./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c25ee40b84da0e037e1d80db414ed17491ea7807f66e1b888adc8df58baa009c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 02:10:57,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:10:57,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:10:57,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:10:57,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:10:57,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:10:57,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:10:57,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:10:57,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:10:57,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:10:57,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:10:57,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:10:57,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:10:57,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:10:57,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:10:57,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:10:57,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:10:57,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:10:57,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:10:57,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:10:57,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:10:57,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:10:57,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:10:57,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:10:57,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:10:57,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:10:57,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:10:57,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:10:57,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:10:57,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:10:57,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:10:57,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:10:57,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:10:57,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:10:57,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:10:57,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:10:57,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:10:57,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:10:57,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:10:57,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:10:57,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:10:57,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 02:10:57,594 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:10:57,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:10:57,594 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:10:57,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:10:57,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 02:10:57,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 02:10:57,596 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 02:10:57,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:10:57,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:10:57,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:10:57,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:10:57,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:10:57,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:10:57,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:10:57,598 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:10:57,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:10:57,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:10:57,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:10:57,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:10:57,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:10:57,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:10:57,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:10:57,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:10:57,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 02:10:57,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:10:57,600 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 02:10:57,600 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 02:10:57,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:10:57,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:10:57,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c25ee40b84da0e037e1d80db414ed17491ea7807f66e1b888adc8df58baa009c [2021-11-23 02:10:57,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:10:57,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:10:57,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:10:57,817 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:10:57,818 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:10:57,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-23 02:10:57,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/103bda3a0/2eb66577de054c80befb6ad33c6720cc/FLAGbd1e1b17a [2021-11-23 02:10:58,672 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:10:58,673 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-23 02:10:58,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/103bda3a0/2eb66577de054c80befb6ad33c6720cc/FLAGbd1e1b17a [2021-11-23 02:10:59,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/103bda3a0/2eb66577de054c80befb6ad33c6720cc [2021-11-23 02:10:59,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:10:59,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:10:59,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:10:59,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:10:59,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:10:59,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:10:59" (1/1) ... [2021-11-23 02:10:59,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57cff7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:10:59, skipping insertion in model container [2021-11-23 02:10:59,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:10:59" (1/1) ... [2021-11-23 02:10:59,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:10:59,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:11:09,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[887989,888002] [2021-11-23 02:11:09,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[888134,888147] [2021-11-23 02:11:09,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:11:09,808 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:11:10,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[887989,888002] [2021-11-23 02:11:10,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[888134,888147] [2021-11-23 02:11:10,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:11:10,956 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:11:10,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:10 WrapperNode [2021-11-23 02:11:10,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:11:10,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:11:10,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:11:10,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:11:10,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:10" (1/1) ... [2021-11-23 02:11:11,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:10" (1/1) ... [2021-11-23 02:11:12,630 INFO L137 Inliner]: procedures = 1122, calls = 12823, calls flagged for inlining = 2496, calls inlined = 5599, statements flattened = 69953 [2021-11-23 02:11:12,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:11:12,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:11:12,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:11:12,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:11:12,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:10" (1/1) ... [2021-11-23 02:11:12,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:10" (1/1) ... [2021-11-23 02:11:12,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:10" (1/1) ... [2021-11-23 02:11:12,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:10" (1/1) ... [2021-11-23 02:11:13,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:10" (1/1) ... [2021-11-23 02:11:13,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:10" (1/1) ... [2021-11-23 02:11:14,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:10" (1/1) ... [2021-11-23 02:11:14,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:11:14,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:11:14,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:11:14,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:11:14,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:10" (1/1) ... [2021-11-23 02:11:14,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:11:14,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 02:11:14,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:11:14,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:11:14,389 