./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 4d014703 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-4d01470 [2021-11-02 18:54:05,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 18:54:05,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 18:54:06,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 18:54:06,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 18:54:06,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 18:54:06,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 18:54:06,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 18:54:06,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 18:54:06,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 18:54:06,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 18:54:06,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 18:54:06,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 18:54:06,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 18:54:06,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 18:54:06,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 18:54:06,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 18:54:06,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 18:54:06,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 18:54:06,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 18:54:06,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 18:54:06,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 18:54:06,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 18:54:06,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 18:54:06,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 18:54:06,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 18:54:06,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 18:54:06,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 18:54:06,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 18:54:06,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 18:54:06,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 18:54:06,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 18:54:06,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 18:54:06,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 18:54:06,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 18:54:06,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 18:54:06,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 18:54:06,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 18:54:06,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 18:54:06,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 18:54:06,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 18:54:06,070 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 18:54:06,085 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 18:54:06,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 18:54:06,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 18:54:06,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 18:54:06,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 18:54:06,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 18:54:06,087 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 18:54:06,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 18:54:06,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 18:54:06,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 18:54:06,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 18:54:06,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 18:54:06,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 18:54:06,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 18:54:06,088 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 18:54:06,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 18:54:06,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 18:54:06,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 18:54:06,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 18:54:06,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 18:54:06,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 18:54:06,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 18:54:06,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 18:54:06,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 18:54:06,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 18:54:06,090 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 18:54:06,090 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 18:54:06,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 18:54:06,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 18:54:06,090 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 046f5371192e04edfcb404c42cbf904dba4f5de1b9feb443275d06b623bd9ae5 [2021-11-02 18:54:06,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 18:54:06,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 18:54:06,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 18:54:06,311 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 18:54:06,311 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 18:54:06,312 INFO L432 ainManager$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 [2021-11-02 18:54:06,382 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/009058979/edef8f2124424ff5931c7d09db7e3a79/FLAG183369dae [2021-11-02 18:54:07,144 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 18:54:07,145 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 [2021-11-02 18:54:07,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/009058979/edef8f2124424ff5931c7d09db7e3a79/FLAG183369dae [2021-11-02 18:54:07,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/009058979/edef8f2124424ff5931c7d09db7e3a79 [2021-11-02 18:54:07,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 18:54:07,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 18:54:07,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 18:54:07,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 18:54:07,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 18:54:07,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 06:54:07" (1/1) ... [2021-11-02 18:54:07,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c28d787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:54:07, skipping insertion in model container [2021-11-02 18:54:07,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 06:54:07" (1/1) ... [2021-11-02 18:54:07,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 18:54:07,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 18:54:08,321 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6674] [2021-11-02 18:54:08,324 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] [2021-11-02 18:54:09,146 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] [2021-11-02 18:54:15,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 18:54:15,687 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 18:54:15,776 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6674] [2021-11-02 18:54:15,776 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] [2021-11-02 18:54:15,791 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] [2021-11-02 18:54:16,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 18:54:16,641 INFO L208 MainTranslator]: Completed translation [2021-11-02 18:54:16,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:54:16 WrapperNode [2021-11-02 18:54:16,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 18:54:16,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 18:54:16,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 18:54:16,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 18:54:16,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:54:16" (1/1) ... [2021-11-02 18:54:16,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:54:16" (1/1) ... [2021-11-02 18:54:18,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 18:54:18,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 18:54:18,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 18:54:18,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 18:54:18,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:54:16" (1/1) ... [2021-11-02 18:54:18,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:54:16" (1/1) ... [2021-11-02 18:54:18,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:54:16" (1/1) ... [2021-11-02 