./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.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 2ed7e65f4873f721e135371f2b64bea53a61355f60220cd3c965b9b34f2d17e4 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:47:25,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:47:25,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:47:25,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:47:25,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:47:25,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:47:25,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:47:25,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:47:25,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:47:25,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:47:25,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:47:25,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:47:25,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:47:25,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:47:25,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:47:25,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:47:25,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:47:25,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:47:25,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:47:25,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:47:25,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:47:25,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:47:25,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:47:25,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:47:25,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:47:25,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:47:25,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:47:25,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:47:25,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:47:25,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:47:25,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:47:25,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:47:25,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:47:25,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:47:25,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:47:25,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:47:25,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:47:25,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:47:25,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:47:25,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:47:25,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:47:25,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:47:25,432 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:47:25,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:47:25,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:47:25,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:47:25,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:47:25,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:47:25,435 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:47:25,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:47:25,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:47:25,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:47:25,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:47:25,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:47:25,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:47:25,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:47:25,437 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:47:25,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:47:25,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:47:25,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:47:25,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:47:25,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:47:25,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:47:25,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:47:25,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:47:25,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:47:25,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:47:25,443 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:47:25,443 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:47:25,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:47:25,444 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:47:25,444 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ed7e65f4873f721e135371f2b64bea53a61355f60220cd3c965b9b34f2d17e4 [2021-11-05 20:47:25,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:47:25,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:47:25,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:47:25,737 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:47:25,738 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:47:25,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2021-11-05 20:47:25,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12671eb4/41466ae8c01d453aafc021bb3cb97d0b/FLAG306e51579 [2021-11-05 20:47:26,408 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:47:26,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2021-11-05 20:47:26,449 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12671eb4/41466ae8c01d453aafc021bb3cb97d0b/FLAG306e51579 [2021-11-05 20:47:26,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12671eb4/41466ae8c01d453aafc021bb3cb97d0b [2021-11-05 20:47:26,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:47:26,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:47:26,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:47:26,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:47:26,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:47:26,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:47:26" (1/1) ... [2021-11-05 20:47:26,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129506f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:26, skipping insertion in model container [2021-11-05 20:47:26,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:47:26" (1/1) ... [2021-11-05 20:47:26,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:47:26,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:47:29,916 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464820,464833] [2021-11-05 20:47:29,919 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464989,465002] [2021-11-05 20:47:29,919 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465156,465169] [2021-11-05 20:47:29,922 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465324,465337] [2021-11-05 20:47:29,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:47:29,980 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:47:30,315 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464820,464833] [2021-11-05 20:47:30,324 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464989,465002] [2021-11-05 20:47:30,324 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465156,465169] [2021-11-05 20:47:30,324 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465324,465337] [2021-11-05 20:47:30,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:47:30,601 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:47:30,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:30 WrapperNode [2021-11-05 20:47:30,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:47:30,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:47:30,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:47:30,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:47:30,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:30" (1/1) ... [2021-11-05 20:47:30,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:30" (1/1) ... [2021-11-05 20:47:42,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:47:42,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:47:42,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:47:42,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:47:42,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:30" (1/1) ... [2021-11-05 20:47:42,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:30" (1/1) ... [2021-11-05 20:47:44,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:30" (1/1) ... [2021-11-05 