./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.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 73f2068ebecd267166c2d24f656fc1164bd021977ce12d612bec590cb9866503 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:16:17,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:16:17,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:16:17,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:16:17,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:16:17,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:16:17,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:16:17,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:16:17,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:16:17,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:16:17,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:16:17,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:16:17,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:16:17,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:16:17,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:16:17,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:16:17,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:16:17,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:16:17,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:16:17,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:16:17,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:16:17,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:16:17,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:16:17,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:16:17,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:16:17,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:16:17,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:16:17,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:16:17,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:16:17,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:16:17,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:16:17,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:16:17,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:16:17,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:16:17,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:16:17,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:16:17,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:16:17,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:16:17,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:16:17,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:16:17,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:16:17,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:16:17,318 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:16:17,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:16:17,319 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:16:17,319 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:16:17,320 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:16:17,320 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:16:17,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:16:17,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:16:17,321 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:16:17,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:16:17,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:16:17,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:16:17,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:16:17,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:16:17,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:16:17,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:16:17,323 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:16:17,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:16:17,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:16:17,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:16:17,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:16:17,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:16:17,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:16:17,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:16:17,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:16:17,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:16:17,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:16:17,325 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:16:17,325 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:16:17,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:16:17,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:16:17,326 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73f2068ebecd267166c2d24f656fc1164bd021977ce12d612bec590cb9866503 [2021-12-14 18:16:17,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:16:17,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:16:17,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:16:17,516 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:16:17,519 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:16:17,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.ko-entry_point.cil.out.i [2021-12-14 18:16:17,564 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0b4736ed/1bf3e8712b6f4cf582222da9f8803235/FLAGf473c6797 [2021-12-14 18:16:18,225 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:16:18,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.ko-entry_point.cil.out.i [2021-12-14 18:16:18,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0b4736ed/1bf3e8712b6f4cf582222da9f8803235/FLAGf473c6797 [2021-12-14 18:16:18,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0b4736ed/1bf3e8712b6f4cf582222da9f8803235 [2021-12-14 18:16:18,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:16:18,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:16:18,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:16:18,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:16:18,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:16:18,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:16:18" (1/1) ... [2021-12-14 18:16:18,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d84df51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:18, skipping insertion in model container [2021-12-14 18:16:18,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:16:18" (1/1) ... [2021-12-14 18:16:18,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:16:18,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:16:20,678 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.ko-entry_point.cil.out.i[381779,381792] [2021-12-14 18:16:20,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:16:20,802 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:16:21,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.ko-entry_point.cil.out.i[381779,381792] [2021-12-14 18:16:21,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:16:21,245 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:16:21,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:21 WrapperNode [2021-12-14 18:16:21,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:16:21,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:16:21,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:16:21,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:16:21,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:21" (1/1) ... [2021-12-14 18:16:21,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:21" (1/1) ... [2021-12-14 18:16:21,574 INFO L137 Inliner]: procedures = 473, calls = 3863, calls flagged for inlining = 218, calls inlined = 198, statements flattened = 7207 [2021-12-14 18:16:21,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:16:21,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:16:21,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:16:21,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:16:21,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:21" (1/1) ... [2021-12-14 18:16:21,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:21" (1/1) ... [2021-12-14 18:16:21,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:21" (1/1) ... [2021-12-14 18:16:21,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:21" (1/1) ... [2021-12-14 18:16:21,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:21" (1/1) ... [2021-12-14 18:16:21,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:21" (1/1) ... [2021-12-14 18:16:21,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:21" (1/1) ... [2021-12-14 18:16:21,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:16:21,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:16:21,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:16:21,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:16:21,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:21" (1/1) ... [2021-12-14 18:16:21,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:16:21,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:16:21,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 