./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--stmicro--stmmac--stmmac.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--stmicro--stmmac--stmmac.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 046f5371192e04edfcb404c42cbf904dba4f5de1b9feb443275d06b623bd9ae5 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 13:21:10,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 13:21:10,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 13:21:10,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 13:21:10,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 13:21:10,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 13:21:10,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 13:21:10,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 13:21:10,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 13:21:10,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 13:21:10,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 13:21:10,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 13:21:10,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 13:21:10,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 13:21:10,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 13:21:10,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 13:21:10,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 13:21:10,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 13:21:10,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 13:21:10,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 13:21:10,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 13:21:10,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 13:21:10,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 13:21:10,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 13:21:10,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 13:21:10,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 13:21:10,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 13:21:10,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 13:21:10,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 13:21:10,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 13:21:10,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 13:21:10,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 13:21:10,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 13:21:10,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 13:21:10,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 13:21:10,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 13:21:10,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 13:21:10,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 13:21:10,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 13:21:10,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 13:21:10,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 13:21:10,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 13:21:10,834 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 13:21:10,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 13:21:10,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 13:21:10,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 13:21:10,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 13:21:10,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 13:21:10,836 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 13:21:10,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 13:21:10,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 13:21:10,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 13:21:10,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 13:21:10,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 13:21:10,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 13:21:10,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 13:21:10,837 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 13:21:10,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 13:21:10,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 13:21:10,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 13:21:10,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 13:21:10,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:21:10,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 13:21:10,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 13:21:10,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 13:21:10,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 13:21:10,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 13:21:10,839 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 13:21:10,839 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 13:21:10,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 13:21:10,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 13:21:10,840 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 046f5371192e04edfcb404c42cbf904dba4f5de1b9feb443275d06b623bd9ae5 [2021-11-07 13:21:11,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 13:21:11,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 13:21:11,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 13:21:11,047 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 13:21:11,049 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 13:21:11,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--stmicro--stmmac--stmmac.ko-entry_point.cil.out.i [2021-11-07 13:21:11,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae783a09c/9938716a2f31490286d776d52fc668ce/FLAGc310775e4 [2021-11-07 13:21:11,865 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 13:21:11,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--stmicro--stmmac--stmmac.ko-entry_point.cil.out.i [2021-11-07 13:21:11,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae783a09c/9938716a2f31490286d776d52fc668ce/FLAGc310775e4 [2021-11-07 13:21:12,130 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae783a09c/9938716a2f31490286d776d52fc668ce [2021-11-07 13:21:12,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 13:21:12,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 13:21:12,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 13:21:12,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 13:21:12,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 13:21:12,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:12" (1/1) ... [2021-11-07 13:21:12,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22b20ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:12, skipping insertion in model container [2021-11-07 13:21:12,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:12" (1/1) ... [2021-11-07 13:21:12,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 13:21:12,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 13:21:12,799 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6674] [2021-11-07 13:21:12,799 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6675-6676] [2021-11-07 13:21:13,436 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--stmicro--stmmac--stmmac.ko-entry_point.cil.out.i[206918,206931] [2021-11-07 13:21:18,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:21:19,116 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 13:21:19,186 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6674] [2021-11-07 13:21:19,186 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6675-6676] [2021-11-07 13:21:19,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--stmicro--stmmac--stmmac.ko-entry_point.cil.out.i[206918,206931] [2021-11-07 13:21:19,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:21:19,766 INFO L208 MainTranslator]: Completed translation [2021-11-07 