:38:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_stop [2021-12-14 17:38:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure sca_init [2021-12-14 17:38:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure sca_init [2021-12-14 17:38:29,258 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-14 17:38:29,258 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-14 17:38:29,258 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 17:38:29,258 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 17:38:29,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:38:29,258 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:38:29,258 INFO L130 BoogieDeclarations]: Found specification of procedure chars_in_buffer [2021-12-14 17:38:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure chars_in_buffer [2021-12-14 17:38:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 17:38:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 17:38:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-14 17:38:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-14 17:38:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure change_params [2021-12-14 17:38:29,259 INFO L138 BoogieDeclarations]: Found implementation of procedure change_params [2021-12-14 17:38:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-12-14 17:38:29,260 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-12-14 17:38:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-14 17:38:29,260 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-14 17:38:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2021-12-14 17:38:29,260 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2021-12-14 17:38:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:38:29,261 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:38:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure set_break [2021-12-14 17:38:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure set_break [2021-12-14 17:38:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure tx_start [2021-12-14 17:38:29,262 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_start [2021-12-14 17:38:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:38:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-14 17:38:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2021-12-14 17:38:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2021-12-14 17:38:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_frame_bufs [2021-12-14 17:38:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_frame_bufs [2021-12-14 17:38:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure rx_free_frame_buffers [2021-12-14 17:38:29,263 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_free_frame_buffers [2021-12-14 17:38:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:38:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure wait_until_sent [2021-12-14 17:38:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_until_sent [2021-12-14 17:38:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-14 17:38:29,264 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-14 17:38:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:38:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:38:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure synclinkmp_cleanup [2021-12-14 17:38:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure synclinkmp_cleanup [2021-12-14 17:38:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-14 17:38:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-14 17:38:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:38:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2021-12-14 17:38:29,265 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2021-12-14 17:38:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-14 17:38:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-14 17:38:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:38:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure set_rate [2021-12-14 17:38:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rate [2021-12-14 17:38:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-14 17:38:29,266 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-14 17:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2021-12-14 17:38:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2021-12-14 17:38:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-14 17:38:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-14 17:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 17:38:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 17:38:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2021-12-14 17:38:29,268 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2021-12-14 17:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-14 17:38:29,269 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-14 17:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-12-14 17:38:29,269 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-12-14 17:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 17:38:29,269 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 17:38:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure rx_stop [2021-12-14 17:38:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_stop [2021-12-14 17:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_test [2021-12-14 17:38:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_test [2021-12-14 17:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-14 17:38:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-14 17:38:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2021-12-14 17:38:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2021-12-14 17:38:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:38:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-14 17:38:29,271 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-14 17:38:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 17:38:29,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 17:38:29,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:38:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-14 17:38:29,274 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-14 17:38:29,274 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2021-12-14 17:38:29,274 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2021-12-14 17:38:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure release_resources [2021-12-14 17:38:29,275 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resources [2021-12-14 17:38:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:38:29,275 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-14 17:38:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-14 17:38:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 17:38:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 17:38:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-14 17:38:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-14 17:38:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure tx_set_idle [2021-12-14 17:38:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_set_idle [2021-12-14 17:38:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure set_termios [2021-12-14 17:38:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure set_termios [2021-12-14 17:38:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:38:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:38:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure write_room [2021-12-14 17:38:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure write_room [2021-12-14 17:38:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure enable_loopback [2021-12-14 17:38:29,280 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_loopback [2021-12-14 17:38:29,280 INFO L130 BoogieDeclarations]: Found specification of procedure install [2021-12-14 17:38:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure install [2021-12-14 17:38:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2021-12-14 17:38:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2021-12-14 17:38:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 17:38:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 17:38:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure throttle [2021-12-14 17:38:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure throttle [2021-12-14 17:38:29,281 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-14 17:38:29,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-14 17:38:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:38:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:38:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load_fifo [2021-12-14 17:38:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load_fifo [2021-12-14 17:38:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-14 17:38:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-14 17:38:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:38:29,282 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-14 17:38:29,282 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-14 17:38:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load_dma_buffer [2021-12-14 17:38:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load_dma_buffer [2021-12-14 17:38:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure program_hw [2021-12-14 17:38:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure program_hw [2021-12-14 17:38:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2021-12-14 17:38:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2021-12-14 17:38:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:38:29,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:38:29,283 INFO L130 BoogieDeclarations]: Found specification of procedure reset_port [2021-12-14 17:38:29,284 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_port [2021-12-14 17:38:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:38:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-14 17:38:29,284 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-14 17:38:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:38:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-12-14 17:38:29,284 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-12-14 17:38:29,284 INFO L130 BoogieDeclarations]: Found specification of procedure register_test [2021-12-14 17:38:29,284 INFO L138 BoogieDeclarations]: Found implementation of procedure register_test [2021-12-14 17:38:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2021-12-14 17:38:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2021-12-14 17:38:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:38:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure hangup [2021-12-14 17:38:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure hangup [2021-12-14 17:38:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 17:38:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure get_icount [2021-12-14 17:38:29,285 INFO L138 BoogieDeclarations]: Found implementation of procedure get_icount [2021-12-14 17:38:29,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ops_disconnect_1 [2021-12-14 17:38:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ops_disconnect_1 [2021-12-14 17:38:29,286 INFO L130 BoogieDeclarations]: Found specification of procedure write_control_reg [2021-12-14 17:38:29,286 INFO L138 BoogieDeclarations]: Found implementation of procedure write_control_reg [2021-12-14 17:38:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure put_char [2021-12-14 17:38:29,287 INFO L138 BoogieDeclarations]: Found implementation of procedure put_char [2021-12-14 17:38:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure unthrottle [2021-12-14 17:38:29,287 INFO L138 BoogieDeclarations]: Found implementation of procedure unthrottle [2021-12-14 17:38:29,287 INFO L130 BoogieDeclarations]: Found specification of procedure tx_release [2021-12-14 17:38:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_release [2021-12-14 17:38:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 17:38:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 17:38:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-14 17:38:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-14 17:38:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_mode [2021-12-14 17:38:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_mode [2021-12-14 17:38:29,288 INFO L130 BoogieDeclarations]: Found specification of procedure rx_get_frame [2021-12-14 17:38:29,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_get_frame [2021-12-14 17:38:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2021-12-14 17:38:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2021-12-14 17:38:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-14 17:38:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-14 17:38:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure send_xchar [2021-12-14 17:38:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure send_xchar [2021-12-14 17:38:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-14 17:38:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-14 17:38:29,289 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2021-12-14 17:38:29,289 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2021-12-14 17:38:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2021-12-14 17:38:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2021-12-14 17:38:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg16 [2021-12-14 17:38:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg16 [2021-12-14 17:38:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-14 17:38:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-14 17:38:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure get_signals [2021-12-14 17:38:29,290 INFO L138 BoogieDeclarations]: Found implementation of procedure get_signals [2021-12-14 17:38:29,290 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 17:38:29,291 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 17:38:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:38:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-14 17:38:29,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-14 17:38:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure rx_start [2021-12-14 17:38:29,291 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_start [2021-12-14 17:38:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block [2021-12-14 17:38:29,291 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block [2021-12-14 17:38:29,291 INFO L130 BoogieDeclarations]: Found specification of procedure sanity_check [2021-12-14 17:38:29,292 INFO L138 BoogieDeclarations]: Found implementation of procedure sanity_check [2021-12-14 17:38:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:38:29,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:38:29,292 INFO L130 BoogieDeclarations]: Found specification of procedure read_status_reg [2021-12-14 17:38:29,292 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status_reg [2021-12-14 17:38:30,027 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:38:30,030 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:38:57,705 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:38:57,756 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:38:57,756 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:38:57,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:38:57 BoogieIcfgContainer [2021-12-14 