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-23 02:11:14,390 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-23 02:11:14,390 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-23 02:11:14,390 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-23 02:11:14,390 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-23 02:11:14,390 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-23 02:11:14,390 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-23 02:11:14,390 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-23 02:11:14,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:11:14,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:11:14,391 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-23 02:11:14,391 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-23 02:11:14,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:11:14,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:11:14,391 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:11:14,391 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-23 02:11:14,391 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-23 02:11:14,392 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-23 02:11:14,392 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-23 02:11:14,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:11:14,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:11:14,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:11:14,392 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 02:11:14,392 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-23 02:11:14,392 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-23 02:11:14,393 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-23 02:11:14,393 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-23 02:11:14,393 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-23 02:11:14,393 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-23 02:11:14,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:11:14,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 02:11:14,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 02:11:14,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:11:14,393 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-23 02:11:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-23 02:11:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-23 02:11:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-23 02:11:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-23 02:11:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-23 02:11:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:11:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-23 02:11:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-23 02:11:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-23 02:11:14,395 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-23 02:11:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-23 02:11:14,395 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-23 02:11:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-23 02:11:14,395 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-23 02:11:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-23 02:11:14,395 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-23 02:11:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:11:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-23 02:11:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-23 02:11:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:11:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:11:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-23 02:11:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-23 02:11:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-23 02:11:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-23 02:11:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-23 02:11:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-23 02:11:14,397 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-23 02:11:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-23 02:11:14,397 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-23 02:11:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-23 02:11:14,397 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-23 02:11:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-23 02:11:14,397 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-23 02:11:14,398 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-23 02:11:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:11:14,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:11:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-23 02:11:14,398 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-23 02:11:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:11:14,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:11:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:11:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:11:14,399 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-23 02:11:14,399 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-23 02:11:14,399 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-23 02:11:14,399 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-23 02:11:14,399 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-23 02:11:14,399 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-23 02:11:14,399 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-23 02:11:14,399 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-23 02:11:14,399 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:11:14,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:11:14,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:11:14,400 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 02:11:14,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 02:11:14,400 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-23 02:11:14,400 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-23 02:11:16,910 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:11:16,912 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:11:53,420 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 02:11:53,421 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 02:11:53,421 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 02:11:53,421 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-23 02:11:53,421 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res#1 := 0; [2021-11-23 02:11:53,421 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#4: ldv_switch_6_#res#1 := 0; [2021-11-23 02:11:53,421 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#3: ldv_switch_6_#res#1 := 0; [2021-11-23 02:11:53,422 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#2: ldv_switch_6_#res#1 := 0; [2021-11-23 02:11:53,422 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#1: ldv_switch_6_#res#1 := 0; [2021-11-23 02:11:53,422 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#1: ldv_switch_5_#res#1 := 0; [2021-11-23 02:11:53,422 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#2: ldv_switch_5_#res#1 := 0; [2021-11-23 02:11:53,422 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_7_switch_break#1: ldv_switch_7_#res#1 := 0; [2021-11-23 02:11:53,422 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#1: ldv_switch_4_#res#1 := 0; [2021-11-23 02:11:53,422 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res#1 := 0; [2021-11-23 02:11:53,423 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#3: ldv_switch_4_#res#1 := 0; [2021-11-23 02:11:53,423 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#2: ldv_switch_8_#res#1 := 0; [2021-11-23 02:11:53,423 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#1: ldv_switch_8_#res#1 := 0; [2021-11-23 02:11:53,423 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res#1 := 0; [2021-11-23 02:11:53,423 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res#1 := 0; [2021-11-23 02:11:53,423 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 02:11:53,423 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 02:11:53,423 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#1: ldv_switch_3_#res#1 := 0; [2021-11-23 02:11:53,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res#1 := 0; [2021-11-23 02:11:53,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_9_switch_break#1: ldv_switch_9_#res#1 := 0; [2021-11-23 02:11:53,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:11:53,484 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:11:53,517 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:11:53,518 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 02:11:53,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:53 BoogieIcfgContainer [2021-11-23 