18:16:21,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 18:16:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-12-14 18:16:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-12-14 18:16:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:16:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:16:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-14 18:16:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-14 18:16:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:16:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:16:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2021-12-14 18:16:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2021-12-14 18:16:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2021-12-14 18:16:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2021-12-14 18:16:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-12-14 18:16:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-12-14 18:16:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2021-12-14 18:16:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2021-12-14 18:16:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2021-12-14 18:16:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2021-12-14 18:16:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-12-14 18:16:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-12-14 18:16:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-14 18:16:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-14 18:16:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2021-12-14 18:16:21,910 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2021-12-14 18:16:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 18:16:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 18:16:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 18:16:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 18:16:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure alx_link_check [2021-12-14 18:16:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_link_check [2021-12-14 18:16:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2021-12-14 18:16:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2021-12-14 18:16:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2021-12-14 18:16:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2021-12-14 18:16:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 18:16:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 18:16:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2021-12-14 18:16:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2021-12-14 18:16:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2021-12-14 18:16:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2021-12-14 18:16:21,912 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-14 18:16:21,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-14 18:16:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-14 18:16:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-14 18:16:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-14 18:16:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-14 18:16:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2021-12-14 18:16:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2021-12-14 18:16:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 18:16:21,913 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 18:16:21,913 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2021-12-14 18:16:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2021-12-14 18:16:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-14 18:16:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-14 18:16:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:16:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-14 18:16:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-14 18:16:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2021-12-14 18:16:21,914 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2021-12-14 18:16:21,914 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-14 18:16:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-14 18:16:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-14 18:16:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-14 18:16:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2021-12-14 18:16:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2021-12-14 18:16:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-12-14 18:16:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2021-12-14 18:16:21,915 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2021-12-14 18:16:21,915 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:16:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:16:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 18:16:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 18:16:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_detected [2021-12-14 18:16:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_detected [2021-12-14 18:16:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:16:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2021-12-14 18:16:21,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2021-12-14 18:16:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 18:16:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 18:16:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2021-12-14 18:16:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2021-12-14 18:16:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 18:16:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 18:16:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:16:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2021-12-14 18:16:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2021-12-14 18:16:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure alx_change_mtu [2021-12-14 18:16:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_change_mtu [2021-12-14 18:16:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:16:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 18:16:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 18:16:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:16:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:16:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2021-12-14 18:16:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2021-12-14 18:16:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2021-12-14 18:16:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2021-12-14 18:16:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2021-12-14 18:16:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2021-12-14 18:16:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 18:16:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 18:16:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2021-12-14 18:16:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2021-12-14 18:16:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2021-12-14 18:16:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2021-12-14 18:16:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-14 18:16:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-14 18:16:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset [2021-12-14 18:16:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset [2021-12-14 18:16:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 18:16:21,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 18:16:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:16:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-12-14 18:16:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2021-12-14 18:16:21,930 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2021-12-14 18:16:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-14 18:16:21,930 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-14 18:16:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2021-12-14 18:16:21,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2021-12-14 18:16:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2021-12-14 18:16:21,931 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2021-12-14 18:16:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:16:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-14 18:16:21,931 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-14 18:16:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 18:16:21,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 18:16:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:16:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 18:16:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2021-12-14 18:16:21,932 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2021-12-14 18:16:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2021-12-14 18:16:21,932 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2021-12-14 