17:38:57,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:38:57,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:38:57,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:38:57,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:38:57,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:38:25" (1/3) ... [2021-12-14 17:38:57,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bbd090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:38:57, skipping insertion in model container [2021-12-14 17:38:57,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:38:28" (2/3) ... [2021-12-14 17:38:57,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bbd090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:38:57, skipping insertion in model container [2021-12-14 17:38:57,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:38:57" (3/3) ... [2021-12-14 17:38:57,775 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2021-12-14 17:38:57,779 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:38:57,779 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:38:57,825 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:38:57,838 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 17:38:57,838 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:38:57,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 2807 states, 1985 states have (on average 1.418639798488665) internal successors, (2816), 2042 states have internal predecessors, (2816), 710 states have call successors, (710), 110 states have call predecessors, (710), 110 states have return successors, (710), 704 states have call predecessors, (710), 710 states have call successors, (710) [2021-12-14 17:38:57,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-14 17:38:57,918 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:57,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:38:57,919 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:57,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:57,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1191751299, now seen corresponding path program 1 times [2021-12-14 17:38:57,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:57,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143862078] [2021-12-14 17:38:57,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:57,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:58,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:58,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:58,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143862078] [2021-12-14 17:38:58,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143862078] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:58,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:58,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:38:58,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387700322] [2021-12-14 17:38:58,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:58,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:38:58,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:58,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:38:58,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:58,402 INFO L87 Difference]: Start difference. First operand has 2807 states, 1985 states have (on average 1.418639798488665) internal successors, (2816), 2042 states have internal predecessors, (2816), 710 states have call successors, (710), 110 states have call predecessors, (710), 110 states have return successors, (710), 704 states have call predecessors, (710), 710 states have call successors, (710) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:38:58,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:38:58,722 INFO L93 Difference]: Finished difference Result 5608 states and 8514 transitions. [2021-12-14 17:38:58,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:38:58,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-14 17:38:58,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:38:58,755 INFO L225 Difference]: With dead ends: 5608 [2021-12-14 17:38:58,755 INFO L226 Difference]: Without dead ends: 2800 [2021-12-14 17:38:58,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:58,778 INFO L933 BasicCegarLoop]: 4224 mSDtfsCounter, 4207 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4207 SdHoareTripleChecker+Valid, 4224 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:38:58,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4207 Valid, 4224 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 17:38:58,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2021-12-14 17:38:58,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2800. [2021-12-14 17:38:58,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2800 states, 1981 states have (on average 1.4174659262998486) internal successors, (2808), 2035 states have internal predecessors, (2808), 709 states have call successors, (709), 110 states have call predecessors, (709), 109 states have return successors, (704), 698 states have call predecessors, (704), 704 states have call successors, (704) [2021-12-14 17:38:58,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2800 states to 2800 states and 4221 transitions. [2021-12-14 17:38:58,953 INFO L78 Accepts]: Start accepts. Automaton has 2800 states and 4221 transitions. Word has length 21 [2021-12-14 17:38:58,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:38:58,954 INFO L470 AbstractCegarLoop]: Abstraction has 2800 states and 4221 transitions. [2021-12-14 17:38:58,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:38:58,955 INFO L276 IsEmpty]: Start isEmpty. Operand 2800 states and 4221 transitions. [2021-12-14 17:38:58,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-14 17:38:58,961 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:58,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:38:58,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:38:58,961 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:58,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:58,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1711631940, now seen corresponding path program 1 times [2021-12-14 17:38:58,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:58,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597897546] [2021-12-14 17:38:58,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:58,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:59,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:59,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:59,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597897546] [2021-12-14 17:38:59,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597897546] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:59,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:59,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:38:59,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401786108] [2021-12-14 17:38:59,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:59,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:38:59,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:59,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:38:59,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:59,139 INFO L87 Difference]: Start difference. First operand 2800 states and 4221 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:38:59,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:38:59,338 INFO L93 Difference]: Finished difference Result 2802 states and 4222 transitions. [2021-12-14 17:38:59,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:38:59,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-14 17:38:59,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:38:59,355 INFO L225 Difference]: With dead ends: 2802 [2021-12-14 17:38:59,355 INFO L226 Difference]: Without