./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-18 05:25:13,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 05:25:13,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 05:25:13,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 05:25:13,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 05:25:13,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 05:25:13,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 05:25:13,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 05:25:13,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 05:25:13,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 05:25:13,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 05:25:13,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 05:25:13,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 05:25:13,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 05:25:13,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 05:25:13,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 05:25:13,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 05:25:13,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 05:25:13,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 05:25:13,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 05:25:13,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 05:25:13,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 05:25:13,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 05:25:13,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 05:25:13,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 05:25:13,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 05:25:13,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 05:25:13,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 05:25:13,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 05:25:13,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 05:25:13,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 05:25:13,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 05:25:13,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 05:25:13,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 05:25:13,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 05:25:13,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 05:25:13,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 05:25:13,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 05:25:13,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 05:25:13,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 05:25:13,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 05:25:13,953 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 05:25:13,979 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 05:25:13,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 05:25:13,980 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 05:25:13,980 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 05:25:13,981 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 05:25:13,981 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 05:25:13,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 05:25:13,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 05:25:13,982 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 05:25:13,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 05:25:13,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 05:25:13,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 05:25:13,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 05:25:13,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 05:25:13,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 05:25:13,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 05:25:13,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 05:25:13,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 05:25:13,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 05:25:13,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 05:25:13,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 05:25:13,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 05:25:13,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 05:25:13,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 05:25:13,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 05:25:13,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 05:25:13,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 05:25:13,987 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 05:25:13,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 05:25:13,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 05:25:13,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 05:25:13,988 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8946ad2f029076f7c4f90de60a8c48e069f80fec06a0c6d7a5dc3a1fc4182879 [2021-12-18 05:25:14,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 05:25:14,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 05:25:14,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 05:25:14,267 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 05:25:14,267 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 05:25:14,268 INFO L432 ainManager$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 [2021-12-18 05:25:14,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1433045d6/56b04e1e30074faa902c17bbe8ee3a2b/FLAGa2714fd8c [2021-12-18 05:25:14,961 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 05:25:14,961 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 [2021-12-18 05:25:14,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1433045d6/56b04e1e30074faa902c17bbe8ee3a2b/FLAGa2714fd8c [2021-12-18 05:25:15,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1433045d6/56b04e1e30074faa902c17bbe8ee3a2b [2021-12-18 05:25:15,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 05:25:15,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 05:25:15,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 05:25:15,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 05:25:15,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 05:25:15,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:25:15" (1/1) ... [2021-12-18 05:25:15,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d7042e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:15, skipping insertion in model container [2021-12-18 05:25:15,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:25:15" (1/1) ... [2021-12-18 05:25:15,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 05:25:15,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 05:25:16,119 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] [2021-12-18 05:25:16,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:25:16,164 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 05:25:16,424 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] [2021-12-18 05:25:16,431 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:25:16,479 INFO L208 MainTranslator]: Completed translation [2021-12-18 05:25:16,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:16 WrapperNode [2021-12-18 05:25:16,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 05:25:16,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 05:25:16,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 05:25:16,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 05:25:16,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:16" (1/1) ... [2021-12-18 05:25:16,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:16" (1/1) ... [2021-12-18 05:25:16,635 INFO L137 Inliner]: procedures = 142, calls = 521, calls flagged for inlining = 83, calls inlined = 83, statements flattened = 1657 [2021-12-18 05:25:16,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 05:25:16,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 05:25:16,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 05:25:16,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 05:25:16,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:16" (1/1) ... [2021-12-18 05:25:16,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:16" (1/1) ... [2021-12-18 05:25:16,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:16" (1/1) ... [2021-12-18 05:25:16,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:16" (1/1) ... [2021-12-18 05:25:16,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:16" (1/1) ... [2021-12-18 05:25:16,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:16" (1/1) ... [2021-12-18 05:25:16,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:16" (1/1) ... [2021-12-18 05:25:16,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 05:25:16,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 05:25:16,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 05:25:16,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 05:25:16,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:16" (1/1) ... [2021-12-18 05:25:16,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 05:25:16,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:25:16,775 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) [2021-12-18 05:25:16,794 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 [2021-12-18 05:25:16,816 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2021-12-18 05:25:16,816 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2021-12-18 05:25:16,816 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2021-12-18 05:25:16,816 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2021-12-18 05:25:16,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 05:25:16,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 05:25:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 05:25:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 05:25:16,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 05:25:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2021-12-18 05:25:16,817 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2021-12-18 05:25:16,817 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-12-18 05:25:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-12-18 05:25:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 05:25:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 05:25:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2021-12-18 05:25:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2021-12-18 05:25:16,818 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2021-12-18 05:25:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2021-12-18 05:25:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 05:25:16,819 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 05:25:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 05:25:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 05:25:16,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 05:25:16,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 05:25:16,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 05:25:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2021-12-18 05:25:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2021-12-18 05:25:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 05:25:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 05:25:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 05:25:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 05:25:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 05:25:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 05:25:16,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 05:25:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 05:25:16,821 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 05:25:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 05:25:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2021-12-18 05:25:16,822 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2021-12-18 05:25:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 05:25:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 05:25:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 05:25:16,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 05:25:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2021-12-18 05:25:16,823 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2021-12-18 05:25:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2021-12-18 05:25:16,823 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2021-12-18 05:25:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 05:25:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-18 05:25:16,824 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-18 05:25:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 05:25:16,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 05:25:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 05:25:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 05:25:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-12-18 05:25:16,825 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-12-18 05:25:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2021-12-18 05:25:16,826 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2021-12-18 05:25:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 05:25:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 05:25:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 05:25:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 05:25:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 05:25:17,289 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 05:25:17,291 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 05:25:17,728 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 05:25:18,284 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 05:25:18,301 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 05:25:18,302 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 05:25:18,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:25:18 BoogieIcfgContainer [2021-12-18 05:25:18,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 05:25:18,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 05:25:18,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 05:25:18,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 05:25:18,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 05:25:15" (1/3) ... [2021-12-18 05:25:18,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442e2c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:25:18, skipping insertion in model container [2021-12-18 05:25:18,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:16" (2/3) ... [2021-12-18 05:25:18,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442e2c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:25:18, skipping insertion in model container [2021-12-18 05:25:18,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:25:18" (3/3) ... [2021-12-18 05:25:18,314 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-18 05:25:18,318 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 05:25:18,319 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 05:25:18,368 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 05:25:18,374 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 [2021-12-18 05:25:18,374 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 05:25:18,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 458 states, 347 states have (on average 1.2910662824207493) internal successors, (448), 359 states have internal predecessors, (448), 84 states have call successors, (84), 26 states have call predecessors, (84), 25 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2021-12-18 05:25:18,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-18 05:25:18,440 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:18,441 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:18,441 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:18,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:18,445 INFO L85 PathProgramCache]: Analyzing trace with hash -552855411, now seen corresponding path program 1 times [2021-12-18 05:25:18,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:25:18,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066497888] [2021-12-18 05:25:18,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:18,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:25:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:25:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:18,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:18,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:18,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 05:25:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:18,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 05:25:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:18,849 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-18 05:25:18,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:25:18,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066497888] [2021-12-18 05:25:18,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066497888] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:25:18,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:25:18,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 05:25:18,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660974983] [2021-12-18 05:25:18,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:25:18,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 05:25:18,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:25:18,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 05:25:18,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 05:25:18,880 INFO L87 Difference]: Start difference. First operand has 458 states, 347 states have (on average 1.2910662824207493) internal successors, (448), 359 states have internal predecessors, (448), 84 states have call successors, (84), 26 states have call predecessors, (84), 25 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-18 05:25:20,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:25:20,465 INFO L93 Difference]: Finished difference Result 1516 states and 2132 transitions. [2021-12-18 05:25:20,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 05:25:20,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 46 [2021-12-18 05:25:20,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:25:20,499 INFO L225 Difference]: With dead ends: 1516 [2021-12-18 05:25:20,499 INFO L226 Difference]: Without dead ends: 1029 [2021-12-18 05:25:20,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 05:25:20,518 INFO L933 BasicCegarLoop]: 633 mSDtfsCounter, 1103 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-18 05:25:20,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1179 Valid, 1989 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [535 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-18 05:25:20,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2021-12-18 05:25:20,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 836. [2021-12-18 05:25:20,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 641 states have (on average 1.2620904836193447) internal successors, (809), 650 states have internal predecessors, (809), 149 states have call successors, (149), 46 states have call predecessors, (149), 45 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2021-12-18 05:25:20,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1105 transitions. [2021-12-18 05:25:20,634 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1105 transitions. Word has length 46 [2021-12-18 05:25:20,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:25:20,635 INFO L470 AbstractCegarLoop]: Abstraction has 836 states and 1105 transitions. [2021-12-18 05:25:20,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-18 05:25:20,636 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1105 transitions. [2021-12-18 05:25:20,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-18 05:25:20,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:20,638 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:20,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 05:25:20,638 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:20,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:20,639 INFO L85 PathProgramCache]: Analyzing trace with hash 95226783, now seen corresponding path program 1 times [2021-12-18 05:25:20,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:25:20,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072879501] [2021-12-18 05:25:20,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:20,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:25:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:20,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:25:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:20,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:20,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:20,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 05:25:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:20,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 05:25:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:20,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-18 05:25:20,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:25:20,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072879501] [2021-12-18 05:25:20,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072879501] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:25:20,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:25:20,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 05:25:20,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116902202] [2021-12-18 05:25:20,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:25:20,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 05:25:20,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:25:20,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 05:25:20,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 05:25:20,788 INFO L87 Difference]: Start difference. First operand 836 states and 1105 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 05:25:21,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:25:21,900 INFO L93 Difference]: Finished difference Result 2018 states and 2763 transitions. [2021-12-18 05:25:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 05:25:21,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2021-12-18 05:25:21,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:25:21,916 INFO L225 Difference]: With dead ends: 2018 [2021-12-18 05:25:21,917 INFO L226 Difference]: Without dead ends: 2009 [2021-12-18 05:25:21,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 05:25:21,919 INFO L933 BasicCegarLoop]: 616 mSDtfsCounter, 1366 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 770 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 770 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:25:21,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1443 Valid, 1423 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [770 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-18 05:25:21,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2021-12-18 05:25:22,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 1633. [2021-12-18 05:25:22,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1254 states have (on average 1.2615629984051038) internal successors, (1582), 1271 states have internal predecessors, (1582), 289 states have call successors, (289), 90 states have call predecessors, (289), 89 states have return successors, (287), 287 states have call predecessors, (287), 287 states have call successors, (287) [2021-12-18 05:25:22,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2158 transitions. [2021-12-18 05:25:22,046 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2158 transitions. Word has length 49 [2021-12-18 05:25:22,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:25:22,047 INFO L470 AbstractCegarLoop]: Abstraction has 1633 states and 2158 transitions. [2021-12-18 