./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 0f8a17c6 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 0.2.1-dev-0f8a17c [2021-11-17 02:02:46,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 02:02:46,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 02:02:46,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 02:02:46,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 02:02:46,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 02:02:46,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 02:02:46,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 02:02:46,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 02:02:46,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 02:02:46,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 02:02:46,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 02:02:46,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 02:02:46,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 02:02:46,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 02:02:46,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 02:02:46,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 02:02:46,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 02:02:46,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 02:02:46,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 02:02:46,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 02:02:46,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 02:02:46,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 02:02:46,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 02:02:46,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 02:02:46,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 02:02:46,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 02:02:46,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 02:02:46,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 02:02:46,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 02:02:46,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 02:02:46,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 02:02:46,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 02:02:46,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 02:02:46,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 02:02:46,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 02:02:46,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 02:02:46,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 02:02:46,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 02:02:46,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 02:02:46,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 02:02:46,333 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 02:02:46,357 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 02:02:46,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 02:02:46,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 02:02:46,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 02:02:46,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 02:02:46,359 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 02:02:46,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 02:02:46,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 02:02:46,359 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 02:02:46,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 02:02:46,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 02:02:46,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 02:02:46,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 02:02:46,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 02:02:46,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 02:02:46,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 02:02:46,361 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 02:02:46,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 02:02:46,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 02:02:46,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 02:02:46,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 02:02:46,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 02:02:46,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 02:02:46,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 02:02:46,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 02:02:46,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 02:02:46,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 02:02:46,363 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 02:02:46,363 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 02:02:46,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 02:02:46,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 02:02:46,363 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8946ad2f029076f7c4f90de60a8c48e069f80fec06a0c6d7a5dc3a1fc4182879 [2021-11-17 02:02:46,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 02:02:46,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 02:02:46,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 02:02:46,534 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 02:02:46,534 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 02:02:46,541 INFO L432 ainManager$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 [2021-11-17 02:02:46,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f13c4213/261e037a7d63499da43cfe22d08beefa/FLAG3d1ee2676 [2021-11-17 02:02:47,130 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 02:02:47,131 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 [2021-11-17 02:02:47,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f13c4213/261e037a7d63499da43cfe22d08beefa/FLAG3d1ee2676 [2021-11-17 02:02:47,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f13c4213/261e037a7d63499da43cfe22d08beefa [2021-11-17 02:02:47,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 02:02:47,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 02:02:47,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 02:02:47,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 02:02:47,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 02:02:47,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:02:47" (1/1) ... [2021-11-17 02:02:47,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f49941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:02:47, skipping insertion in model container [2021-11-17 02:02:47,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:02:47" (1/1) ... [2021-11-17 02:02:47,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 02:02:47,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 02:02:48,214 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] [2021-11-17 02:02:48,241 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 02:02:48,252 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 02:02:48,427 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] [2021-11-17 02:02:48,442 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 02:02:48,497 INFO L208 MainTranslator]: Completed translation [2021-11-17 02:02:48,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:02:48 WrapperNode [2021-11-17 02:02:48,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 02:02:48,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 02:02:48,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 02:02:48,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 02:02:48,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:02:48" (1/1) ... [2021-11-17 02:02:48,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:02:48" (1/1) ... [2021-11-17 02:02:48,621 INFO L137 Inliner]: procedures = 142, calls = 521, calls flagged for inlining = 83, calls inlined = 83, statements flattened = 1653 [2021-11-17 02:02:48,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 02:02:48,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 02:02:48,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 02:02:48,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 02:02:48,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:02:48" (1/1) ... [2021-11-17 02:02:48,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:02:48" (1/1) ... [2021-11-17 02:02:48,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:02:48" (1/1) ... [2021-11-17 02:02:48,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:02:48" (1/1) ... [2021-11-17 02:02:48,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:02:48" (1/1) ... [2021-11-17 02:02:48,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:02:48" (1/1) ... [2021-11-17 02:02:48,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:02:48" (1/1) ... [2021-11-17 02:02:48,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 02:02:48,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 02:02:48,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 02:02:48,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 02:02:48,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:02:48" (1/1) ... [2021-11-17 02:02:48,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 02:02:48,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:02:48,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 02:02:48,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 02:02:48,817 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2021-11-17 02:02:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2021-11-17 02:02:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2021-11-17 02:02:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2021-11-17 02:02:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 02:02:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 02:02:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 02:02:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 02:02:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 02:02:48,819 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2021-11-17 02:02:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2021-11-17 02:02:48,819 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-11-17 02:02:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2021-11-17 02:02:48,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 02:02:48,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 02:02:48,820 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2021-11-17 02:02:48,820 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2021-11-17 02:02:48,820 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2021-11-17 02:02:48,820 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2021-11-17 02:02:48,820 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 02:02:48,820 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 02:02:48,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 02:02:48,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 02:02:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 02:02:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 02:02:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 02:02:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2021-11-17 02:02:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2021-11-17 02:02:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 02:02:48,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 02:02:48,821 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 02:02:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 02:02:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 02:02:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 02:02:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 02:02:48,822 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 02:02:48,822 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 02:02:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 02:02:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2021-11-17 02:02:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2021-11-17 02:02:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 02:02:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 02:02:48,823 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 02:02:48,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 02:02:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2021-11-17 02:02:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2021-11-17 02:02:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2021-11-17 02:02:48,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2021-11-17 02:02:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 02:02:48,824 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-17 02:02:48,825 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-17 02:02:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 02:02:48,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 02:02:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 02:02:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 02:02:48,825 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-11-17 02:02:48,826 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-11-17 02:02:48,826 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2021-11-17 02:02:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2021-11-17 02:02:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 02:02:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 02:02:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 02:02:48,828 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-17 02:02:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-17 02:02:49,137 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 02:02:49,139 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 02:02:49,496 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 02:02:49,962 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 02:02:49,975 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 02:02:49,975 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 02:02:49,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 02:02:49 BoogieIcfgContainer [2021-11-17 02:02:49,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 02:02:49,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 02:02:49,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 02:02:49,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 02:02:49,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 02:02:47" (1/3) ... [2021-11-17 02:02:49,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2306e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:02:49, skipping insertion in model container [2021-11-17 02:02:49,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:02:48" (2/3) ... [2021-11-17 02:02:49,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2306e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:02:49, skipping insertion in model container [2021-11-17 02:02:49,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 02:02:49" (3/3) ... [2021-11-17 02:02:49,983 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 [2021-11-17 02:02:49,987 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 02:02:49,987 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 02:02:50,022 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 02:02:50,027 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 02:02:50,027 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 02:02:50,052 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) [2021-11-17 02:02:50,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-17 02:02:50,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:02:50,058 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] [2021-11-17 02:02:50,058 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:02:50,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:02:50,062 INFO L85 PathProgramCache]: Analyzing trace with hash -552855411, now seen corresponding path program 1 times [2021-11-17 02:02:50,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:02:50,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928801066] [2021-11-17 02:02:50,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:02:50,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:02:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:50,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:02:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:50,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:50,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:50,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 02:02:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:50,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 02:02:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:50,407 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-17 02:02:50,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:02:50,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928801066] [2021-11-17 02:02:50,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928801066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:02:50,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:02:50,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:02:50,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561027240] [2021-11-17 02:02:50,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:02:50,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:02:50,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:02:50,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:02:50,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:02:50,442 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) [2021-11-17 02:02:51,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:02:51,844 INFO L93 Difference]: Finished difference Result 1516 states and 2132 transitions. [2021-11-17 02:02:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 02:02:51,846 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 [2021-11-17 02:02:51,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:02:51,860 INFO L225 Difference]: With dead ends: 1516 [2021-11-17 02:02:51,861 INFO L226 Difference]: Without dead ends: 1029 [2021-11-17 02:02:51,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:02:51,870 INFO L933 BasicCegarLoop]: 633 mSDtfsCounter, 1103 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2021-11-17 02:02:51,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1179 Valid, 1989 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [535 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-17 02:02:51,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2021-11-17 02:02:51,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 836. [2021-11-17 02:02:51,950 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) [2021-11-17 02:02:51,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1105 transitions. [2021-11-17 02:02:51,966 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1105 transitions. Word has length 46 [2021-11-17 02:02:51,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:02:51,966 INFO L470 AbstractCegarLoop]: Abstraction has 836 states and 1105 transitions. [2021-11-17 02:02:51,967 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) [2021-11-17 02:02:51,967 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1105 transitions. [2021-11-17 02:02:51,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-17 02:02:51,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:02:51,969 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] [2021-11-17 02:02:51,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 02:02:51,969 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:02:51,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:02:51,970 INFO L85 PathProgramCache]: Analyzing trace with hash 95226783, now seen corresponding path program 1 times [2021-11-17 02:02:51,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:02:51,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103655915] [2021-11-17 02:02:51,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:02:51,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:02:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:52,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:02:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:52,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:52,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:52,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 02:02:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:52,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 02:02:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:52,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-17 02:02:52,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:02:52,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103655915] [2021-11-17 02:02:52,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103655915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:02:52,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:02:52,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:02:52,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335985238] [2021-11-17 02:02:52,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:02:52,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:02:52,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:02:52,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:02:52,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:02:52,084 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) [2021-11-17 02:02:52,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:02:52,963 INFO L93 Difference]: Finished difference Result 2018 states and 2763 transitions. [2021-11-17 02:02:52,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 02:02:52,963 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 [2021-11-17 02:02:52,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:02:52,974 INFO L225 Difference]: With dead ends: 2018 [2021-11-17 02:02:52,975 INFO L226 Difference]: Without dead ends: 2009 [2021-11-17 02:02:52,976 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 [2021-11-17 02:02:52,977 INFO L933 BasicCegarLoop]: 616 mSDtfsCounter, 1366 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 770 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2021-11-17 02:02:52,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1443 Valid, 1423 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [770 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-17 02:02:52,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2021-11-17 02:02:53,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 1633. [2021-11-17 02:02:53,062 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) [2021-11-17 02:02:53,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2158 transitions. [2021-11-17 02:02:53,072 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2158 transitions. Word has length 49 [2021-11-17 02:02:53,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:02:53,073 INFO L470 AbstractCegarLoop]: Abstraction has 1633 states and 2158 transitions. [2021-11-17 02:02:53,073 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) [2021-11-17 02:02:53,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2158 transitions. [2021-11-17 02:02:53,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-17 02:02:53,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:02:53,081 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] [2021-11-17 02:02:53,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 02:02:53,082 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:02:53,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:02:53,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1803513478, now seen corresponding path program 1 times [2021-11-17 02:02:53,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:02:53,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059651577] [2021-11-17 02:02:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:02:53,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:02:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:53,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:02:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:53,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:53,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:53,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 02:02:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:53,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 02:02:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:53,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 02:02:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:53,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 02:02:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:53,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:53,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 02:02:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:53,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 02:02:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:53,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 02:02:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:53,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:53,245 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-17 02:02:53,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:02:53,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059651577] [2021-11-17 02:02:53,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059651577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:02:53,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:02:53,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 02:02:53,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434654028] [2021-11-17 02:02:53,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:02:53,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 02:02:53,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:02:53,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 02:02:53,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-17 02:02:53,248 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) [2021-11-17 02:02:54,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:02:54,476 INFO L93 Difference]: Finished difference Result 6006 states and 8246 transitions. [2021-11-17 02:02:54,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 02:02:54,477 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 [2021-11-17 02:02:54,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:02:54,502 INFO L225 Difference]: With dead ends: 6006 [2021-11-17 02:02:54,503 INFO L226 Difference]: Without dead ends: 4387 [2021-11-17 02:02:54,511 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 [2021-11-17 02:02:54,512 INFO L933 BasicCegarLoop]: 611 mSDtfsCounter, 1713 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 1124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 1823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1124 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-17 02:02:54,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1801 Valid, 1717 Invalid, 1823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1124 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-17 02:02:54,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2021-11-17 02:02:54,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 3023. [2021-11-17 02:02:54,636 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) [2021-11-17 02:02:54,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3023 states to 3023 states and 3978 transitions. [2021-11-17 02:02:54,648 INFO L78 Accepts]: Start accepts. Automaton has 3023 states and 3978 transitions. Word has length 110 [2021-11-17 02:02:54,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:02:54,649 INFO L470 AbstractCegarLoop]: Abstraction has 3023 states and 3978 transitions. [2021-11-17 02:02:54,649 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) [2021-11-17 02:02:54,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3023 states and 3978 transitions. [2021-11-17 02:02:54,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-17 02:02:54,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:02:54,653 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] [2021-11-17 02:02:54,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 02:02:54,654 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:02:54,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:02:54,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1431908567, now seen corresponding path program 1 times [2021-11-17 02:02:54,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:02:54,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099890683] [2021-11-17 02:02:54,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:02:54,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:02:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:02:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 02:02:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 02:02:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 02:02:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 02:02:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 02:02:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 02:02:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 02:02:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:02:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 02:02:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:54,815 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-17 02:02:54,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:02:54,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099890683] [2021-11-17 02:02:54,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099890683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:02:54,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:02:54,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 02:02:54,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730046187] [2021-11-17 02:02:54,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:02:54,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 02:02:54,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:02:54,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 02:02:54,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 02:02:54,820 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) [2021-11-17 02:02:55,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:02:55,820 INFO L93 Difference]: Finished difference Result 7395 states and 10067 transitions. [2021-11-17 02:02:55,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 02:02:55,821 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 [2021-11-17 02:02:55,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:02:55,846 INFO L225 Difference]: With dead ends: 7395 [2021-11-17 02:02:55,847 INFO L226 Difference]: Without dead ends: 4390 [2021-11-17 02:02:55,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-11-17 02:02:55,858 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 446 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2021-11-17 02:02:55,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2430 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-17 02:02:55,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4390 states. [2021-11-17 02:02:55,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4390 to 3026. [2021-11-17 02:02:55,967 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) [2021-11-17 02:02:55,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3026 states to 3026 states and 3979 transitions. [2021-11-17 02:02:55,978 INFO L78 Accepts]: Start accepts. Automaton has 3026 states and 3979 transitions. Word has length 153 [2021-11-17 02:02:55,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:02:55,978 INFO L470 AbstractCegarLoop]: Abstraction has 3026 states and 3979 transitions. [2021-11-17 02:02:55,978 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) [2021-11-17 02:02:55,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3026 states and 3979 transitions. [2021-11-17 02:02:55,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-17 02:02:55,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:02:55,983 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] [2021-11-17 02:02:55,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 02:02:55,983 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:02:55,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:02:55,984 INFO L85 PathProgramCache]: Analyzing trace with hash 2072432622, now seen corresponding path program 1 times [2021-11-17 02:02:55,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:02:55,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973617855] [2021-11-17 02:02:55,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:02:55,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:02:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:02:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 02:02:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 02:02:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 02:02:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 02:02:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 02:02:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 02:02:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 02:02:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 02:02:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 02:02:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:56,234 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-17 02:02:56,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:02:56,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973617855] [2021-11-17 02:02:56,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973617855] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:02:56,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:02:56,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 02:02:56,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695643150] [2021-11-17 02:02:56,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:02:56,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 02:02:56,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:02:56,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 02:02:56,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:02:56,236 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) [2021-11-17 02:02:57,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:02:57,428 INFO L93 Difference]: Finished difference Result 7388 states and 10051 transitions. [2021-11-17 02:02:57,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 02:02:57,429 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 [2021-11-17 02:02:57,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:02:57,457 INFO L225 Difference]: With dead ends: 7388 [2021-11-17 02:02:57,457 INFO L226 Difference]: Without dead ends: 4382 [2021-11-17 02:02:57,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-17 02:02:57,475 INFO L933 BasicCegarLoop]: 547 mSDtfsCounter, 338 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-17 02:02:57,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 3149 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-17 02:02:57,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4382 states. [2021-11-17 02:02:57,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4382 to 3030. [2021-11-17 02:02:57,592 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) [2021-11-17 02:02:57,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3997 transitions. [2021-11-17 02:02:57,601 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3997 transitions. Word has length 154 [2021-11-17 02:02:57,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:02:57,602 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3997 transitions. [2021-11-17 02:02:57,602 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) [2021-11-17 02:02:57,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3997 transitions. [2021-11-17 02:02:57,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-17 02:02:57,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:02:57,609 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] [2021-11-17 02:02:57,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 02:02:57,609 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:02:57,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:02:57,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2085975844, now seen corresponding path program 1 times [2021-11-17 02:02:57,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:02:57,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983415066] [2021-11-17 02:02:57,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:02:57,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:02:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:02:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 02:02:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 02:02:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 02:02:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 02:02:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 02:02:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 02:02:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 02:02:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:02:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 02:02:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 02:02:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 02:02:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 02:02:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-11-17 02:02:57,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:02:57,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983415066] [2021-11-17 02:02:57,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983415066] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:02:57,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083336795] [2021-11-17 02:02:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:02:57,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:02:57,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:02:57,869 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) [2021-11-17 02:02:57,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 02:02:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:58,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-17 02:02:58,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:02:58,564 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-17 02:02:58,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:02:58,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083336795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:02:58,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 02:02:58,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2021-11-17 02:02:58,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780956220] [2021-11-17 02:02:58,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:02:58,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 02:02:58,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:02:58,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 02:02:58,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:02:58,566 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) [2021-11-17 