13:21:19,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:19 WrapperNode [2021-11-07 13:21:19,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 13:21:19,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 13:21:19,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 13:21:19,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 13:21:19,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:19" (1/1) ... [2021-11-07 13:21:19,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:19" (1/1) ... [2021-11-07 13:21:21,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 13:21:21,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 13:21:21,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 13:21:21,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 13:21:21,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:19" (1/1) ... [2021-11-07 13:21:21,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:19" (1/1) ... [2021-11-07 13:21:21,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:19" (1/1) ... [2021-11-07 13:21:21,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:19" (1/1) ... [2021-11-07 13:21:22,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:19" (1/1) ... [2021-11-07 13:21:22,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:19" (1/1) ... [2021-11-07 13:21:23,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:19" (1/1) ... [2021-11-07 13:21:23,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 13:21:23,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 13:21:23,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 13:21:23,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 13:21:23,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:19" (1/1) ... [2021-11-07 13:21:23,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:21:23,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:21:23,517 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) [2021-11-07 13:21:23,567 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 [2021-11-07 13:21:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-07 13:21:23,604 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-07 13:21:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-07 13:21:23,604 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-07 13:21:23,605 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-07 13:21:23,605 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-07 13:21:23,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-07 13:21:23,605 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-07 13:21:23,605 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-07 13:21:23,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 13:21:23,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 13:21:23,605 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-07 13:21:23,605 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-07 13:21:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 13:21:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 13:21:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-07 13:21:23,606 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-07 13:21:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-07 13:21:23,606 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-07 13:21:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 13:21:23,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 13:21:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 13:21:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-07 13:21:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-07 13:21:23,607 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-07 13:21:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-07 13:21:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-07 13:21:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-07 13:21:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-07 13:21:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 13:21:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 13:21:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 13:21:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 13:21:23,609 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-07 13:21:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-07 13:21:23,609 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-07 13:21:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-07 13:21:23,609 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-07 13:21:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-07 13:21:23,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 13:21:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-07 13:21:23,610 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-07 13:21:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-07 13:21:23,610 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-07 13:21:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-07 13:21:23,610 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-07 13:21:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-07 13:21:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-07 13:21:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-07 13:21:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-07 13:21:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 13:21:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-07 13:21:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-07 13:21:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 13:21:23,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 13:21:23,612 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-07 13:21:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-07 13:21:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-07 13:21:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-07 13:21:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-07 13:21:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-07 13:21:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-07 13:21:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-07 13:21:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-07 13:21:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-07 13:21:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-07 13:21:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-07 13:21:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-07 13:21:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-07 13:21:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 13:21:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 13:21:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-07 13:21:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-07 13:21:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 13:21:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 13:21:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 13:21:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 13:21:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-07 13:21:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-07 13:21:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-07 13:21:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-07 13:21:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-07 13:21:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-07 13:21:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-07 13:21:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-07 13:21:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 13:21:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 13:21:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 13:21:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 