dead ends: 2799 [2021-12-14 17:38:59,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:59,361 INFO L933 BasicCegarLoop]: 4218 mSDtfsCounter, 4200 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4200 SdHoareTripleChecker+Valid, 4218 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 17:38:59,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4200 Valid, 4218 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 17:38:59,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2021-12-14 17:38:59,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2799. [2021-12-14 17:38:59,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 1981 states have (on average 1.4169611307420495) internal successors, (2807), 2034 states have internal predecessors, (2807), 708 states have call successors, (708), 110 states have call predecessors, (708), 109 states have return successors, (704), 698 states have call predecessors, (704), 704 states have call successors, (704) [2021-12-14 17:38:59,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 4219 transitions. [2021-12-14 17:38:59,451 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 4219 transitions. Word has length 22 [2021-12-14 17:38:59,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:38:59,452 INFO L470 AbstractCegarLoop]: Abstraction has 2799 states and 4219 transitions. [2021-12-14 17:38:59,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:38:59,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 4219 transitions. [2021-12-14 17:38:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-14 17:38:59,454 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:59,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:38:59,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:38:59,454 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:59,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:59,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1522194266, now seen corresponding path program 1 times [2021-12-14 17:38:59,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:59,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163313171] [2021-12-14 17:38:59,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:59,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:59,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:59,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:59,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163313171] [2021-12-14 17:38:59,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163313171] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:59,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:59,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:38:59,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951304629] [2021-12-14 17:38:59,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:59,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:38:59,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:59,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:38:59,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:59,587 INFO L87 Difference]: Start difference. First operand 2799 states and 4219 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:38:59,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:38:59,690 INFO L93 Difference]: Finished difference Result 2801 states and 4220 transitions. [2021-12-14 17:38:59,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:38:59,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-14 17:38:59,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:38:59,704 INFO L225 Difference]: With dead ends: 2801 [2021-12-14 17:38:59,704 INFO L226 Difference]: Without dead ends: 2798 [2021-12-14 17:38:59,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:59,711 INFO L933 BasicCegarLoop]: 4216 mSDtfsCounter, 4197 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4197 SdHoareTripleChecker+Valid, 4216 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 17:38:59,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4197 Valid, 4216 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 17:38:59,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2021-12-14 17:38:59,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2021-12-14 17:38:59,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 1981 states have (on average 1.4164563351842503) internal successors, (2806), 2033 states have internal predecessors, (2806), 707 states have call successors, (707), 110 states have call predecessors, (707), 109 states have return successors, (704), 698 states have call predecessors, (704), 704 states have call successors, (704) [2021-12-14 17:38:59,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4217 transitions. [2021-12-14 17:38:59,838 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4217 transitions. Word has length 23 [2021-12-14 17:38:59,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:38:59,838 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 4217 transitions. [2021-12-14 17:38:59,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:38:59,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4217 transitions. [2021-12-14 17:38:59,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-14 17:38:59,841 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:38:59,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:38:59,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:38:59,842 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:38:59,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:38:59,842 INFO L85 PathProgramCache]: Analyzing trace with hash 55411199, now seen corresponding path program 1 times [2021-12-14 17:38:59,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:38:59,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596600577] [2021-12-14 17:38:59,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:38:59,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:38:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:38:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:38:59,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:38:59,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596600577] [2021-12-14 17:38:59,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596600577] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:38:59,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:38:59,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 17:38:59,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966744773] [2021-12-14 17:38:59,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:38:59,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 17:38:59,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:38:59,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 17:38:59,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:38:59,985 INFO L87 Difference]: Start difference. First operand 2798 states and 4217 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:39:00,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:39:00,128 INFO L93 Difference]: Finished difference Result 3310 states and 4949 transitions. [2021-12-14 17:39:00,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 17:39:00,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-14 17:39:00,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:39:00,150 INFO L225 Difference]: With dead ends: 3310 [2021-12-14 17:39:00,151 INFO L226 Difference]: Without dead ends: 3299 [2021-12-14 17:39:00,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 17:39:00,159 INFO L933 BasicCegarLoop]: 4392 mSDtfsCounter, 4101 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4101 SdHoareTripleChecker+Valid, 5210 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 17:39:00,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4101 