02:11:53,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:11:53,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:11:53,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:11:53,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:11:53,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:10:59" (1/3) ... [2021-11-23 02:11:53,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2dad55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:53, skipping insertion in model container [2021-11-23 02:11:53,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:10" (2/3) ... [2021-11-23 02:11:53,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2dad55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:53, skipping insertion in model container [2021-11-23 02:11:53,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:53" (3/3) ... [2021-11-23 02:11:53,538 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-23 02:11:53,541 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:11:53,541 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-23 02:11:53,611 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:11:53,617 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:11:53,618 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-23 02:11:53,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 12799 states, 12621 states have (on average 1.344901354884716) internal successors, (16974), 12636 states have internal predecessors, (16974), 134 states have call successors, (134), 37 states have call predecessors, (134), 37 states have return successors, (134), 132 states have call predecessors, (134), 134 states have call successors, (134) [2021-11-23 02:11:53,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-11-23 02:11:53,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:11:53,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:11:53,790 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-23 02:11:53,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:11:53,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2067551799, now seen corresponding path program 1 times [2021-11-23 02:11:53,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:11:53,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275374498] [2021-11-23 02:11:53,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:53,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:11:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:11:55,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:11:55,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:11:55,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275374498] [2021-11-23 02:11:55,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275374498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:11:55,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:11:55,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:11:55,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113626259] [2021-11-23 02:11:55,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:11:55,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:11:55,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:11:55,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:11:55,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:11:55,524 INFO L87 Difference]: Start difference. First operand has 12799 states, 12621 states have (on average 1.344901354884716) internal successors, (16974), 12636 states have internal predecessors, (16974), 134 states have call successors, (134), 37 states have call predecessors, (134), 37 states have return successors, (134), 132 states have call predecessors, (134), 134 states have call successors, (134) Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:11:56,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:11:56,461 INFO L93 Difference]: Finished difference Result 36607 states and 49649 transitions. [2021-11-23 02:11:56,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:11:56,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 312 [2021-11-23 02:11:56,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:11:56,605 INFO L225 Difference]: With dead ends: 36607 [2021-11-23 02:11:56,605 INFO L226 Difference]: Without dead ends: 23692 [2021-11-23 02:11:56,685 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 [2021-11-23 02:11:56,687 INFO L933 BasicCegarLoop]: 17605 mSDtfsCounter, 15920 mSDsluCounter, 17110 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15920 SdHoareTripleChecker+Valid, 34715 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:11:56,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15920 Valid, 34715 Invalid, 90 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:11:56,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23692 states. [2021-11-23 02:11:57,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23692 to 23672. [2021-11-23 02:11:57,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23672 states, 23329 states have (on average 1.32521754040036) internal successors, (30916), 23353 states have internal predecessors, (30916), 262 states have call successors, (262), 74 states have call predecessors, (262), 74 states have return successors, (262), 258 states have call predecessors, (262), 262 states have call successors, (262) [2021-11-23 02:11:57,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23672 states to 23672 states and 31440 transitions. [2021-11-23 02:11:57,334 INFO L78 Accepts]: Start accepts. Automaton has 23672 states and 31440 transitions. Word has length 312 [2021-11-23 02:11:57,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:11:57,337 INFO L470 AbstractCegarLoop]: Abstraction has 23672 states and 31440 transitions. [2021-11-23 02:11:57,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:11:57,338 INFO L276 IsEmpty]: Start isEmpty. Operand 23672 states and 31440 transitions. [2021-11-23 02:11:57,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2021-11-23 02:11:57,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:11:57,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:11:57,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:11:57,372 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-23 02:11:57,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:11:57,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1131076202, now seen corresponding path program 1 times [2021-11-23 02:11:57,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:11:57,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975346182] [2021-11-23 02:11:57,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:57,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:11:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:11:58,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:11:58,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:11:58,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975346182] [2021-11-23 02:11:58,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975346182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:11:58,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:11:58,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:11:58,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764095899] [2021-11-23 02:11:58,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:11:58,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:11:58,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:11:58,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:11:58,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:11:58,172 INFO L87 Difference]: Start difference. First operand 23672 states and 31440 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:11:59,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:11:59,733 INFO L93 Difference]: Finished difference Result 69352 states and 92382 transitions. [2021-11-23 02:11:59,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:11:59,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 313 [2021-11-23 02:11:59,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:11:59,919 INFO L225 Difference]: With dead ends: 69352 [2021-11-23 02:11:59,920 INFO L226 Difference]: Without dead ends: 46325 [2021-11-23 02:11:59,992 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 [2021-11-23 02:11:59,994 INFO L933 BasicCegarLoop]: 16274 mSDtfsCounter, 15151 mSDsluCounter, 16071 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15151 SdHoareTripleChecker+Valid, 32345 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:11:59,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15151 Valid, 32345 Invalid, 153 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:12:00,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46325 states. [2021-11-23 02:12:00,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46325 to 46299. [2021-11-23 02:12:00,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46299 states, 45666 states have (on average 1.3277712083388078) internal successors, (60634), 45708 states have internal predecessors, (60634), 478 states have call