13:21:23,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 13:21:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-07 13:21:23,617 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-07 13:22:54,619 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 13:22:54,619 INFO L299 CfgBuilder]: Removed 10186 assume(true) statements. [2021-11-07 13:22:54,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:22:54 BoogieIcfgContainer [2021-11-07 13:22:54,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 13:22:54,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 13:22:54,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 13:22:54,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 13:22:54,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:21:12" (1/3) ... [2021-11-07 13:22:54,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0d2b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:22:54, skipping insertion in model container [2021-11-07 13:22:54,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:19" (2/3) ... [2021-11-07 13:22:54,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0d2b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:22:54, skipping insertion in model container [2021-11-07 13:22:54,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:22:54" (3/3) ... [2021-11-07 13:22:54,632 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--stmicro--stmmac--stmmac.ko-entry_point.cil.out.i [2021-11-07 13:22:54,635 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 13:22:54,635 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 13:22:54,681 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 13:22:54,685 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 [2021-11-07 13:22:54,685 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 13:22:54,783 INFO L276 IsEmpty]: Start isEmpty. Operand has 9857 states, 9672 states have (on average 1.423904052936311) internal successors, (13772), 9684 states have internal predecessors, (13772), 144 states have call successors, (144), 37 states have call predecessors, (144), 37 states have return successors, (144), 142 states have call predecessors, (144), 144 states have call successors, (144) [2021-11-07 13:22:54,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 13:22:54,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:22:54,820 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] [2021-11-07 13:22:54,821 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_hw_initErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 13:22:54,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:22:54,827 INFO L85 PathProgramCache]: Analyzing trace with hash -942835593, now seen corresponding path program 1 times [2021-11-07 13:22:54,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:22:54,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14230249] [2021-11-07 13:22:54,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:22:54,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:22:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:22:56,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:22:56,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:22:56,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14230249] [2021-11-07 13:22:56,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14230249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:22:56,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:22:56,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:22:56,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164784458] [2021-11-07 13:22:56,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:22:56,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:22:56,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:22:56,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:22:56,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:22:56,088 INFO L87 Difference]: Start difference. First operand has 9857 states, 9672 states have (on average 1.423904052936311) internal successors, (13772), 9684 states have internal predecessors, (13772), 144 states have call successors, (144), 37 states have call predecessors, (144), 37 states have return successors, (144), 142 states have call predecessors, (144), 144 states have call successors, (144) Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:22:57,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:22:57,231 INFO L93 Difference]: Finished difference Result 28792 states and 41553 transitions. [2021-11-07 13:22:57,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:22:57,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-07 13:22:57,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:22:57,338 INFO L225 Difference]: With dead ends: 28792 [2021-11-07 13:22:57,339 INFO L226 Difference]: Without dead ends: 18789 [2021-11-07 13:22:57,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:22:57,403 INFO L933 BasicCegarLoop]: 15185 mSDtfsCounter, 12846 mSDsluCounter, 13698 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 369.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12846 SdHoareTripleChecker+Valid, 28883 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.38ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 446.05ms IncrementalHoareTripleChecker+Time [2021-11-07 13:22:57,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12846 Valid, 28883 Invalid, 97 Unknown, 0 Unchecked, 61.38ms Time], IncrementalHoareTripleChecker [8 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 446.05ms Time] [2021-11-07 13:22:57,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18789 states. [2021-11-07 13:22:57,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18789 to 18545. [2021-11-07 13:22:57,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18545 states, 18196 states have (on average 1.3870081336557485) internal successors, (25238), 18217 states have internal predecessors, (25238), 275 states have call successors, (275), 74 states have call predecessors, (275), 71 states have return successors, (532), 266 states have call predecessors, (532), 275 states have call successors, (532) [2021-11-07 13:22:57,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18545 states to 18545 states and 26045 transitions. [2021-11-07 13:22:57,929 INFO L78 Accepts]: Start accepts. Automaton has 18545 states and 26045 transitions. Word has length 73 [2021-11-07 13:22:57,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:22:57,931 INFO L470 AbstractCegarLoop]: Abstraction has 18545 states and 26045 transitions. [2021-11-07 13:22:57,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:22:57,932 INFO L276 IsEmpty]: Start isEmpty. Operand 18545 states and 26045 transitions. [2021-11-07 13:22:57,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 13:22:57,947 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:22:57,947 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] [2021-11-07 13:22:57,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 13:22:57,948 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_hw_initErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 13:22:57,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:22:57,949 INFO L85 PathProgramCache]: Analyzing trace with hash 251992919, now seen corresponding path program 1 times [2021-11-07 13:22:57,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:22:57,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873953725] [2021-11-07 