./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8946ad2f029076f7c4f90de60a8c48e069f80fec06a0c6d7a5dc3a1fc4182879 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:10:50,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:10:50,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:10:50,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:10:50,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:10:50,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:10:50,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:10:50,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:10:50,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:10:50,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:10:50,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:10:50,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:10:50,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:10:50,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:10:50,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:10:50,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:10:50,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:10:50,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:10:50,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:10:50,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:10:50,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:10:50,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:10:50,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:10:50,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:10:50,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:10:50,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:10:50,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:10:50,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:10:50,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:10:50,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:10:50,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:10:50,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:10:50,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:10:50,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:10:50,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:10:50,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:10:50,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:10:50,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:10:50,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:10:50,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:10:50,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:10:50,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-15 13:10:50,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:10:50,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:10:50,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:10:50,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:10:50,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:10:50,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:10:50,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:10:50,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:10:50,443 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:10:50,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:10:50,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 13:10:50,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:10:50,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 13:10:50,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:10:50,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 13:10:50,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 13:10:50,445 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:10:50,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 13:10:50,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:10:50,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:10:50,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:10:50,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:10:50,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:10:50,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:10:50,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 13:10:50,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 13:10:50,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 13:10:50,447 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 13:10:50,447 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 13:10:50,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 13:10:50,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:10:50,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8946ad2f029076f7c4f90de60a8c48e069f80fec06a0c6d7a5dc3a1fc4182879 [2021-12-15 13:10:50,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:10:50,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:10:50,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:10:50,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:10:50,691 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:10:50,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-15 13:10:50,750 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a850723b/1afefc99d6fa443db25a00284a8ba0af/FLAGfbfa7623f [2021-12-15 13:10:51,426 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:10:51,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-15 13:10:51,454 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a850723b/1afefc99d6fa443db25a00284a8ba0af/FLAGfbfa7623f [2021-12-15 13:10:51,638 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a850723b/1afefc99d6fa443db25a00284a8ba0af [2021-12-15 13:10:51,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:10:51,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:10:51,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:10:51,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:10:51,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:10:51,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:10:51" (1/1) ... [2021-12-15 13:10:51,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434613e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:51, skipping insertion in model container [2021-12-15 13:10:51,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:10:51" (1/1) ... [2021-12-15 13:10:51,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:10:51,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:10:52,437 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-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i[121503,121516] [2021-12-15 13:10:52,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:10:52,478 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:10:52,621 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-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i[121503,121516] [2021-12-15 13:10:52,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:10:52,667 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:10:52,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:52 WrapperNode [2021-12-15 13:10:52,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:10:52,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:10:52,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:10:52,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:10:52,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:52" (1/1) ... [2021-12-15 13:10:52,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:52" (1/1) ... [2021-12-15 13:10:52,797 INFO L137 Inliner]: procedures = 142, calls = 521, calls flagged for inlining = 83, calls inlined = 83, statements flattened = 1657 [2021-12-15 13:10:52,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:10:52,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:10:52,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:10:52,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:10:52,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:52" (1/1) ... [2021-12-15 13:10:52,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:52" (1/1) ... [2021-12-15 13:10:52,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:52" (1/1) ... [2021-12-15 13:10:52,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:52" (1/1) ... [2021-12-15 13:10:52,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:52" (1/1) ... [2021-12-15 13:10:52,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:52" (1/1) ... [2021-12-15 13:10:52,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:52" (1/1) ... [2021-12-15 13:10:52,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:10:52,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:10:52,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:10:52,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:10:52,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:52" (1/1) ... [2021-12-15 13:10:52,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:10:52,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:10:52,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 13:10:52,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 13:10:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2021-12-15 13:10:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2021-12-15 13:10:52,998 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2021-12-15 13:10:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2021-12-15 13:10:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-15 13:10:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-15 13:10:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 13:10:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-15 13:10:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-15 13:10:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2021-12-15 13:10:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2021-12-15 13:10:52,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-12-15 13:10:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-12-15 13:10:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 13:10:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 13:10:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2021-12-15 13:10:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2021-12-15 13:10:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2021-12-15 13:10:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2021-12-15 13:10:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-15 13:10:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-15 13:10:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 13:10:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-15 13:10:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-15 13:10:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-15 13:10:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-15 13:10:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2021-12-15 