18:16:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2021-12-14 18:16:21,932 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2021-12-14 18:16:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_stats64 [2021-12-14 18:16:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_stats64 [2021-12-14 18:16:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2021-12-14 18:16:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2021-12-14 18:16:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2021-12-14 18:16:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2021-12-14 18:16:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2021-12-14 18:16:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2021-12-14 18:16:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2021-12-14 18:16:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2021-12-14 18:16:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2021-12-14 18:16:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2021-12-14 18:16:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-14 18:16:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-14 18:16:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-14 18:16:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-14 18:16:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:16:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:16:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2021-12-14 18:16:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2021-12-14 18:16:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-12-14 18:16:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-12-14 18:16:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2021-12-14 18:16:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2021-12-14 18:16:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 18:16:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 18:16:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2021-12-14 18:16:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2021-12-14 18:16:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:16:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:16:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-14 18:16:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-14 18:16:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-12-14 18:16:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-12-14 18:16:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:16:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:16:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:16:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:16:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-14 18:16:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-14 18:16:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-14 18:16:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-14 18:16:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_mac_address [2021-12-14 18:16:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_mac_address [2021-12-14 18:16:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-14 18:16:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-14 18:16:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-14 18:16:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-14 18:16:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-14 18:16:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-14 18:16:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-14 18:16:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-14 18:16:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-14 18:16:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2021-12-14 18:16:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2021-12-14 18:16:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2021-12-14 18:16:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2021-12-14 18:16:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 18:16:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 18:16:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-12-14 18:16:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-12-14 18:16:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2021-12-14 18:16:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2021-12-14 18:16:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 18:16:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 18:16:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2021-12-14 18:16:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2021-12-14 18:16:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2021-12-14 18:16:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2021-12-14 18:16:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2021-12-14 18:16:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2021-12-14 18:16:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-14 18:16:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-14 18:16:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 18:16:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 18:16:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 18:16:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 18:16:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-14 18:16:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-14 18:16:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-14 18:16:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-14 18:16:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:16:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:16:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:16:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2021-12-14 18:16:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2021-12-14 18:16:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2021-12-14 18:16:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2021-12-14 18:16:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-14 18:16:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-14 18:16:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2021-12-14 18:16:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2021-12-14 18:16:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-14 18:16:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-14 18:16:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:16:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-14 18:16:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-14 18:16:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_slot_reset [2021-12-14 18:16:21,944 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_slot_reset [2021-12-14 18:16:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:16:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2021-12-14 18:16:21,944 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2021-12-14 18:16:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2021-12-14 18:16:21,944 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2021-12-14 18:16:21,944 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2021-12-14 18:16:21,944 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2021-12-14 18:16:21,945 INFO L130 BoogieDeclarations]: Found specification of procedure alx_ioctl [2021-12-14 18:16:21,945 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_ioctl [2021-12-14 18:16:21,945 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-14 18:16:21,945 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-14 18:16:21,945 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-14 18:16:21,945 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-14 18:16:21,945 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-14 18:16:21,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-14 18:16:21,945 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:16:21,946 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:16:21,946 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-14 18:16:21,946 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-14 18:16:21,946 INFO L130 BoogieDeclarations]: Found specification of procedure alx_fix_features [2021-12-14 18:16:21,946 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_fix_features [2021-12-14 18:16:21,946 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 18:16:21,946 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 18:16:21,946 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2021-12-14 18:16:21,946 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2021-12-14 18:16:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 18:16:21,947 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 18:16:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2021-12-14 18:16:21,947 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2021-12-14 18:16:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:16:21,947 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:16:21,947 