02:02:58,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:02:58,646 INFO L93 Difference]: Finished difference Result 6048 states and 7982 transitions. [2021-11-17 02:02:58,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 02:02:58,647 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 [2021-11-17 02:02:58,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:02:58,659 INFO L225 Difference]: With dead ends: 6048 [2021-11-17 02:02:58,659 INFO L226 Difference]: Without dead ends: 3031 [2021-11-17 02:02:58,669 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 [2021-11-17 02:02:58,670 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 [2021-11-17 02:02:58,670 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] [2021-11-17 02:02:58,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states. [2021-11-17 02:02:58,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 3031. [2021-11-17 02:02:58,746 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) [2021-11-17 02:02:58,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3031 states to 3031 states and 3998 transitions. [2021-11-17 02:02:58,756 INFO L78 Accepts]: Start accepts. Automaton has 3031 states and 3998 transitions. Word has length 175 [2021-11-17 02:02:58,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:02:58,757 INFO L470 AbstractCegarLoop]: Abstraction has 3031 states and 3998 transitions. [2021-11-17 02:02:58,757 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) [2021-11-17 02:02:58,757 INFO L276 IsEmpty]: Start isEmpty. Operand 3031 states and 3998 transitions. [2021-11-17 02:02:58,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-17 02:02:58,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:02:58,761 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] [2021-11-17 02:02:58,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-17 02:02:58,967 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 [2021-11-17 02:02:58,967 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:02:58,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:02:58,968 INFO L85 PathProgramCache]: Analyzing trace with hash -2062309340, now seen corresponding path program 1 times [2021-11-17 02:02:58,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:02:58,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259875943] [2021-11-17 02:02:58,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:02:58,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:02:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:02:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 02:02:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 02:02:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 02:02:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 02:02:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:02:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 02:02:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 02:02:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 02:02:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:02:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 02:02:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 02:02:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 02:02:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 02:02:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,288 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-17 02:02:59,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:02:59,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259875943] [2021-11-17 02:02:59,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259875943] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:02:59,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779191088] [2021-11-17 02:02:59,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:02:59,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:02:59,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:02:59,290 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) [2021-11-17 02:02:59,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 02:02:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:59,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-17 02:02:59,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:02:59,912 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 44 proven. 1 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-17 02:02:59,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:03:00,254 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-17 02:03:00,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779191088] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 02:03:00,254 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 02:03:00,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2021-11-17 02:03:00,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670278166] [2021-11-17 02:03:00,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 02:03:00,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-17 02:03:00,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:03:00,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-17 02:03:00,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-17 02:03:00,256 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) [2021-11-17 02:03:01,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:01,629 INFO L93 Difference]: Finished difference Result 7412 states and 10094 transitions. [2021-11-17 02:03:01,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 02:03:01,629 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 [2021-11-17 02:03:01,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:01,653 INFO L225 Difference]: With dead ends: 7412 [2021-11-17 02:03:01,654 INFO L226 Difference]: Without dead ends: 4394 [2021-11-17 02:03:01,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2021-11-17 02:03:01,668 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 461 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2021-11-17 02:03:01,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 2897 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-17 02:03:01,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2021-11-17 02:03:01,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 3041. [2021-11-17 02:03:01,776 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) [2021-11-17 02:03:01,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4010 transitions. [2021-11-17 02:03:01,786 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4010 transitions. Word has length 177 [2021-11-17 02:03:01,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:01,786 INFO L470 AbstractCegarLoop]: Abstraction has 3041 states and 4010 transitions. [2021-11-17 02:03:01,787 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) [2021-11-17 02:03:01,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4010 transitions. [2021-11-17 02:03:01,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-17 02:03:01,792 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:01,793 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] [2021-11-17 02:03:01,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 02:03:02,013 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 [2021-11-17 02:03:02,013 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:02,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:02,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1821890820, now seen corresponding path program 2 times [2021-11-17 02:03:02,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:03:02,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299120172] [2021-11-17 02:03:02,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:03:02,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:03:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:03:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:03:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:03:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 02:03:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 02:03:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 02:03:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:03:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:03:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 02:03:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:03:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:03:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 02:03:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 02:03:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:03:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 02:03:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:03:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 02:03:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:03:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 02:03:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 02:03:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 02:03:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:03:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:02,365 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-17 02:03:02,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:03:02,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299120172] [2021-11-17 02:03:02,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299120172] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:03:02,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433555485] [2021-11-17 02:03:02,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 02:03:02,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:03:02,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:03:02,367 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) [2021-11-17 02:03:02,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 02:03:02,644 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-17 02:03:02,644 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-17 02:03:02,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-17 02:03:02,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:03:03,041 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 42 proven. 25 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-17 02:03:03,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:03:03,455 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-17 02:03:03,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433555485] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 02:03:03,455 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 02:03:03,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 6] total 25 [2021-11-17 02:03:03,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019825004] [2021-11-17 02:03:03,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 02:03:03,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-17 02:03:03,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:03:03,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-17 02:03:03,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2021-11-17 02:03:03,457 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) [2021-11-17 02:03:05,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:05,863 INFO L93 Difference]: Finished difference Result 7421 states and 10101 transitions. [2021-11-17 02:03:05,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-17 02:03:05,863 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 [2021-11-17 02:03:05,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:05,898 INFO L225 Difference]: With dead ends: 7421 [2021-11-17 02:03:05,898 INFO L226 Difference]: Without dead ends: 4392 [2021-11-17 02:03:05,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=311, Invalid=1495, Unknown=0, NotChecked=0, Total=1806 [2021-11-17 02:03:05,911 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 555 mSDsluCounter, 8152 mSDsCounter, 0 mSdLazyCounter, 3041 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 8701 SdHoareTripleChecker+Invalid, 3480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 3041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-17 02:03:05,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 8701 Invalid, 3480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 3041 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-17 02:03:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4392 states. [2021-11-17 02:03:06,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4392 to 3044. [2021-11-17 02:03:06,068 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) [2021-11-17 02:03:06,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 4010 transitions. [2021-11-17 02:03:06,078 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 4010 transitions. Word has length 181 [2021-11-17 02:03:06,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:06,079 INFO L470 AbstractCegarLoop]: Abstraction has 3044 states and 4010 transitions. [2021-11-17 02:03:06,080 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) [2021-11-17 02:03:06,080 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 4010 transitions. [2021-11-17 02:03:06,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-17 02:03:06,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:06,084 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] [2021-11-17 02:03:06,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-17 02:03:06,304 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 [2021-11-17 02:03:06,304 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:06,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:06,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1555552287, now seen corresponding path program 3 times [2021-11-17 02:03:06,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:03:06,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740102199] [2021-11-17 02:03:06,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:03:06,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:03:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:03:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:03:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:03:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 02:03:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 02:03:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-17 02:03:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:03:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:03:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-17 02:03:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:03:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:03:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 02:03:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 02:03:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:03:06,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 02:03:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:03:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 02:03:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:03:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 02:03:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 02:03:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 02:03:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:03:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:06,629 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-17 02:03:06,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:03:06,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740102199] [2021-11-17 02:03:06,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740102199] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:03:06,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309925392] [2021-11-17 02:03:06,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-17 02:03:06,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:03:06,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:03:06,631 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) [2021-11-17 02:03:06,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-17 02:03:08,501 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-17 02:03:08,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-17 02:03:08,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-17 02:03:08,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:03:08,826 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-11-17 02:03:08,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:03:09,291 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-17 02:03:09,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309925392] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 02:03:09,291 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 02:03:09,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 26 [2021-11-17 02:03:09,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335716804] [2021-11-17 02:03:09,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 02:03:09,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-17 02:03:09,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:03:09,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-17 02:03:09,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2021-11-17 02:03:09,293 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) [2021-11-17 02:03:11,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:11,272 INFO L93 Difference]: Finished difference Result 7419 states and 10094 transitions. [2021-11-17 02:03:11,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-17 02:03:11,272 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 [2021-11-17 02:03:11,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:11,317 INFO L225 Difference]: With dead ends: 7419 [2021-11-17 02:03:11,318 INFO L226 Difference]: Without dead ends: 4395 [2021-11-17 02:03:11,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=405, Invalid=1401, Unknown=0, NotChecked=0, Total=1806 [2021-11-17 02:03:11,328 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 639 mSDsluCounter, 5873 mSDsCounter, 0 mSdLazyCounter, 2053 mSolverCounterSat, 575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 6418 SdHoareTripleChecker+Invalid, 2628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 2053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-17 02:03:11,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 6418 Invalid, 2628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 2053 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-17 02:03:11,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4395 states. [2021-11-17 02:03:11,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4395 to 3047. [2021-11-17 02:03:11,421 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) [2021-11-17 02:03:11,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3047 states to 3047 states and 4013 transitions. [2021-11-17 02:03:11,431 INFO L78 Accepts]: Start accepts. Automaton has 3047 states and 4013 transitions. Word has length 184 [2021-11-17 02:03:11,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:11,432 INFO L470 AbstractCegarLoop]: Abstraction has 3047 states and 4013 transitions. [2021-11-17 02:03:11,432 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) [2021-11-17 02:03:11,432 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 4013 transitions. [2021-11-17 02:03:11,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-17 02:03:11,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:11,439 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] [2021-11-17 02:03:11,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-17 02:03:11,647 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 [2021-11-17 02:03:11,648 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:11,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:11,648 INFO L85 PathProgramCache]: Analyzing trace with hash -53138148, now seen corresponding path program 4 times [2021-11-17 02:03:11,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:03:11,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781485443] [2021-11-17 02:03:11,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:03:11,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:03:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-17 02:03:11,843 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-17 02:03:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-17 02:03:12,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-17 02:03:12,030 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-17 02:03:12,031 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-17 02:03:12,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 02:03:12,034 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1] [2021-11-17 02:03:12,037 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-17 02:03:12,066 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,066 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,067 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,067 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,067 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,067 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,067 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,067 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,068 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,068 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,068 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,068 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,068 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,069 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,069 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,069 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,069 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,069 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,069 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,069 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,069 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:12,070 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,070 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:12,070 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,070 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:12,070 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,070 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:12,070 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,071 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,071 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,072 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,072 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,072 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,073 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,073 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,073 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,073 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,073 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,073 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,073 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,073 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:12,074 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,074 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:12,074 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,074 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:12,074 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,074 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:12,074 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:12,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 02:03:12 BoogieIcfgContainer [2021-11-17 02:03:12,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-17 02:03:12,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-17 02:03:12,185 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-17 02:03:12,185 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-17 02:03:12,185 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 02:02:49" (3/4) ... [2021-11-17 02:03:12,187 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-17 02:03:12,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-17 02:03:12,188 INFO L158 Benchmark]: Toolchain (without parser) took 24565.66ms. Allocated memory was 109.1MB in the beginning and 490.7MB in the end (delta: 381.7MB). Free memory was 71.1MB in the beginning and 144.6MB in the end (delta: -73.5MB). Peak memory consumption was 308.4MB. Max. memory is 16.1GB. [2021-11-17 02:03:12,188 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 109.1MB. Free memory was 82.3MB in the beginning and 82.3MB in the end (delta: 32.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-17 02:03:12,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 874.91ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 70.9MB in the beginning and 102.4MB in the end (delta: -31.6MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2021-11-17 02:03:12,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.36ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 91.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-17 02:03:12,189 INFO L158 Benchmark]: Boogie Preprocessor took 109.70ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 82.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-17 02:03:12,189 INFO L158 Benchmark]: RCFGBuilder took 1233.35ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 66.2MB in the end (delta: 15.9MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2021-11-17 02:03:12,189 INFO L158 Benchmark]: TraceAbstraction took 22205.16ms. Allocated memory was 142.6MB in the beginning and 490.7MB in the end (delta: 348.1MB). Free memory was 65.7MB in the beginning and 144.6MB in the end (delta: -78.9MB). Peak memory consumption was 270.3MB. Max. memory is 16.1GB. [2021-11-17 02:03:12,189 INFO L158 Benchmark]: Witness Printer took 2.94ms. Allocated memory is still 490.7MB. Free memory is still 144.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-17 02:03:12,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 109.1MB. Free memory was 82.3MB in the beginning and 82.3MB in the end (delta: 32.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 874.91ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 70.9MB in the beginning and 102.4MB in the end (delta: -31.6MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.36ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 91.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.70ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 82.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1233.35ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 66.2MB in the end (delta: 15.9MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * TraceAbstraction took 22205.16ms. Allocated memory was 142.6MB in the beginning and 490.7MB in the end (delta: 348.1MB). Free memory was 65.7MB in the beginning and 144.6MB in the end (delta: -78.9MB). Peak memory consumption was 270.3MB. Max. memory is 16.1GB. * Witness Printer took 2.94ms. Allocated memory is still 490.7MB. Free memory is still 144.6MB. 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={21:0}, ldvarg3={19:0}, major=0, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, calloc(1UL, size)={-18446744073709551617:0}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, calloc(1UL, size)={-18446744073709551617:0}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, cond=1, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, calloc(1UL, size)={-18446744073709551617:0}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, calloc(1UL, size)={-18446744073709551617:0}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={21:0}, ldvarg3={19:0}, major=0, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={21:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, c=0, features={17:0}, id_table={14:0}, 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={21:0}, s={21:0}, tmp={21:0}, virtblk_fops={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg1), 0, 8UL)={21:0}, 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={21:0}, ldvarg3={19:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, virtblk_fops={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={19:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, c=0, features={17:0}, id_table={14:0}, 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={19:0}, s={19:0}, tmp={19:0}, virtblk_fops={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg3), 0, 4UL)={19:0}, 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={21:0}, ldvarg3={19:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, virtblk_fops={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={21:0}, ldvarg2=1447184708, ldvarg3={19:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, virtblk_fops={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={21:0}, ldvarg2=1447184708, ldvarg3={19:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=1, virtblk_fops={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={21:0}, ldvarg2=1447184708, ldvarg3={19:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=1, tmp___2=1, virtblk_fops={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, calloc(1UL, size)={-36893488147419103233:0}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, calloc(1UL, size)={-36893488147419103233:0}, features={17:0}, id_table={14:0}, 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={-36893488147419103233:0}, ref_cnt=0, size=464, tmp={-36893488147419103233:0}, virtblk_fops={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, cond=1, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, calloc(1UL, size)={-36893488147419103233:0}, features={17:0}, id_table={14:0}, 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={-36893488147419103233:0}, ref_cnt=0, size=464, tmp={-36893488147419103233:0}, virtblk_fops={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [\old(size)=464, \result={-36893488147419103233:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, calloc(1UL, size)={-36893488147419103233:0}, features={17:0}, id_table={14:0}, 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={-36893488147419103233:0}, ref_cnt=0, size=464, tmp={-36893488147419103233:0}, virtblk_fops={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_init_zalloc(464UL)={-36893488147419103233:0}, 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={15:0}, virtblk_fops_group0={0:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-36893488147419103233:0}, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, calloc(1UL, size)={-55340232221128654849:0}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, calloc(1UL, size)={-55340232221128654849:0}, features={17:0}, id_table={14:0}, 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={-55340232221128654849:0}, ref_cnt=0, size=1048, tmp={-55340232221128654849:0}, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, cond=1, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, calloc(1UL, size)={-55340232221128654849:0}, features={17:0}, id_table={14:0}, 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={-55340232221128654849:0}, ref_cnt=0, size=1048, tmp={-55340232221128654849:0}, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [\old(size)=1048, \result={-55340232221128654849:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, calloc(1UL, size)={-55340232221128654849:0}, features={17:0}, id_table={14:0}, 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={-55340232221128654849:0}, ref_cnt=0, size=1048, tmp={-55340232221128654849:0}, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1048UL)={-55340232221128654849:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, 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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-55340232221128654849:0}, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={21:0}, ldvarg2=1447184708, ldvarg3={19:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=1, tmp___2=1, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={21:0}, ldvarg2=1447184708, ldvarg3={19:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=2, tmp___2=1, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={21:0}, ldvarg2=1447184708, ldvarg3={19:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=2, tmp___2=1, tmp___3=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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=1, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, arg0={4294967301:4294967304}, arg0={4294967301:4294967304}, arg1={13:0}, arg1={13:0}, arg2=20, arg3=208, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4216] bool tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L3734] RET, EXPR IS_ERR((void const *)bio) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, bio={0:0}, disk={4294967302:23}, disk={4294967302:23}, features={17:0}, id_str={13:0}, id_str={13:0}, id_table={14:0}, 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={-18446744073709549604:-8}, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4312] COND FALSE !(ldv_blk_rq != 0) VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4316] CALL, EXPR ldv_malloc(sizeof(struct request)) VAL [\old(size)=322, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ref_cnt=0, size=322, tmp={-18446744073709549604:0}, tmp___0=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L3249] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, cond=1, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ref_cnt=0, size=322, tmp={-18446744073709549604:0}, tmp___0=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L3265] CALL, EXPR IS_ERR(p) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4216] bool tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, tmp=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L3265] RET, EXPR IS_ERR(p) VAL [\old(size)=322, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ref_cnt=0, size=322, tmp={-18446744073709549604:0}, tmp___0=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L3249] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, cond=1, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ref_cnt=0, size=322, tmp={-18446744073709549604:0}, tmp___0=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L3266] return (p); VAL [\old(size)=322, \result={-18446744073709549604:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ref_cnt=0, size=322, tmp={-18446744073709549604:0}, tmp___0=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4316] RET, EXPR ldv_malloc(sizeof(struct request)) VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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=0, mask=208, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L3333] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, c=0, exp=0, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4279] RET, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, tmp=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, tmp___0=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4326] return (res); VAL [\old(mask)=208, \result={-18446744073709549604:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, tmp___0=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, index=0, ldv_blk_rq=1, ldv_func_arg1={4294967301:4294967304}, ldv_func_arg1={4294967301:4294967304}, 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={-18446744073709549604:0}, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4216] bool tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={-18446744073709549604:0}, ptr={-18446744073709549604:0}, ref_cnt=0, tmp=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L3741] RET, EXPR IS_ERR((void const *)req) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, bio={0:0}, disk={4294967302:23}, disk={4294967302:23}, features={17:0}, id_str={13:0}, id_str={13:0}, id_table={14:0}, 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={-18446744073709549604:0}, tmp___0=0, vblk={-18446744073709549604:-8}, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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=26, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, bio={0:0}, disk={4294967302:23}, disk={4294967302:23}, features={17:0}, id_str={13:0}, id_str={13:0}, id_table={14:0}, 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={-18446744073709549604:0}, tmp___0=0, tmp___2=0, tmp___3=26, vblk={-18446744073709549604:-8}, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, bdev={-36893488147419103233:0}, bdev={-36893488147419103233:0}, cmd=1447184708, data=0, disk={4294967302:23}, err=26, features={17:0}, id_str={13:0}, id_table={14:0}, 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={-18446744073709549604:-8}, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L3779] return (err); [L3779] return (err); VAL [\old(cmd)=1447184708, \old(data)=0, \old(mode)=0, \result=26, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, bdev={-36893488147419103233:0}, bdev={-36893488147419103233:0}, cmd=1447184708, data=0, disk={4294967302:23}, err=26, features={17:0}, id_table={14:0}, 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={-18446744073709549604:-8}, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={21:0}, ldvarg2=1447184708, ldvarg3={19:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=2, tmp___2=1, tmp___3=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={21:0}, ldvarg2=1447184708, ldvarg3={19:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=1, tmp___2=1, tmp___3=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={21:0}, ldvarg2=1447184708, ldvarg3={19:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=1, tmp___2=0, tmp___3=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={21:0}, ldvarg2=1447184708, ldvarg3={19:0}, major=0, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0=1, tmp___2=0, tmp___3=0, virtblk_fops={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [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={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4344] CALL ldv_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] [L4236] reach_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={4294967297:4294967296}, features={17:0}, id_table={14:0}, 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={15:0}, virtblk_fops_group0={-36893488147419103233:0}, virtio_blk={18:0}, virtio_blk_group0={-55340232221128654849:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 459 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.0s, OverallIterations: 10, TraceHistogramMax: 12, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7005 SdHoareTripleChecker+Valid, 9.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6624 mSDsluCounter, 30450 SdHoareTripleChecker+Invalid, 7.