13:22:57,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:22:57,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:22:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:22:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:22:58,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:22:58,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873953725] [2021-11-07 13:22:58,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873953725] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:22:58,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:22:58,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:22:58,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405298302] [2021-11-07 13:22:58,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:22:58,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:22:58,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:22:58,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:22:58,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:22:58,732 INFO L87 Difference]: Start difference. First operand 18545 states and 26045 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:22:59,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:22:59,772 INFO L93 Difference]: Finished difference Result 55397 states and 77835 transitions. [2021-11-07 13:22:59,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:22:59,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-07 13:22:59,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:22:59,936 INFO L225 Difference]: With dead ends: 55397 [2021-11-07 13:22:59,937 INFO L226 Difference]: Without dead ends: 36920 [2021-11-07 13:23:00,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:23:00,035 INFO L933 BasicCegarLoop]: 16209 mSDtfsCounter, 13533 mSDsluCounter, 13519 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 276.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13533 SdHoareTripleChecker+Valid, 29728 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.34ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 320.34ms IncrementalHoareTripleChecker+Time [2021-11-07 13:23:00,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13533 Valid, 29728 Invalid, 20 Unknown, 0 Unchecked, 34.34ms Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 320.34ms Time] [2021-11-07 13:23:00,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36920 states. [2021-11-07 13:23:00,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36920 to 36552. [2021-11-07 13:23:00,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36552 states, 35867 states have (on average 1.3904982295703572) internal successors, (49873), 35905 states have internal predecessors, (49873), 540 states have call successors, (540), 148 states have call predecessors, (540), 142 states have return successors, (1048), 524 states have call predecessors, (1048), 540 states have call successors, (1048) [2021-11-07 13:23:00,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36552 states to 36552 states and 51461 transitions. [2021-11-07 13:23:00,942 INFO L78 Accepts]: Start accepts. Automaton has 36552 states and 51461 transitions. Word has length 74 [2021-11-07 13:23:00,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:23:00,942 INFO L470 AbstractCegarLoop]: Abstraction has 36552 states and 51461 transitions. [2021-11-07 13:23:00,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:23:00,943 INFO L276 IsEmpty]: Start isEmpty. Operand 36552 states and 51461 transitions. [2021-11-07 13:23:00,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 13:23:00,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:23:00,956 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] [2021-11-07 13:23:00,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 13:23:00,956 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_hw_initErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 13:23:00,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:23:00,957 INFO L85 PathProgramCache]: Analyzing trace with hash 35357056, now seen corresponding path program 1 times [2021-11-07 13:23:00,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:23:00,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48620781] [2021-11-07 13:23:00,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:23:00,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:23:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:23:02,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:23:02,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:23:02,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48620781] [2021-11-07 13:23:02,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48620781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:23:02,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:23:02,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:23:02,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115679762] [2021-11-07 13:23:02,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:23:02,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:23:02,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:23:02,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:23:02,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:23:02,188 INFO L87 Difference]: Start difference. First operand 36552 states and 51461 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:23:03,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:23:03,831 INFO L93 Difference]: Finished difference Result 108998 states and 153407 transitions. [2021-11-07 13:23:03,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:23:03,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-07 13:23:03,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:23:04,179 INFO L225 Difference]: With dead ends: 108998 [2021-11-07 13:23:04,180 INFO L226 Difference]: Without dead ends: 72514 [2021-11-07 13:23:04,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:23:04,316 INFO L933 BasicCegarLoop]: 16258 mSDtfsCounter, 13345 mSDsluCounter, 13474 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 309.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13345 SdHoareTripleChecker+Valid, 29732 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.26ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 364.59ms IncrementalHoareTripleChecker+Time [2021-11-07 13:23:04,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13345 Valid, 29732 Invalid, 65 Unknown, 0 Unchecked, 28.26ms Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 364.59ms Time] [2021-11-07 13:23:04,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72514 states. [2021-11-07 13:23:05,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72514 to 72300. [2021-11-07 13:23:05,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72300 states, 70957 states have (on average 1.3907155037557957) internal successors, (98681), 71031 states have internal predecessors, (98681), 1056 states have call successors, (1056), 296 states have call predecessors, (1056), 284 states have return successors, (2048), 1024 states have call predecessors, (2048), 1056 states have call successors, (2048) [2021-11-07 13:23:06,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72300 states to 72300 states and 101785 transitions. [2021-11-07 13:23:06,282 INFO L78 Accepts]: Start accepts. Automaton has 72300 states and 101785 transitions. Word has length 80 [2021-11-07 13:23:06,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:23:06,286 INFO L470 AbstractCegarLoop]: Abstraction has 72300 states and 101785 transitions. [2021-11-07 13:23:06,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:23:06,287 INFO L276 IsEmpty]: Start isEmpty. Operand 72300 states and 101785 transitions. [2021-11-07 