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2021-12-14 18:16:21,947 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2021-12-14 18:16:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:16:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2021-12-14 18:16:21,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2021-12-14 18:16:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:16:21,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:16:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2021-12-14 18:16:21,948 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2021-12-14 18:16:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2021-12-14 18:16:21,948 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2021-12-14 18:16:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2021-12-14 18:16:21,949 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2021-12-14 18:16:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2021-12-14 18:16:21,949 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2021-12-14 18:16:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 18:16:21,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 18:16:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2021-12-14 18:16:21,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2021-12-14 18:16:21,949 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-14 18:16:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-14 18:16:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-12-14 18:16:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-12-14 18:16:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2021-12-14 18:16:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2021-12-14 18:16:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2021-12-14 18:16:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2021-12-14 18:16:21,950 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2021-12-14 18:16:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2021-12-14 18:16:21,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-14 18:16:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-14 18:16:21,951 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2021-12-14 18:16:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2021-12-14 18:16:21,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-14 18:16:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-14 18:16:21,951 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2021-12-14 18:16:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2021-12-14 18:16:21,951 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-14 18:16:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-14 18:16:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-14 18:16:21,952 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-14 18:16:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-14 18:16:21,952 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-14 18:16:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-12-14 18:16:21,952 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-12-14 18:16:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2021-12-14 18:16:21,952 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2021-12-14 18:16:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2021-12-14 18:16:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2021-12-14 18:16:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 18:16:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 18:16:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-14 18:16:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-14 18:16:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-14 18:16:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-14 18:16:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:16:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2021-12-14 18:16:21,954 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2021-12-14 18:16:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2021-12-14 18:16:21,954 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2021-12-14 18:16:22,595 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:16:22,598 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:16:22,752 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:16:29,445 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:16:29,464 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:16:29,464 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 18:16:29,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:16:29 BoogieIcfgContainer [2021-12-14 18:16:29,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:16:29,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:16:29,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:16:29,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:16:29,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:16:18" (1/3) ... [2021-12-14 18:16:29,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3636b854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:16:29, skipping insertion in model container [2021-12-14 18:16:29,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:21" (2/3) ... [2021-12-14 18:16:29,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3636b854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:16:29, skipping insertion in model container [2021-12-14 18:16:29,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:16:29" (3/3) ... [2021-12-14 18:16:29,474 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.ko-entry_point.cil.out.i [2021-12-14 18:16:29,478 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:16:29,478 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:16:29,525 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:16:29,538 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 18:16:29,538 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:16:29,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 2605 states, 1756 states have (on average 1.3314350797266514) internal successors, (2338), 1805 states have internal predecessors, (2338), 697 states have call successors, (697), 152 states have call predecessors, (697), 151 states have return successors, (684), 675 states have call predecessors, (684), 684 states have call successors, (684) [2021-12-14 18:16:29,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-14 18:16:29,640 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:16:29,641 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:16:29,642 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:16:29,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:16:29,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1674508748, now seen corresponding path program 1 times [2021-12-14 18:16:29,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:16:29,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847470872] [2021-12-14 18:16:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:16:29,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:16:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:16:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:16:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:16:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:16:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:16:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 18:16:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 18:16:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 18:16:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 18:16:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 18:16:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-14 18:16:30,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:16:30,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847470872] [2021-12-14 18:16:30,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847470872] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:16:30,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:16:30,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:16:30,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836690421] [2021-12-14 18:16:30,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:16:30,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:16:30,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:16:30,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:16:30,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:16:30,485 INFO L87 Difference]: Start difference. First operand has 2605 states, 1756 states have (on average 1.3314350797266514) internal successors, (2338), 1805 states have internal predecessors, (2338), 697 states have call successors, (697), 152 states have call predecessors, (697), 151 states have return successors, (684), 675 states have call predecessors, (684), 684 states have call successors, (684) Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 18:16:34,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:16:37,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:16:37,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:16:37,353 INFO L93 Difference]: Finished difference Result 5477 states and 7944 transitions. [2021-12-14 18:16:37,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 18:16:37,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 159 [2021-12-14 18:16:37,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:16:37,388 INFO L225 Difference]: With dead ends: 5477 [2021-12-14 18:16:37,389 INFO L226 Difference]: Without dead ends: 2848 [2021-12-14 18:16:37,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:16:37,408 INFO L933 BasicCegarLoop]: 3455 mSDtfsCounter, 2511 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 2935 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 4974 SdHoareTripleChecker+Invalid, 4119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2935 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:16:37,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2558 Valid, 4974 Invalid, 4119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2935 Valid, 1183 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-12-14 18:16:37,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2021-12-14 18:16:37,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 2573. [2021-12-14 18:16:37,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 1739 states have (on average 1.3214491086831512) internal successors, (2298), 1772 states have internal predecessors, (2298), 683 states have call successors, (683), 151 states have call predecessors, (683), 150 states have return successors, (682), 673 states have call predecessors, (682), 682 states have call successors, (682) [2021-12-14 18:16:37,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 3663 transitions. [2021-12-14 18:16:37,568 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 3663 transitions. Word has length 159 [2021-12-14 18:16:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:16:37,568 INFO L470 AbstractCegarLoop]: Abstraction has 2573 states and 3663 transitions. [2021-12-14 18:16:37,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 18:16:37,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 3663 transitions. [2021-12-14 18:16:37,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-14 18:16:37,572 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:16:37,573 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:16:37,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:16:37,573 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:16:37,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:16:37,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1384403330, now seen corresponding path program 1 times [2021-12-14 18:16:37,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:16:37,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588728081] [2021-12-14 18:16:37,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:16:37,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:16:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:16:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:16:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:16:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:16:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:16:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 18:16:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 18:16:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 18:16:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 18:16:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-14 18:16:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:37,974 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-14 18:16:37,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:16:37,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588728081] [2021-12-14 18:16:37,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588728081] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:16:37,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:16:37,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:16:37,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787086324] [2021-12-14 18:16:37,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:16:37,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:16:37,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:16:37,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:16:37,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:16:37,977 INFO L87 Difference]: Start difference. First operand 2573 states and 3663 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 18:16:41,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:16:43,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:16:49,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:16:53,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:16:55,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:16:55,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:16:55,058 INFO L93 Difference]: Finished difference Result 7887 states and 11340 transitions. [2021-12-14 18:16:55,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:16:55,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 159 [2021-12-14 18:16:55,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:16:55,084 INFO L225 Difference]: With dead ends: 7887 [2021-12-14 18:16:55,085 INFO L226 Difference]: Without dead ends: 5337 [2021-12-14 18:16:55,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:16:55,094 INFO L933 BasicCegarLoop]: 3927 mSDtfsCounter, 5806 mSDsluCounter, 5679 mSDsCounter, 0 mSdLazyCounter, 4201 mSolverCounterSat, 4060 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6218 SdHoareTripleChecker+Valid, 9606 SdHoareTripleChecker+Invalid, 8264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4060 IncrementalHoareTripleChecker+Valid, 4201 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:16:55,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6218 Valid, 9606 Invalid, 8264 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4060 Valid, 4201 Invalid, 3 Unknown, 0 Unchecked, 16.5s Time] [2021-12-14 18:16:55,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5337 states. [2021-12-14 18:16:55,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5337 to 4794. [2021-12-14 18:16:55,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4794 states, 3237 states have (on average 1.321902996601792) internal successors, (4279), 3304 states have internal predecessors, (4279), 1269 states have call successors, (1269), 288 states have call predecessors, (1269), 287 states have return successors, (1268), 1247 states have call predecessors, (1268), 1268 states have call successors, (1268) [2021-12-14 18:16:55,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4794 states to 4794 states and 6816 transitions. [2021-12-14 18:16:55,267 INFO L78 Accepts]: Start accepts. Automaton has 4794 states and 6816 transitions. Word has length 159 [2021-12-14 18:16:55,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:16:55,269 INFO L470 AbstractCegarLoop]: Abstraction has 4794 states and 6816 transitions. [2021-12-14 18:16:55,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 18:16:55,269 INFO L276 IsEmpty]: Start isEmpty. Operand 4794 states and 6816 transitions. [2021-12-14 18:16:55,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-12-14 18:16:55,277 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:16:55,278 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:16:55,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:16:55,278 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:16:55,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:16:55,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1047828308, now seen corresponding path program 1 times [2021-12-14 18:16:55,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:16:55,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263699180] [2021-12-14 18:16:55,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:16:55,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:16:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:16:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:16:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:16:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:16:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:16:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:16:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 18:16:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 18:16:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 18:16:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 18:16:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 18:16:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 18:16:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 18:16:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:16:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:16:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-14 18:16:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:16:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-14 18:16:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-14 18:16:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-14 18:16:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 18:16:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-14 18:16:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-14 18:16:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-14 18:16:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-14 18:16:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:16:55,793 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2021-12-14 18:16:55,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:16:55,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263699180] [2021-12-14 18:16:55,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263699180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:16:55,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:16:55,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:16:55,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639656489] [2021-12-14 18:16:55,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:16:55,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:16:55,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:16:55,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:16:55,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:16:55,797 INFO L87 Difference]: Start difference. First operand 4794 states and 6816 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-14 18:16:58,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:17:00,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:17:04,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:17:06,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:17:15,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:17:17,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:17:18,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:17:18,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:17:18,402 INFO L93 Difference]: Finished difference Result 15202 states and 21828 transitions. [2021-12-14 18:17:18,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:17:18,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 244 [2021-12-14 18:17:18,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:17:18,457 INFO L225 Difference]: With dead ends: 15202 [2021-12-14 18:17:18,458 INFO L226 Difference]: Without dead ends: 10431 [2021-12-14 18:17:18,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:17:18,484 INFO L933 BasicCegarLoop]: 4155 mSDtfsCounter, 6028 mSDsluCounter, 5588 mSDsCounter, 0 mSdLazyCounter, 4572 mSolverCounterSat, 4136 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6478 SdHoareTripleChecker+Valid, 9743 SdHoareTripleChecker+Invalid, 8713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4136 IncrementalHoareTripleChecker+Valid, 4572 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:17:18,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6478 Valid, 9743 Invalid, 8713 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4136 Valid, 4572 Invalid, 5 Unknown, 0 Unchecked, 22.0s Time] [2021-12-14 18:17:18,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2021-12-14 18:17:18,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 9380. [2021-12-14 18:17:18,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9380 states, 6341 states have (on average 1.3214004100299637) internal successors, (8379), 6471 states have internal predecessors, (8379), 2470 states have call successors, (2470), 569 states have call predecessors, (2470), 568 states have return successors, (2469), 2425 states have call predecessors, (2469), 2469 states have call successors, (2469) [2021-12-14 18:17:18,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9380 states to 9380 states and 13318 transitions. [2021-12-14 18:17:18,856 INFO L78 Accepts]: Start accepts. Automaton has 9380 states and 13318 transitions. Word has length 244 [2021-12-14 18:17:18,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:17:18,856 INFO L470 AbstractCegarLoop]: Abstraction has 9380 states and 13318 transitions. [2021-12-14 18:17:18,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-14 18:17:18,857 INFO L276 IsEmpty]: Start isEmpty. Operand 9380 states and 13318 transitions. [2021-12-14 18:17:18,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-12-14 18:17:18,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:17:18,871 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:17:18,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:17:18,871 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:17:18,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:17:18,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2065086585, now seen corresponding path program 1 times [2021-12-14 18:17:18,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:17:18,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669216109] [2021-12-14 18:17:18,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:17:18,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:17:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:17:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:17:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:17:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:17:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:17:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:17:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:17:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:17:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:17:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:17:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 18:17:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 18:17:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 18:17:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 18:17:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-14 18:17:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:17:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 18:17:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:17:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-14 18:17:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:17:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-14 18:17:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:17:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-14 18:17:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-14 18:17:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:17:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-14 18:17:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-14 18:17:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:17:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:17:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-14 18:17:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-14 18:17:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-14 18:17:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-14 18:17:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-14 18:17:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-14 18:17:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-14 18:17:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-14 18:17:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-12-14 18:17:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-14 18:17:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-12-14 18:17:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:17:19,590 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked. [2021-12-14 18:17:19,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:17:19,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669216109] [2021-12-14 18:17:19,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669216109] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:17:19,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:17:19,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 18:17:19,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757705623] [2021-12-14 18:17:19,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:17:19,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 18:17:19,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:17:19,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 18:17:19,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-14 18:17:19,594 INFO L87 Difference]: Start difference. First operand 9380 states and 13318 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (38), 6 states have call predecessors, (38), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33)