18:54:18,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:54:16" (1/1) ... [2021-11-02 18:54:19,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:54:16" (1/1) ... [2021-11-02 18:54:19,859 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:54:16" (1/1) ... [2021-11-02 18:54:19,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:54:16" (1/1) ... [2021-11-02 18:54:20,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 18:54:20,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 18:54:20,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 18:54:20,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 18:54:20,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:54:16" (1/1) ... [2021-11-02 18:54:20,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 18:54:20,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 18:54:20,253 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) [2021-11-02 18:54:20,269 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 [2021-11-02 18:54:20,290 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-02 18:54:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-02 18:54:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-02 18:54:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-02 18:54:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-02 18:54:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-02 18:54:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-02 18:54:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-02 18:54:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-02 18:54:20,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 18:54:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 18:54:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-02 18:54:20,292 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-02 18:54:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 18:54:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-02 18:54:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-02 18:54:20,292 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-02 18:54:20,292 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-02 18:54:20,292 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-02 18:54:20,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 18:54:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 18:54:20,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 18:54:20,293 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-02 18:54:20,293 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-02 18:54:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-02 18:54:20,293 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-02 18:54:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-02 18:54:20,293 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-02 18:54:20,294 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-02 18:54:20,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 18:54:20,294 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 18:54:20,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 18:54:20,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 18:54:20,294 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-02 18:54:20,294 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-02 18:54:20,294 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-02 18:54:20,294 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-02 18:54:20,295 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-02 18:54:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-02 18:54:20,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 18:54:20,295 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-02 18:54:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-02 18:54:20,295 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-02 18:54:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-02 18:54:20,295 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-02 18:54:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-02 18:54:20,296 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-02 18:54:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-02 18:54:20,296 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-02 18:54:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-02 18:54:20,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 18:54:20,296 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-02 18:54:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-02 18:54:20,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 18:54:20,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 18:54:20,297 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-02 18:54:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-02 18:54:20,297 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-02 18:54:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-02 18:54:20,297 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-02 18:54:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-02 18:54:20,297 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-02 18:54:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-02 18:54:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-02 18:54:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-02 18:54:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-02 18:54:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-02 18:54:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-02 18:54:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-02 18:54:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 18:54:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 18:54:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-02 18:54:20,299 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-02 18:54:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-02 18:54:20,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-02 18:54:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 18:54:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 18:54:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-02 18:54:20,299 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-02 18:54:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-02 18:54:20,299 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-02 18:54:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-02 18:54:20,300 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-02 18:54:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-02 18:54:20,300 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-02 18:54:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-02 18:54:20,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-02 18:54:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 18:54:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 18:54:20,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-02 18:54:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-02 18:54:20,301 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-02 18:55:37,069 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 18:55:37,070 INFO L299 CfgBuilder]: Removed 10186 assume(true) statements. [2021-11-02 18:55:37,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 06:55:37 BoogieIcfgContainer [2021-11-02 18:55:37,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 18:55:37,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 18:55:37,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 18:55:37,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 18:55:37,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 06:54:07" (1/3) ... [2021-11-02 18:55:37,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60171974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 06:55:37, skipping insertion in model container [2021-11-02 18:55:37,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 06:54:16" (2/3) ... [2021-11-02 18:55:37,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60171974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 06:55:37, skipping insertion in model container [2021-11-02 18:55:37,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 06:55:37" (3/3) ... [2021-11-02 18:55:37,088 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 [2021-11-02 18:55:37,092 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 18:55:37,092 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-02 18:55:37,178 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 18:55:37,192 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 [2021-11-02 18:55:37,193 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-02 18:55:37,302 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) [2021-11-02 18:55:37,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-02 18:55:37,349 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 18:55:37,349 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] [2021-11-02 18:55:37,350 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] === [2021-11-02 18:55:37,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 18:55:37,355 INFO L85 PathProgramCache]: Analyzing trace with hash -942835593, now seen corresponding path program 1 times [2021-11-02 18:55:37,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 18:55:37,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196194106] [2021-11-02 18:55:37,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 18:55:37,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 18:55:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 18:55:38,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 18:55:38,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 18:55:38,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196194106] [2021-11-02 18:55:38,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196194106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 18:55:38,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 18:55:38,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 18:55:38,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032373303] [2021-11-02 18:55:38,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 18:55:38,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 18:55:38,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 18:55:38,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 18:55:38,842 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) [2021-11-02 18:55:41,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:56:00,225 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:56:34,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-02 18:58:05,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:58:16,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:58:36,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 18:58:36,923 INFO L93 Difference]: Finished difference Result 19736 states and 28308 transitions. [2021-11-02 18:58:36,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 18:58:36,925 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 [2021-11-02 18:58:36,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 18:58:36,988 INFO L225 Difference]: With dead ends: 19736 [2021-11-02 18:58:36,988 INFO L226 Difference]: Without dead ends: 9808 [2021-11-02 18:58:37,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.16ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 18:58:37,043 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 0 mSDsluCounter, 13656 mSDsCounter, 0 mSdLazyCounter, 26768 mSolverCounterSat, 52 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 166996.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 26825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 213.50ms SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 26768 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 176233.18ms IncrementalHoareTripleChecker+Time [2021-11-02 18:58:37,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 714 Invalid, 26825 Unknown, 0 Unchecked, 213.50ms Time], IncrementalHoareTripleChecker [52 Valid, 26768 Invalid, 5 Unknown, 0 Unchecked, 176233.18ms Time] [2021-11-02 18:58:37,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9808 states. [2021-11-02 18:58:37,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9808 to 9808. [2021-11-02 18:58:37,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9808 states, 9624 states have (on average 1.3873649210307564) internal successors, (13352), 9635 states have internal predecessors, (13352), 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) [2021-11-02 18:58:37,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9808 states to 9808 states and 13640 transitions. [2021-11-02 18:58:37,397 INFO L78 Accepts]: Start accepts. Automaton has 9808 states and 13640 transitions. Word has length 73 [2021-11-02 18:58:37,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 18:58:37,397 INFO L470 AbstractCegarLoop]: Abstraction has 9808 states and 13640 transitions. [2021-11-02 18:58:37,398 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) [2021-11-02 18:58:37,399 INFO L276 IsEmpty]: Start isEmpty. Operand 9808 states and 13640 transitions. [2021-11-02 18:58:37,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-02 18:58:37,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 18:58:37,422 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] [2021-11-02 18:58:37,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 18:58:37,422 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] === [2021-11-02 18:58:37,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 18:58:37,424 INFO L85 PathProgramCache]: Analyzing trace with hash 376197114, now seen corresponding path program 1 times [2021-11-02 18:58:37,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 18:58:37,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308413252] [2021-11-02 18:58:37,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 18:58:37,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 18:58:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 18:58:38,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 18:58:38,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 18:58:38,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308413252] [2021-11-02 18:58:38,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308413252] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 18:58:38,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 18:58:38,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 18:58:38,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53877323] [2021-11-02 18:58:38,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 18:58:38,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 18:58:38,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 18:58:38,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 18:58:38,316 INFO L87 Difference]: Start difference. First operand 9808 states and 13640 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-02 18:58:40,703 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:58:48,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 18:59:54,842 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 19:00:11,973 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 19:01:57,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 19:02:24,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-02 19:02:32,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:02:32,177 INFO L93 Difference]: Finished difference Result 28496 states and 39866 transitions. [2021-11-02 19:02:32,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 19:02:32,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 74 [2021-11-02 19:02:32,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:02:32,295 INFO L225 Difference]: With dead ends: 28496 [2021-11-02 19:02:32,296 INFO L226 Difference]: Without dead ends: 18757 [2021-11-02 19:02:32,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.47ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:02:32,350 INFO L933 BasicCegarLoop]: 565 mSDtfsCounter, 12531 mSDsluCounter, 13624 mSDsCounter, 0 mSdLazyCounter, 27983 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 217776.