20:47:44,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:30" (1/1) ... [2021-11-05 20:47:46,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:30" (1/1) ... [2021-11-05 20:47:47,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:30" (1/1) ... [2021-11-05 20:47:48,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:30" (1/1) ... [2021-11-05 20:47:49,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:47:49,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:47:49,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:47:49,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:47:49,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:30" (1/1) ... [2021-11-05 20:47:49,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:47:49,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:47:49,411 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) [2021-11-05 20:47:49,430 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 [2021-11-05 20:47:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-05 20:47:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:47:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-05 20:47:49,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:47:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:47:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:47:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:47:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:47:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:47:49,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:47:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:47:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:47:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:47:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:47:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:47:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:47:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:49:29,232 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 20:49:29,233 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-05 20:49:29,233 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-05 20:49:29,234 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-05 20:49:29,234 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:49:29,234 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 20:49:29,237 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:49:29,237 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-05 20:49:29,238 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:49:29,238 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 20:49:29,238 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:49:29,238 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:49:29,254 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-05 20:49:29,357 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:49:29,357 INFO L299 CfgBuilder]: Removed 83122 assume(true) statements. [2021-11-05 20:49:29,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:49:29 BoogieIcfgContainer [2021-11-05 20:49:29,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:49:29,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:49:29,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:49:29,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:49:29,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:47:26" (1/3) ... [2021-11-05 20:49:29,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6153aecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:49:29, skipping insertion in model container [2021-11-05 20:49:29,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:47:30" (2/3) ... [2021-11-05 20:49:29,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6153aecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:49:29, skipping insertion in model container [2021-11-05 20:49:29,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:49:29" (3/3) ... [2021-11-05 20:49:29,404 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2021-11-05 20:49:29,408 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:49:29,408 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 209 error locations. [2021-11-05 20:49:29,545 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:49:29,549 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 [2021-11-05 20:49:29,549 INFO L340 AbstractCegarLoop]: Starting to check reachability of 209 error locations. [2021-11-05 20:49:30,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 51912 states, 51703 states have (on average 1.212018644952904) internal successors, (62665), 51911 states have internal predecessors, (62665), 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) [2021-11-05 20:49:30,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-05 20:49:30,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:49:30,186 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] [2021-11-05 20:49:30,186 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 206 more)] === [2021-11-05 20:49:30,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:49:30,199 INFO L85 PathProgramCache]: Analyzing trace with hash -175559766, now seen corresponding path program 1 times [2021-11-05 20:49:30,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:49:30,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620657330] [2021-11-05 20:49:30,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:49:30,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:49:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:49:30,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:49:30,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:49:30,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620657330] [2021-11-05 20:49:30,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620657330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:49:30,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:49:30,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:49:30,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526972940] [2021-11-05 20:49:30,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:49:30,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:49:30,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:49:30,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:49:30,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:30,676 INFO L87 Difference]: Start difference. First operand has 51912 states, 51703 states have (on average 1.212018644952904) internal successors, (62665), 51911 states have internal predecessors, (62665), 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) Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-05 20:49:32,567 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:49:35,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:49:35,258 INFO L93 Difference]: Finished difference Result 154546 states and 186446 transitions. [2021-11-05 20:49:35,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:49:35,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2021-11-05 20:49:35,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:49:35,594 INFO L225 Difference]: With dead ends: 154546 [2021-11-05 20:49:35,594 INFO L226 Difference]: Without dead ends: 102166 [2021-11-05 20:49:35,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.28ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:35,727 INFO L933 BasicCegarLoop]: 61821 mSDtfsCounter, 61326 mSDsluCounter, 61773 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1904.