05:25:22,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 05:25:22,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2158 transitions. [2021-12-18 05:25:22,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-18 05:25:22,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:22,058 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:22,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 05:25:22,059 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:22,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:22,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1803513478, now seen corresponding path program 1 times [2021-12-18 05:25:22,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:25:22,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612279940] [2021-12-18 05:25:22,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:22,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:25:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:25:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:22,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:22,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:22,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 05:25:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:22,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 05:25:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:22,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 05:25:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:22,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-18 05:25:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:22,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:22,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 05:25:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:22,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 05:25:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:22,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 05:25:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:22,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:22,264 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-18 05:25:22,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:25:22,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612279940] [2021-12-18 05:25:22,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612279940] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:25:22,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:25:22,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 05:25:22,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656053092] [2021-12-18 05:25:22,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:25:22,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 05:25:22,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:25:22,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 05:25:22,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-18 05:25:22,268 INFO L87 Difference]: Start difference. First operand 1633 states and 2158 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 05:25:23,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:25:23,787 INFO L93 Difference]: Finished difference Result 6006 states and 8246 transitions. [2021-12-18 05:25:23,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 05:25:23,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2021-12-18 05:25:23,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:25:23,825 INFO L225 Difference]: With dead ends: 6006 [2021-12-18 05:25:23,826 INFO L226 Difference]: Without dead ends: 4387 [2021-12-18 05:25:23,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-18 05:25:23,836 INFO L933 BasicCegarLoop]: 610 mSDtfsCounter, 1713 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 1124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 1823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1124 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-18 05:25:23,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1801 Valid, 1713 Invalid, 1823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1124 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-18 05:25:23,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2021-12-18 05:25:23,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 3023. [2021-12-18 05:25:23,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3023 states, 2312 states have (on average 1.258650519031142) internal successors, (2910), 2345 states have internal predecessors, (2910), 535 states have call successors, (535), 176 states have call predecessors, (535), 175 states have return successors, (533), 533 states have call predecessors, (533), 533 states have call successors, (533) [2021-12-18 05:25:24,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3023 states to 3023 states and 3978 transitions. [2021-12-18 05:25:24,006 INFO L78 Accepts]: Start accepts. Automaton has 3023 states and 3978 transitions. Word has length 110 [2021-12-18 05:25:24,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:25:24,008 INFO L470 AbstractCegarLoop]: Abstraction has 3023 states and 3978 transitions. [2021-12-18 05:25:24,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 05:25:24,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3023 states and 3978 transitions. [2021-12-18 05:25:24,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-18 05:25:24,015 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:24,015 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:24,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 05:25:24,016 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:24,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:24,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1431908567, now seen corresponding path program 1 times [2021-12-18 05:25:24,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:25:24,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551046699] [2021-12-18 05:25:24,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:24,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:25:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:25:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 05:25:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 05:25:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 05:25:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 05:25:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 05:25:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 05:25:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 05:25:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:25:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 05:25:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:24,302 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-12-18 05:25:24,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:25:24,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551046699] [2021-12-18 05:25:24,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551046699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:25:24,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:25:24,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 05:25:24,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579445555] [2021-12-18 05:25:24,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:25:24,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 05:25:24,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:25:24,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 05:25:24,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-18 05:25:24,305 INFO L87 Difference]: Start difference. First operand 3023 states and 3978 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 05:25:25,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:25:25,642 INFO L93 Difference]: Finished difference Result 7395 states and 10067 transitions. [2021-12-18 05:25:25,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 05:25:25,643 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 153 [2021-12-18 05:25:25,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:25:25,671 INFO L225 Difference]: With dead ends: 7395 [2021-12-18 05:25:25,671 INFO L226 Difference]: Without dead ends: 4390 [2021-12-18 05:25:25,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-12-18 05:25:25,681 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 446 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:25:25,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2430 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-18 05:25:25,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4390 states. [2021-12-18 05:25:25,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4390 to 3026. [2021-12-18 05:25:25,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3026 states, 2315 states have (on average 1.257451403887689) internal successors, (2911), 2348 states have internal predecessors, (2911), 535 states have call successors, (535), 176 states have call predecessors, (535), 175 states have return successors, (533), 533 states have call predecessors, (533), 533 states have call successors, (533) [2021-12-18 05:25:25,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3026 states to 3026 states and 3979 transitions. [2021-12-18 05:25:25,819 INFO L78 Accepts]: Start accepts. Automaton has 3026 states and 3979 transitions. Word has length 153 [2021-12-18 05:25:25,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:25:25,820 INFO L470 AbstractCegarLoop]: Abstraction has 3026 states and 3979 transitions. [2021-12-18 05:25:25,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 05:25:25,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3026 states and 3979 transitions. [2021-12-18 05:25:25,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-18 05:25:25,825 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:25,825 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:25,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 05:25:25,826 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:25,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:25,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2072432622, now seen corresponding path program 1 times [2021-12-18 05:25:25,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:25:25,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354331149] [2021-12-18 05:25:25,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:25,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:25:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:25,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:25:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:25,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:25,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 05:25:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:25,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 05:25:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:25,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-18 05:25:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:25,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:26,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:26,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 05:25:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:26,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:26,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 05:25:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:26,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 05:25:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:26,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:26,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 05:25:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:26,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 05:25:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:26,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 05:25:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:26,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:26,087 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-18 05:25:26,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:25:26,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354331149] [2021-12-18 05:25:26,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354331149] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:25:26,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:25:26,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 05:25:26,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757332414] [2021-12-18 05:25:26,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:25:26,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 05:25:26,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:25:26,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 05:25:26,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-18 05:25:26,089 INFO L87 Difference]: Start difference. First operand 3026 states and 3979 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 05:25:27,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:25:27,515 INFO L93 Difference]: Finished difference Result 7388 states and 10051 transitions. [2021-12-18 05:25:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 05:25:27,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 154 [2021-12-18 05:25:27,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:25:27,582 INFO L225 Difference]: With dead ends: 7388 [2021-12-18 05:25:27,582 INFO L226 Difference]: Without dead ends: 4382 [2021-12-18 05:25:27,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-18 05:25:27,595 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 339 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 3141 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-18 05:25:27,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 3141 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-18 05:25:27,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4382 states. [2021-12-18 05:25:27,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4382 to 3030. [2021-12-18 05:25:27,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 2317 states have (on average 1.2572291756581786) internal successors, (2913), 2352 states have internal predecessors, (2913), 535 states have call successors, (535), 176 states have call predecessors, (535), 177 states have return successors, (549), 533 states have call predecessors, (549), 533 states have call successors, (549) [2021-12-18 05:25:27,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3997 transitions. [2021-12-18 05:25:27,740 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3997 transitions. Word has length 154 [2021-12-18 05:25:27,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:25:27,741 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3997 transitions. [2021-12-18 05:25:27,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 05:25:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3997 transitions. [2021-12-18 05:25:27,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-18 05:25:27,747 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:27,747 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:27,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 05:25:27,748 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:27,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:27,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2085975844, now seen corresponding path program 1 times [2021-12-18 05:25:27,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:25:27,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699384000] [2021-12-18 05:25:27,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:27,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:25:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:27,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:25:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:27,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:27,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:27,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 05:25:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:27,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 05:25:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:27,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-18 05:25:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:27,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:27,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:27,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 05:25:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:27,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:27,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:27,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 05:25:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:27,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 05:25:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:28,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:28,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 05:25:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:28,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:25:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:28,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 05:25:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:28,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:28,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 05:25:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:28,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-18 05:25:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:28,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 05:25:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:28,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:28,046 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-12-18 05:25:28,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:25:28,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699384000] [2021-12-18 05:25:28,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699384000] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:25:28,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615858579] [2021-12-18 05:25:28,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:28,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:25:28,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:25:28,051 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:25:28,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 05:25:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:28,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-18 05:25:28,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:25:28,904 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-18 05:25:28,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:25:28,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615858579] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:25:28,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 05:25:28,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2021-12-18 05:25:28,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408418517] [2021-12-18 05:25:28,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:25:28,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 05:25:28,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:25:28,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 05:25:28,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:25:28,907 INFO L87 Difference]: Start difference. First operand 3030 states and 3997 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 05:25:29,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:25:29,031 INFO L93 Difference]: Finished difference Result 6048 states and 7982 transitions. [2021-12-18 05:25:29,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 05:25:29,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2021-12-18 05:25:29,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:25:29,049 INFO L225 Difference]: With dead ends: 6048 [2021-12-18 05:25:29,050 INFO L226 Difference]: Without dead ends: 3031 [2021-12-18 05:25:29,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-18 05:25:29,064 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 3 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:25:29,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1726 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 05:25:29,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states. [2021-12-18 05:25:29,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 3031. [2021-12-18 05:25:29,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3031 states, 2318 states have (on average 1.2571182053494392) internal successors, (2914), 2353 states have internal predecessors, (2914), 535 states have call successors, (535), 176 states have call predecessors, (535), 177 states have return successors, (549), 533 states have call predecessors, (549), 533 states have call successors, (549) [2021-12-18 05:25:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3031 states to 3031 states and 3998 transitions. [2021-12-18 05:25:29,177 INFO L78 Accepts]: Start accepts. Automaton has 3031 states and 3998 transitions. Word has length 175 [2021-12-18 05:25:29,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:25:29,177 INFO L470 AbstractCegarLoop]: Abstraction has 3031 states and 3998 transitions. [2021-12-18 05:25:29,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 05:25:29,178 INFO L276 IsEmpty]: Start isEmpty. Operand 3031 states and 3998 transitions. [2021-12-18 05:25:29,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-18 05:25:29,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:29,184 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:29,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 05:25:29,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-18 05:25:29,404 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:29,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:29,404 INFO L85 PathProgramCache]: Analyzing trace with hash -2062309340, now seen corresponding path program 1 times [2021-12-18 05:25:29,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:25:29,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397295710] [2021-12-18 05:25:29,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:29,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:25:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:25:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 05:25:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 05:25:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 05:25:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 05:25:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 05:25:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 05:25:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 05:25:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:25:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 05:25:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 05:25:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 05:25:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 05:25:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-12-18 05:25:29,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:25:29,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397295710] [2021-12-18 05:25:29,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397295710] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:25:29,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112591374] [2021-12-18 05:25:29,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:29,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:25:29,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:25:29,776 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:25:29,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 05:25:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:30,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-18 05:25:30,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:25:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 44 proven. 