./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f1645f8e98839bce4f434db74cc261d1b9600d4122c558a314d01e8a1c883744 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 04:02:44,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 04:02:44,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 04:02:44,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 04:02:44,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 04:02:44,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 04:02:44,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 04:02:44,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 04:02:44,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 04:02:44,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 04:02:44,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 04:02:44,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 04:02:44,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 04:02:44,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 04:02:44,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 04:02:44,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 04:02:44,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 04:02:44,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 04:02:44,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 04:02:44,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 04:02:44,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 04:02:44,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 04:02:44,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 04:02:44,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 04:02:44,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 04:02:44,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 04:02:44,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 04:02:44,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 04:02:44,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 04:02:44,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 04:02:44,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 04:02:44,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 04:02:44,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 04:02:44,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 04:02:44,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 04:02:44,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 04:02:44,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 04:02:44,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 04:02:44,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 04:02:44,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 04:02:44,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 04:02:44,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 04:02:44,465 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 04:02:44,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 04:02:44,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 04:02:44,467 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 04:02:44,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 04:02:44,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 04:02:44,469 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 04:02:44,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 04:02:44,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 04:02:44,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 04:02:44,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 04:02:44,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 04:02:44,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 04:02:44,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 04:02:44,471 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 04:02:44,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 04:02:44,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 04:02:44,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 04:02:44,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 04:02:44,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:02:44,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 04:02:44,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 04:02:44,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 04:02:44,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 04:02:44,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 04:02:44,474 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 04:02:44,474 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 04:02:44,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 04:02:44,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 04:02:44,474 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1645f8e98839bce4f434db74cc261d1b9600d4122c558a314d01e8a1c883744 [2021-11-23 04:02:44,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 04:02:44,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 04:02:44,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 04:02:44,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 04:02:44,744 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 04:02:44,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-23 04:02:44,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4492704/b883ededd4714df6bc1391ceef3b60f0/FLAGbe7f169df [2021-11-23 04:02:45,809 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 04:02:45,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-23 04:02:45,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4492704/b883ededd4714df6bc1391ceef3b60f0/FLAGbe7f169df [2021-11-23 04:02:46,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4492704/b883ededd4714df6bc1391ceef3b60f0 [2021-11-23 04:02:46,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 04:02:46,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 04:02:46,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 04:02:46,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 04:02:46,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 04:02:46,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:46" (1/1) ... [2021-11-23 04:02:46,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef7f3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:46, skipping insertion in model container [2021-11-23 04:02:46,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:46" (1/1) ... [2021-11-23 04:02:46,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 04:02:46,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 04:02:55,994 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[866011,866024] [2021-11-23 04:02:55,996 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[866180,866193] [2021-11-23 04:02:55,997 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[866347,866360] [2021-11-23 04:02:55,997 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[866515,866528] [2021-11-23 04:02:56,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:02:56,113 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 04:02:56,913 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[866011,866024] [2021-11-23 04:02:56,915 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[866180,866193] [2021-11-23 04:02:56,915 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[866347,866360] [2021-11-23 04:02:56,916 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[866515,866528] [2021-11-23 04:02:56,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:02:57,360 INFO L208 MainTranslator]: Completed translation [2021-11-23 04:02:57,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:57 WrapperNode [2021-11-23 04:02:57,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 04:02:57,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 04:02:57,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 04:02:57,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 04:02:57,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:57" (1/1) ... [2021-11-23 04:02:57,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:57" (1/1) ... [2021-11-23 04:03:00,876 INFO L137 Inliner]: procedures = 839, calls = 7821, calls flagged for inlining = 2015, calls inlined = 13590, statements flattened = 156907 [2021-11-23 04:03:00,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 04:03:00,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 04:03:00,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 04:03:00,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 04:03:00,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:57" (1/1) ... [2021-11-23 04:03:00,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:57" (1/1) ... [2021-11-23 04:03:01,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:57" (1/1) ... [2021-11-23 04:03:01,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:57" (1/1) ... [2021-11-23 04:03:03,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:57" (1/1) ... [2021-11-23 04:03:04,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:57" (1/1) ... [2021-11-23 04:03:04,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:57" (1/1) ... [2021-11-23 