successors, (478), 148 states have call predecessors, (478), 148 states have return successors, (478), 470 states have call predecessors, (478), 478 states have call successors, (478) [2021-11-23 02:12:00,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46299 states to 46299 states and 61590 transitions. [2021-11-23 02:12:00,968 INFO L78 Accepts]: Start accepts. Automaton has 46299 states and 61590 transitions. Word has length 313 [2021-11-23 02:12:00,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:12:00,969 INFO L470 AbstractCegarLoop]: Abstraction has 46299 states and 61590 transitions. [2021-11-23 02:12:00,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:12:00,969 INFO L276 IsEmpty]: Start isEmpty. Operand 46299 states and 61590 transitions. [2021-11-23 02:12:01,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-11-23 02:12:01,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:12:01,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:12:01,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:12:01,023 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-23 02:12:01,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:12:01,023 INFO L85 PathProgramCache]: Analyzing trace with hash -736765153, now seen corresponding path program 1 times [2021-11-23 02:12:01,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:12:01,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067202370] [2021-11-23 02:12:01,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:12:01,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:12:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:12:01,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:12:01,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:12:01,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067202370] [2021-11-23 02:12:01,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067202370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:12:01,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:12:01,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:12:01,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755552587] [2021-11-23 02:12:01,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:12:01,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:12:01,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:12:01,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:12:01,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:12:01,864 INFO L87 Difference]: Start difference. First operand 46299 states and 61590 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:12:04,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:12:04,062 INFO L93 Difference]: Finished difference Result 137215 states and 182804 transitions. [2021-11-23 02:12:04,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:12:04,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 318 [2021-11-23 02:12:04,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:12:04,418 INFO L225 Difference]: With dead ends: 137215 [2021-11-23 02:12:04,418 INFO L226 Difference]: Without dead ends: 91561 [2021-11-23 02:12:04,592 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 [2021-11-23 02:12:04,594 INFO L933 BasicCegarLoop]: 16281 mSDtfsCounter, 15281 mSDsluCounter, 16112 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15281 SdHoareTripleChecker+Valid, 32393 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:12:04,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15281 Valid, 32393 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:12:04,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91561 states. [2021-11-23 02:12:06,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91561 to 91523. [2021-11-23 02:12:06,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91523 states, 90296 states have (on average 1.3291840170107203) internal successors, (120020), 90374 states have internal predecessors, (120020), 924 states have call successors, (924), 296 states have call predecessors, (924), 296 states have return successors, (924), 908 states have call predecessors, (924), 924 states have call successors, (924) [2021-11-23 02:12:06,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91523 states to 91523 states and 121868 transitions. [2021-11-23 02:12:06,904 INFO L78 Accepts]: Start accepts. Automaton has 91523 states and 121868 transitions. Word has length 318 [2021-11-23 02:12:06,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:12:06,905 INFO L470 AbstractCegarLoop]: Abstraction has 91523 states and 121868 transitions. [2021-11-23 02:12:06,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:12:06,905 INFO L276 IsEmpty]: Start isEmpty. Operand 91523 states and 121868 transitions. [2021-11-23 02:12:06,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-11-23 02:12:06,997 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:12:06,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:12:06,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:12:06,998 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-23 02:12:06,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:12:06,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1893563328, now seen corresponding path program 1 times [2021-11-23 02:12:06,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:12:06,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434562288] [2021-11-23 02:12:06,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:12:06,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:12:07,741 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:12:07,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [595496543] [2021-11-23 02:12:07,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:12:07,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:12:07,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 02:12:07,743 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) [2021-11-23 02:12:07,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:12:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:12:12,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 20173 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:12:12,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:12:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:12:13,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:12:13,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:12:13,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434562288] [2021-11-23 02:12:13,055 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:12:13,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595496543] [2021-11-23 02:12:13,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595496543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:12:13,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:12:13,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:12:13,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410676574] [2021-11-23 02:12:13,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:12:13,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:12:13,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:12:13,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:12:13,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:12:13,058 INFO L87 Difference]: Start difference. First operand 91523 states and 121868 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 2 states have internal predecessors, (324), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:12:15,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:12:15,105 INFO L93 Difference]: Finished difference Result 182401 states and 243911 transitions. [2021-11-23 02:12:15,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:12:15,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 2 states have internal predecessors, (324), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2021-11-23 02:12:15,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:12:15,492 INFO L225 Difference]: With dead ends: 182401 [2021-11-23 02:12:15,493 INFO L226 Difference]: Without dead ends: 91523 [2021-11-23 02:12:15,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:12:15,880 INFO L933 BasicCegarLoop]: 16151 mSDtfsCounter, 15828 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15828 SdHoareTripleChecker+Valid, 16157 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:12:15,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15828 Valid, 16157 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:12:15,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91523 states. [2021-11-23 02:12:17,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91523 to 91523. [2021-11-23 02:12:17,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91523 states, 90296 states have (on average 1.3285638344998671) internal successors, (119964), 90374 states have internal predecessors, (119964), 924 states have call successors, (924), 296 states have call predecessors, (924), 296 states have return successors, (924), 908 states have call predecessors, (924), 924 states have call successors, (924) [2021-11-23 02:12:17,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91523 states to 91523 states and 121812 transitions. [2021-11-23 02:12:17,919 INFO L78 Accepts]: Start accepts. Automaton has 91523 states and 121812 transitions. Word has length 326 [2021-11-23 02:12:17,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:12:17,922 INFO L470 AbstractCegarLoop]: Abstraction has 91523 states and 121812 transitions. [2021-11-23 02:12:17,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 2 states have internal predecessors, (324), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:12:17,922 INFO L276 IsEmpty]: Start isEmpty. Operand 91523 states and 121812 transitions. [2021-11-23 02:12:18,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-11-23 02:12:18,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:12:18,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:12:18,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:12:18,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:12:18,252 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-23 02:12:18,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:12:18,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1429580847, now seen corresponding path program 1 times [2021-11-23 02:12:18,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:12:18,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937282884] [2021-11-23 02:12:18,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:12:18,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:12:18,988 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:12:18,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2139539245] [2021-11-23 02:12:18,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:12:18,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:12:18,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 02:12:18,990 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) [2021-11-23 02:12:18,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:12:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:12:23,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 20174 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:12:23,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:12:24,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:12:24,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:12:24,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:12:24,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937282884] [2021-11-23 02:12:24,008 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:12:24,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139539245] [2021-11-23 02:12:24,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139539245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:12:24,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:12:24,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:12:24,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713005892] [2021-11-23 02:12:24,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:12:24,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:12:24,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:12:24,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:12:24,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:12:24,010 INFO L87 Difference]: Start difference. First operand 91523 states and 121812 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 2 states have internal predecessors, (325), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:12:26,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:12:26,182 INFO L93 Difference]: Finished difference Result 182401 states and 243799 transitions. [2021-11-23 02:12:26,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:12:26,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 2 states have internal predecessors, (325), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 327 [2021-11-23 02:12:26,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:12:26,510 INFO L225 Difference]: With dead ends: 182401 [2021-11-23 02:12:26,510 INFO L226 Difference]: Without dead ends: 91523 [2021-11-23 02:12:26,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:12:26,998 INFO L933 BasicCegarLoop]: 16146 mSDtfsCounter, 15830 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15830 SdHoareTripleChecker+Valid, 16146 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:12:26,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15830 Valid, 16146 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:12:27,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91523 states. [2021-11-23 02:12:28,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91523 to 91523. [2021-11-23 02:12:28,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91523 states, 90296 states have (on average 1.327943651989014) internal successors, (119908), 90374 states have internal predecessors, (119908), 924 states have call successors, (924), 296 states have call predecessors, (924), 296 states have return successors, (924), 908 states have call predecessors, (924), 924 states have call successors, (924) [2021-11-23 02:12:29,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91523 states to 91523 states and 121756 transitions. [2021-11-23 02:12:29,080 INFO L78 Accepts]: Start accepts. Automaton has 91523 states and 121756 transitions. Word has length 327 [2021-11-23 02:12:29,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:12:29,081 INFO L470 AbstractCegarLoop]: Abstraction has 91523 states and 121756 transitions. [2021-11-23 02:12:29,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 2 states have internal predecessors, (325), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:12:29,081 INFO L276 IsEmpty]: Start isEmpty. Operand 91523 states and 121756 transitions. [2021-11-23 02:12:29,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-11-23 02:12:29,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:12:29,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:12:29,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:12:29,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:12:29,385 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_openErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_openErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-23 02:12:29,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:12:29,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1367686213, now seen corresponding path program 1 times [2021-11-23 02:12:29,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:12:29,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243338471] [2021-11-23 02:12:29,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:12:29,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:12:30,105 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:12:30,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [33063323] [2021-11-23 02:12:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:12:30,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:12:30,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 02:12:30,120 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:12:30,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:12:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:12:34,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 20175 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 02:12:34,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:12:34,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:12:34,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:12:34,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:12:34,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243338471] [2021-11-23 02:12:34,852 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:12:34,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33063323] [2021-11-23 02:12:34,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33063323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:12:34,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:12:34,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:12:34,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900814145] [2021-11-23 02:12:34,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:12:34,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:12:34,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:12:34,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:12:34,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:12:34,854 INFO L87 Difference]: Start difference. First operand 91523 states and 121756 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 2 states have internal predecessors, (326), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)