13:10:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2021-12-15 13:10:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-15 13:10:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-15 13:10:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 13:10:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 13:10:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:10:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-15 13:10:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-15 13:10:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-15 13:10:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-15 13:10:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:10:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2021-12-15 13:10:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2021-12-15 13:10:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 13:10:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:10:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 13:10:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 13:10:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2021-12-15 13:10:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2021-12-15 13:10:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2021-12-15 13:10:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2021-12-15 13:10:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:10:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-15 13:10:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-15 13:10:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-15 13:10:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-15 13:10:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 13:10:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 13:10:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-12-15 13:10:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-12-15 13:10:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2021-12-15 13:10:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2021-12-15 13:10:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 13:10:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:10:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:10:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-15 13:10:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-15 13:10:53,332 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:10:53,334 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:10:53,377 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 13:10:53,384 INFO L158 Benchmark]: Toolchain (without parser) took 1741.33ms. Allocated memory was 92.3MB in the beginning and 213.9MB in the end (delta: 121.6MB). Free memory was 56.8MB in the beginning and 166.7MB in the end (delta: -110.0MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2021-12-15 13:10:53,384 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 45.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:10:53,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1039.93ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 56.6MB in the beginning and 94.3MB in the end (delta: -37.7MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2021-12-15 13:10:53,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.31ms. Allocated memory is still 132.1MB. Free memory was 94.3MB in the beginning and 83.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 13:10:53,390 INFO L158 Benchmark]: Boogie Preprocessor took 115.80ms. Allocated memory is still 132.1MB. Free memory was 83.2MB in the beginning and 73.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 13:10:53,391 INFO L158 Benchmark]: RCFGBuilder took 467.40ms. Allocated memory was 132.1MB in the beginning and 213.9MB in the end (delta: 81.8MB). Free memory was 73.2MB in the beginning and 166.7MB in the end (delta: -93.5MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2021-12-15 13:10:53,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 45.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1039.93ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 56.6MB in the beginning and 94.3MB in the end (delta: -37.7MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.31ms. Allocated memory is still 132.1MB. Free memory was 94.3MB in the beginning and 83.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 115.80ms. Allocated memory is still 132.1MB. Free memory was 83.2MB in the beginning and 73.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 467.40ms. Allocated memory was 132.1MB in the beginning and 213.9MB in the end (delta: 81.8MB). Free memory was 73.2MB in the beginning and 166.7MB in the end (delta: -93.5MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 13:10:53,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 8946ad2f029076f7c4f90de60a8c48e069f80fec06a0c6d7a5dc3a1fc4182879 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:10:55,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:10:55,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:10:55,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:10:55,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:10:55,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:10:55,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:10:55,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:10:55,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:10:55,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:10:55,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:10:55,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:10:55,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:10:55,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:10:55,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:10:55,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:10:55,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:10:55,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:10:55,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:10:55,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:10:55,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:10:55,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:10:55,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:10:55,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:10:55,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:10:55,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:10:55,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:10:55,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:10:55,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:10:55,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:10:55,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:10:55,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:10:55,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:10:55,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:10:55,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:10:55,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:10:55,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:10:55,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:10:55,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:10:55,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:10:55,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:10:55,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-15 13:10:55,260 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:10:55,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:10:55,262 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:10:55,262 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:10:55,263 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:10:55,263 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:10:55,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:10:55,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:10:55,264 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:10:55,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:10:55,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:10:55,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 13:10:55,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:10:55,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 13:10:55,266 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 13:10:55,266 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 13:10:55,266 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 13:10:55,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 13:10:55,266 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:10:55,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 13:10:55,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:10:55,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:10:55,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:10:55,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:10:55,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:10:55,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:10:55,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 13:10:55,268 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 13:10:55,268 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 13:10:55,268 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 13:10:55,268 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 13:10:55,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 13:10:55,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:10:55,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 13:10:55,269 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8946ad2f029076f7c4f90de60a8c48e069f80fec06a0c6d7a5dc3a1fc4182879 [2021-12-15 13:10:55,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:10:55,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:10:55,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:10:55,603 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:10:55,603 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:10:55,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-15 13:10:55,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dd34bdb8/594faa83cff049c491e84af2a7575306/FLAG4de379ecc [2021-12-15 13:10:56,208 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:10:56,209 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-15 13:10:56,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dd34bdb8/594faa83cff049c491e84af2a7575306/FLAG4de379ecc [2021-12-15 13:10:56,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dd34bdb8/594faa83cff049c491e84af2a7575306 [2021-12-15 13:10:56,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:10:56,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:10:56,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:10:56,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:10:56,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:10:56,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:10:56" (1/1) ... [2021-12-15 