Valid, 5210 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 17:39:00,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2021-12-14 17:39:00,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 3299. [2021-12-14 17:39:00,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3299 states, 2310 states have (on average 1.4086580086580087) internal successors, (3254), 2371 states have internal predecessors, (3254), 841 states have call successors, (841), 148 states have call predecessors, (841), 147 states have return successors, (840), 832 states have call predecessors, (840), 840 states have call successors, (840) [2021-12-14 17:39:00,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 4935 transitions. [2021-12-14 17:39:00,309 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 4935 transitions. Word has length 24 [2021-12-14 17:39:00,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:39:00,309 INFO L470 AbstractCegarLoop]: Abstraction has 3299 states and 4935 transitions. [2021-12-14 17:39:00,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 17:39:00,310 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4935 transitions. [2021-12-14 17:39:00,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-14 17:39:00,320 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:39:00,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:39:00,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 17:39:00,320 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:39:00,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:39:00,321 INFO L85 PathProgramCache]: Analyzing trace with hash 2055295418, now seen corresponding path program 1 times [2021-12-14 17:39:00,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:39:00,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463490429] [2021-12-14 17:39:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:39:00,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:39:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:00,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 17:39:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:00,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 17:39:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:00,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 17:39:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:00,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 17:39:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:00,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:39:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:00,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:39:00,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:39:00,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463490429] [2021-12-14 17:39:00,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463490429] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:39:00,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:39:00,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:39:00,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94767424] [2021-12-14 17:39:00,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:39:00,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:39:00,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:39:00,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:39:00,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:39:00,480 INFO L87 Difference]: Start difference. First operand 3299 states and 4935 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-14 17:39:02,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:03,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:08,159 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 17:39:10,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:39:10,449 INFO L93 Difference]: Finished difference Result 8135 states and 12118 transitions. [2021-12-14 17:39:10,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:39:10,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2021-12-14 17:39:10,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:39:10,471 INFO L225 Difference]: With dead ends: 8135 [2021-12-14 17:39:10,472 INFO L226 Difference]: Without dead ends: 4839 [2021-12-14 17:39:10,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:39:10,485 INFO L933 BasicCegarLoop]: 4457 mSDtfsCounter, 3878 mSDsluCounter, 3193 mSDsCounter, 0 mSdLazyCounter, 3161 mSolverCounterSat, 1769 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4412 SdHoareTripleChecker+Valid, 7650 SdHoareTripleChecker+Invalid, 4931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1769 IncrementalHoareTripleChecker+Valid, 3161 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-12-14 17:39:10,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4412 Valid, 7650 Invalid, 4931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1769 Valid, 3161 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2021-12-14 17:39:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4839 states. [2021-12-14 17:39:10,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4839 to 4832. [2021-12-14 17:39:10,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4832 states, 3397 states have (on average 1.3979982337356491) internal successors, (4749), 3480 states have internal predecessors, (4749), 1211 states have call successors, (1211), 224 states have call predecessors, (1211), 223 states have return successors, (1210), 1199 states have call predecessors, (1210), 1210 states have call successors, (1210) [2021-12-14 17:39:10,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 7170 transitions. [2021-12-14 17:39:10,640 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 7170 transitions. Word has length 64 [2021-12-14 17:39:10,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:39:10,641 INFO L470 AbstractCegarLoop]: Abstraction has 4832 states and 7170 transitions. [2021-12-14 17:39:10,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-14 17:39:10,641 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 7170 transitions. [2021-12-14 17:39:10,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-14 17:39:10,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:39:10,650 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:39:10,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 17:39:10,651 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:39:10,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:39:10,651 INFO L85 PathProgramCache]: Analyzing trace with hash 2068285400, now seen corresponding path program 1 times [2021-12-14 17:39:10,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:39:10,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824388859] [2021-12-14 17:39:10,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:39:10,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:39:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:10,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 17:39:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:10,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-14 17:39:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:10,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 17:39:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:10,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 17:39:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:10,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:39:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:10,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:39:10,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:39:10,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824388859] [2021-12-14 17:39:10,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824388859] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:39:10,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:39:10,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:39:10,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185628115] [2021-12-14 17:39:10,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:39:10,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:39:10,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:39:10,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:39:10,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:39:10,826 INFO L87 Difference]: Start difference. First operand 4832 states and 7170 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-14 17:39:12,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:39:14,910 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 17:39:20,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:39:20,032 INFO L93 Difference]: Finished difference Result 12517 states and 18605 transitions. [2021-12-14 17:39:20,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:39:20,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2021-12-14 17:39:20,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:39:20,076 INFO L225 Difference]: With dead ends: 12517 [2021-12-14 17:39:20,076 INFO L226 Difference]: Without dead ends: 7688 [2021-12-14 17:39:20,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:39:20,096 INFO L933 BasicCegarLoop]: 5476 mSDtfsCounter, 5093 mSDsluCounter, 3569 mSDsCounter, 0 mSdLazyCounter, 3511 mSolverCounterSat, 2438 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5666 SdHoareTripleChecker+Valid, 9045 SdHoareTripleChecker+Invalid, 5950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2438 IncrementalHoareTripleChecker+Valid, 3511 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-12-14 17:39:20,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5666 Valid, 9045 Invalid, 5950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2438 Valid, 3511 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2021-12-14 17:39:20,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2021-12-14 17:39:20,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 7671. [2021-12-14 17:39:20,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7671 states, 5408 states have (on average 1.3903476331360947) internal successors, (7519), 5546 states have internal predecessors, (7519), 1901 states have call successors, (1901), 362 states have call predecessors, (1901), 361 states have return successors, (1900), 1881 states have call predecessors, (1900), 1900 states have call successors, (1900) [2021-12-14 17:39:20,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7671 states to 7671 states and 11320 transitions. [2021-12-14 17:39:20,361 INFO L78 Accepts]: Start accepts. Automaton has 7671 states and 11320 transitions. Word has length 81 [2021-12-14 17:39:20,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:39:20,361 INFO L470 AbstractCegarLoop]: Abstraction has 7671 states and 11320 transitions. [2021-12-14 17:39:20,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-14 17:39:20,362 INFO L276 IsEmpty]: Start isEmpty. Operand 7671 states and 11320 transitions. [2021-12-14 17:39:20,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-14 17:39:20,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:39:20,370 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:39:20,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 17:39:20,370 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:39:20,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:39:20,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1834541467, now seen corresponding path program 1 times [2021-12-14 17:39:20,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:39:20,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760784301] [2021-12-14 17:39:20,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:39:20,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:39:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:20,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:39:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:20,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:39:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:20,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:39:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:20,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 17:39:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:20,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:39:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:20,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-14 17:39:20,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:39:20,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760784301] [2021-12-14 17:39:20,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760784301] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:39:20,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:39:20,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:39:20,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115327377] [2021-12-14 17:39:20,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:39:20,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:39:20,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:39:20,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:39:20,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:39:20,514 INFO L87 Difference]: Start difference. First operand 7671 states and 11320 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-14 17:39:23,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:39:23,020 INFO L93 Difference]: Finished difference Result 15281 states and 22856 transitions. [2021-12-14 17:39:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 17:39:23,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 78 [2021-12-14 17:39:23,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:39:23,058 INFO L225 Difference]: With dead ends: 15281 [2021-12-14 17:39:23,058 INFO L226 Difference]: Without dead ends: 7613 [2021-12-14 17:39:23,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:39:23,092 INFO L933 BasicCegarLoop]: 3596 mSDtfsCounter, 4606 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 2094 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4855 SdHoareTripleChecker+Valid, 4633 SdHoareTripleChecker+Invalid, 2879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2094 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-14 17:39:23,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4855 Valid, 4633 Invalid, 2879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2094 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-14 17:39:23,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7613 states. [2021-12-14 17:39:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7613 to 7599. [2021-12-14 17:39:23,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7599 states, 5345 states have (on average 1.362020579981291) internal successors, (7280), 5480 states have internal predecessors, (7280), 1895 states have call successors, (1895), 359 states have call predecessors, (1895), 358 states have return successors, (1894), 1875 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-14 17:39:23,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7599 states to 7599 states and 11069 transitions. [2021-12-14 17:39:23,325 INFO L78 Accepts]: Start accepts. Automaton has 7599 states and 11069 transitions. Word has length 78 [2021-12-14 17:39:23,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:39:23,325 INFO L470 AbstractCegarLoop]: Abstraction has 7599 states and 11069 transitions. [2021-12-14 17:39:23,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-14 17:39:23,326 INFO L276 IsEmpty]: Start isEmpty. Operand 7599 states and 