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25281 mSDsCounter, 4482 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10351 IncrementalHoareTripleChecker+Invalid, 14833 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4482 mSolverCounterUnsat, 5169 mSDtfsCounter, 10351 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1662 GetRequests, 1505 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 865 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3047occurred in iteration=9, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 8698 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 2133 NumberOfCodeBlocks, 2133 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2472 ConstructedInterpolants, 0 QuantifiedInterpolants, 3721 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4862 ConjunctsInSsa, 67 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 [2021-11-17 02:03:12,243 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 0.2.1-dev-0f8a17c [2021-11-17 02:03:13,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 02:03:13,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 02:03:13,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 02:03:13,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 02:03:13,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 02:03:13,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 02:03:13,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 02:03:13,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 02:03:13,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 02:03:13,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 02:03:13,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 02:03:13,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 02:03:13,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 02:03:13,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 02:03:13,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 02:03:13,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 02:03:13,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 02:03:13,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 02:03:13,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 02:03:13,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 02:03:13,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 02:03:13,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 02:03:13,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 02:03:13,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 02:03:13,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 02:03:13,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 02:03:13,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 02:03:13,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 02:03:13,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 02:03:13,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 02:03:13,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 02:03:13,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 02:03:13,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 02:03:13,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 02:03:13,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 02:03:13,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 02:03:13,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 02:03:13,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 02:03:13,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 02:03:13,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 02:03:13,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-17 02:03:14,014 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 02:03:14,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 02:03:14,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 02:03:14,015 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 02:03:14,016 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 02:03:14,016 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 02:03:14,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 02:03:14,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 02:03:14,017 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 02:03:14,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 02:03:14,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 02:03:14,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 02:03:14,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 02:03:14,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 02:03:14,018 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-17 02:03:14,019 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-17 02:03:14,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 02:03:14,019 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 02:03:14,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 02:03:14,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 02:03:14,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 02:03:14,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 02:03:14,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 02:03:14,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 02:03:14,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 02:03:14,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 02:03:14,020 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-17 02:03:14,020 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-17 02:03:14,020 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 02:03:14,020 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 02:03:14,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 02:03:14,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 02:03:14,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-17 02:03:14,021 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8946ad2f029076f7c4f90de60a8c48e069f80fec06a0c6d7a5dc3a1fc4182879 [2021-11-17 02:03:14,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 02:03:14,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 02:03:14,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 02:03:14,279 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 02:03:14,281 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 02:03:14,282 INFO L432 ainManager$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 [2021-11-17 02:03:14,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6bc834c0/ffa9cb024a8d4216a2ceb009ee51731a/FLAG26e5e9e16 [2021-11-17 02:03:14,878 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 02:03:14,878 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 [2021-11-17 02:03:14,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6bc834c0/ffa9cb024a8d4216a2ceb009ee51731a/FLAG26e5e9e16 [2021-11-17 02:03:15,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6bc834c0/ffa9cb024a8d4216a2ceb009ee51731a [2021-11-17 02:03:15,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 02:03:15,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 02:03:15,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 02:03:15,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 02:03:15,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 02:03:15,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:03:15" (1/1) ... [2021-11-17 02:03:15,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ee520d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:03:15, skipping insertion in model container [2021-11-17 02:03:15,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:03:15" (1/1) ... [2021-11-17 02:03:15,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 02:03:15,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 02:03:16,132 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] [2021-11-17 02:03:16,161 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 02:03:16,178 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 02:03:16,360 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] [2021-11-17 02:03:16,371 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 02:03:16,418 INFO L208 MainTranslator]: Completed translation [2021-11-17 02:03:16,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:03:16 WrapperNode [2021-11-17 02:03:16,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 02:03:16,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 02:03:16,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 02:03:16,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 02:03:16,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:03:16" (1/1) ... [2021-11-17 02:03:16,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:03:16" (1/1) ... [2021-11-17 02:03:16,524 INFO L137 Inliner]: procedures = 149, calls = 521, calls flagged for inlining = 83, calls inlined = 83, statements flattened = 1601 [2021-11-17 02:03:16,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 02:03:16,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 02:03:16,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 02:03:16,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 02:03:16,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:03:16" (1/1) ... [2021-11-17 02:03:16,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:03:16" (1/1) ... [2021-11-17 02:03:16,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:03:16" (1/1) ... [2021-11-17 02:03:16,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:03:16" (1/1) ... [2021-11-17 02:03:16,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:03:16" (1/1) ... [2021-11-17 02:03:16,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:03:16" (1/1) ... [2021-11-17 02:03:16,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:03:16" (1/1) ... [2021-11-17 02:03:16,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 02:03:16,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 02:03:16,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 02:03:16,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 02:03:16,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:03:16" (1/1) ... [2021-11-17 02:03:16,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 02:03:16,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:03:16,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 02:03:16,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 02:03:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2021-11-17 02:03:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2021-11-17 02:03:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-17 02:03:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-17 02:03:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-17 02:03:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2021-11-17 02:03:16,692 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2021-11-17 02:03:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-17 02:03:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 02:03:16,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 02:03:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 02:03:16,692 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 02:03:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2021-11-17 02:03:16,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2021-11-17 02:03:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2021-11-17 02:03:16,693 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2021-11-17 02:03:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 02:03:16,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 02:03:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2021-11-17 02:03:16,693 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2021-11-17 02:03:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2021-11-17 02:03:16,693 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2021-11-17 02:03:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 02:03:16,694 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 02:03:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 02:03:16,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 02:03:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 02:03:16,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 02:03:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2021-11-17 02:03:16,695 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2021-11-17 02:03:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 02:03:16,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 02:03:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 02:03:16,695 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 02:03:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 02:03:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 02:03:16,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 02:03:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 02:03:16,696 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 02:03:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 02:03:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2021-11-17 02:03:16,696 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2021-11-17 02:03:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 02:03:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 02:03:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 02:03:16,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 02:03:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2021-11-17 02:03:16,697 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2021-11-17 02:03:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2021-11-17 02:03:16,698 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2021-11-17 02:03:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 02:03:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-17 02:03:16,698 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-17 02:03:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 02:03:16,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 02:03:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-17 02:03:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-17 02:03:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-17 02:03:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 02:03:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-17 02:03:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 02:03:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-17 02:03:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-17 02:03:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-11-17 02:03:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-11-17 02:03:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2021-11-17 02:03:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2021-11-17 02:03:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 02:03:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 02:03:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-17 02:03:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-17 02:03:17,064 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 02:03:17,066 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 02:03:17,782 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 02:03:19,081 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 02:03:19,096 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 02:03:19,097 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 02:03:19,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 02:03:19 BoogieIcfgContainer [2021-11-17 02:03:19,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 02:03:19,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 02:03:19,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 02:03:19,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 02:03:19,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 02:03:15" (1/3) ... [2021-11-17 02:03:19,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b0769c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:03:19, skipping insertion in model container [2021-11-17 02:03:19,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:03:16" (2/3) ... [2021-11-17 02:03:19,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b0769c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:03:19, skipping insertion in model container [2021-11-17 02:03:19,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 02:03:19" (3/3) ... [2021-11-17 02:03:19,105 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 [2021-11-17 02:03:19,109 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 02:03:19,109 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 02:03:19,140 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 02:03:19,145 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 02:03:19,145 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 02:03:19,161 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) [2021-11-17 02:03:19,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-17 02:03:19,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:19,166 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] [2021-11-17 02:03:19,167 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:19,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:19,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1119521097, now seen corresponding path program 1 times [2021-11-17 02:03:19,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 02:03:19,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883640679] [2021-11-17 02:03:19,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:03:19,180 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 02:03:19,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 02:03:19,182 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) [2021-11-17 02:03:19,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-17 02:03:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:19,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-17 02:03:19,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:03:19,652 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-17 02:03:19,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:03:19,776 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-17 02:03:19,777 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 02:03:19,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883640679] [2021-11-17 02:03:19,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883640679] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 02:03:19,778 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:03:19,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-17 02:03:19,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991567520] [2021-11-17 02:03:19,782 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 02:03:19,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-17 02:03:19,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 02:03:19,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-17 02:03:19,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-17 02:03:19,814 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 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 02:03:19,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:19,881 INFO L93 Difference]: Finished difference Result 909 states and 1235 transitions. [2021-11-17 02:03:19,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-17 02:03:19,885 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2021-11-17 02:03:19,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:19,902 INFO L225 Difference]: With dead ends: 909 [2021-11-17 02:03:19,902 INFO L226 Difference]: Without dead ends: 439 [2021-11-17 02:03:19,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-17 02:03:19,915 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 [2021-11-17 02:03:19,917 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] [2021-11-17 02:03:19,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-11-17 02:03:19,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2021-11-17 02:03:19,992 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) [2021-11-17 02:03:19,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 578 transitions. [2021-11-17 02:03:19,999 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 