1 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-18 05:25:30,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:25:30,908 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-12-18 05:25:30,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112591374] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:25:30,909 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:25:30,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2021-12-18 05:25:30,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052954960] [2021-12-18 05:25:30,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:25:30,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-18 05:25:30,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:25:30,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-18 05:25:30,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-12-18 05:25:30,912 INFO L87 Difference]: Start difference. First operand 3031 states and 3998 transitions. Second operand has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 10 states have internal predecessors, (129), 2 states have call successors, (39), 6 states have call predecessors, (39), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 05:25:32,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:25:32,538 INFO L93 Difference]: Finished difference Result 7412 states and 10094 transitions. [2021-12-18 05:25:32,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 05:25:32,538 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 10 states have internal predecessors, (129), 2 states have call successors, (39), 6 states have call predecessors, (39), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 177 [2021-12-18 05:25:32,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:25:32,569 INFO L225 Difference]: With dead ends: 7412 [2021-12-18 05:25:32,570 INFO L226 Difference]: Without dead ends: 4394 [2021-12-18 05:25:32,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 388 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2021-12-18 05:25:32,586 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 461 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-18 05:25:32,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 2897 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-18 05:25:32,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2021-12-18 05:25:32,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 3041. [2021-12-18 05:25:32,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 2327 states have (on average 1.2574129780833692) internal successors, (2926), 2362 states have internal predecessors, (2926), 535 states have call successors, (535), 177 states have call predecessors, (535), 178 states have return successors, (549), 533 states have call predecessors, (549), 533 states have call successors, (549) [2021-12-18 05:25:32,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4010 transitions. [2021-12-18 05:25:32,723 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4010 transitions. Word has length 177 [2021-12-18 05:25:32,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:25:32,724 INFO L470 AbstractCegarLoop]: Abstraction has 3041 states and 4010 transitions. [2021-12-18 05:25:32,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.214285714285714) internal successors, (129), 10 states have internal predecessors, (129), 2 states have call successors, (39), 6 states have call predecessors, (39), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 05:25:32,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4010 transitions. [2021-12-18 05:25:32,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-18 05:25:32,730 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:32,731 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:32,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 05:25:32,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-18 05:25:32,948 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:32,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:32,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1821890820, now seen corresponding path program 2 times [2021-12-18 05:25:32,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:25:32,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404450967] [2021-12-18 05:25:32,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:32,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:25:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:25:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 05:25:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-18 05:25:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 05:25:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 05:25:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 05:25:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 05:25:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 05:25:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:25:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 05:25:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 05:25:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 05:25:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 05:25:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-18 05:25:33,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:25:33,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404450967] [2021-12-18 05:25:33,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404450967] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:25:33,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34097137] [2021-12-18 05:25:33,456 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:25:33,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:25:33,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:25:33,460 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:25:33,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 05:25:33,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 05:25:33,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:25:33,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-18 05:25:33,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:25:34,275 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 42 proven. 25 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-18 05:25:34,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:25:34,713 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-12-18 05:25:34,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34097137] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:25:34,713 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:25:34,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 6] total 25 [2021-12-18 05:25:34,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122591614] [2021-12-18 05:25:34,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:25:34,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-18 05:25:34,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:25:34,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-18 05:25:34,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2021-12-18 05:25:34,715 INFO L87 Difference]: Start difference. First operand 3041 states and 4010 transitions. Second operand has 25 states, 25 states have (on average 5.52) internal successors, (138), 21 states have internal predecessors, (138), 2 states have call successors, (38), 6 states have call predecessors, (38), 5 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 05:25:37,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:25:37,479 INFO L93 Difference]: Finished difference Result 7421 states and 10101 transitions. [2021-12-18 05:25:37,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-18 05:25:37,481 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.52) internal successors, (138), 21 states have internal predecessors, (138), 2 states have call successors, (38), 6 states have call predecessors, (38), 5 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 181 [2021-12-18 05:25:37,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:25:37,517 INFO L225 Difference]: With dead ends: 7421 [2021-12-18 05:25:37,518 INFO L226 Difference]: Without dead ends: 4392 [2021-12-18 05:25:37,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=311, Invalid=1495, Unknown=0, NotChecked=0, Total=1806 [2021-12-18 05:25:37,533 INFO L933 BasicCegarLoop]: 548 mSDtfsCounter, 555 mSDsluCounter, 8135 mSDsCounter, 0 mSdLazyCounter, 3040 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 8683 SdHoareTripleChecker+Invalid, 3479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 3040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:25:37,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 8683 Invalid, 3479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 3040 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-18 05:25:37,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4392 states. [2021-12-18 05:25:37,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4392 to 3044. [2021-12-18 05:25:37,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3044 states, 2330 states have (on average 1.255793991416309) internal successors, (2926), 2365 states have internal predecessors, (2926), 535 states have call successors, (535), 177 states have call predecessors, (535), 178 states have return successors, (549), 533 states have call predecessors, (549), 533 states have call successors, (549) [2021-12-18 05:25:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 4010 transitions. [2021-12-18 05:25:37,773 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 4010 transitions. Word has length 181 [2021-12-18 05:25:37,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:25:37,773 INFO L470 AbstractCegarLoop]: Abstraction has 3044 states and 4010 transitions. [2021-12-18 05:25:37,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.52) internal successors, (138), 21 states have internal predecessors, (138), 2 states have call successors, (38), 6 states have call predecessors, (38), 5 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 05:25:37,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 4010 transitions. [2021-12-18 05:25:37,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-18 05:25:37,780 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:37,780 INFO L514 BasicCegarLoop]: trace histogram [9, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:37,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 05:25:37,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:25:37,994 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:37,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:37,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1555552287, now seen corresponding path program 3 times [2021-12-18 05:25:37,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:25:37,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646478383] [2021-12-18 05:25:37,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:37,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:25:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:25:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 05:25:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 05:25:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 05:25:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 05:25:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:25:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-18 05:25:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 05:25:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 05:25:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:25:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 05:25:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 05:25:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 05:25:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 05:25:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:25:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:38,417 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-12-18 05:25:38,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:25:38,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646478383] [2021-12-18 05:25:38,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646478383] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:25:38,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997653952] [2021-12-18 05:25:38,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-18 05:25:38,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:25:38,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:25:38,419 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 05:25:38,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 05:25:40,340 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-12-18 05:25:40,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:25:40,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 1375 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-18 05:25:40,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:25:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-12-18 05:25:40,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:25:41,241 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-12-18 05:25:41,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997653952] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:25:41,241 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 05:25:41,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 26 [2021-12-18 05:25:41,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316120475] [2021-12-18 05:25:41,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 05:25:41,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-18 05:25:41,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:25:41,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-18 05:25:41,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2021-12-18 05:25:41,244 INFO L87 Difference]: Start difference. First operand 3044 states and 4010 transitions. Second operand has 26 states, 26 states have (on average 5.423076923076923) internal successors, (141), 22 states have internal predecessors, (141), 2 states have call successors, (39), 6 states have call predecessors, (39), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 05:25:43,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:25:43,639 INFO L93 Difference]: Finished difference Result 7419 states and 10094 transitions. [2021-12-18 05:25:43,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-18 05:25:43,640 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.423076923076923) internal successors, (141), 22 states have internal predecessors, (141), 2 states have call successors, (39), 6 states have call predecessors, (39), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 184 [2021-12-18 05:25:43,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:25:43,667 INFO L225 Difference]: With dead ends: 7419 [2021-12-18 05:25:43,668 INFO L226 Difference]: Without dead ends: 4395 [2021-12-18 05:25:43,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 394 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=420, Invalid=1472, Unknown=0, NotChecked=0, Total=1892 [2021-12-18 05:25:43,684 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 641 mSDsluCounter, 5873 mSDsCounter, 0 mSdLazyCounter, 2064 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 6418 SdHoareTripleChecker+Invalid, 2640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 2064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-18 05:25:43,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [669 Valid, 6418 Invalid, 2640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 2064 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-18 05:25:43,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4395 states. [2021-12-18 05:25:43,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4395 to 3047. [2021-12-18 05:25:43,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3047 states, 2333 states have (on average 1.2554650664380627) internal successors, (2929), 2368 states have internal predecessors, (2929), 535 states have call successors, (535), 177 states have call predecessors, (535), 178 states have return successors, (549), 533 states have call predecessors, (549), 533 states have call successors, (549) [2021-12-18 05:25:43,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3047 states to 3047 states and 4013 transitions. [2021-12-18 05:25:43,875 INFO L78 Accepts]: Start accepts. Automaton has 3047 states and 4013 transitions. Word has length 184 [2021-12-18 05:25:43,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:25:43,875 INFO L470 AbstractCegarLoop]: Abstraction has 3047 states and 4013 transitions. [2021-12-18 05:25:43,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.423076923076923) internal successors, (141), 22 states have internal predecessors, (141), 2 states have call successors, (39), 6 states have call predecessors, (39), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 05:25:43,876 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 4013 transitions. [2021-12-18 05:25:43,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-18 05:25:43,884 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:43,884 INFO L514 BasicCegarLoop]: trace histogram [12, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:43,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-18 05:25:44,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:25:44,096 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:44,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:44,096 INFO L85 PathProgramCache]: Analyzing trace with hash -53138148, now seen corresponding path program 4 times [2021-12-18 05:25:44,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:25:44,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335351175] [2021-12-18 05:25:44,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:44,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:25:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 05:25:44,402 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-18 05:25:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 05:25:44,706 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-18 05:25:44,706 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-18 05:25:44,707 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 05:25:44,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 05:25:44,711 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:44,713 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-18 05:25:44,732 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,733 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,734 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,734 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,734 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,734 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,734 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,735 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,735 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,735 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,735 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,736 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,736 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,736 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,736 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,736 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,737 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,737 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,737 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,737 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,738 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:25:44,738 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,738 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:25:44,738 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,738 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:25:44,739 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,739 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:25:44,739 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,739 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,740 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,740 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,740 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,740 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,740 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,741 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,741 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,741 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,741 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,741 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,742 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,742 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:25:44,742 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,742 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:25:44,742 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,742 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:25:44,743 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,743 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:25:44,744 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:25:44,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 05:25:44 BoogieIcfgContainer [2021-12-18 05:25:44,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-18 05:25:44,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-18 05:25:44,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-18 05:25:44,866 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-18 05:25:44,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:25:18" (3/4) ... [2021-12-18 05:25:44,869 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-18 05:25:44,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-18 05:25:44,870 INFO L158 Benchmark]: Toolchain (without parser) took 29520.73ms. Allocated memory was 90.2MB in the beginning and 465.6MB in the end (delta: 375.4MB). Free memory was 53.9MB in the beginning and 143.2MB in the end (delta: -89.2MB). Peak memory consumption was 284.9MB. Max. memory is 16.1GB. [2021-12-18 05:25:44,870 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 47.1MB in the beginning and 47.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 05:25:44,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1130.15ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 53.7MB in the beginning and 71.2MB in the end (delta: -17.6MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2021-12-18 05:25:44,871 INFO L158 Benchmark]: Boogie Procedure Inliner took 152.47ms. Allocated memory is still 111.1MB. Free memory was 71.2MB in the beginning and 61.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-18 05:25:44,871 INFO L158 Benchmark]: Boogie Preprocessor took 92.27ms. Allocated memory is still 111.1MB. Free memory was 61.2MB in the beginning and 51.3MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-18 05:25:44,871 INFO L158 Benchmark]: RCFGBuilder took 1575.36ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 51.3MB in the beginning and 86.3MB in the end (delta: -35.0MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2021-12-18 05:25:44,872 INFO L158 Benchmark]: TraceAbstraction took 26556.73ms. Allocated memory was 182.5MB in the beginning and 465.6MB in the end (delta: 283.1MB). Free memory was 85.2MB in the beginning and 144.1MB in the end (delta: -58.9MB). Peak memory consumption was 224.0MB. Max. memory is 16.1GB. [2021-12-18 05:25:44,872 INFO L158 Benchmark]: Witness Printer took 3.75ms. Allocated memory is still 465.6MB. Free memory was 144.1MB in the beginning and 143.2MB in the end (delta: 974.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 05:25:44,874 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 90.2MB. Free memory was 47.1MB in the beginning and 47.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1130.15ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 53.7MB in the beginning and 71.2MB in the end (delta: -17.6MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 152.47ms. Allocated memory is still 111.1MB. Free memory was 71.2MB in the beginning and 61.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.27ms. Allocated memory is still 111.1MB. Free memory was 61.2MB in the beginning and 51.3MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1575.36ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 51.3MB in the beginning and 86.3MB in the end (delta: -35.0MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. * TraceAbstraction took 26556.73ms. Allocated memory was 182.5MB in the beginning and 465.6MB in the end (delta: 283.1MB). Free memory was 85.2MB in the beginning and 144.1MB in the end (delta: -58.9MB). Peak memory consumption was 224.0MB. Max. memory is 16.1GB. * Witness Printer took 3.75ms. Allocated memory is still 465.6MB. Free memory was 144.1MB in the beginning and 143.2MB in the end (delta: 974.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 4236]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 4030. Possible FailurePath: [L3355] int LDV_IN_INTERRUPT = 1; [L3356] struct block_device *virtblk_fops_group0 ; [L3357] int ldv_state_variable_2 ; [L3358] int ref_cnt ; [L3359] int ldv_state_variable_1 ; [L3360] struct virtio_device *virtio_blk_group0 ; [L3361] int ldv_state_variable_0 ; [L3492] static int major ; [L3493] static int index ; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4018-L4019] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4020-L4023] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4047] struct virtio_device_id const __mod_virtio_device_table ; [L4048] int ldv_retval_0 ; [L4049] int ldv_retval_1 ; [L4283] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4072] unsigned long ldvarg1 ; [L4073] fmode_t ldvarg3 ; [L4074] struct hd_geometry *ldvarg0 ; [L4075] void *tmp ; [L4076] unsigned int ldvarg2 ; [L4077] int tmp___0 ; [L4078] int tmp___1 ; [L4079] int tmp___2 ; [L4080] int tmp___3 ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg1={17:0}, ldvarg3={15:0}, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4082] CALL, EXPR ldv_init_zalloc(16UL) VAL [\old(size)=16, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3290] void *p ; [L3291] void *tmp ; [L3293] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=16, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, calloc(1UL, size)={-18446744073709551617:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, size=16, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3293] tmp = calloc(1UL, size) [L3294] p = tmp VAL [\old(size)=16, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, calloc(1UL, size)={-18446744073709551617:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, p={-18446744073709551617:0}, ref_cnt=0, size=16, tmp={-18446744073709551617:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3295] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3249] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, cond=1, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3295] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=16, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, calloc(1UL, size)={-18446744073709551617:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, p={-18446744073709551617:0}, ref_cnt=0, size=16, tmp={-18446744073709551617:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [\old(size)=16, \result={-18446744073709551617:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, calloc(1UL, size)={-18446744073709551617:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, p={-18446744073709551617:0}, ref_cnt=0, size=16, tmp={-18446744073709551617:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4082] RET, EXPR ldv_init_zalloc(16UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_init_zalloc(16UL)={-18446744073709551617:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg1={17:0}, ldvarg3={15:0}, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4082] tmp = ldv_init_zalloc(16UL) [L4083] ldvarg0 = (struct hd_geometry *)tmp [L4084] FCALL ldv_initialize() [L4085] CALL ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3301] void *tmp ; [L3303] EXPR, FCALL memset(s, c, n) [L3303] tmp = memset(s, c, n) [L3304] return (tmp); VAL [\old(c)=0, \old(n)=8, \result={17:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, c=0, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, n=8, ref_cnt=0, s={17:0}, s={17:0}, tmp={17:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4085] RET ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg1), 0, 8UL)={17:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={-18446744073709551617:0}, ldvarg1={17:0}, ldvarg3={15:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4086] CALL ldv_memset((void *)(& ldvarg3), 0, 4UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3301] void *tmp ; [L3303] EXPR, FCALL memset(s, c, n) [L3303] tmp = memset(s, c, n) [L3304] return (tmp); VAL [\old(c)=0, \old(n)=4, \result={15:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, c=0, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, n=4, ref_cnt=0, s={15:0}, s={15:0}, tmp={15:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4086] RET ldv_memset((void *)(& ldvarg3), 0, 4UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg3), 0, 4UL)={15:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={-18446744073709551617:0}, ldvarg1={17:0}, ldvarg3={15:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4087] ldvarg2 = __VERIFIER_nondet_ulong () [L4088] ldv_state_variable_1 = 0 [L4089] ref_cnt = 0 [L4090] ldv_state_variable_0 = 1 [L4091] ldv_state_variable_2 = 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={-18446744073709551617:0}, ldvarg1={17:0}, ldvarg2=1447184708, ldvarg3={15:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4093] tmp___0 = __VERIFIER_nondet_int() [L4095] case 0: [L4125] case 1: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={-18446744073709551617:0}, ldvarg1={17:0}, ldvarg2=1447184708, ldvarg3={15:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=1, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4126] COND TRUE ldv_state_variable_0 != 0 [L4127] tmp___2 = __VERIFIER_nondet_int() [L4129] case 0: [L4137] case 1: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={-18446744073709551617:0}, ldvarg1={17:0}, ldvarg2=1447184708, ldvarg3={15:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=1, tmp___2=1, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4138] COND TRUE ldv_state_variable_0 == 1 [L4139] CALL, EXPR init() [L4028] int tmp ; [L4030] CALL, EXPR register_blkdev(0U, "virtblk") [L4472] return __VERIFIER_nondet_int(); [L4030] RET, EXPR register_blkdev(0U, "virtblk") [L4030] major = register_blkdev(0U, "virtblk") [L4031] COND FALSE !(major < 0) [L4035] CALL, EXPR register_virtio_driver(& virtio_blk) [L4476] return __VERIFIER_nondet_int(); [L4035] RET, EXPR register_virtio_driver(& virtio_blk) [L4035] tmp = register_virtio_driver(& virtio_blk) [L4036] return (tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, major=19, ref_cnt=0, tmp=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4139] RET, EXPR init() [L4139] ldv_retval_1 = init() [L4140] COND TRUE ldv_retval_1 == 0 [L4141] ldv_state_variable_0 = 3 [L4142] ldv_state_variable_2 = 1 [L4143] CALL ldv_initialize_block_device_operations_2() [L4063] void *tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4065] CALL, EXPR ldv_init_zalloc(464UL) VAL [\old(size)=464, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3290] void *p ; [L3291] void *tmp ; [L3293] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=464, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, calloc(1UL, size)={-55340232221128654849:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=19, ref_cnt=0, size=464, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3293] tmp = calloc(1UL, size) [L3294] p = tmp VAL [\old(size)=464, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, calloc(1UL, size)={-55340232221128654849:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=19, p={-55340232221128654849:0}, ref_cnt=0, size=464, tmp={-55340232221128654849:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3295] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3249] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, cond=1, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3295] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=464, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, calloc(1UL, size)={-55340232221128654849:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=19, p={-55340232221128654849:0}, ref_cnt=0, size=464, tmp={-55340232221128654849:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [\old(size)=464, \result={-55340232221128654849:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, calloc(1UL, size)={-55340232221128654849:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=19, p={-55340232221128654849:0}, ref_cnt=0, size=464, tmp={-55340232221128654849:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4065] RET, EXPR ldv_init_zalloc(464UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_init_zalloc(464UL)={-55340232221128654849:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4065] tmp = ldv_init_zalloc(464UL) [L4066] virtblk_fops_group0 = (struct block_device *)tmp VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=19, ref_cnt=0, tmp={-55340232221128654849:0}, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4143] RET ldv_initialize_block_device_operations_2() [L4144] ldv_state_variable_1 = 1 [L4145] CALL ldv_initialize_virtio_driver_1() [L4054] void *tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4056] CALL, EXPR ldv_init_zalloc(1048UL) VAL [\old(size)=1048, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3290] void *p ; [L3291] void *tmp ; [L3293] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=1048, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, calloc(1UL, size)={-36893488147419103233:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, size=1048, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3293] tmp = calloc(1UL, size) [L3294] p = tmp VAL [\old(size)=1048, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, calloc(1UL, size)={-36893488147419103233:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, p={-36893488147419103233:0}, ref_cnt=0, size=1048, tmp={-36893488147419103233:0}, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3295] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3249] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, cond=1, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3295] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1048, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, calloc(1UL, size)={-36893488147419103233:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, p={-36893488147419103233:0}, ref_cnt=0, size=1048, tmp={-36893488147419103233:0}, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [\old(size)=1048, \result={-36893488147419103233:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, calloc(1UL, size)={-36893488147419103233:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, p={-36893488147419103233:0}, ref_cnt=0, size=1048, tmp={-36893488147419103233:0}, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4056] RET, EXPR ldv_init_zalloc(1048UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1048UL)={-36893488147419103233:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4056] tmp = ldv_init_zalloc(1048UL) [L4057] virtio_blk_group0 = (struct virtio_device *)tmp VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, tmp={-36893488147419103233:0}, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4145] RET ldv_initialize_virtio_driver_1() [L4148] COND FALSE !(ldv_retval_1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={-18446744073709551617:0}, ldvarg1={17:0}, ldvarg2=1447184708, ldvarg3={15:0}, major=19, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=1, tmp___2=1, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4093] tmp___0 = __VERIFIER_nondet_int() [L4095] case 0: [L4125] case 1: [L4163] case 2: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={-18446744073709551617:0}, ldvarg1={17:0}, ldvarg2=1447184708, ldvarg3={15:0}, major=19, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=2, tmp___2=1, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4164] COND TRUE ldv_state_variable_2 != 0 [L4165] tmp___3 = __VERIFIER_nondet_int() [L4167] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={-18446744073709551617:0}, ldvarg1={17:0}, ldvarg2=1447184708, ldvarg3={15:0}, major=19, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=2, tmp___2=1, tmp___3=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4168] COND TRUE ldv_state_variable_2 == 1 [L4169] EXPR \read(ldvarg3) [L4169] EXPR \read(ldvarg1) [L4169] CALL virtblk_ioctl(virtblk_fops_group0, ldvarg3, ldvarg2, ldvarg1) [L3756] struct gendisk *disk ; [L3757] struct virtio_blk *vblk ; [L3758] void *usr_data ; [L3759] char id_str[20U] ; [L3760] int err ; [L3761] int tmp ; [L3762] bool tmp___0 ; [L3763] int tmp___1 ; [L3764] int tmp___2 ; [L3766] EXPR bdev->bd_disk [L3766] disk = bdev->bd_disk [L3767] EXPR disk->private_data [L3767] vblk = (struct virtio_blk *)disk->private_data [L3768] COND TRUE cmd == 1447184708U [L3769] usr_data = (void *)data [L3770] CALL, EXPR virtblk_get_id(disk, (char *)(& id_str)) [L3723] struct virtio_blk *vblk ; [L3724] struct request *req ; [L3725] struct bio *bio ; [L3726] long tmp ; [L3727] long tmp___0 ; [L3728] long tmp___1 ; [L3729] long tmp___2 ; [L3730] int tmp___3 ; [L3732] EXPR disk->private_data [L3732] vblk = (struct virtio_blk *)disk->private_data [L3733] EXPR vblk->disk [L3733] EXPR (vblk->disk)->queue [L3733] CALL, EXPR bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4381] CALL, EXPR ldv_malloc(sizeof(struct bio)) VAL [\old(size)=112, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3254] void *p ; [L3255] void *tmp ; [L3256] int tmp___0 ; [L3258] tmp___0 = __VERIFIER_nondet_int() [L3259] COND TRUE tmp___0 != 0 [L3260] return ((void *)0); VAL [\old(size)=112, \result={0:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, size=112, tmp___0=1, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4381] RET, EXPR ldv_malloc(sizeof(struct bio)) VAL [\old(arg2)=20, \old(arg3)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, arg0={4294967298:4294967302}, arg0={4294967298:4294967302}, arg1={18:0}, arg1={18:0}, arg2=20, arg3=208, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct bio))={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4381] return ldv_malloc(sizeof(struct bio)); [L3733] RET, EXPR bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L3733] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L3734] CALL, EXPR IS_ERR((void const *)bio) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={0:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4216] bool tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={0:0}, ptr={0:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={0:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={0:0}, ptr={0:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={0:0}, ptr={0:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4218] tmp = ldv_is_err(ptr) [L4219] return ((long )tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={0:0}, ptr={0:0}, ref_cnt=0, tmp=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3734] RET, EXPR IS_ERR((void const *)bio) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, bio={0:0}, disk={4294967300:21}, disk={4294967300:21}, features={13:0}, id_str={18:0}, id_str={18:0}, id_table={12:0}, index=0, IS_ERR((void const *)bio)=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, vblk={-18446744073709549604:-3}, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3734] tmp___0 = IS_ERR((void const *)bio) [L3735] COND FALSE !(tmp___0 != 0L) [L3740] EXPR vblk->disk [L3740] EXPR (vblk->disk)->queue [L3740] CALL, EXPR ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4225] struct request *tmp ; [L4227] CALL, EXPR ldv_blk_make_request(ldv_func_arg3) [L4309] struct request *res ; [L4310] long tmp___0 ; VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, mask=208, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4312] COND FALSE !(ldv_blk_rq != 0) VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, mask=208, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4316] CALL, EXPR ldv_malloc(sizeof(struct request)) VAL [\old(size)=322, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3254] void *p ; [L3255] void *tmp ; [L3256] int tmp___0 ; [L3258] tmp___0 = __VERIFIER_nondet_int() [L3259] COND FALSE !(tmp___0 != 0) [L3262] tmp = malloc(size) [L3263] p = tmp VAL [\old(size)=322, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, p={-18446744073709549604:0}, ref_cnt=0, size=322, tmp={-18446744073709549604:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3264] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3249] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, cond=1, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3264] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=322, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, p={-18446744073709549604:0}, ref_cnt=0, size=322, tmp={-18446744073709549604:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3265] CALL, EXPR IS_ERR(p) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4216] bool tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4218] tmp = ldv_is_err(ptr) [L4219] return ((long )tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, tmp=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3265] RET, EXPR IS_ERR(p) VAL [\old(size)=322, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, IS_ERR(p)=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, p={-18446744073709549604:0}, ref_cnt=0, size=322, tmp={-18446744073709549604:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3265] CALL assume_abort_if_not(IS_ERR(p) == 0) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3249] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, cond=1, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3265] RET assume_abort_if_not(IS_ERR(p) == 0) VAL [\old(size)=322, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, IS_ERR(p)=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, p={-18446744073709549604:0}, ref_cnt=0, size=322, tmp={-18446744073709549604:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3266] return (p); VAL [\old(size)=322, \result={-18446744073709549604:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, p={-18446744073709549604:0}, ref_cnt=0, size=322, tmp={-18446744073709549604:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4316] RET, EXPR ldv_malloc(sizeof(struct request)) VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct request))={-18446744073709549604:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, mask=208, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4316] res = ldv_malloc(sizeof(struct request)) [L4317] COND FALSE !((unsigned long )res == (unsigned long )((struct request *)0)) VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, mask=208, ref_cnt=0, res={-18446744073709549604:0}, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4321] CALL, EXPR IS_ERR___0((void const *)res) [L4277] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4279] CALL, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [\old(c)=0, \old(exp)=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3333] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, c=0, exp=0, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4279] RET, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L)=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4279] tmp = ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) [L4280] return (tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, tmp=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4321] RET, EXPR IS_ERR___0((void const *)res) [L4321] tmp___0 = IS_ERR___0((void const *)res) [L4322] COND TRUE tmp___0 == 0L [L4323] ldv_blk_rq = 1 VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, mask=208, ref_cnt=0, res={-18446744073709549604:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4326] return (res); VAL [\old(mask)=208, \result={-18446744073709549604:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, mask=208, ref_cnt=0, res={-18446744073709549604:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4227] RET, EXPR ldv_blk_make_request(ldv_func_arg3) [L4227] tmp = ldv_blk_make_request(ldv_func_arg3) [L4228] return (tmp); VAL [\old(ldv_func_arg3)=208, \result={-18446744073709549604:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, ldv_func_arg1={4294967298:4294967302}, ldv_func_arg1={4294967298:4294967302}, ldv_func_arg2={0:0}, ldv_func_arg2={0:0}, ldv_func_arg3=208, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, tmp={-18446744073709549604:0}, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3740] RET, EXPR ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L3740] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L3741] CALL, EXPR IS_ERR((void const *)req) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4216] bool tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4218] tmp = ldv_is_err(ptr) [L4219] return ((long )tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ptr={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, tmp=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3741] RET, EXPR IS_ERR((void const *)req) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, bio={0:0}, disk={4294967300:21}, disk={4294967300:21}, features={13:0}, id_str={18:0}, id_str={18:0}, id_table={12:0}, index=0, IS_ERR((void const *)req)=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, req={-18446744073709549604:0}, tmp___0=0, vblk={-18446744073709549604:-3}, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3741] tmp___2 = IS_ERR((void const *)req) [L3742] COND FALSE !(tmp___2 != 0L) [L3748] req->cmd_type = 7 [L3749] EXPR vblk->disk [L3749] EXPR (vblk->disk)->queue [L3749] EXPR vblk->disk [L3749] CALL, EXPR blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L4391] return __VERIFIER_nondet_int(); [L3749] RET, EXPR blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3749] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3750] return (tmp___3); VAL [\result=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, bio={0:0}, disk={4294967300:21}, disk={4294967300:21}, features={13:0}, id_str={18:0}, id_str={18:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, req={-18446744073709549604:0}, tmp___0=0, tmp___2=0, tmp___3=1, vblk={-18446744073709549604:-3}, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3770] RET, EXPR virtblk_get_id(disk, (char *)(& id_str)) [L3770] err = virtblk_get_id(disk, (char *)(& id_str)) [L3771] COND FALSE !(err == 0) VAL [\old(cmd)=1447184708, \old(data)=0, \old(mode)=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, bdev={-55340232221128654849:0}, bdev={-55340232221128654849:0}, cmd=1447184708, data=0, disk={4294967300:21}, err=1, features={13:0}, id_str={18:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, mode=0, ref_cnt=0, usr_data={0:0}, vblk={-18446744073709549604:-3}, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L3779] return (err); [L3779] return (err); VAL [\old(cmd)=1447184708, \old(data)=0, \old(mode)=0, \result=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, bdev={-55340232221128654849:0}, bdev={-55340232221128654849:0}, cmd=1447184708, data=0, disk={4294967300:21}, err=1, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, mode=0, ref_cnt=0, usr_data={0:0}, vblk={-18446744073709549604:-3}, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4169] RET virtblk_ioctl(virtblk_fops_group0, ldvarg3, ldvarg2, ldvarg1) [L4170] ldv_state_variable_2 = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={-18446744073709551617:0}, ldvarg1={17:0}, ldvarg2=1447184708, ldvarg3={15:0}, major=19, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=2, tmp___2=1, tmp___3=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4093] tmp___0 = __VERIFIER_nondet_int() [L4095] case 0: [L4125] case 1: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={-18446744073709551617:0}, ldvarg1={17:0}, ldvarg2=1447184708, ldvarg3={15:0}, major=19, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=1, tmp___2=1, tmp___3=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4126] COND TRUE ldv_state_variable_0 != 0 [L4127] tmp___2 = __VERIFIER_nondet_int() [L4129] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={-18446744073709551617:0}, ldvarg1={17:0}, ldvarg2=1447184708, ldvarg3={15:0}, major=19, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=1, tmp___2=0, tmp___3=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4130] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L4131] CALL fini() [L4042] FCALL unregister_blkdev((unsigned int )major, "virtblk") [L4043] FCALL unregister_virtio_driver(& virtio_blk) [L4131] RET fini() [L4132] ldv_state_variable_0 = 2 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={-18446744073709551617:0}, ldvarg1={17:0}, ldvarg2=1447184708, ldvarg3={15:0}, major=19, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=1, tmp___2=0, tmp___3=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4194] CALL ldv_check_final_state() [L4343] COND TRUE ldv_blk_rq != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4344] CALL ldv_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] [L4236] reach_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967296:4294967301}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, major=19, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={-55340232221128654849:0}, virtio_blk={14:0}, virtio_blk_group0={-36893488147419103233:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 459 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.3s, OverallIterations: 10, TraceHistogramMax: 12, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7008 SdHoareTripleChecker+Valid, 10.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6627 mSDsluCounter, 30420 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25255 mSDsCounter, 4486 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10357 IncrementalHoareTripleChecker+Invalid, 14843 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4486 mSolverCounterUnsat, 5165 mSDtfsCounter, 10357 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1663 GetRequests, 1503 SyntacticMatches, 2 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 908 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3047occurred in iteration=9, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 8698 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 2133 NumberOfCodeBlocks, 2133 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2472 ConstructedInterpolants, 0 QuantifiedInterpolants, 3767 SizeOfPredicates, 15 NumberOfNonLiveVariables, 5215 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 1494/1682 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-18 05:25:44,951 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-tmp.no-commuhash-c3fed41 [2021-12-18 05:25:46,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 05:25:46,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 05:25:46,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 05:25:46,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 05:25:46,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 05:25:46,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 05:25:46,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 05:25:46,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 05:25:46,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 05:25:46,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 05:25:46,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 05:25:46,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 05:25:46,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 05:25:46,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 05:25:46,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 05:25:46,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 05:25:46,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 05:25:46,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 05:25:46,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 05:25:46,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 05:25:46,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 05:25:46,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 05:25:46,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 05:25:46,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 05:25:46,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 05:25:46,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 05:25:46,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 05:25:46,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 05:25:46,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 05:25:46,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 05:25:46,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 05:25:46,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 05:25:46,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 05:25:46,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 05:25:46,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 05:25:46,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 05:25:46,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 05:25:46,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 05:25:46,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 05:25:46,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 05:25:46,871 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-18 05:25:46,901 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 05:25:46,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 05:25:46,902 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 05:25:46,902 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 05:25:46,903 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 05:25:46,903 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 05:25:46,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 05:25:46,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 05:25:46,904 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 05:25:46,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 05:25:46,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 05:25:46,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 05:25:46,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 05:25:46,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 05:25:46,905 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-18 05:25:46,906 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-18 05:25:46,906 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-18 05:25:46,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 05:25:46,906 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 05:25:46,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 05:25:46,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 05:25:46,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 05:25:46,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 05:25:46,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 05:25:46,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 05:25:46,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 05:25:46,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 05:25:46,914 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-18 05:25:46,915 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-18 05:25:46,915 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 05:25:46,915 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 05:25:46,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 05:25:46,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 05:25:46,915 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-18 05:25:46,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8946ad2f029076f7c4f90de60a8c48e069f80fec06a0c6d7a5dc3a1fc4182879 [2021-12-18 05:25:47,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 05:25:47,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 05:25:47,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 05:25:47,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 05:25:47,247 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 05:25:47,249 INFO L432 ainManager$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 [2021-12-18 05:25:47,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e78352ab2/0fb037455bbe49249999ce244ea05633/FLAG9f77291a8 [2021-12-18 05:25:47,975 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 05:25:47,976 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 [2021-12-18 05:25:48,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e78352ab2/0fb037455bbe49249999ce244ea05633/FLAG9f77291a8 [2021-12-18 05:25:48,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e78352ab2/0fb037455bbe49249999ce244ea05633 [2021-12-18 05:25:48,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 05:25:48,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 05:25:48,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 05:25:48,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 05:25:48,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 05:25:48,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:25:48" (1/1) ... [2021-12-18 05:25:48,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d0b426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:48, skipping insertion in model container [2021-12-18 05:25:48,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:25:48" (1/1) ... [2021-12-18 05:25:48,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 05:25:48,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 05:25:49,081 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] [2021-12-18 05:25:49,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:25:49,121 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-18 05:25:49,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 05:25:49,340 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] [2021-12-18 05:25:49,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:25:49,354 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 05:25:49,514 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] [2021-12-18 05:25:49,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:25:49,580 INFO L208 MainTranslator]: Completed translation [2021-12-18 05:25:49,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:49 WrapperNode [2021-12-18 05:25:49,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 05:25:49,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 05:25:49,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 05:25:49,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 05:25:49,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:49" (1/1) ... [2021-12-18 05:25:49,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:49" (1/1) ... [2021-12-18 05:25:49,702 INFO L137 Inliner]: procedures = 149, calls = 521, calls flagged for inlining = 83, calls inlined = 83, statements flattened = 1605 [2021-12-18 05:25:49,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 05:25:49,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 05:25:49,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 05:25:49,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 05:25:49,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:49" (1/1) ... [2021-12-18 05:25:49,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:49" (1/1) ... [2021-12-18 05:25:49,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:49" (1/1) ... [2021-12-18 05:25:49,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:49" (1/1) ... [2021-12-18 05:25:49,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:49" (1/1) ... [2021-12-18 05:25:49,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:49" (1/1) ... [2021-12-18 05:25:49,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:49" (1/1) ... [2021-12-18 05:25:49,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 05:25:49,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 05:25:49,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 05:25:49,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 05:25:49,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:49" (1/1) ... [2021-12-18 05:25:49,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 05:25:49,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:25:49,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 05:25:49,907 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 [2021-12-18 05:25:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2021-12-18 05:25:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2021-12-18 05:25:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-18 05:25:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-18 05:25:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-18 05:25:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2021-12-18 05:25:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2021-12-18 05:25:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-18 05:25:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 05:25:49,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 05:25:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 05:25:49,924 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 05:25:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2021-12-18 05:25:49,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2021-12-18 05:25:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2021-12-18 05:25:49,925 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2021-12-18 05:25:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 05:25:49,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 05:25:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2021-12-18 05:25:49,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2021-12-18 05:25:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2021-12-18 05:25:49,926 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2021-12-18 05:25:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 05:25:49,926 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 05:25:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 05:25:49,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 05:25:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 05:25:49,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 05:25:49,927 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2021-12-18 05:25:49,927 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2021-12-18 05:25:49,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 05:25:49,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 05:25:49,928 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 05:25:49,928 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 05:25:49,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 05:25:49,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 05:25:49,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 05:25:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 05:25:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 05:25:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 05:25:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2021-12-18 05:25:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2021-12-18 05:25:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 05:25:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 05:25:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 05:25:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 05:25:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2021-12-18 05:25:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2021-12-18 05:25:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2021-12-18 05:25:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2021-12-18 05:25:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 05:25:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-18 05:25:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-18 05:25:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 05:25:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 05:25:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-18 05:25:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-18 05:25:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-18 05:25:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 05:25:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-18 05:25:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 05:25:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-18 05:25:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-18 05:25:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-12-18 05:25:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-12-18 05:25:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2021-12-18 05:25:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2021-12-18 05:25:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 05:25:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 05:25:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 05:25:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 05:25:50,390 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 05:25:50,391 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 05:25:53,856 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 05:25:55,807 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 05:25:55,828 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 05:25:55,830 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 05:25:55,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:25:55 BoogieIcfgContainer [2021-12-18 05:25:55,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 05:25:55,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 05:25:55,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 05:25:55,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 05:25:55,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 05:25:48" (1/3) ... [2021-12-18 05:25:55,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c1a5eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:25:55, skipping insertion in model container [2021-12-18 05:25:55,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:25:49" (2/3) ... [2021-12-18 05:25:55,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c1a5eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:25:55, skipping insertion in model container [2021-12-18 05:25:55,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:25:55" (3/3) ... [2021-12-18 05:25:55,840 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-18 05:25:55,845 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 05:25:55,845 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 05:25:55,894 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 05:25:55,903 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 [2021-12-18 05:25:55,904 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 05:25:55,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 457 states, 346 states have (on average 1.2919075144508672) internal successors, (447), 358 states have internal predecessors, (447), 84 states have call successors, (84), 26 states have call predecessors, (84), 25 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2021-12-18 05:25:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-18 05:25:55,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:55,940 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:55,941 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:55,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:55,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1119521097, now seen corresponding path program 1 times [2021-12-18 05:25:55,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:25:55,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119097005] [2021-12-18 05:25:55,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:55,961 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:25:55,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:25:55,971 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) [2021-12-18 05:25:56,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-18 05:25:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:56,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-18 05:25:56,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:25:56,454 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-18 05:25:56,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:25:56,455 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:25:56,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119097005] [2021-12-18 05:25:56,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119097005] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:25:56,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:25:56,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 05:25:56,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346000903] [2021-12-18 05:25:56,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:25:56,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-18 05:25:56,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:25:56,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-18 05:25:56,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-18 05:25:56,484 INFO L87 Difference]: Start difference. First operand has 457 states, 346 states have (on average 1.2919075144508672) internal successors, (447), 358 states have internal predecessors, (447), 84 states have call successors, (84), 26 states have call predecessors, (84), 25 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 05:25:56,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:25:56,616 INFO L93 Difference]: Finished difference Result 909 states and 1235 transitions. [2021-12-18 05:25:56,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-18 05:25:56,619 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2021-12-18 05:25:56,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:25:56,634 INFO L225 Difference]: With dead ends: 909 [2021-12-18 05:25:56,634 INFO L226 Difference]: Without dead ends: 439 [2021-12-18 05:25:56,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-18 05:25:56,648 INFO L933 BasicCegarLoop]: 605 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:25:56,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 05:25:56,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-12-18 05:25:56,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2021-12-18 05:25:56,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 335 states have (on average 1.2597014925373133) internal successors, (422), 340 states have internal predecessors, (422), 79 states have call successors, (79), 25 states have call predecessors, (79), 24 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2021-12-18 05:25:56,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 578 transitions. [2021-12-18 05:25:56,729 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 578 transitions. Word has length 46 [2021-12-18 05:25:56,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:25:56,729 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 578 transitions. [2021-12-18 05:25:56,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 05:25:56,730 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 578 transitions. [2021-12-18 05:25:56,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-18 05:25:56,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:56,732 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:56,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-18 05:25:56,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:25:56,956 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:56,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:56,957 INFO L85 PathProgramCache]: Analyzing trace with hash 275515595, now seen corresponding path program 1 times [2021-12-18 05:25:56,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:25:56,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496076261] [2021-12-18 05:25:56,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:56,958 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:25:56,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:25:56,959 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:25:56,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-18 05:25:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:57,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-18 05:25:57,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:25:57,471 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 05:25:57,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:25:57,472 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:25:57,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496076261] [2021-12-18 05:25:57,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496076261] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:25:57,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:25:57,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 05:25:57,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523893840] [2021-12-18 05:25:57,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:25:57,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 05:25:57,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:25:57,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 05:25:57,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 05:25:57,482 INFO L87 Difference]: Start difference. First operand 439 states and 578 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 05:25:57,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:25:57,598 INFO L93 Difference]: Finished difference Result 876 states and 1154 transitions. [2021-12-18 05:25:57,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 05:25:57,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2021-12-18 05:25:57,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:25:57,603 INFO L225 Difference]: With dead ends: 876 [2021-12-18 05:25:57,603 INFO L226 Difference]: Without dead ends: 440 [2021-12-18 05:25:57,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 05:25:57,606 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 3 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:25:57,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 1723 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 05:25:57,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-12-18 05:25:57,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2021-12-18 05:25:57,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 336 states have (on average 1.2589285714285714) internal successors, (423), 341 states have internal predecessors, (423), 79 states have call successors, (79), 25 states have call predecessors, (79), 24 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2021-12-18 05:25:57,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 579 transitions. [2021-12-18 05:25:57,646 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 579 transitions. Word has length 46 [2021-12-18 05:25:57,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:25:57,647 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 579 transitions. [2021-12-18 05:25:57,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-18 05:25:57,648 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 579 transitions. [2021-12-18 05:25:57,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-18 05:25:57,649 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:57,649 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:57,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-18 05:25:57,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:25:57,868 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:57,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash 204883235, now seen corresponding path program 1 times [2021-12-18 05:25:57,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:25:57,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049003277] [2021-12-18 05:25:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:57,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:25:57,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:25:57,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:25:57,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-18 05:25:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:25:58,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-18 05:25:58,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:25:58,382 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-18 05:25:58,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:25:58,668 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-18 05:25:58,669 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:25:58,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049003277] [2021-12-18 05:25:58,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2049003277] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:25:58,670 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 05:25:58,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-18 05:25:58,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006848180] [2021-12-18 05:25:58,670 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 05:25:58,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 05:25:58,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:25:58,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 05:25:58,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 05:25:58,672 INFO L87 Difference]: Start difference. First operand 440 states and 579 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-18 05:25:58,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:25:58,980 INFO L93 Difference]: Finished difference Result 887 states and 1169 transitions. [2021-12-18 05:25:58,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 05:25:58,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 48 [2021-12-18 05:25:58,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:25:58,985 INFO L225 Difference]: With dead ends: 887 [2021-12-18 05:25:58,986 INFO L226 Difference]: Without dead ends: 450 [2021-12-18 05:25:58,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-12-18 05:25:58,990 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 19 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:25:58,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 1726 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 05:25:58,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2021-12-18 05:25:59,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2021-12-18 05:25:59,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 345 states have (on average 1.2608695652173914) internal successors, (435), 350 states have internal predecessors, (435), 79 states have call successors, (79), 26 states have call predecessors, (79), 25 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2021-12-18 05:25:59,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 591 transitions. [2021-12-18 05:25:59,023 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 591 transitions. Word has length 48 [2021-12-18 05:25:59,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:25:59,023 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 591 transitions. [2021-12-18 05:25:59,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-18 05:25:59,024 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 591 transitions. [2021-12-18 05:25:59,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-18 05:25:59,031 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:59,031 INFO L514 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:59,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-18 05:25:59,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:25:59,252 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:59,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:59,252 INFO L85 PathProgramCache]: Analyzing trace with hash 647289995, now seen corresponding path program 2 times [2021-12-18 05:25:59,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:25:59,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622213146] [2021-12-18 05:25:59,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:25:59,253 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:25:59,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:25:59,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:25:59,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-18 05:25:59,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-18 05:25:59,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:25:59,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 05:25:59,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:25:59,639 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-18 05:25:59,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:25:59,640 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:25:59,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622213146] [2021-12-18 05:25:59,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622213146] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:25:59,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:25:59,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 05:25:59,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594171578] [2021-12-18 05:25:59,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:25:59,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 05:25:59,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:25:59,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 05:25:59,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:25:59,643 INFO L87 Difference]: Start difference. First operand 450 states and 591 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-18 05:25:59,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:25:59,730 INFO L93 Difference]: Finished difference Result 1273 states and 1682 transitions. [2021-12-18 05:25:59,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 05:25:59,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2021-12-18 05:25:59,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:25:59,736 INFO L225 Difference]: With dead ends: 1273 [2021-12-18 05:25:59,736 INFO L226 Difference]: Without dead ends: 848 [2021-12-18 05:25:59,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:25:59,738 INFO L933 BasicCegarLoop]: 649 mSDtfsCounter, 527 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:25:59,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [527 Valid, 1210 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 05:25:59,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2021-12-18 05:25:59,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 845. [2021-12-18 05:25:59,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 649 states have (on average 1.263482280431433) internal successors, (820), 658 states have internal predecessors, (820), 149 states have call successors, (149), 47 states have call predecessors, (149), 46 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2021-12-18 05:25:59,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1116 transitions. [2021-12-18 05:25:59,771 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1116 transitions. Word has length 52 [2021-12-18 05:25:59,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:25:59,771 INFO L470 AbstractCegarLoop]: Abstraction has 845 states and 1116 transitions. [2021-12-18 05:25:59,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-18 05:25:59,772 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1116 transitions. [2021-12-18 05:25:59,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-18 05:25:59,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:25:59,773 INFO L514 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:25:59,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-18 05:25:59,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:25:59,988 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:25:59,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:25:59,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1975753054, now seen corresponding path program 1 times [2021-12-18 05:25:59,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:25:59,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247128340] [2021-12-18 05:25:59,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:25:59,989 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:25:59,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:25:59,990 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:25:59,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-18 05:26:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:26:00,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-18 05:26:00,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:26:00,507 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-18 05:26:00,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:26:01,116 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 05:26:01,116 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:26:01,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1247128340] [2021-12-18 05:26:01,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1247128340] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:26:01,117 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 05:26:01,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-12-18 05:26:01,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050679020] [2021-12-18 05:26:01,117 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 05:26:01,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-18 05:26:01,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:26:01,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-18 05:26:01,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-18 05:26:01,118 INFO L87 Difference]: Start difference. First operand 845 states and 1116 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-18 05:26:01,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:26:01,800 INFO L93 Difference]: Finished difference Result 1693 states and 2238 transitions. [2021-12-18 05:26:01,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 05:26:01,802 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55 [2021-12-18 05:26:01,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:26:01,809 INFO L225 Difference]: With dead ends: 1693 [2021-12-18 05:26:01,809 INFO L226 Difference]: Without dead ends: 857 [2021-12-18 05:26:01,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2021-12-18 05:26:01,813 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 56 mSDsluCounter, 4026 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4605 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-18 05:26:01,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 4605 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-18 05:26:01,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2021-12-18 05:26:01,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 851. [2021-12-18 05:26:01,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 655 states have (on average 1.2625954198473281) internal successors, (827), 664 states have internal predecessors, (827), 149 states have call successors, (149), 47 states have call predecessors, (149), 46 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2021-12-18 05:26:01,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1123 transitions. [2021-12-18 05:26:01,860 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1123 transitions. Word has length 55 [2021-12-18 05:26:01,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:26:01,861 INFO L470 AbstractCegarLoop]: Abstraction has 851 states and 1123 transitions. [2021-12-18 05:26:01,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-18 05:26:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1123 transitions. [2021-12-18 05:26:01,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-18 05:26:01,862 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:26:01,862 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:26:01,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-18 05:26:02,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:26:02,078 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:26:02,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:26:02,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1015347678, now seen corresponding path program 2 times [2021-12-18 05:26:02,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:26:02,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944119327] [2021-12-18 05:26:02,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:26:02,080 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:26:02,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:26:02,081 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:26:02,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-18 05:26:02,364 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-18 05:26:02,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:26:02,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 05:26:02,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:26:02,517 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-18 05:26:02,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:26:02,518 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:26:02,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944119327] [2021-12-18 05:26:02,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944119327] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:26:02,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:26:02,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 05:26:02,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540436256] [2021-12-18 05:26:02,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:26:02,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 05:26:02,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:26:02,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 05:26:02,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:26:02,519 INFO L87 Difference]: Start difference. First operand 851 states and 1123 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-18 05:26:02,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:26:02,567 INFO L93 Difference]: Finished difference Result 1655 states and 2187 transitions. [2021-12-18 05:26:02,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 05:26:02,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2021-12-18 05:26:02,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:26:02,575 INFO L225 Difference]: With dead ends: 1655 [2021-12-18 05:26:02,575 INFO L226 Difference]: Without dead ends: 1646 [2021-12-18 05:26:02,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:26:02,577 INFO L933 BasicCegarLoop]: 660 mSDtfsCounter, 529 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:26:02,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 1207 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 05:26:02,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2021-12-18 05:26:02,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1646. [2021-12-18 05:26:02,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 1266 states have (on average 1.2622432859399684) internal successors, (1598), 1283 states have internal predecessors, (1598), 289 states have call successors, (289), 91 states have call predecessors, (289), 90 states have return successors, (287), 287 states have call predecessors, (287), 287 states have call successors, (287) [2021-12-18 05:26:02,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2174 transitions. [2021-12-18 05:26:02,655 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2174 transitions. Word has length 59 [2021-12-18 05:26:02,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:26:02,655 INFO L470 AbstractCegarLoop]: Abstraction has 1646 states and 2174 transitions. [2021-12-18 05:26:02,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-18 05:26:02,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2174 transitions. [2021-12-18 05:26:02,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-18 05:26:02,658 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:26:02,659 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:26:02,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-18 05:26:02,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:26:02,873 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:26:02,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:26:02,874 INFO L85 PathProgramCache]: Analyzing trace with hash -636118632, now seen corresponding path program 1 times [2021-12-18 05:26:02,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:26:02,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406391714] [2021-12-18 05:26:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:26:02,875 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:26:02,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:26:02,876 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:26:02,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-18 05:26:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:26:03,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 05:26:03,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:26:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-18 05:26:03,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 05:26:04,057 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-18 05:26:04,058 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:26:04,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406391714] [2021-12-18 05:26:04,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406391714] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 05:26:04,058 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 05:26:04,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-12-18 05:26:04,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093628234] [2021-12-18 05:26:04,059 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 05:26:04,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 05:26:04,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:26:04,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 05:26:04,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:26:04,061 INFO L87 Difference]: Start difference. First operand 1646 states and 2174 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 05:26:04,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:26:04,304 INFO L93 Difference]: Finished difference Result 3268 states and 4318 transitions. [2021-12-18 05:26:04,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 05:26:04,305 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 120 [2021-12-18 05:26:04,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:26:04,313 INFO L225 Difference]: With dead ends: 3268 [2021-12-18 05:26:04,313 INFO L226 Difference]: Without dead ends: 1646 [2021-12-18 05:26:04,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-12-18 05:26:04,318 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 28 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:26:04,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 2869 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 05:26:04,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2021-12-18 05:26:04,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1646. [2021-12-18 05:26:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 1266 states have (on average 1.2590837282780412) internal successors, (1594), 1283 states have internal predecessors, (1594), 289 states have call successors, (289), 91 states have call predecessors, (289), 90 states have return successors, (287), 287 states have call predecessors, (287), 287 states have call successors, (287) [2021-12-18 05:26:04,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2170 transitions. [2021-12-18 05:26:04,372 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2170 transitions. Word has length 120 [2021-12-18 05:26:04,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:26:04,372 INFO L470 AbstractCegarLoop]: Abstraction has 1646 states and 2170 transitions. [2021-12-18 05:26:04,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 05:26:04,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2170 transitions. [2021-12-18 05:26:04,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-18 05:26:04,375 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:26:04,375 INFO L514 BasicCegarLoop]: trace histogram [12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:26:04,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-12-18 05:26:04,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:26:04,596 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:26:04,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:26:04,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1966175016, now seen corresponding path program 2 times [2021-12-18 05:26:04,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:26:04,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471058435] [2021-12-18 05:26:04,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 05:26:04,597 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:26:04,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:26:04,598 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:26:04,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-18 05:26:05,553 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 05:26:05,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 05:26:05,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 05:26:05,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:26:05,756 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-12-18 05:26:05,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:26:05,756 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:26:05,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471058435] [2021-12-18 05:26:05,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471058435] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:26:05,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:26:05,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 05:26:05,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047902446] [2021-12-18 05:26:05,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:26:05,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 05:26:05,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:26:05,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 05:26:05,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:26:05,758 INFO L87 Difference]: Start difference. First operand 1646 states and 2170 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 05:26:05,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:26:05,908 INFO L93 Difference]: Finished difference Result 4655 states and 6134 transitions. [2021-12-18 05:26:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 05:26:05,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 122 [2021-12-18 05:26:05,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:26:05,925 INFO L225 Difference]: With dead ends: 4655 [2021-12-18 05:26:05,925 INFO L226 Difference]: Without dead ends: 3040 [2021-12-18 05:26:05,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:26:05,932 INFO L933 BasicCegarLoop]: 654 mSDtfsCounter, 485 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:26:05,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 1206 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 05:26:05,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3040 states. [2021-12-18 05:26:06,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3040 to 3032. [2021-12-18 05:26:06,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3032 states, 2320 states have (on average 1.2577586206896552) internal successors, (2918), 2353 states have internal predecessors, (2918), 535 states have call successors, (535), 177 states have call predecessors, (535), 176 states have return successors, (533), 533 states have call predecessors, (533), 533 states have call successors, (533) [2021-12-18 05:26:06,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3032 states to 3032 states and 3986 transitions. [2021-12-18 05:26:06,058 INFO L78 Accepts]: Start accepts. Automaton has 3032 states and 3986 transitions. Word has length 122 [2021-12-18 05:26:06,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:26:06,059 INFO L470 AbstractCegarLoop]: Abstraction has 3032 states and 3986 transitions. [2021-12-18 05:26:06,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-18 05:26:06,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3032 states and 3986 transitions. [2021-12-18 05:26:06,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-18 05:26:06,066 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:26:06,067 INFO L514 BasicCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:26:06,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-12-18 05:26:06,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:26:06,268 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:26:06,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:26:06,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1914519532, now seen corresponding path program 1 times [2021-12-18 05:26:06,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:26:06,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177756334] [2021-12-18 05:26:06,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:26:06,269 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:26:06,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:26:06,270 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:26:06,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-18 05:26:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:26:06,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 05:26:06,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:26:07,109 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-18 05:26:07,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:26:07,110 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:26:07,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177756334] [2021-12-18 05:26:07,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177756334] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:26:07,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:26:07,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 05:26:07,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486851573] [2021-12-18 05:26:07,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:26:07,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 05:26:07,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:26:07,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 05:26:07,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 05:26:07,111 INFO L87 Difference]: Start difference. First operand 3032 states and 3986 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 05:26:07,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:26:07,255 INFO L93 Difference]: Finished difference Result 6040 states and 7951 transitions. [2021-12-18 05:26:07,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 05:26:07,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 165 [2021-12-18 05:26:07,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:26:07,278 INFO L225 Difference]: With dead ends: 6040 [2021-12-18 05:26:07,278 INFO L226 Difference]: Without dead ends: 3043 [2021-12-18 05:26:07,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 05:26:07,292 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 10 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:26:07,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 1727 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 05:26:07,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2021-12-18 05:26:07,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 3035. [2021-12-18 05:26:07,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3035 states, 2323 states have (on average 1.256564786913474) internal successors, (2919), 2356 states have internal predecessors, (2919), 535 states have call successors, (535), 177 states have call predecessors, (535), 176 states have return successors, (533), 533 states have call predecessors, (533), 533 states have call successors, (533) [2021-12-18 05:26:07,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 3987 transitions. [2021-12-18 05:26:07,412 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 3987 transitions. Word has length 165 [2021-12-18 05:26:07,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:26:07,413 INFO L470 AbstractCegarLoop]: Abstraction has 3035 states and 3987 transitions. [2021-12-18 05:26:07,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 05:26:07,413 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 3987 transitions. [2021-12-18 05:26:07,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-12-18 05:26:07,418 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:26:07,419 INFO L514 BasicCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:26:07,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-12-18 05:26:07,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:26:07,633 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:26:07,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:26:07,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1601551212, now seen corresponding path program 1 times [2021-12-18 05:26:07,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:26:07,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667807921] [2021-12-18 05:26:07,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:26:07,635 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:26:07,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:26:07,636 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:26:07,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-18 05:26:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:26:08,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 05:26:08,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:26:08,470 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-12-18 05:26:08,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:26:08,470 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 05:26:08,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667807921] [2021-12-18 05:26:08,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667807921] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:26:08,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:26:08,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 05:26:08,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195693323] [2021-12-18 05:26:08,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:26:08,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 05:26:08,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 05:26:08,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 05:26:08,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 05:26:08,472 INFO L87 Difference]: Start difference. First operand 3035 states and 3987 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 05:26:08,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:26:08,619 INFO L93 Difference]: Finished difference Result 6049 states and 8005 transitions. [2021-12-18 05:26:08,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 05:26:08,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 166 [2021-12-18 05:26:08,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:26:08,640 INFO L225 Difference]: With dead ends: 6049 [2021-12-18 05:26:08,641 INFO L226 Difference]: Without dead ends: 3051 [2021-12-18 05:26:08,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 05:26:08,654 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 0 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:26:08,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2301 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 05:26:08,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2021-12-18 05:26:08,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 3039. [2021-12-18 05:26:08,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3039 states, 2325 states have (on average 1.2563440860215054) internal successors, (2921), 2360 states have internal predecessors, (2921), 535 states have call successors, (535), 177 states have call predecessors, (535), 178 states have return successors, (549), 533 states have call predecessors, (549), 533 states have call successors, (549) [2021-12-18 05:26:08,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3039 states to 3039 states and 4005 transitions. [2021-12-18 05:26:08,798 INFO L78 Accepts]: Start accepts. Automaton has 3039 states and 4005 transitions. Word has length 166 [2021-12-18 05:26:08,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:26:08,799 INFO L470 AbstractCegarLoop]: Abstraction has 3039 states and 4005 transitions. [2021-12-18 05:26:08,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-18 05:26:08,800 INFO L276 IsEmpty]: Start isEmpty. Operand 3039 states and 4005 transitions. [2021-12-18 05:26:08,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-18 05:26:08,805 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:26:08,806 INFO L514 BasicCegarLoop]: trace histogram [12, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:26:08,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-12-18 05:26:09,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:26:09,031 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:26:09,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:26:09,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1476408975, now seen corresponding path program 1 times [2021-12-18 05:26:09,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 05:26:09,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589556375] [2021-12-18 05:26:09,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:26:09,033 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 05:26:09,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 05:26:09,034 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 05:26:09,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-18 05:26:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 05:26:14,076 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-18 05:26:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 05:26:19,300 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-18 05:26:19,300 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-18 05:26:19,301 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 05:26:19,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-12-18 05:26:19,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 05:26:19,526 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1] [2021-12-18 05:26:19,529 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-18 05:26:19,557 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,558 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,559 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,559 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,559 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,559 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,560 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,560 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,560 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,560 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,560 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,561 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,561 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,561 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,561 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,562 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,562 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,562 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,562 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,562 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,563 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:26:19,563 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:26:19,563 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,563 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,563 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:26:19,563 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:26:19,564 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,564 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,564 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,564 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,565 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,565 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,565 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,565 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,565 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,566 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,566 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,566 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,566 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,566 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,566 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:26:19,567 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:26:19,567 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,567 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,567 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:26:19,567 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-12-18 05:26:19,567 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,568 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-12-18 05:26:19,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 05:26:19 BoogieIcfgContainer [2021-12-18 05:26:19,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-18 05:26:19,727 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-18 05:26:19,727 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-18 05:26:19,727 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-18 05:26:19,728 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:25:55" (3/4) ... [2021-12-18 05:26:19,730 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-18 05:26:19,730 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-18 05:26:19,731 INFO L158 Benchmark]: Toolchain (without parser) took 31454.51ms. Allocated memory was 67.1MB in the beginning and 232.8MB in the end (delta: 165.7MB). Free memory was 44.4MB in the beginning and 95.3MB in the end (delta: -50.9MB). Peak memory consumption was 114.0MB. Max. memory is 16.1GB. [2021-12-18 05:26:19,731 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 67.1MB. Free memory was 49.6MB in the beginning and 49.5MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 05:26:19,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1302.12ms. Allocated memory was 67.1MB in the beginning and 113.2MB in the end (delta: 46.1MB). Free memory was 44.2MB in the beginning and 50.2MB in the end (delta: -6.0MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2021-12-18 05:26:19,732 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.51ms. Allocated memory is still 113.2MB. Free memory was 50.2MB in the beginning and 63.6MB in the end (delta: -13.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-12-18 05:26:19,732 INFO L158 Benchmark]: Boogie Preprocessor took 144.03ms. Allocated memory is still 113.2MB. Free memory was 63.6MB in the beginning and 53.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-18 05:26:19,733 INFO L158 Benchmark]: RCFGBuilder took 5984.81ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 53.1MB in the beginning and 109.7MB in the end (delta: -56.6MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2021-12-18 05:26:19,733 INFO L158 Benchmark]: TraceAbstraction took 23891.55ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 109.7MB in the beginning and 95.3MB in the end (delta: 14.5MB). Peak memory consumption was 128.6MB. Max. memory is 16.1GB. [2021-12-18 05:26:19,734 INFO L158 Benchmark]: Witness Printer took 3.39ms. Allocated memory is still 232.8MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 05:26:19,736 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 67.1MB. Free memory was 49.6MB in the beginning and 49.5MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1302.12ms. Allocated memory was 67.1MB in the beginning and 113.2MB in the end (delta: 46.1MB). Free memory was 44.2MB in the beginning and 50.2MB in the end (delta: -6.0MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.51ms. Allocated memory is still 113.2MB. Free memory was 50.2MB in the beginning and 63.6MB in the end (delta: -13.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 144.03ms. Allocated memory is still 113.2MB. Free memory was 63.6MB in the beginning and 53.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 5984.81ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 53.1MB in the beginning and 109.7MB in the end (delta: -56.6MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. * TraceAbstraction took 23891.55ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 109.7MB in the beginning and 95.3MB in the end (delta: 14.5MB). Peak memory consumption was 128.6MB. Max. memory is 16.1GB. * Witness Printer took 3.39ms. Allocated memory is still 232.8MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 4236]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 4030. Possible FailurePath: [L3355] int LDV_IN_INTERRUPT = 1; [L3356] struct block_device *virtblk_fops_group0 ; [L3357] int ldv_state_variable_2 ; [L3358] int ref_cnt ; [L3359] int ldv_state_variable_1 ; [L3360] struct virtio_device *virtio_blk_group0 ; [L3361] int ldv_state_variable_0 ; [L3492] static int major ; [L3493] static int index ; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4018-L4019] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4020-L4023] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4047] struct virtio_device_id const __mod_virtio_device_table ; [L4048] int ldv_retval_0 ; [L4049] int ldv_retval_1 ; [L4283] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4072] unsigned long ldvarg1 ; [L4073] fmode_t ldvarg3 ; [L4074] struct hd_geometry *ldvarg0 ; [L4075] void *tmp ; [L4076] unsigned int ldvarg2 ; [L4077] int tmp___0 ; [L4078] int tmp___1 ; [L4079] int tmp___2 ; [L4080] int tmp___3 ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg1={962:0}, ldvarg3={1727:0}, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4082] CALL, EXPR ldv_init_zalloc(16UL) VAL [\old(size)=16, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3290] void *p ; [L3291] void *tmp ; [L3293] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=16, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={42:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, size=16, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3293] tmp = calloc(1UL, size) [L3294] p = tmp VAL [\old(size)=16, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={42:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, p={42:0}, ref_cnt=0, size=16, tmp={42:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3295] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3249] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, cond=1, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3295] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=16, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={42:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, p={42:0}, ref_cnt=0, size=16, tmp={42:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [\old(size)=16, \result={42:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={42:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, p={42:0}, ref_cnt=0, size=16, tmp={42:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4082] RET, EXPR ldv_init_zalloc(16UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_init_zalloc(16UL)={42:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg1={962:0}, ldvarg3={1727:0}, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4082] tmp = ldv_init_zalloc(16UL) [L4083] ldvarg0 = (struct hd_geometry *)tmp [L4084] FCALL ldv_initialize() [L4085] CALL ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3301] void *tmp ; [L3303] EXPR, FCALL memset(s, c, n) [L3303] tmp = memset(s, c, n) [L3304] return (tmp); VAL [\old(c)=0, \old(n)=null, \result={962:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, c=null, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, n=null, ref_cnt=0, s={962:0}, s={962:0}, tmp={962:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4085] RET ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg1), 0, 8UL)={962:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={42:0}, ldvarg1={962:0}, ldvarg3={1727:0}, major=0, ref_cnt=0, tmp={42:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4086] CALL ldv_memset((void *)(& ldvarg3), 0, 4UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3301] void *tmp ; [L3303] EXPR, FCALL memset(s, c, n) [L3303] tmp = memset(s, c, n) [L3304] return (tmp); VAL [\old(c)=0, \old(n)=null, \result={1727:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, c=null, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, n=null, ref_cnt=0, s={1727:0}, s={1727:0}, tmp={1727:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4086] RET ldv_memset((void *)(& ldvarg3), 0, 4UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg3), 0, 4UL)={1727:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={42:0}, ldvarg1={962:0}, ldvarg3={1727:0}, major=0, ref_cnt=0, tmp={42:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4087] ldvarg2 = __VERIFIER_nondet_ulong () [L4088] ldv_state_variable_1 = 0 [L4089] ref_cnt = 0 [L4090] ldv_state_variable_0 = 1 [L4091] ldv_state_variable_2 = 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={42:0}, ldvarg1={962:0}, ldvarg2=1447184708, ldvarg3={1727:0}, major=0, ref_cnt=0, tmp={42:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4093] tmp___0 = __VERIFIER_nondet_int() [L4095] case 0: [L4125] case 1: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={42:0}, ldvarg1={962:0}, ldvarg2=1447184708, ldvarg3={1727:0}, major=0, ref_cnt=0, tmp={42:0}, tmp___0=1, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4126] COND TRUE ldv_state_variable_0 != 0 [L4127] tmp___2 = __VERIFIER_nondet_int() [L4129] case 0: [L4137] case 1: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={42:0}, ldvarg1={962:0}, ldvarg2=1447184708, ldvarg3={1727:0}, major=0, ref_cnt=0, tmp={42:0}, tmp___0=1, tmp___2=1, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4138] COND TRUE ldv_state_variable_0 == 1 [L4139] CALL, EXPR init() [L4028] int tmp ; [L4030] CALL, EXPR register_blkdev(0U, "virtblk") [L4472] return __VERIFIER_nondet_int(); [L4030] RET, EXPR register_blkdev(0U, "virtblk") [L4030] major = register_blkdev(0U, "virtblk") [L4031] COND FALSE !(major < 0) [L4035] CALL, EXPR register_virtio_driver(& virtio_blk) [L4476] return __VERIFIER_nondet_int(); [L4035] RET, EXPR register_virtio_driver(& virtio_blk) [L4035] tmp = register_virtio_driver(& virtio_blk) [L4036] return (tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, tmp=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4139] RET, EXPR init() [L4139] ldv_retval_1 = init() [L4140] COND TRUE ldv_retval_1 == 0 [L4141] ldv_state_variable_0 = 3 [L4142] ldv_state_variable_2 = 1 [L4143] CALL ldv_initialize_block_device_operations_2() [L4063] void *tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4065] CALL, EXPR ldv_init_zalloc(464UL) VAL [\old(size)=464, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3290] void *p ; [L3291] void *tmp ; [L3293] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=464, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={942:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, size=464, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3293] tmp = calloc(1UL, size) [L3294] p = tmp VAL [\old(size)=464, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={942:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, p={942:0}, ref_cnt=0, size=464, tmp={942:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3295] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3249] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, cond=1, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3295] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=464, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={942:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, p={942:0}, ref_cnt=0, size=464, tmp={942:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [\old(size)=464, \result={942:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={942:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, p={942:0}, ref_cnt=0, size=464, tmp={942:0}, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4065] RET, EXPR ldv_init_zalloc(464UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_init_zalloc(464UL)={942:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={0:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4065] tmp = ldv_init_zalloc(464UL) [L4066] virtblk_fops_group0 = (struct block_device *)tmp VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, tmp={942:0}, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4143] RET ldv_initialize_block_device_operations_2() [L4144] ldv_state_variable_1 = 1 [L4145] CALL ldv_initialize_virtio_driver_1() [L4054] void *tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4056] CALL, EXPR ldv_init_zalloc(1048UL) VAL [\old(size)=1048, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3290] void *p ; [L3291] void *tmp ; [L3293] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=1048, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={26:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, size=1048, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3293] tmp = calloc(1UL, size) [L3294] p = tmp VAL [\old(size)=1048, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={26:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={26:0}, ref_cnt=0, size=1048, tmp={26:0}, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3295] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3249] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, cond=1, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3295] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1048, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={26:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={26:0}, ref_cnt=0, size=1048, tmp={26:0}, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [\old(size)=1048, \result={26:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={26:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={26:0}, ref_cnt=0, size=1048, tmp={26:0}, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4056] RET, EXPR ldv_init_zalloc(1048UL) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1048UL)={26:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={0:0}] [L4056] tmp = ldv_init_zalloc(1048UL) [L4057] virtio_blk_group0 = (struct virtio_device *)tmp VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, tmp={26:0}, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4145] RET ldv_initialize_virtio_driver_1() [L4148] COND FALSE !(ldv_retval_1 != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={42:0}, ldvarg1={962:0}, ldvarg2=1447184708, ldvarg3={1727:0}, major=0, ref_cnt=0, tmp={42:0}, tmp___0=1, tmp___2=1, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4093] tmp___0 = __VERIFIER_nondet_int() [L4095] case 0: [L4125] case 1: [L4163] case 2: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={42:0}, ldvarg1={962:0}, ldvarg2=1447184708, ldvarg3={1727:0}, major=0, ref_cnt=0, tmp={42:0}, tmp___0=2, tmp___2=1, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4164] COND TRUE ldv_state_variable_2 != 0 [L4165] tmp___3 = __VERIFIER_nondet_int() [L4167] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={42:0}, ldvarg1={962:0}, ldvarg2=1447184708, ldvarg3={1727:0}, major=0, ref_cnt=0, tmp={42:0}, tmp___0=2, tmp___2=1, tmp___3=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4168] COND TRUE ldv_state_variable_2 == 1 [L4169] EXPR \read(ldvarg3) [L4169] EXPR \read(ldvarg1) [L4169] CALL virtblk_ioctl(virtblk_fops_group0, ldvarg3, ldvarg2, ldvarg1) [L3756] struct gendisk *disk ; [L3757] struct virtio_blk *vblk ; [L3758] void *usr_data ; [L3759] char id_str[20U] ; [L3760] int err ; [L3761] int tmp ; [L3762] bool tmp___0 ; [L3763] int tmp___1 ; [L3764] int tmp___2 ; [L3766] EXPR bdev->bd_disk [L3766] disk = bdev->bd_disk [L3767] EXPR disk->private_data [L3767] vblk = (struct virtio_blk *)disk->private_data [L3768] COND TRUE cmd == 1447184708U [L3769] usr_data = (void *)data [L3770] CALL, EXPR virtblk_get_id(disk, (char *)(& id_str)) [L3723] struct virtio_blk *vblk ; [L3724] struct request *req ; [L3725] struct bio *bio ; [L3726] long tmp ; [L3727] long tmp___0 ; [L3728] long tmp___1 ; [L3729] long tmp___2 ; [L3730] int tmp___3 ; [L3732] EXPR disk->private_data [L3732] vblk = (struct virtio_blk *)disk->private_data [L3733] EXPR vblk->disk [L3733] EXPR (vblk->disk)->queue [L3733] CALL, EXPR bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4381] CALL, EXPR ldv_malloc(sizeof(struct bio)) VAL [\old(size)=112, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3254] void *p ; [L3255] void *tmp ; [L3256] int tmp___0 ; [L3258] tmp___0 = __VERIFIER_nondet_int() [L3259] COND TRUE tmp___0 != 0 [L3260] return ((void *)0); VAL [\old(size)=112, \result={0:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, size=112, tmp___0=2147483648, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4381] RET, EXPR ldv_malloc(sizeof(struct bio)) VAL [\old(arg2)=20, \old(arg3)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, arg0={0:0}, arg0={0:0}, arg1={1035:0}, arg1={1035:0}, arg2=20, arg3=208, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct bio))={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4381] return ldv_malloc(sizeof(struct bio)); [L3733] RET, EXPR bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L3733] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L3734] CALL, EXPR IS_ERR((void const *)bio) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={0:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4216] bool tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={0:0}, ptr={0:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={0:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={0:0}, ptr={0:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={0:0}, ptr={0:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4218] tmp = ldv_is_err(ptr) [L4219] return ((long )tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={0:0}, ptr={0:0}, ref_cnt=0, tmp=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3734] RET, EXPR IS_ERR((void const *)bio) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bio={0:0}, disk={0:0}, disk={0:0}, features={13:0}, id_str={1035:0}, id_str={1035:0}, id_table={12:0}, index=0, IS_ERR((void const *)bio)=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, vblk={0:0}, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3734] tmp___0 = IS_ERR((void const *)bio) [L3735] COND FALSE !(tmp___0 != 0L) [L3740] EXPR vblk->disk [L3740] EXPR (vblk->disk)->queue [L3740] CALL, EXPR ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4225] struct request *tmp ; [L4227] CALL, EXPR ldv_blk_make_request(ldv_func_arg3) [L4309] struct request *res ; [L4310] long tmp___0 ; VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, mask=208, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4312] COND FALSE !(ldv_blk_rq != 0) VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, mask=208, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4316] CALL, EXPR ldv_malloc(sizeof(struct request)) VAL [\old(size)=322, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3254] void *p ; [L3255] void *tmp ; [L3256] int tmp___0 ; [L3258] tmp___0 = __VERIFIER_nondet_int() [L3259] COND FALSE !(tmp___0 != 0) [L3262] tmp = malloc(size) [L3263] p = tmp VAL [\old(size)=322, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={695:0}, ref_cnt=0, size=322, tmp={695:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3264] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3249] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, cond=1, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3264] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=322, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={695:0}, ref_cnt=0, size=322, tmp={695:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3265] CALL, EXPR IS_ERR(p) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4216] bool tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ptr={695:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ptr={695:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ptr={695:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4218] tmp = ldv_is_err(ptr) [L4219] return ((long )tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ptr={695:0}, ref_cnt=0, tmp=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3265] RET, EXPR IS_ERR(p) VAL [\old(size)=322, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, IS_ERR(p)=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={695:0}, ref_cnt=0, size=322, tmp={695:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3265] CALL assume_abort_if_not(IS_ERR(p) == 0) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3249] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, cond=1, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3265] RET assume_abort_if_not(IS_ERR(p) == 0) VAL [\old(size)=322, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, IS_ERR(p)=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={695:0}, ref_cnt=0, size=322, tmp={695:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3266] return (p); VAL [\old(size)=322, \result={695:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={695:0}, ref_cnt=0, size=322, tmp={695:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4316] RET, EXPR ldv_malloc(sizeof(struct request)) VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct request))={695:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, mask=208, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4316] res = ldv_malloc(sizeof(struct request)) [L4317] COND FALSE !((unsigned long )res == (unsigned long )((struct request *)0)) VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, mask=208, ref_cnt=0, res={695:0}, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4321] CALL, EXPR IS_ERR___0((void const *)res) [L4277] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ptr={695:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4279] CALL, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [\old(c)=0, \old(exp)=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3333] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, c=null, exp=0, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4279] RET, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L)=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ptr={695:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4279] tmp = ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) [L4280] return (tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ptr={695:0}, ref_cnt=0, tmp=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4321] RET, EXPR IS_ERR___0((void const *)res) [L4321] tmp___0 = IS_ERR___0((void const *)res) [L4322] COND TRUE tmp___0 == 0L [L4323] ldv_blk_rq = 1 VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, mask=208, ref_cnt=0, res={695:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4326] return (res); VAL [\old(mask)=208, \result={695:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, mask=208, ref_cnt=0, res={695:0}, tmp___0=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4227] RET, EXPR ldv_blk_make_request(ldv_func_arg3) [L4227] tmp = ldv_blk_make_request(ldv_func_arg3) [L4228] return (tmp); VAL [\old(ldv_func_arg3)=208, \result={695:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, ldv_func_arg1={0:0}, ldv_func_arg1={0:0}, ldv_func_arg2={0:0}, ldv_func_arg2={0:0}, ldv_func_arg3=208, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, tmp={695:0}, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3740] RET, EXPR ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L3740] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L3741] CALL, EXPR IS_ERR((void const *)req) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4216] bool tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ptr={695:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ptr={695:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ptr={695:0}, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4218] tmp = ldv_is_err(ptr) [L4219] return ((long )tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={695:0}, ptr={695:0}, ref_cnt=0, tmp=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3741] RET, EXPR IS_ERR((void const *)req) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bio={0:0}, disk={0:0}, disk={0:0}, features={13:0}, id_str={1035:0}, id_str={1035:0}, id_table={12:0}, index=0, IS_ERR((void const *)req)=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, req={695:0}, tmp___0=0, vblk={0:0}, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3741] tmp___2 = IS_ERR((void const *)req) [L3742] COND FALSE !(tmp___2 != 0L) [L3748] req->cmd_type = 7 [L3749] EXPR vblk->disk [L3749] EXPR (vblk->disk)->queue [L3749] EXPR vblk->disk [L3749] CALL, EXPR blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L4391] return __VERIFIER_nondet_int(); [L3749] RET, EXPR blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3749] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3750] return (tmp___3); VAL [\result=-2147483648, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bio={0:0}, disk={0:0}, disk={0:0}, features={13:0}, id_str={1035:0}, id_str={1035:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, req={695:0}, tmp___0=0, tmp___2=0, tmp___3=2147483648, vblk={0:0}, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3770] RET, EXPR virtblk_get_id(disk, (char *)(& id_str)) [L3770] err = virtblk_get_id(disk, (char *)(& id_str)) [L3771] COND FALSE !(err == 0) VAL [\old(cmd)=1447184708, \old(data)=0, \old(mode)=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bdev={942:0}, bdev={942:0}, cmd=1447184708, data=0, disk={0:0}, err=2147483648, features={13:0}, id_str={1035:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, mode=0, ref_cnt=0, usr_data={0:0}, vblk={0:0}, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L3779] return (err); [L3779] return (err); VAL [\old(cmd)=1447184708, \old(data)=0, \old(mode)=0, \result=-2147483648, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bdev={942:0}, bdev={942:0}, cmd=1447184708, data=0, disk={0:0}, err=2147483648, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, mode=0, ref_cnt=0, usr_data={0:0}, vblk={0:0}, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4169] RET virtblk_ioctl(virtblk_fops_group0, ldvarg3, ldvarg2, ldvarg1) [L4170] ldv_state_variable_2 = 1 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={42:0}, ldvarg1={962:0}, ldvarg2=1447184708, ldvarg3={1727:0}, major=0, ref_cnt=0, tmp={42:0}, tmp___0=2, tmp___2=1, tmp___3=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4093] tmp___0 = __VERIFIER_nondet_int() [L4095] case 0: [L4125] case 1: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={42:0}, ldvarg1={962:0}, ldvarg2=1447184708, ldvarg3={1727:0}, major=0, ref_cnt=0, tmp={42:0}, tmp___0=1, tmp___2=1, tmp___3=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4126] COND TRUE ldv_state_variable_0 != 0 [L4127] tmp___2 = __VERIFIER_nondet_int() [L4129] case 0: VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={42:0}, ldvarg1={962:0}, ldvarg2=1447184708, ldvarg3={1727:0}, major=0, ref_cnt=0, tmp={42:0}, tmp___0=1, tmp___2=0, tmp___3=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4130] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L4131] CALL fini() [L4042] FCALL unregister_blkdev((unsigned int )major, "virtblk") [L4043] FCALL unregister_virtio_driver(& virtio_blk) [L4131] RET fini() [L4132] ldv_state_variable_0 = 2 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={42:0}, ldvarg1={962:0}, ldvarg2=1447184708, ldvarg3={1727:0}, major=0, ref_cnt=0, tmp={42:0}, tmp___0=1, tmp___2=0, tmp___3=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4194] CALL ldv_check_final_state() [L4343] COND TRUE ldv_blk_rq != 0 VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4344] CALL ldv_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] [L4236] reach_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={13:0}, id_table={12:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={11:0}, virtblk_fops_group0={942:0}, virtio_blk={14:0}, virtio_blk_group0={26:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 458 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.6s, OverallIterations: 11, TraceHistogramMax: 12, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1657 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1657 mSDsluCounter, 19179 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13151 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 277 IncrementalHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 6028 mSDtfsCounter, 277 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1106 GetRequests, 1053 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3039occurred in iteration=10, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 37 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 7.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1065 NumberOfCodeBlocks, 1035 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1089 ConstructedInterpolants, 0 QuantifiedInterpolants, 1534 SizeOfPredicates, 17 NumberOfNonLiveVariables, 5137 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 743/796 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-18 05:26:19,799 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: UNKNOWN: Overapproximated counterexample