11069 transitions. [2021-12-14 17:39:23,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-14 17:39:23,333 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:39:23,333 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:39:23,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 17:39:23,333 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:39:23,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:39:23,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1410894745, now seen corresponding path program 1 times [2021-12-14 17:39:23,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:39:23,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039856672] [2021-12-14 17:39:23,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:39:23,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:39:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:23,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:39:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:23,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:39:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:23,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:39:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:23,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-14 17:39:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:23,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:39:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:23,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:39:23,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:39:23,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039856672] [2021-12-14 17:39:23,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039856672] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:39:23,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337659628] [2021-12-14 17:39:23,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:39:23,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:39:23,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:39:23,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 17:39:23,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 17:39:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:24,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 2846 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 17:39:24,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 17:39:24,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:39:24,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 17:39:24,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337659628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:39:24,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 17:39:24,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2021-12-14 17:39:24,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831473207] [2021-12-14 17:39:24,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:39:24,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:39:24,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:39:24,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:39:24,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 17:39:24,377 INFO L87 Difference]: Start difference. First operand 7599 states and 11069 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-14 17:39:24,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:39:24,612 INFO L93 Difference]: Finished difference Result 15201 states and 22141 transitions. [2021-12-14 17:39:24,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 17:39:24,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 78 [2021-12-14 17:39:24,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:39:24,641 INFO L225 Difference]: With dead ends: 15201 [2021-12-14 17:39:24,641 INFO L226 Difference]: Without dead ends: 7599 [2021-12-14 17:39:24,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-14 17:39:24,662 INFO L933 BasicCegarLoop]: 4106 mSDtfsCounter, 1 mSDsluCounter, 8204 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 12310 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:39:24,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 12310 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 17:39:24,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2021-12-14 17:39:24,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 7599. [2021-12-14 17:39:24,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7599 states, 5345 states have (on average 1.3614593077642656) internal successors, (7277), 5480 states have internal predecessors, (7277), 1895 states have call successors, (1895), 359 states have call predecessors, (1895), 358 states have return successors, (1894), 1875 states have call predecessors, (1894), 1894 states have call successors, (1894) [2021-12-14 17:39:25,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7599 states to 7599 states and 11066 transitions. [2021-12-14 17:39:25,024 INFO L78 Accepts]: Start accepts. Automaton has 7599 states and 11066 transitions. Word has length 78 [2021-12-14 17:39:25,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:39:25,026 INFO L470 AbstractCegarLoop]: Abstraction has 7599 states and 11066 transitions. [2021-12-14 17:39:25,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-14 17:39:25,026 INFO L276 IsEmpty]: Start isEmpty. Operand 7599 states and 11066 transitions. [2021-12-14 17:39:25,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-14 17:39:25,037 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:39:25,037 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:39:25,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 17:39:25,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:39:25,256 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:39:25,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:39:25,256 INFO L85 PathProgramCache]: Analyzing trace with hash 2120349762, now seen corresponding path program 1 times [2021-12-14 17:39:25,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:39:25,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457010013] [2021-12-14 17:39:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:39:25,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:39:25,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:25,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 17:39:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:25,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-14 17:39:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:25,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 17:39:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:25,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 17:39:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:25,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 17:39:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:25,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 17:39:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:25,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:39:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:39:25,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 17:39:25,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:39:25,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457010013] [2021-12-14 17:39:25,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457010013] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:39:25,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052326567] [2021-12-14 17:39:25,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:39:25,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:39:25,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:39:25,781 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 17:39:25,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process