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12531 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 27995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 255.87ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27983 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 231369.20ms IncrementalHoareTripleChecker+Time [2021-11-02 19:02:32,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12531 Valid, 970 Invalid, 27995 Unknown, 0 Unchecked, 255.87ms Time], IncrementalHoareTripleChecker [7 Valid, 27983 Invalid, 5 Unknown, 0 Unchecked, 231369.20ms Time] [2021-11-02 19:02:32,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18757 states. [2021-11-02 19:02:32,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18757 to 18554. [2021-11-02 19:02:32,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18554 states, 18205 states have (on average 1.3862125789618236) internal successors, (25236), 18227 states have internal predecessors, (25236), 275 states have call successors, (275), 74 states have call predecessors, (275), 71 states have return successors, (531), 265 states have call predecessors, (531), 275 states have call successors, (531) [2021-11-02 19:02:32,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18554 states to 18554 states and 26042 transitions. [2021-11-02 19:02:32,851 INFO L78 Accepts]: Start accepts. Automaton has 18554 states and 26042 transitions. Word has length 74 [2021-11-02 19:02:32,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:02:32,851 INFO L470 AbstractCegarLoop]: Abstraction has 18554 states and 26042 transitions. [2021-11-02 19:02:32,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-02 19:02:32,852 INFO L276 IsEmpty]: Start isEmpty. Operand 18554 states and 26042 transitions. [2021-11-02 19:02:32,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-02 19:02:32,863 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:02:32,863 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] [2021-11-02 19:02:32,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 19:02:32,863 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] === [2021-11-02 19:02:32,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:02:32,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1807666124, now seen corresponding path program 1 times [2021-11-02 19:02:32,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:02:32,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462639081] [2021-11-02 19:02:32,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:02:32,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:02:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:02:33,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 19:02:33,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:02:33,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462639081] [2021-11-02 19:02:33,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462639081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:02:33,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:02:33,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 19:02:33,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665598819] [2021-11-02 19:02:33,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 19:02:33,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:02:33,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 19:02:33,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:02:33,758 INFO L87 Difference]: Start difference. First operand 18554 states and 26042 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-02 19:02:36,146 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 19:04:14,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-02 19:04:23,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 19:06:02,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 19:06:05,033 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 19:06:07,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-02 19:06:37,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 19:06:37,892 INFO L93 Difference]: Finished difference Result 55364 states and 77756 transitions. [2021-11-02 19:06:37,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 19:06:37,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 75 [2021-11-02 19:06:37,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 19:06:38,191 INFO L225 Difference]: With dead ends: 55364 [2021-11-02 19:06:38,192 INFO L226 Difference]: Without dead ends: 36879 [2021-11-02 19:06:38,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:06:38,280 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 13381 mSDsluCounter, 13591 mSDsCounter, 0 mSdLazyCounter, 29143 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 224206.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13383 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 29149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 242.37ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29143 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 241257.19ms IncrementalHoareTripleChecker+Time [2021-11-02 19:06:38,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13383 Valid, 746 Invalid, 29149 Unknown, 0 Unchecked, 242.37ms Time], IncrementalHoareTripleChecker [1 Valid, 29143 Invalid, 5 Unknown, 0 Unchecked, 241257.19ms Time] [2021-11-02 19:06:38,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36879 states. [2021-11-02 19:06:38,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36879 to 36495. [2021-11-02 19:06:39,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36495 states, 35810 states have (on average 1.3897793912314995) internal successors, (49768), 35851 states have internal predecessors, (49768), 540 states have call successors, (540), 148 states have call predecessors, (540), 142 states have return successors, (1054), 521 states have call predecessors, (1054), 540 states have call successors, (1054) [2021-11-02 19:06:39,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36495 states to 36495 states and 51362 transitions. [2021-11-02 19:06:39,146 INFO L78 Accepts]: Start accepts. Automaton has 36495 states and 51362 transitions. Word has length 75 [2021-11-02 19:06:39,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 19:06:39,147 INFO L470 AbstractCegarLoop]: Abstraction has 36495 states and 51362 transitions. [2021-11-02 19:06:39,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-02 19:06:39,151 INFO L276 IsEmpty]: Start isEmpty. Operand 36495 states and 51362 transitions. [2021-11-02 19:06:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-02 19:06:39,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 19:06:39,163 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] [2021-11-02 19:06:39,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 19:06:39,163 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] === [2021-11-02 19:06:39,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 19:06:39,163 INFO L85 PathProgramCache]: Analyzing trace with hash -358170467, now seen corresponding path program 1 times [2021-11-02 19:06:39,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 19:06:39,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578757860] [2021-11-02 19:06:39,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 19:06:39,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 19:06:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 19:06:39,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 19:06:39,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 19:06:39,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578757860] [2021-11-02 19:06:39,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578757860] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 19:06:39,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 19:06:39,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 19:06:39,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245252269] [2021-11-02 19:06:39,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 19:06:39,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 19:06:39,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 19:06:39,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 19:06:39,965 INFO L87 Difference]: Start difference. First operand 36495 states and 51362 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-11-02 19:06:42,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 19:07:05,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-02 19:08:06,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15