578 transitions. Word has length 46 [2021-11-17 02:03:19,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:20,000 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 578 transitions. [2021-11-17 02:03:20,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 02:03:20,002 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 578 transitions. [2021-11-17 02:03:20,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-17 02:03:20,005 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:20,006 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] [2021-11-17 02:03:20,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-17 02:03:20,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 02:03:20,216 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:20,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:20,216 INFO L85 PathProgramCache]: Analyzing trace with hash 275515595, now seen corresponding path program 1 times [2021-11-17 02:03:20,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 02:03:20,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410657853] [2021-11-17 02:03:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:03:20,217 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 02:03:20,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 02:03:20,219 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) [2021-11-17 02:03:20,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-17 02:03:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:20,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-17 02:03:20,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:03:20,590 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 02:03:20,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:03:20,748 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-17 02:03:20,748 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 02:03:20,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410657853] [2021-11-17 02:03:20,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410657853] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-17 02:03:20,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 02:03:20,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2021-11-17 02:03:20,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128521354] [2021-11-17 02:03:20,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:03:20,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 02:03:20,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 02:03:20,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 02:03:20,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:03:20,752 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) [2021-11-17 02:03:20,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:20,833 INFO L93 Difference]: Finished difference Result 876 states and 1154 transitions. [2021-11-17 02:03:20,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 02:03:20,834 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 [2021-11-17 02:03:20,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:20,837 INFO L225 Difference]: With dead ends: 876 [2021-11-17 02:03:20,837 INFO L226 Difference]: Without dead ends: 440 [2021-11-17 02:03:20,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-17 02:03:20,839 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 [2021-11-17 02:03:20,843 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] [2021-11-17 02:03:20,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-11-17 02:03:20,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2021-11-17 02:03:20,863 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) [2021-11-17 02:03:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 579 transitions. [2021-11-17 02:03:20,866 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 579 transitions. Word has length 46 [2021-11-17 02:03:20,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:20,867 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 579 transitions. [2021-11-17 02:03:20,867 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) [2021-11-17 02:03:20,867 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 579 transitions. [2021-11-17 02:03:20,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-17 02:03:20,871 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:20,871 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] [2021-11-17 02:03:20,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-17 02:03:21,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 02:03:21,088 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:21,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:21,088 INFO L85 PathProgramCache]: Analyzing trace with hash 204883235, now seen corresponding path program 1 times [2021-11-17 02:03:21,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 02:03:21,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079245565] [2021-11-17 02:03:21,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:03:21,089 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 02:03:21,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 02:03:21,090 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) [2021-11-17 02:03:21,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-17 02:03:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:21,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-17 02:03:21,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:03:21,473 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-17 02:03:21,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:03:21,687 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-17 02:03:21,687 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 02:03:21,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079245565] [2021-11-17 02:03:21,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079245565] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 02:03:21,687 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 02:03:21,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-17 02:03:21,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668778655] [2021-11-17 02:03:21,687 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 02:03:21,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 02:03:21,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 02:03:21,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 02:03:21,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 02:03:21,688 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) [2021-11-17 02:03:21,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:21,896 INFO L93 Difference]: Finished difference Result 887 states and 1169 transitions. [2021-11-17 02:03:21,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 02:03:21,897 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 [2021-11-17 02:03:21,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:21,900 INFO L225 Difference]: With dead ends: 887 [2021-11-17 02:03:21,900 INFO L226 Difference]: Without dead ends: 450 [2021-11-17 02:03:21,901 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 [2021-11-17 02:03:21,902 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 15 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 02:03:21,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 1726 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 02:03:21,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2021-11-17 02:03:21,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2021-11-17 02:03:21,913 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) [2021-11-17 02:03:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 591 transitions. [2021-11-17 02:03:21,915 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 591 transitions. Word has length 48 [2021-11-17 02:03:21,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:21,915 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 591 transitions. [2021-11-17 02:03:21,915 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) [2021-11-17 02:03:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 591 transitions. [2021-11-17 02:03:21,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-17 02:03:21,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:21,916 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] [2021-11-17 02:03:21,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-17 02:03:22,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 02:03:22,127 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:22,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:22,128 INFO L85 PathProgramCache]: Analyzing trace with hash 647289995, now seen corresponding path program 2 times [2021-11-17 02:03:22,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 02:03:22,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34522259] [2021-11-17 02:03:22,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 02:03:22,129 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 02:03:22,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 02:03:22,132 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) [2021-11-17 02:03:22,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-17 02:03:22,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-17 02:03:22,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-17 02:03:22,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 02:03:22,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:03:22,426 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-17 02:03:22,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:03:22,509 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-17 02:03:22,509 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 02:03:22,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34522259] [2021-11-17 02:03:22,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34522259] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 02:03:22,510 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:03:22,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-17 02:03:22,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407218870] [2021-11-17 02:03:22,510 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 02:03:22,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 02:03:22,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 02:03:22,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 02:03:22,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-17 02:03:22,511 INFO L87 Difference]: Start difference. First operand 450 states and 591 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2021-11-17 02:03:23,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:23,296 INFO L93 Difference]: Finished difference Result 1680 states and 2220 transitions. [2021-11-17 02:03:23,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 02:03:23,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 [2021-11-17 02:03:23,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:23,302 INFO L225 Difference]: With dead ends: 1680 [2021-11-17 02:03:23,302 INFO L226 Difference]: Without dead ends: 1255 [2021-11-17 02:03:23,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-17 02:03:23,304 INFO L933 BasicCegarLoop]: 721 mSDtfsCounter, 1457 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-17 02:03:23,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1457 Valid, 1662 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-17 02:03:23,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2021-11-17 02:03:23,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1249. [2021-11-17 02:03:23,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 958 states have (on average 1.2640918580375784) internal successors, (1211), 971 states have internal predecessors, (1211), 221 states have call successors, (221), 70 states have call predecessors, (221), 69 states have return successors, (219), 219 states have call predecessors, (219), 219 states have call successors, (219) [2021-11-17 02:03:23,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1651 transitions. [2021-11-17 02:03:23,338 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1651 transitions. Word has length 52 [2021-11-17 02:03:23,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:23,338 INFO L470 AbstractCegarLoop]: Abstraction has 1249 states and 1651 transitions. [2021-11-17 02:03:23,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2021-11-17 02:03:23,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1651 transitions. [2021-11-17 02:03:23,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-17 02:03:23,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:23,340 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] [2021-11-17 02:03:23,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-17 02:03:23,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 02:03:23,548 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:23,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:23,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1975753054, now seen corresponding path program 1 times [2021-11-17 02:03:23,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 02:03:23,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696673618] [2021-11-17 02:03:23,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:03:23,549 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 02:03:23,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 02:03:23,550 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) [2021-11-17 02:03:23,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-17 02:03:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:23,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-17 02:03:23,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:03:23,962 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-17 02:03:23,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:03:24,522 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-17 02:03:24,523 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 02:03:24,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696673618] [2021-11-17 02:03:24,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696673618] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 02:03:24,523 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 02:03:24,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-11-17 02:03:24,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166300420] [2021-11-17 02:03:24,523 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 02:03:24,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-17 02:03:24,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 02:03:24,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-17 02:03:24,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-11-17 02:03:24,524 INFO L87 Difference]: Start difference. First operand 1249 states and 1651 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) [2021-11-17 02:03:25,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:25,193 INFO L93 Difference]: Finished difference Result 2491 states and 3298 transitions. [2021-11-17 02:03:25,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 02:03:25,194 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 [2021-11-17 02:03:25,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:25,201 INFO L225 Difference]: With dead ends: 2491 [2021-11-17 02:03:25,201 INFO L226 Difference]: Without dead ends: 1261 [2021-11-17 02:03:25,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2021-11-17 02:03:25,205 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 42 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 4035 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-17 02:03:25,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 4035 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-17 02:03:25,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2021-11-17 02:03:25,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1255. [2021-11-17 02:03:25,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 964 states have (on average 1.2634854771784232) internal successors, (1218), 977 states have internal predecessors, (1218), 221 states have call successors, (221), 70 states have call predecessors, (221), 69 states have return successors, (219), 219 states have call predecessors, (219), 219 states have call successors, (219) [2021-11-17 02:03:25,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1658 transitions. [2021-11-17 02:03:25,261 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1658 transitions. Word has length 55 [2021-11-17 02:03:25,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:25,262 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1658 transitions. [2021-11-17 02:03:25,262 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) [2021-11-17 02:03:25,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1658 transitions. [2021-11-17 02:03:25,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-17 02:03:25,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:25,265 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] [2021-11-17 02:03:25,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-17 02:03:25,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 02:03:25,477 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:25,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:25,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1015347678, now seen corresponding path program 2 times [2021-11-17 02:03:25,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 02:03:25,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661707743] [2021-11-17 02:03:25,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 02:03:25,479 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 02:03:25,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 02:03:25,480 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) [2021-11-17 02:03:25,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-17 02:03:25,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-17 02:03:25,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-17 02:03:25,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 02:03:25,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:03:25,819 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-17 02:03:25,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:03:25,922 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-17 02:03:25,923 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 02:03:25,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661707743] [2021-11-17 02:03:25,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661707743] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 02:03:25,923 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:03:25,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-17 02:03:25,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159876987] [2021-11-17 02:03:25,923 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 02:03:25,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 02:03:25,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 02:03:25,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 02:03:25,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 02:03:25,925 INFO L87 Difference]: Start difference. First operand 1255 states and 1658 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-17 02:03:25,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:25,972 INFO L93 Difference]: Finished difference Result 2445 states and 3236 transitions. [2021-11-17 02:03:25,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 02:03:25,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 59 [2021-11-17 