04:03:05,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 04:03:05,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 04:03:05,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 04:03:05,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 04:03:05,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:57" (1/1) ... [2021-11-23 04:03:05,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:03:05,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:03:05,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 04:03:05,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 04:03:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_close [2021-11-23 04:03:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_close [2021-11-23 04:03:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_sw_reset [2021-11-23 04:03:05,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_sw_reset [2021-11-23 04:03:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_device_register [2021-11-23 04:03:05,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_device_register [2021-11-23 04:03:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_13_6 [2021-11-23 04:03:05,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_13_6 [2021-11-23 04:03:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_probe [2021-11-23 04:03:05,474 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_probe [2021-11-23 04:03:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 04:03:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_reset_all_vpaths [2021-11-23 04:03:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_reset_all_vpaths [2021-11-23 04:03:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_89 [2021-11-23 04:03:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_89 [2021-11-23 04:03:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 04:03:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-23 04:03:05,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-23 04:03:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 04:03:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 04:03:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 04:03:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 04:03:05,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 04:03:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_ring_create [2021-11-23 04:03:05,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_ring_create [2021-11-23 04:03:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 04:03:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 04:03:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 04:03:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 04:03:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_open [2021-11-23 04:03:05,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_open [2021-11-23 04:03:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_ring_replenish [2021-11-23 04:03:05,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_ring_replenish [2021-11-23 04:03:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 04:03:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_recover_from_reset [2021-11-23 04:03:05,478 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_recover_from_reset [2021-11-23 04:03:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_open [2021-11-23 04:03:05,479 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_open [2021-11-23 04:03:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_stop_18_2 [2021-11-23 04:03:05,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_stop_18_2 [2021-11-23 04:03:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_91 [2021-11-23 04:03:05,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_91 [2021-11-23 04:03:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_open_vpaths [2021-11-23 04:03:05,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_open_vpaths [2021-11-23 04:03:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_device_unregister [2021-11-23 04:03:05,480 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_device_unregister [2021-11-23 04:03:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 04:03:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 04:03:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-23 04:03:05,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-23 04:03:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 04:03:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 04:03:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure do_vxge_close [2021-11-23 04:03:05,481 INFO L138 BoogieDeclarations]: Found implementation of procedure do_vxge_close [2021-11-23 04:03:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 04:03:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_ring_reset [2021-11-23 04:03:05,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_ring_reset [2021-11-23 04:03:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 04:03:05,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 04:03:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 04:03:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 04:03:08,475 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 04:03:08,477 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 04:09:07,449 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 04:09:07,450 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res#1 := 0; [2021-11-23 04:09:07,450 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 04:09:07,450 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 04:09:07,451 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 04:09:07,451 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 04:09:07,454 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 04:09:19,529 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 04:09:19,615 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 04:09:19,616 INFO L301 CfgBuilder]: Removed 252 assume(true) statements. [2021-11-23 04:09:19,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:09:19 BoogieIcfgContainer [2021-11-23 04:09:19,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 04:09:19,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 04:09:19,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 04:09:19,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 04:09:19,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:02:46" (1/3) ... [2021-11-23 04:09:19,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c968b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:09:19, skipping insertion in model container [2021-11-23 04:09:19,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:57" (2/3) ... [2021-11-23 04:09:19,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c968b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:09:19, skipping insertion in model container [2021-11-23 04:09:19,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:09:19" (3/3) ... [2021-11-23 04:09:19,649 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-23 04:09:19,653 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 04:09:19,653 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 329 error locations. [2021-11-23 04:09:19,779 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 04:09:19,786 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 04:09:19,788 INFO L340 AbstractCegarLoop]: Starting to check reachability of 329 error locations. [2021-11-23 04:09:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 29448 states, 29044 states have (on average 1.3274342377083046) internal successors, (38554), 29372 states have internal predecessors, (38554), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2021-11-23 04:09:20,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 04:09:20,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:09:20,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:09:20,239 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [vxge_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 326 more)] === [2021-11-23 04:09:20,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:09:20,252 INFO L85 PathProgramCache]: Analyzing trace with hash -2061381087, now seen corresponding path program 1 times [2021-11-23 04:09:20,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:09:20,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655973253] [2021-11-23 04:09:20,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:09:20,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:09:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:09:21,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:09:21,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:09:21,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655973253] [2021-11-23 04:09:21,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655973253] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:09:21,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:09:21,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:09:21,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660106738] [2021-11-23 