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 61326 SdHoareTripleChecker+Valid, 123594 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 192.20ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2007.04ms IncrementalHoareTripleChecker+Time [2021-11-05 20:49:35,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61326 Valid, 123594 Invalid, 34 Unknown, 0 Unchecked, 192.20ms Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 2007.04ms Time] [2021-11-05 20:49:35,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102166 states. [2021-11-05 20:49:38,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102166 to 101850. [2021-11-05 20:49:38,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101850 states, 101641 states have (on average 1.1969874361724107) internal successors, (121663), 101849 states have internal predecessors, (121663), 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) [2021-11-05 20:49:38,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101850 states to 101850 states and 121663 transitions. [2021-11-05 20:49:38,438 INFO L78 Accepts]: Start accepts. Automaton has 101850 states and 121663 transitions. Word has length 72 [2021-11-05 20:49:38,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:49:38,438 INFO L470 AbstractCegarLoop]: Abstraction has 101850 states and 121663 transitions. [2021-11-05 20:49:38,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-05 20:49:38,439 INFO L276 IsEmpty]: Start isEmpty. Operand 101850 states and 121663 transitions. [2021-11-05 20:49:38,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-05 20:49:38,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:49:38,442 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] [2021-11-05 20:49:38,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:49:38,443 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr93ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 206 more)] === [2021-11-05 20:49:38,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:49:38,443 INFO L85 PathProgramCache]: Analyzing trace with hash -127627591, now seen corresponding path program 1 times [2021-11-05 20:49:38,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:49:38,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141374889] [2021-11-05 20:49:38,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:49:38,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:49:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:49:38,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:49:38,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:49:38,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141374889] [2021-11-05 20:49:38,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141374889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:49:38,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:49:38,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:49:38,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905656096] [2021-11-05 20:49:38,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:49:38,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:49:38,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:49:38,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:49:38,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:38,612 INFO L87 Difference]: Start difference. First operand 101850 states and 121663 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-05 20:49:40,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:49:43,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:49:43,225 INFO L93 Difference]: Finished difference Result 227456 states and 271831 transitions. [2021-11-05 20:49:43,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:49:43,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2021-11-05 20:49:43,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:49:43,502 INFO L225 Difference]: With dead ends: 227456 [2021-11-05 20:49:43,502 INFO L226 Difference]: Without dead ends: 125754 [2021-11-05 20:49:43,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:43,687 INFO L933 BasicCegarLoop]: 61093 mSDtfsCounter, 14452 mSDsluCounter, 61029 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2125.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14452 SdHoareTripleChecker+Valid, 122122 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 73.41ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2246.46ms IncrementalHoareTripleChecker+Time [2021-11-05 20:49:43,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14452 Valid, 122122 Invalid, 153 Unknown, 0 Unchecked, 73.41ms Time], IncrementalHoareTripleChecker [31 Valid, 121 Invalid, 1 Unknown, 0 Unchecked, 2246.46ms Time] [2021-11-05 20:49:43,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125754 states. [2021-11-05 20:49:46,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125754 to 125420. [2021-11-05 20:49:46,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125420 states, 125211 states have (on average 1.197953853894626) internal successors, (149997), 125419 states have internal predecessors, (149997), 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) [2021-11-05 20:49:46,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125420 states to 125420 states and 149997 transitions. [2021-11-05 20:49:46,514 INFO L78 Accepts]: Start accepts. Automaton has 125420 states and 149997 transitions. Word has length 78 [2021-11-05 20:49:46,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:49:46,514 INFO L470 AbstractCegarLoop]: Abstraction has 125420 states and 149997 transitions. [2021-11-05 20:49:46,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-05 20:49:46,515 INFO L276 IsEmpty]: Start isEmpty. Operand 125420 states and 149997 transitions. [2021-11-05 20:49:46,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-05 20:49:46,517 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:49:46,517 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] [2021-11-05 20:49:46,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:49:46,517 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 206 more)] === [2021-11-05 20:49:46,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:49:46,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1742447139, now seen corresponding path program 1 times [2021-11-05 20:49:46,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:49:46,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670452988] [2021-11-05 20:49:46,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:49:46,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:49:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:49:46,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:49:46,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:49:46,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670452988] [2021-11-05 20:49:46,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670452988] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:49:46,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:49:46,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:49:46,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451125792] [2021-11-05 20:49:46,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:49:46,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:49:46,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:49:46,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:49:46,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:46,643 INFO L87 Difference]: Start difference. First operand 125420 states and 149997 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-05 20:49:48,363 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:49:52,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:49:52,731 INFO L93 Difference]: Finished difference Result 371058 states and 443497 transitions. [2021-11-05 20:49:52,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:49:52,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2021-11-05 20:49:52,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:49:53,360 INFO L225 Difference]: With dead ends: 371058 [2021-11-05 20:49:53,360 INFO L226 Difference]: Without dead ends: 245786 [2021-11-05 20:49:53,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.80ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:49:53,611 INFO L933 BasicCegarLoop]: 61114 mSDtfsCounter, 59390 mSDsluCounter, 61009 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1814.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 59390 SdHoareTripleChecker+Valid, 122123 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 96.92ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1941.38ms IncrementalHoareTripleChecker+Time [2021-11-05 20:49:53,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59390 Valid, 122123 Invalid, 119 Unknown, 0 Unchecked, 96.92ms Time], IncrementalHoareTripleChecker [9 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 1941.38ms Time] [2021-11-05 20:49:53,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245786 states.