13:23:06,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 13:23:06,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:23:06,302 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] [2021-11-07 13:23:06,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 13:23:06,305 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_hw_initErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 13:23:06,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:23:06,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1017034170, now seen corresponding path program 1 times [2021-11-07 13:23:06,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:23:06,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214199858] [2021-11-07 13:23:06,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:23:06,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:23:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:23:07,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:23:07,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:23:07,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214199858] [2021-11-07 13:23:07,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214199858] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:23:07,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:23:07,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:23:07,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498735919] [2021-11-07 13:23:07,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:23:07,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:23:07,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:23:07,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:23:07,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:23:07,229 INFO L87 Difference]: Start difference. First operand 72300 states and 101785 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:23:10,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:23:10,052 INFO L93 Difference]: Finished difference Result 213630 states and 300869 transitions. [2021-11-07 13:23:10,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:23:10,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-11-07 13:23:10,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:23:10,676 INFO L225 Difference]: With dead ends: 213630 [2021-11-07 13:23:10,676 INFO L226 Difference]: Without dead ends: 141398 [2021-11-07 13:23:10,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:23:10,892 INFO L933 BasicCegarLoop]: 16408 mSDtfsCounter, 13035 mSDsluCounter, 13486 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 330.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13035 SdHoareTripleChecker+Valid, 29894 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.68ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 381.56ms IncrementalHoareTripleChecker+Time [2021-11-07 13:23:10,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13035 Valid, 29894 Invalid, 53 Unknown, 0 Unchecked, 27.68ms Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 381.56ms Time] [2021-11-07 13:23:11,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141398 states. [2021-11-07 13:23:13,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141398 to 141088. [2021-11-07 13:23:13,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141088 states, 138477 states have (on average 1.3924406219083314) internal successors, (192821), 138623 states have internal predecessors, (192821), 2040 states have call successors, (2040), 592 states have call predecessors, (2040), 568 states have return successors, (3952), 1976 states have call predecessors, (3952), 2040 states have call successors, (3952) [2021-11-07 13:23:14,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141088 states to 141088 states and 198813 transitions. [2021-11-07 13:23:14,678 INFO L78 Accepts]: Start accepts. Automaton has 141088 states and 198813 transitions. Word has length 92 [2021-11-07 13:23:14,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:23:14,679 INFO L470 AbstractCegarLoop]: Abstraction has 141088 states and 198813 transitions. [2021-11-07 13:23:14,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:23:14,679 INFO L276 IsEmpty]: Start isEmpty. Operand 141088 states and 198813 transitions. [2021-11-07 13:23:14,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-07 13:23:14,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:23:14,701 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] [2021-11-07 13:23:14,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 13:23:14,701 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION === [stmmac_hw_initErr0ASSERT_VIOLATIONERROR_FUNCTION, stmmac_hw_initErr1ASSERT_VIOLATIONERROR_FUNCTION, stmmac_init_rx_buffersErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 13:23:14,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:23:14,702 INFO L85 PathProgramCache]: Analyzing trace with hash -976534326, now seen corresponding path program 1 times [2021-11-07 13:23:14,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:23:14,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130104337] [2021-11-07 13:23:14,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:23:14,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:23:15,107 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 13:23:15,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663625894] [2021-11-07 13:23:15,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:23:15,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 13:23:15,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:23:15,110 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) [2021-11-07 13:23:15,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 13:23:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:23:20,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 18821 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 13:23:20,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 13:23:20,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:23:20,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 13:23:20,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:23:20,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130104337] [2021-11-07 13:23:20,784 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 13:23:20,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663625894] [2021-11-07 13:23:20,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663625894] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:23:20,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:23:20,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:23:20,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592358997] [2021-11-07 13:23:20,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:23:20,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:23:20,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:23:20,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:23:20,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:23:20,786 INFO L87 Difference]: Start difference. First operand 141088 states and 198813 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:23:23,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:23:23,763 INFO L93 Difference]: Finished difference Result 282156 states and 401534 transitions. [2021-11-07 13:23:23,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:23:23,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-11-07 13:23:23,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:23:24,410 INFO L225 Difference]: With dead ends: 282156 [2021-11-07 13:23:24,410 INFO L226 Difference]: Without dead ends: 141136