04:09:21,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:09:21,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:09:21,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:09:21,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:09:21,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:09:21,601 INFO L87 Difference]: Start difference. First operand has 29448 states, 29044 states have (on average 1.3274342377083046) internal successors, (38554), 29372 states have internal predecessors, (38554), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:09:23,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:09:26,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:09:26,505 INFO L93 Difference]: Finished difference Result 85649 states and 112579 transitions. [2021-11-23 04:09:26,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:09:26,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-23 04:09:26,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:09:26,962 INFO L225 Difference]: With dead ends: 85649 [2021-11-23 04:09:26,962 INFO L226 Difference]: Without dead ends: 55110 [2021-11-23 04:09:27,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:09:27,142 INFO L933 BasicCegarLoop]: 36599 mSDtfsCounter, 36034 mSDsluCounter, 36434 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36034 SdHoareTripleChecker+Valid, 73033 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-23 04:09:27,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36034 Valid, 73033 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2021-11-23 04:09:27,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55110 states. [2021-11-23 04:09:28,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55110 to 54542. [2021-11-23 04:09:28,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54542 states, 54063 states have (on average 1.2849268446072175) internal successors, (69467), 54391 states have internal predecessors, (69467), 108 states have call successors, (108), 42 states have call predecessors, (108), 42 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2021-11-23 04:09:29,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54542 states to 54542 states and 69683 transitions. [2021-11-23 04:09:29,208 INFO L78 Accepts]: Start accepts. Automaton has 54542 states and 69683 transitions. Word has length 77 [2021-11-23 04:09:29,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:09:29,210 INFO L470 AbstractCegarLoop]: Abstraction has 54542 states and 69683 transitions. [2021-11-23 04:09:29,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:09:29,213 INFO L276 IsEmpty]: Start isEmpty. Operand 54542 states and 69683 transitions. [2021-11-23 04:09:29,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 04:09:29,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:09:29,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:09:29,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 04:09:29,219 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr139ASSERT_VIOLATIONERROR_FUNCTION === [vxge_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 326 more)] === [2021-11-23 04:09:29,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:09:29,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2128894722, now seen corresponding path program 1 times [2021-11-23 04:09:29,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:09:29,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886377401] [2021-11-23 04:09:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:09:29,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:09:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:09:30,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:09:30,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:09:30,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886377401] [2021-11-23 04:09:30,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886377401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:09:30,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:09:30,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:09:30,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042803952] [2021-11-23 04:09:30,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:09:30,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:09:30,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:09:30,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:09:30,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:09:30,092 INFO L87 Difference]: Start difference. First operand 54542 states and 69683 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:09:32,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 04:09:36,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:09:36,590 INFO L93 Difference]: Finished difference Result 155930 states and 199255 transitions. [2021-11-23 04:09:36,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:09:36,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-23 04:09:36,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:09:37,099 INFO L225 Difference]: With dead ends: 155930 [2021-11-23 04:09:37,099 INFO L226 Difference]: Without dead ends: 101545 [2021-11-23 04:09:37,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:09:37,281 INFO L933 BasicCegarLoop]: 35335 mSDtfsCounter, 30548 mSDsluCounter, 34871 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30548 SdHoareTripleChecker+Valid, 70206 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-23 04:09:37,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30548 Valid, 70206 Invalid, 111 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 103 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-23 04:09:37,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101545 states. [2021-11-23 04:09:40,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101545 to 100815. [2021-11-23 04:09:40,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100815 states, 100198 states have (on average 1.2839078624323839) internal successors, (128645), 100540 states have internal predecessors, (128645), 212 states have call successors, (212), 84 states have call predecessors, (212), 76 states have return successors, (384), 190 states have call predecessors, (384), 212 states have call successors, (384) [2021-11-23 04:09:40,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100815 states to 100815 states and 129241 transitions. [2021-11-23 04:09:40,994 INFO L78 Accepts]: Start accepts. Automaton has 100815 states and 129241 transitions. Word has length 84 [2021-11-23 04:09:40,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:09:40,995 INFO L470 AbstractCegarLoop]: Abstraction has 100815 states and 129241 transitions. [2021-11-23 04:09:40,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:09:40,995 INFO L276 IsEmpty]: Start isEmpty. Operand 100815 states and 129241 transitions. [2021-11-23 04:09:40,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-23 04:09:40,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:09:40,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:09:40,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 04:09:40,998 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr137ASSERT_VIOLATIONERROR_FUNCTION === [vxge_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 326 more)] === [2021-11-23 04:09:40,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:09:40,999 INFO L85 PathProgramCache]: Analyzing trace with hash 405900797, now seen corresponding path program 1 times [2021-11-23 04:09:40,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:09:41,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265780715] [2021-11-23 04:09:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:09:41,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:09:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:09:42,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:09:42,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:09:42,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265780715] [2021-11-23 04:09:42,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265780715] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:09:42,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:09:42,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:09:42,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41712946] [2021-11-23 04:09:42,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:09:42,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:09:42,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:09:42,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:09:42,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:09:42,074 INFO L87 Difference]: Start difference. First operand 100815 states and 129241 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:09:44,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []