./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.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 e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:03:53,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:03:53,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:03:53,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:03:53,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:03:53,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:03:53,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:03:53,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:03:53,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:03:53,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:03:53,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:03:53,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:03:53,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:03:53,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:03:53,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:03:53,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:03:53,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:03:53,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:03:53,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:03:53,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:03:53,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:03:53,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:03:53,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:03:53,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:03:53,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:03:53,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:03:53,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:03:53,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:03:53,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:03:53,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:03:53,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:03:53,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:03:53,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:03:53,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:03:53,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:03:53,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:03:53,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:03:53,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:03:53,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:03:53,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:03:53,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:03:53,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-15 13:03:53,891 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:03:53,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:03:53,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:03:53,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:03:53,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:03:53,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:03:53,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:03:53,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:03:53,894 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:03:53,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:03:53,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 13:03:53,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:03:53,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 13:03:53,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:03:53,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 13:03:53,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 13:03:53,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:03:53,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 13:03:53,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:03:53,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:03:53,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:03:53,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:03:53,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:03:53,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:03:53,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 13:03:53,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 13:03:53,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 13:03:53,898 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 13:03:53,898 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 13:03:53,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 13:03:53,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:03:53,899 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 [2021-12-15 13:03:54,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:03:54,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:03:54,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:03:54,166 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:03:54,166 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:03:54,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2021-12-15 13:03:54,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1191e044/425fde9f75d94392b13cdbc81922e35b/FLAGc9b1bae77 [2021-12-15 13:03:54,955 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:03:54,955 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2021-12-15 13:03:54,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1191e044/425fde9f75d94392b13cdbc81922e35b/FLAGc9b1bae77 [2021-12-15 13:03:55,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1191e044/425fde9f75d94392b13cdbc81922e35b [2021-12-15 13:03:55,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:03:55,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:03:55,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:03:55,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:03:55,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:03:55,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:03:55" (1/1) ... [2021-12-15 13:03:55,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c322c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:03:55, skipping insertion in model container [2021-12-15 13:03:55,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:03:55" (1/1) ... [2021-12-15 13:03:55,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:03:55,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:03:56,379 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2021-12-15 13:03:56,513 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:03:56,532 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:03:56,760 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2021-12-15 13:03:56,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:03:56,832 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:03:56,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:03:56 WrapperNode [2021-12-15 13:03:56,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:03:56,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:03:56,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:03:56,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:03:56,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:03:56" (1/1) ... [2021-12-15 13:03:56,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:03:56" (1/1) ... [2021-12-15 13:03:56,979 INFO L137 Inliner]: procedures = 188, calls = 583, calls flagged for inlining = 72, calls inlined = 47, statements flattened = 1193 [2021-12-15 13:03:56,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:03:56,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:03:56,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:03:56,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:03:56,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:03:56" (1/1) ... [2021-12-15 13:03:56,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:03:56" (1/1) ... [2021-12-15 13:03:57,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:03:56" (1/1) ... [2021-12-15 13:03:57,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:03:56" (1/1) ... [2021-12-15 13:03:57,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:03:56" (1/1) ... [2021-12-15 13:03:57,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:03:56" (1/1) ... [2021-12-15 13:03:57,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:03:56" (1/1) ... [2021-12-15 13:03:57,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:03:57,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:03:57,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:03:57,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:03:57,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:03:56" (1/1) ... [2021-12-15 13:03:57,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:03:57,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:03:57,140 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 13:03:57,146 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 13:03:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-15 13:03:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-15 13:03:57,216 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2021-12-15 13:03:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2021-12-15 13:03:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2021-12-15 13:03:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2021-12-15 13:03:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 13:03:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2021-12-15 13:03:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2021-12-15 13:03:57,217 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2021-12-15 13:03:57,218 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2021-12-15 13:03:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 13:03:57,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 13:03:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-15 13:03:57,218 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-15 13:03:57,218 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2021-12-15 13:03:57,219 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2021-12-15 13:03:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 13:03:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-15 13:03:57,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-15 13:03:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-15 13:03:57,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-15 13:03:57,219 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2021-12-15 13:03:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2021-12-15 13:03:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2021-12-15 13:03:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2021-12-15 13:03:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:03:57,220 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2021-12-15 13:03:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2021-12-15 13:03:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-15 13:03:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-15 13:03:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:03:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2021-12-15 13:03:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2021-12-15 13:03:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 13:03:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:03:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2021-12-15 13:03:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2021-12-15 13:03:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2021-12-15 13:03:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2021-12-15 13:03:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-15 13:03:57,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-15 13:03:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:03:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-15 13:03:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-15 13:03:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-15 13:03:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-15 13:03:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 13:03:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 13:03:57,224 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2021-12-15 13:03:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2021-12-15 13:03:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2021-12-15 13:03:57,225 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2021-12-15 13:03:57,225 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2021-12-15 13:03:57,225 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2021-12-15 13:03:57,226 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-15 13:03:57,226 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-15 13:03:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2021-12-15 13:03:57,227 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2021-12-15 13:03:57,227 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2021-12-15 13:03:57,228 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2021-12-15 13:03:57,228 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-15 13:03:57,228 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-15 13:03:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2021-12-15 13:03:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2021-12-15 13:03:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2021-12-15 13:03:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2021-12-15 13:03:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 13:03:57,229 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-15 13:03:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-15 13:03:57,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:03:57,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:03:57,609 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:03:57,611 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:03:58,332 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 13:03:58,345 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 13:03:58,346 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 13:03:58,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:03:58 BoogieIcfgContainer [2021-12-15 13:03:58,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 13:03:58,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 13:03:58,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 13:03:58,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 13:03:58,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 01:03:55" (1/3) ... [2021-12-15 13:03:58,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec31c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 01:03:58, skipping insertion in model container [2021-12-15 13:03:58,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:03:56" (2/3) ... [2021-12-15 13:03:58,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec31c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 01:03:58, skipping insertion in model container [2021-12-15 13:03:58,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:03:58" (3/3) ... [2021-12-15 13:03:58,356 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2021-12-15 13:03:58,361 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 13:03:58,361 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 13:03:58,401 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 13:03:58,407 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 13:03:58,407 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 13:03:58,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 371 states, 271 states have (on average 1.3099630996309963) internal successors, (355), 279 states have internal predecessors, (355), 68 states have call successors, (68), 30 states have call predecessors, (68), 30 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2021-12-15 13:03:58,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 13:03:58,444 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 13:03:58,445 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] [2021-12-15 13:03:58,445 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 13:03:58,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 13:03:58,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1893635124, now seen corresponding path program 1 times [2021-12-15 13:03:58,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 13:03:58,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957601990] [2021-12-15 13:03:58,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 13:03:58,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 13:03:58,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 13:03:58,560 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction 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.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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 13:03:58,571 INFO L158 Benchmark]: Toolchain (without parser) took 3353.13ms. Allocated memory was 86.0MB in the beginning and 163.6MB in the end (delta: 77.6MB). Free memory was 47.1MB in the beginning and 77.0MB in the end (delta: -29.9MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2021-12-15 13:03:58,571 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 65.2MB in the beginning and 65.2MB in the end (delta: 552B). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:03:58,573 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1615.96ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 46.9MB in the beginning and 51.9MB in the end (delta: -5.1MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2021-12-15 13:03:58,573 INFO L158 Benchmark]: Boogie Procedure Inliner took 143.83ms. Allocated memory is still 107.0MB. Free memory was 51.9MB in the beginning and 43.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 13:03:58,577 INFO L158 Benchmark]: Boogie Preprocessor took 106.71ms. Allocated memory is still 107.0MB. Free memory was 43.5MB in the beginning and 36.1MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 13:03:58,578 INFO L158 Benchmark]: RCFGBuilder took 1261.28ms. Allocated memory was 107.0MB in the beginning and 163.6MB in the end (delta: 56.6MB). Free memory was 36.1MB in the beginning and 91.2MB in the end (delta: -55.1MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2021-12-15 13:03:58,579 INFO L158 Benchmark]: TraceAbstraction took 217.35ms. Allocated memory is still 163.6MB. Free memory was 90.4MB in the beginning and 77.0MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 13:03:58,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 65.2MB in the beginning and 65.2MB in the end (delta: 552B). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1615.96ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 46.9MB in the beginning and 51.9MB in the end (delta: -5.1MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 143.83ms. Allocated memory is still 107.0MB. Free memory was 51.9MB in the beginning and 43.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.71ms. Allocated memory is still 107.0MB. Free memory was 43.5MB in the beginning and 36.1MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1261.28ms. Allocated memory was 107.0MB in the beginning and 163.6MB in the end (delta: 56.6MB). Free memory was 36.1MB in the beginning and 91.2MB in the end (delta: -55.1MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * TraceAbstraction took 217.35ms. Allocated memory is still 163.6MB. Free memory was 90.4MB in the beginning and 77.0MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 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 13:03:58,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.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 e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 13:04:00,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 13:04:00,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 13:04:00,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 13:04:00,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 13:04:00,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 13:04:00,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 13:04:00,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 13:04:00,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 13:04:00,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 13:04:00,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 13:04:00,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 13:04:00,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 13:04:00,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 13:04:00,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 13:04:00,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 13:04:00,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 13:04:00,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 13:04:00,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 13:04:00,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 13:04:00,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 13:04:00,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 13:04:00,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 13:04:00,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 13:04:00,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 13:04:00,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 13:04:00,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 13:04:00,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 13:04:00,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 13:04:00,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 13:04:00,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 13:04:00,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 13:04:00,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 13:04:00,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 13:04:00,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 13:04:00,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 13:04:00,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 13:04:00,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 13:04:00,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 13:04:00,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 13:04:00,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 13:04:00,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-15 13:04:00,661 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 13:04:00,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 13:04:00,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 13:04:00,663 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 13:04:00,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 13:04:00,664 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 13:04:00,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 13:04:00,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 13:04:00,665 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 13:04:00,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 13:04:00,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 13:04:00,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 13:04:00,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 13:04:00,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 13:04:00,667 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 13:04:00,667 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 13:04:00,667 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 13:04:00,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 13:04:00,668 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 13:04:00,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 13:04:00,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 13:04:00,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 13:04:00,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 13:04:00,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:04:00,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 13:04:00,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 13:04:00,679 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 13:04:00,680 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 13:04:00,680 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 13:04:00,680 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 13:04:00,680 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 13:04:00,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 13:04:00,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 13:04:00,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 13:04:00,681 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 [2021-12-15 13:04:01,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 13:04:01,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 13:04:01,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 13:04:01,036 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 13:04:01,037 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 13:04:01,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2021-12-15 13:04:01,105 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/891b4c673/9cd2b400771e416e9db6fd3242fe3a7c/FLAG217d56211 [2021-12-15 13:04:01,875 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 13:04:01,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2021-12-15 13:04:01,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/891b4c673/9cd2b400771e416e9db6fd3242fe3a7c/FLAG217d56211 [2021-12-15 13:04:01,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/891b4c673/9cd2b400771e416e9db6fd3242fe3a7c [2021-12-15 13:04:01,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 13:04:01,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 13:04:01,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 13:04:01,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 13:04:01,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 13:04:01,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:04:01" (1/1) ... [2021-12-15 13:04:01,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb232a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:04:01, skipping insertion in model container [2021-12-15 13:04:01,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:04:01" (1/1) ... [2021-12-15 13:04:01,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 13:04:02,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:04:03,432 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2021-12-15 13:04:03,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:04:03,585 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 13:04:03,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 13:04:03,831 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2021-12-15 13:04:03,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:04:03,859 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 13:04:04,114 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2021-12-15 13:04:04,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 13:04:04,184 INFO L208 MainTranslator]: Completed translation [2021-12-15 13:04:04,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:04:04 WrapperNode [2021-12-15 13:04:04,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 13:04:04,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 13:04:04,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 13:04:04,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 13:04:04,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:04:04" (1/1) ... [2021-12-15 13:04:04,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:04:04" (1/1) ... [2021-12-15 13:04:04,311 INFO L137 Inliner]: procedures = 203, calls = 582, calls flagged for inlining = 72, calls inlined = 47, statements flattened = 1139 [2021-12-15 13:04:04,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 13:04:04,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 13:04:04,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 13:04:04,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 13:04:04,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:04:04" (1/1) ... [2021-12-15 13:04:04,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:04:04" (1/1) ... [2021-12-15 13:04:04,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:04:04" (1/1) ... [2021-12-15 13:04:04,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:04:04" (1/1) ... [2021-12-15 13:04:04,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:04:04" (1/1) ... [2021-12-15 13:04:04,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:04:04" (1/1) ... [2021-12-15 13:04:04,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:04:04" (1/1) ... [2021-12-15 13:04:04,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 13:04:04,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 13:04:04,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 13:04:04,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 13:04:04,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:04:04" (1/1) ... [2021-12-15 13:04:04,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 13:04:04,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 13:04:04,441 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 13:04:04,467 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 13:04:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 13:04:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 13:04:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 13:04:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-15 13:04:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2021-12-15 13:04:04,483 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2021-12-15 13:04:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2021-12-15 13:04:04,483 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2021-12-15 13:04:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 13:04:04,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 13:04:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-15 13:04:04,484 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-15 13:04:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-15 13:04:04,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-15 13:04:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-15 13:04:04,484 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-15 13:04:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 13:04:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 13:04:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-15 13:04:04,485 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-15 13:04:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 13:04:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-15 13:04:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 13:04:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 13:04:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 13:04:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-15 13:04:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 13:04:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 13:04:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-15 13:04:04,486 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-15 13:04:04,487 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-15 13:04:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2021-12-15 13:04:04,487 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2021-12-15 13:04:04,487 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-15 13:04:04,488 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-15 13:04:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2021-12-15 13:04:04,488 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2021-12-15 13:04:04,488 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2021-12-15 13:04:04,488 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2021-12-15 13:04:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-15 13:04:04,489 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-15 13:04:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-15 13:04:04,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-15 13:04:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2021-12-15 13:04:04,489 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2021-12-15 13:04:04,489 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2021-12-15 13:04:04,490 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2021-12-15 13:04:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-12-15 13:04:04,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-12-15 13:04:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2021-12-15 13:04:04,491 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2021-12-15 13:04:04,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-15 13:04:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-15 13:04:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2021-12-15 13:04:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2021-12-15 13:04:04,493 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2021-12-15 13:04:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2021-12-15 13:04:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 13:04:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2021-12-15 13:04:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2021-12-15 13:04:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 13:04:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2021-12-15 13:04:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2021-12-15 13:04:04,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 13:04:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2021-12-15 13:04:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2021-12-15 13:04:04,495 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2021-12-15 13:04:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2021-12-15 13:04:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-15 13:04:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-15 13:04:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2021-12-15 13:04:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2021-12-15 13:04:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2021-12-15 13:04:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2021-12-15 13:04:04,496 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2021-12-15 13:04:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2021-12-15 13:04:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2021-12-15 13:04:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2021-12-15 13:04:04,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 13:04:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 13:04:04,897 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 13:04:04,901 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 13:04:06,478 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 13:04:06,505 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 13:04:06,507 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 13:04:06,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:04:06 BoogieIcfgContainer [2021-12-15 13:04:06,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 13:04:06,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 13:04:06,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 13:04:06,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 13:04:06,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 01:04:01" (1/3) ... [2021-12-15 13:04:06,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a21e6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 01:04:06, skipping insertion in model container [2021-12-15 13:04:06,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:04:04" (2/3) ... [2021-12-15 13:04:06,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a21e6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 01:04:06, skipping insertion in model container [2021-12-15 13:04:06,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:04:06" (3/3) ... [2021-12-15 13:04:06,521 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2021-12-15 13:04:06,526 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 13:04:06,527 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 13:04:06,576 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 13:04:06,582 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 13:04:06,582 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 13:04:06,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 368 states, 269 states have (on average 1.308550185873606) internal successors, (352), 277 states have internal predecessors, (352), 67 states have call successors, (67), 30 states have call predecessors, (67), 30 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2021-12-15 13:04:06,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 13:04:06,619 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 13:04:06,620 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] [2021-12-15 13:04:06,620 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 13:04:06,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 13:04:06,628 INFO L85 PathProgramCache]: Analyzing trace with hash -884394373, now seen corresponding path program 1 times [2021-12-15 13:04:06,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 13:04:06,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922801645] [2021-12-15 13:04:06,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 13:04:06,643 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 13:04:06,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 13:04:06,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 13:04:06,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 13:04:06,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-15 13:04:07,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 13:04:07,050 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction 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.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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 13:04:07,059 INFO L158 Benchmark]: Toolchain (without parser) took 5108.36ms. Allocated memory was 54.5MB in the beginning and 243.3MB in the end (delta: 188.7MB). Free memory was 32.2MB in the beginning and 134.3MB in the end (delta: -102.1MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. [2021-12-15 13:04:07,059 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.6MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 13:04:07,060 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2238.36ms. Allocated memory was 54.5MB in the beginning and 148.9MB in the end (delta: 94.4MB). Free memory was 32.1MB in the beginning and 61.7MB in the end (delta: -29.6MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2021-12-15 13:04:07,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.42ms. Allocated memory is still 148.9MB. Free memory was 61.7MB in the beginning and 83.5MB in the end (delta: -21.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2021-12-15 13:04:07,061 INFO L158 Benchmark]: Boogie Preprocessor took 92.58ms. Allocated memory is still 148.9MB. Free memory was 83.5MB in the beginning and 75.1MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 13:04:07,061 INFO L158 Benchmark]: RCFGBuilder took 2098.10ms. Allocated memory was 148.9MB in the beginning and 243.3MB in the end (delta: 94.4MB). Free memory was 75.1MB in the beginning and 153.4MB in the end (delta: -78.4MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2021-12-15 13:04:07,061 INFO L158 Benchmark]: TraceAbstraction took 540.94ms. Allocated memory is still 243.3MB. Free memory was 152.4MB in the beginning and 134.3MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-15 13:04:07,064 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 54.5MB. Free memory was 36.6MB in the beginning and 36.6MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2238.36ms. Allocated memory was 54.5MB in the beginning and 148.9MB in the end (delta: 94.4MB). Free memory was 32.1MB in the beginning and 61.7MB in the end (delta: -29.6MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 133.42ms. Allocated memory is still 148.9MB. Free memory was 61.7MB in the beginning and 83.5MB in the end (delta: -21.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.58ms. Allocated memory is still 148.9MB. Free memory was 83.5MB in the beginning and 75.1MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2098.10ms. Allocated memory was 148.9MB in the beginning and 243.3MB in the end (delta: 94.4MB). Free memory was 75.1MB in the beginning and 153.4MB in the end (delta: -78.4MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * TraceAbstraction took 540.94ms. Allocated memory is still 243.3MB. Free memory was 152.4MB in the beginning and 134.3MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 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 13:04:07,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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