02:03:25,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:25,983 INFO L225 Difference]: With dead ends: 2445 [2021-11-17 02:03:25,984 INFO L226 Difference]: Without dead ends: 2436 [2021-11-17 02:03:25,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 02:03:25,986 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 [2021-11-17 02:03:25,986 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] [2021-11-17 02:03:25,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2021-11-17 02:03:26,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2436. [2021-11-17 02:03:26,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 1872 states have (on average 1.2638888888888888) internal successors, (2366), 1897 states have internal predecessors, (2366), 429 states have call successors, (429), 135 states have call predecessors, (429), 134 states have return successors, (427), 427 states have call predecessors, (427), 427 states have call successors, (427) [2021-11-17 02:03:26,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3222 transitions. [2021-11-17 02:03:26,062 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3222 transitions. Word has length 59 [2021-11-17 02:03:26,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:26,064 INFO L470 AbstractCegarLoop]: Abstraction has 2436 states and 3222 transitions. [2021-11-17 02:03:26,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-17 02:03:26,064 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3222 transitions. [2021-11-17 02:03:26,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-17 02:03:26,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:26,068 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] [2021-11-17 02:03:26,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-17 02:03:26,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 02:03:26,279 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:26,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:26,280 INFO L85 PathProgramCache]: Analyzing trace with hash -636118632, now seen corresponding path program 1 times [2021-11-17 02:03:26,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 02:03:26,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139716916] [2021-11-17 02:03:26,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:03:26,281 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 02:03:26,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 02:03:26,282 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) [2021-11-17 02:03:26,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-17 02:03:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:26,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 02:03:26,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:03:26,878 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-17 02:03:26,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:03:27,267 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-17 02:03:27,267 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 02:03:27,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139716916] [2021-11-17 02:03:27,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139716916] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 02:03:27,267 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 02:03:27,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-17 02:03:27,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761463221] [2021-11-17 02:03:27,267 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 02:03:27,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 02:03:27,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 02:03:27,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 02:03:27,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:03:27,268 INFO L87 Difference]: Start difference. First operand 2436 states and 3222 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) [2021-11-17 02:03:27,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:27,477 INFO L93 Difference]: Finished difference Result 4838 states and 6404 transitions. [2021-11-17 02:03:27,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 02:03:27,478 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 [2021-11-17 02:03:27,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:27,489 INFO L225 Difference]: With dead ends: 4838 [2021-11-17 02:03:27,489 INFO L226 Difference]: Without dead ends: 2436 [2021-11-17 02:03:27,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-11-17 02:03:27,497 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 21 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 02:03:27,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 2869 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 02:03:27,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2021-11-17 02:03:27,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2436. [2021-11-17 02:03:27,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 1872 states have (on average 1.2617521367521367) internal successors, (2362), 1897 states have internal predecessors, (2362), 429 states have call successors, (429), 135 states have call predecessors, (429), 134 states have return successors, (427), 427 states have call predecessors, (427), 427 states have call successors, (427) [2021-11-17 02:03:27,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3218 transitions. [2021-11-17 02:03:27,555 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3218 transitions. Word has length 120 [2021-11-17 02:03:27,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:27,555 INFO L470 AbstractCegarLoop]: Abstraction has 2436 states and 3218 transitions. [2021-11-17 02:03:27,555 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) [2021-11-17 02:03:27,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3218 transitions. [2021-11-17 02:03:27,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-17 02:03:27,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:27,558 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] [2021-11-17 02:03:27,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-17 02:03:27,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 02:03:27,788 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:27,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:27,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1966175016, now seen corresponding path program 2 times [2021-11-17 02:03:27,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 02:03:27,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128708195] [2021-11-17 02:03:27,789 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 02:03:27,789 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 02:03:27,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 02:03:27,794 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) [2021-11-17 02:03:27,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-17 02:03:28,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-17 02:03:28,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-17 02:03:28,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 02:03:28,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:03:28,663 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-11-17 02:03:28,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:03:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-11-17 02:03:28,849 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 02:03:28,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128708195] [2021-11-17 02:03:28,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128708195] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 02:03:28,850 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:03:28,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-17 02:03:28,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323574488] [2021-11-17 02:03:28,850 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 02:03:28,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 02:03:28,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 02:03:28,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 02:03:28,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 02:03:28,851 INFO L87 Difference]: Start difference. First operand 2436 states and 3218 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 02:03:28,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:28,963 INFO L93 Difference]: Finished difference Result 6897 states and 9108 transitions. [2021-11-17 02:03:28,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 02:03:28,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 122 [2021-11-17 02:03:28,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:28,999 INFO L225 Difference]: With dead ends: 6897 [2021-11-17 02:03:28,999 INFO L226 Difference]: Without dead ends: 4502 [2021-11-17 02:03:29,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 02:03:29,005 INFO L933 BasicCegarLoop]: 654 mSDtfsCounter, 485 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 02:03:29,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 1206 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 02:03:29,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4502 states. [2021-11-17 02:03:29,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4502 to 4494. [2021-11-17 02:03:29,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4494 states, 3438 states have (on average 1.2600349040139616) internal successors, (4332), 3487 states have internal predecessors, (4332), 795 states have call successors, (795), 261 states have call predecessors, (795), 260 states have return successors, (793), 793 states have call predecessors, (793), 793 states have call successors, (793) [2021-11-17 02:03:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4494 states to 4494 states and 5920 transitions. [2021-11-17 02:03:29,115 INFO L78 Accepts]: Start accepts. Automaton has 4494 states and 5920 transitions. Word has length 122 [2021-11-17 02:03:29,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:29,115 INFO L470 AbstractCegarLoop]: Abstraction has 4494 states and 5920 transitions. [2021-11-17 02:03:29,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 02:03:29,116 INFO L276 IsEmpty]: Start isEmpty. Operand 4494 states and 5920 transitions. [2021-11-17 02:03:29,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-17 02:03:29,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:29,123 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] [2021-11-17 02:03:29,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-17 02:03:29,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 02:03:29,343 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:29,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:29,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1914519532, now seen corresponding path program 1 times [2021-11-17 02:03:29,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 02:03:29,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749972026] [2021-11-17 02:03:29,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:03:29,344 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 02:03:29,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 02:03:29,345 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) [2021-11-17 02:03:29,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-17 02:03:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:29,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-17 02:03:29,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:03:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-17 02:03:29,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:03:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-11-17 02:03:30,182 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 02:03:30,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749972026] [2021-11-17 02:03:30,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749972026] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 02:03:30,182 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:03:30,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-17 02:03:30,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80826607] [2021-11-17 02:03:30,182 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 02:03:30,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:03:30,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 02:03:30,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:03:30,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:03:30,184 INFO L87 Difference]: Start difference. First operand 4494 states and 5920 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-17 02:03:30,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:30,440 INFO L93 Difference]: Finished difference Result 7848 states and 10343 transitions. [2021-11-17 02:03:30,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 02:03:30,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 165 [2021-11-17 02:03:30,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:30,455 INFO L225 Difference]: With dead ends: 7848 [2021-11-17 02:03:30,455 INFO L226 Difference]: Without dead ends: 3387 [2021-11-17 02:03:30,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-17 02:03:30,468 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 20 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 02:03:30,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 2308 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 02:03:30,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3387 states. [2021-11-17 02:03:30,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3387 to 3362. [2021-11-17 02:03:30,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 2568 states have (on average 1.2581775700934579) internal successors, (3231), 2605 states have internal predecessors, (3231), 596 states have call successors, (596), 198 states have call predecessors, (596), 197 states have return successors, (594), 594 states have call predecessors, (594), 594 states have call successors, (594) [2021-11-17 02:03:30,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 4421 transitions. [2021-11-17 02:03:30,550 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 4421 transitions. Word has length 165 [2021-11-17 02:03:30,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:30,550 INFO L470 AbstractCegarLoop]: Abstraction has 3362 states and 4421 transitions. [2021-11-17 02:03:30,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-17 02:03:30,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 4421 transitions. [2021-11-17 02:03:30,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-17 02:03:30,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:30,555 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] [2021-11-17 02:03:30,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-17 02:03:30,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 02:03:30,772 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:30,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:30,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1601551212, now seen corresponding path program 1 times [2021-11-17 02:03:30,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 02:03:30,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289940187] [2021-11-17 02:03:30,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:03:30,773 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 02:03:30,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 02:03:30,775 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) [2021-11-17 02:03:30,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-17 02:03:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:31,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 02:03:31,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:03:31,404 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2021-11-17 02:03:31,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 02:03:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-17 02:03:31,689 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-17 02:03:31,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289940187] [2021-11-17 02:03:31,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289940187] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-17 02:03:31,689 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:03:31,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-17 02:03:31,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826805949] [2021-11-17 02:03:31,689 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-17 02:03:31,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 02:03:31,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-17 02:03:31,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 02:03:31,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 02:03:31,691 INFO L87 Difference]: Start difference. First operand 3362 states and 4421 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 6 states have internal predecessors, (99), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 02:03:31,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:31,803 INFO L93 Difference]: Finished difference Result 6364 states and 8435 transitions. [2021-11-17 02:03:31,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 02:03:31,804 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 6 states have internal predecessors, (99), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 166 [2021-11-17 02:03:31,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:31,819 INFO L225 Difference]: With dead ends: 6364 [2021-11-17 02:03:31,819 INFO L226 Difference]: Without dead ends: 3380 [2021-11-17 02:03:31,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 02:03:31,828 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 0 mSDsluCounter, 2873 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3450 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 02:03:31,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3450 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 02:03:31,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3380 states. [2021-11-17 02:03:31,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3380 to 3366. [2021-11-17 02:03:31,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 2570 states have (on average 1.257976653696498) internal successors, (3233), 2609 states have internal predecessors, (3233), 596 states have call successors, (596), 198 states have call predecessors, (596), 199 states have return successors, (610), 594 states have call predecessors, (610), 594 states have call successors, (610) [2021-11-17 02:03:31,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 4439 transitions. [2021-11-17 02:03:31,918 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 4439 transitions. Word has length 166 [2021-11-17 02:03:31,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:31,919 INFO L470 AbstractCegarLoop]: Abstraction has 3366 states and 4439 transitions. [2021-11-17 02:03:31,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 6 states have internal predecessors, (99), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 02:03:31,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 4439 transitions. [2021-11-17 02:03:31,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-17 02:03:31,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:31,924 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] [2021-11-17 02:03:31,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-17 02:03:32,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 02:03:32,140 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:32,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:32,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1476408975, now seen corresponding path program 1 times [2021-11-17 02:03:32,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-17 02:03:32,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103040453] [2021-11-17 02:03:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:03:32,142 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-17 02:03:32,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-17 02:03:32,142 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) [2021-11-17 02:03:32,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-17 02:03:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-17 02:03:34,898 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-17 02:03:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-17 02:03:38,328 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-17 02:03:38,329 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-17 02:03:38,330 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-17 02:03:38,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-17 02:03:38,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-17 02:03:38,546 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1] [2021-11-17 02:03:38,548 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-17 02:03:38,569 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,570 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,570 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,570 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,571 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,571 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,571 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,571 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,572 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,572 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,572 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,572 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,573 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,573 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,573 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,573 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,573 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,574 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,574 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,574 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,574 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,575 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:38,575 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,575 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:38,575 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,575 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:38,575 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,576 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:38,576 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,577 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,577 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,577 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,577 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,577 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,578 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,578 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,578 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,578 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,579 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,579 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,579 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,579 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:38,579 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,580 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:38,580 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,580 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:38,580 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2021-11-17 02:03:38,580 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2021-11-17 02:03:38,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 02:03:38 BoogieIcfgContainer [2021-11-17 02:03:38,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-17 02:03:38,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-17 02:03:38,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-17 02:03:38,695 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-17 02:03:38,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 02:03:19" (3/4) ... [2021-11-17 02:03:38,698 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-17 02:03:38,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-17 02:03:38,699 INFO L158 Benchmark]: Toolchain (without parser) took 23338.24ms. Allocated memory was 56.6MB in the beginning and 257.9MB in the end (delta: 201.3MB). Free memory was 33.4MB in the beginning and 109.8MB in the end (delta: -76.5MB). Peak memory consumption was 124.8MB. Max. memory is 16.1GB. [2021-11-17 02:03:38,699 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 44.0MB. Free memory was 26.0MB in the beginning and 25.9MB in the end (delta: 34.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-17 02:03:38,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1058.04ms. Allocated memory was 56.6MB in the beginning and 86.0MB in the end (delta: 29.4MB). Free memory was 33.2MB in the beginning and 48.1MB in the end (delta: -14.9MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2021-11-17 02:03:38,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.24ms. Allocated memory is still 86.0MB. Free memory was 48.1MB in the beginning and 38.1MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-17 02:03:38,700 INFO L158 Benchmark]: Boogie Preprocessor took 114.11ms. Allocated memory is still 86.0MB. Free memory was 38.1MB in the beginning and 41.0MB in the end (delta: -2.8MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2021-11-17 02:03:38,700 INFO L158 Benchmark]: RCFGBuilder took 2459.43ms. Allocated memory was 86.0MB in the beginning and 134.2MB in the end (delta: 48.2MB). Free memory was 40.6MB in the beginning and 72.2MB in the end (delta: -31.5MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2021-11-17 02:03:38,701 INFO L158 Benchmark]: TraceAbstraction took 19593.90ms. Allocated memory was 134.2MB in the beginning and 257.9MB in the end (delta: 123.7MB). Free memory was 71.4MB in the beginning and 110.9MB in the end (delta: -39.5MB). Peak memory consumption was 84.7MB. Max. memory is 16.1GB. [2021-11-17 02:03:38,701 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 257.9MB. Free memory was 110.9MB in the beginning and 109.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-17 02:03:38,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 44.0MB. Free memory was 26.0MB in the beginning and 25.9MB in the end (delta: 34.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1058.04ms. Allocated memory was 56.6MB in the beginning and 86.0MB in the end (delta: 29.4MB). Free memory was 33.2MB in the beginning and 48.1MB in the end (delta: -14.9MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.24ms. Allocated memory is still 86.0MB. Free memory was 48.1MB in the beginning and 38.1MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.11ms. Allocated memory is still 86.0MB. Free memory was 38.1MB in the beginning and 41.0MB in the end (delta: -2.8MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2459.43ms. Allocated memory was 86.0MB in the beginning and 134.2MB in the end (delta: 48.2MB). Free memory was 40.6MB in the beginning and 72.2MB in the end (delta: -31.5MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * TraceAbstraction took 19593.90ms. Allocated memory was 134.2MB in the beginning and 257.9MB in the end (delta: 123.7MB). Free memory was 71.4MB in the beginning and 110.9MB in the end (delta: -39.5MB). Peak memory consumption was 84.7MB. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 257.9MB. Free memory was 110.9MB in the beginning and 109.8MB in the end (delta: 1.0MB). 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_#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 * 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={167:0}, ldvarg3={135:0}, major=0, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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)={32:0}, features={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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)={32:0}, features={62:0}, id_table={103:0}, 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={32:0}, ref_cnt=0, size=16, tmp={32:0}, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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)={32:0}, features={62:0}, id_table={103:0}, 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={32:0}, ref_cnt=0, size=16, tmp={32:0}, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [\old(size)=16, \result={32:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={32:0}, features={62:0}, id_table={103:0}, 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={32:0}, ref_cnt=0, size=16, tmp={32:0}, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_init_zalloc(16UL)={32:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg1={167:0}, ldvarg3={135:0}, major=0, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={167:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, c=null, features={62:0}, id_table={103:0}, 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={167:0}, s={167:0}, tmp={167:0}, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg1), 0, 8UL)={167:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={32:0}, ldvarg1={167:0}, ldvarg3={135:0}, major=0, ref_cnt=0, tmp={32:0}, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={135:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, c=null, features={62:0}, id_table={103:0}, 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={135:0}, s={135:0}, tmp={135:0}, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg3), 0, 4UL)={135:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={32:0}, ldvarg1={167:0}, ldvarg3={135:0}, major=0, ref_cnt=0, tmp={32:0}, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={32:0}, ldvarg1={167:0}, ldvarg2=1447184708, ldvarg3={135:0}, major=0, ref_cnt=0, tmp={32:0}, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={32:0}, ldvarg1={167:0}, ldvarg2=1447184708, ldvarg3={135:0}, major=0, ref_cnt=0, tmp={32:0}, tmp___0=1, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={32:0}, ldvarg1={167:0}, ldvarg2=1447184708, ldvarg3={135:0}, major=0, ref_cnt=0, tmp={32:0}, tmp___0=1, tmp___2=1, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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)={14:0}, features={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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)={14:0}, features={62:0}, id_table={103:0}, 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={14:0}, ref_cnt=0, size=464, tmp={14:0}, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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)={14:0}, features={62:0}, id_table={103:0}, 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={14:0}, ref_cnt=0, size=464, tmp={14:0}, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [\old(size)=464, \result={14:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={14:0}, features={62:0}, id_table={103:0}, 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={14:0}, ref_cnt=0, size=464, tmp={14:0}, virtblk_fops={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_init_zalloc(464UL)={14:0}, 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={101:0}, virtblk_fops_group0={0:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={14:0}, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, 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)={12:0}, features={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, 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)={12:0}, features={62:0}, id_table={103:0}, 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={12:0}, ref_cnt=0, size=1048, tmp={12:0}, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, 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)={12:0}, features={62:0}, id_table={103:0}, 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={12:0}, ref_cnt=0, size=1048, tmp={12:0}, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [\old(size)=1048, \result={12:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, calloc(1UL, size)={12:0}, features={62:0}, id_table={103:0}, 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={12:0}, ref_cnt=0, size=1048, tmp={12:0}, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1048UL)={12:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, 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={62:0}, id_table={103:0}, 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={12:0}, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={32:0}, ldvarg1={167:0}, ldvarg2=1447184708, ldvarg3={135:0}, major=0, ref_cnt=0, tmp={32:0}, tmp___0=1, tmp___2=1, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={32:0}, ldvarg1={167:0}, ldvarg2=1447184708, ldvarg3={135:0}, major=0, ref_cnt=0, tmp={32:0}, tmp___0=2, tmp___2=1, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={32:0}, ldvarg1={167:0}, ldvarg2=1447184708, ldvarg3={135:0}, major=0, ref_cnt=0, tmp={32:0}, tmp___0=2, tmp___2=1, tmp___3=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={144115188075855872:9216}, arg0={144115188075855872:9216}, arg1={133:0}, arg1={133:0}, arg2=20, arg3=208, features={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4216] bool tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_str={133:0}, id_str={133:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={24:0}, ref_cnt=0, size=322, tmp={24:0}, tmp___0=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={24:0}, ref_cnt=0, size=322, tmp={24:0}, tmp___0=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L3265] CALL, EXPR IS_ERR(p) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={24:0}, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4216] bool tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={24:0}, ptr={24:0}, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={24:0}, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={24:0}, ptr={24:0}, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={24:0}, ptr={24:0}, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={24:0}, ptr={24:0}, ref_cnt=0, tmp=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={24:0}, ref_cnt=0, size=322, tmp={24:0}, tmp___0=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={24:0}, ref_cnt=0, size=322, tmp={24:0}, tmp___0=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L3266] return (p); VAL [\old(size)=322, \result={24:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={24:0}, ref_cnt=0, size=322, tmp={24:0}, tmp___0=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct request))={24:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={24:0}, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={24:0}, ptr={24:0}, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={24:0}, ptr={24:0}, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={24:0}, ptr={24:0}, ref_cnt=0, tmp=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={24:0}, tmp___0=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4326] return (res); VAL [\old(mask)=208, \result={24:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={24:0}, tmp___0=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={24:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, index=0, ldv_blk_rq=1, ldv_func_arg1={144115188075855872:9216}, ldv_func_arg1={144115188075855872:9216}, 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={24:0}, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={24:0}, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4216] bool tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={24:0}, ptr={24:0}, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={24:0}, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={24:0}, ptr={24:0}, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={24:0}, ptr={24:0}, ref_cnt=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={24:0}, ptr={24:0}, ref_cnt=0, tmp=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_str={133:0}, id_str={133:0}, id_table={103:0}, 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={24:0}, tmp___0=0, vblk={0:0}, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_str={133:0}, id_str={133:0}, id_table={103:0}, 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={24:0}, tmp___0=0, tmp___2=0, tmp___3=2147483648, vblk={0:0}, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={14:0}, bdev={14:0}, cmd=1447184708, data=0, disk={0:0}, err=2147483648, features={62:0}, id_str={133:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={14:0}, bdev={14:0}, cmd=1447184708, data=0, disk={0:0}, err=2147483648, features={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={32:0}, ldvarg1={167:0}, ldvarg2=1447184708, ldvarg3={135:0}, major=0, ref_cnt=0, tmp={32:0}, tmp___0=2, tmp___2=1, tmp___3=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={32:0}, ldvarg1={167:0}, ldvarg2=1447184708, ldvarg3={135:0}, major=0, ref_cnt=0, tmp={32:0}, tmp___0=1, tmp___2=1, tmp___3=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={32:0}, ldvarg1={167:0}, ldvarg2=1447184708, ldvarg3={135:0}, major=0, ref_cnt=0, tmp={32:0}, tmp___0=1, tmp___2=0, tmp___3=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={32:0}, ldvarg1={167:0}, ldvarg2=1447184708, ldvarg3={135:0}, major=0, ref_cnt=0, tmp={32:0}, tmp___0=1, tmp___2=0, tmp___3=0, virtblk_fops={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [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={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4344] CALL ldv_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] [L4236] reach_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={62:0}, id_table={103:0}, 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={101:0}, virtblk_fops_group0={14:0}, virtio_blk={55:0}, virtio_blk_group0={12:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 458 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.4s, OverallIterations: 11, TraceHistogramMax: 12, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2572 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2572 mSDsluCounter, 20791 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14691 mSDsCounter, 209 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 442 IncrementalHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 209 mSolverCounterUnsat, 6100 mSDtfsCounter, 442 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1755 GetRequests, 1694 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4494occurred in iteration=8, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 59 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 1065 NumberOfCodeBlocks, 1035 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1738 ConstructedInterpolants, 0 QuantifiedInterpolants, 2314 SizeOfPredicates, 18 NumberOfNonLiveVariables, 4249 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 20 InterpolantComputations, 13 PerfectInterpolantSequences, 1281/1338 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 [2021-11-17 02:03:38,749 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