13:10:56,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb5dd2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:56, skipping insertion in model container [2021-12-15 13:10:56,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:10:56" (1/1) ... [2021-12-15 13:10:56,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:10:56,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:10:57,159 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-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i[121503,121516] [2021-12-15 13:10:57,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:10:57,208 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 13:10:57,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:10:57,357 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-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i[121503,121516] [2021-12-15 13:10:57,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:10:57,377 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:10:57,537 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-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i[121503,121516] [2021-12-15 13:10:57,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:10:57,587 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:10:57,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:57 WrapperNode [2021-12-15 13:10:57,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:10:57,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:10:57,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:10:57,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:10:57,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:57" (1/1) ... [2021-12-15 13:10:57,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:57" (1/1) ... [2021-12-15 13:10:57,696 INFO L137 Inliner]: procedures = 149, calls = 521, calls flagged for inlining = 83, calls inlined = 83, statements flattened = 1605 [2021-12-15 13:10:57,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:10:57,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:10:57,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:10:57,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:10:57,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:57" (1/1) ... [2021-12-15 13:10:57,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:57" (1/1) ... [2021-12-15 13:10:57,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:57" (1/1) ... [2021-12-15 13:10:57,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:57" (1/1) ... [2021-12-15 13:10:57,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:57" (1/1) ... [2021-12-15 13:10:57,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:57" (1/1) ... [2021-12-15 13:10:57,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:57" (1/1) ... [2021-12-15 13:10:57,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:10:57,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:10:57,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:10:57,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:10:57,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:10:57" (1/1) ... [2021-12-15 13:10:57,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:10:57,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:10:57,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 13:10:57,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 13:10:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2021-12-15 13:10:57,873 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2021-12-15 13:10:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 13:10:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 13:10:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 13:10:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2021-12-15 13:10:57,873 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2021-12-15 13:10:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-15 13:10:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-15 13:10:57,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-15 13:10:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-15 13:10:57,873 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-15 13:10:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2021-12-15 13:10:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2021-12-15 13:10:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2021-12-15 13:10:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2021-12-15 13:10:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 13:10:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 13:10:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2021-12-15 13:10:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2021-12-15 13:10:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2021-12-15 13:10:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2021-12-15 13:10:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-15 13:10:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-15 13:10:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-15 13:10:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-15 13:10:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-15 13:10:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-15 13:10:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2021-12-15 13:10:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2021-12-15 13:10:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-15 13:10:57,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-15 13:10:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 13:10:57,875 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 13:10:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:10:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-15 13:10:57,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-15 13:10:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-15 13:10:57,875 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-15 13:10:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:10:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2021-12-15 13:10:57,875 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2021-12-15 13:10:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 13:10:57,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:10:57,903 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 13:10:57,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 13:10:57,904 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2021-12-15 13:10:57,904 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2021-12-15 13:10:57,904 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2021-12-15 13:10:57,905 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2021-12-15 13:10:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:10:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-15 13:10:57,906 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-15 13:10:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-15 13:10:57,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-15 13:10:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 13:10:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-15 13:10:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-15 13:10:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 13:10:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 13:10:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 13:10:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 13:10:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 13:10:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-12-15 13:10:57,909 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-12-15 13:10:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2021-12-15 13:10:57,909 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2021-12-15 13:10:57,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:10:57,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:10:57,911 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-15 13:10:57,911 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-15 13:10:58,251 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:10:58,254 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:10:58,265 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 13:10:58,270 INFO L158 Benchmark]: Toolchain (without parser) took 1841.19ms. Allocated memory was 60.8MB in the beginning and 113.2MB in the end (delta: 52.4MB). Free memory was 34.4MB in the beginning and 51.7MB in the end (delta: -17.3MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2021-12-15 13:10:58,270 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 60.8MB. Free memory was 42.4MB in the beginning and 42.4MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:10:58,271 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1157.98ms. Allocated memory was 60.8MB in the beginning and 113.2MB in the end (delta: 52.4MB). Free memory was 34.2MB in the beginning and 70.2MB in the end (delta: -36.1MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2021-12-15 13:10:58,271 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.44ms. Allocated memory is still 113.2MB. Free memory was 69.7MB in the beginning and 59.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 13:10:58,273 INFO L158 Benchmark]: Boogie Preprocessor took 92.08ms. Allocated memory is still 113.2MB. Free memory was 59.8MB in the beginning and 49.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 13:10:58,273 INFO L158 Benchmark]: RCFGBuilder took 478.96ms. Allocated memory is still 113.2MB. Free memory was 49.2MB in the beginning and 51.7MB in the end (delta: -2.5MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-12-15 13:10:58,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 60.8MB. Free memory was 42.4MB in the beginning and 42.4MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1157.98ms. Allocated memory was 60.8MB in the beginning and 113.2MB in the end (delta: 52.4MB). Free memory was 34.2MB in the beginning and 70.2MB in the end (delta: -36.1MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.44ms. Allocated memory is still 113.2MB. Free memory was 69.7MB in the beginning and 59.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.08ms. Allocated memory is still 113.2MB. Free memory was 59.8MB in the beginning and 49.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 478.96ms. Allocated memory is still 113.2MB. Free memory was 49.2MB in the beginning and 51.7MB in the end (delta: -2.5MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 13:10:58,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable