./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:10:37,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:37,280 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:10:37,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:37,286 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:37,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:37,312 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:37,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:37,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:37,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:37,315 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:37,316 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:37,316 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:37,317 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:10:37,318 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:37,318 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:37,319 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:10:37,319 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:10:37,320 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:37,321 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:10:37,322 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:10:37,322 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:10:37,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:37,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:37,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:37,325 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:37,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:37,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:37,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:37,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:37,328 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:37,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:37,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:37,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:37,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:37,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:37,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:37,332 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:10:37,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:10:37,332 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:37,333 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:37,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:37,334 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b [2023-11-12 00:10:37,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:37,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:37,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:37,691 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:37,691 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:37,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2023-11-12 00:10:40,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:41,354 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:41,356 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2023-11-12 00:10:41,400 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/data/dfc543c91/ee2f422cf2f24514981b04eca872854c/FLAGf6adecbba [2023-11-12 00:10:41,416 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/data/dfc543c91/ee2f422cf2f24514981b04eca872854c [2023-11-12 00:10:41,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:41,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:41,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:41,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:41,434 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:41,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:41" (1/1) ... [2023-11-12 00:10:41,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec6803d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:41, skipping insertion in model container [2023-11-12 00:10:41,436 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:41" (1/1) ... [2023-11-12 00:10:41,558 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:42,575 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2023-11-12 00:10:42,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:42,825 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:43,038 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2023-11-12 00:10:43,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:43,156 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:43,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:43 WrapperNode [2023-11-12 00:10:43,157 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:43,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:43,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:43,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:43,167 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:43" (1/1) ... [2023-11-12 00:10:43,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:43" (1/1) ... [2023-11-12 00:10:43,387 INFO L138 Inliner]: procedures = 117, calls = 568, calls flagged for inlining = 30, calls inlined = 25, statements flattened = 1094 [2023-11-12 00:10:43,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:43,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:43,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:43,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:43,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:43" (1/1) ... [2023-11-12 00:10:43,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:43" (1/1) ... [2023-11-12 00:10:43,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:43" (1/1) ... [2023-11-12 00:10:43,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:43" (1/1) ... [2023-11-12 00:10:43,461 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:43" (1/1) ... [2023-11-12 00:10:43,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:43" (1/1) ... [2023-11-12 00:10:43,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:43" (1/1) ... [2023-11-12 00:10:43,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:43" (1/1) ... [2023-11-12 00:10:43,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:43,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:43,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:43,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:43,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:43" (1/1) ... [2023-11-12 00:10:43,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:43,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:43,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:43,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:43,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:10:43,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:10:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:10:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:10:43,594 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:10:43,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2023-11-12 00:10:43,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2023-11-12 00:10:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2023-11-12 00:10:43,595 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2023-11-12 00:10:43,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:10:43,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:10:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-12 00:10:43,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-12 00:10:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:10:43,596 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:10:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:10:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2023-11-12 00:10:43,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2023-11-12 00:10:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:10:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:10:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:10:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:10:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:10:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:10:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2023-11-12 00:10:43,599 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2023-11-12 00:10:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:10:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:43,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:43,949 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:43,952 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:44,076 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:10:45,058 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:10:45,247 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:10:45,248 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:10:45,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:45 BoogieIcfgContainer [2023-11-12 00:10:45,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:10:45,256 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:10:45,256 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:10:45,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:10:45,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:41" (1/3) ... [2023-11-12 00:10:45,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d77c97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:45, skipping insertion in model container [2023-11-12 00:10:45,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:43" (2/3) ... [2023-11-12 00:10:45,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d77c97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:45, skipping insertion in model container [2023-11-12 00:10:45,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:45" (3/3) ... [2023-11-12 00:10:45,264 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2023-11-12 00:10:45,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:10:45,284 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:10:45,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:10:45,364 INFO L357 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2034072f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:10:45,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:10:45,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 100 states have (on average 1.55) internal successors, (155), 116 states have internal predecessors, (155), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-12 00:10:45,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-12 00:10:45,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:45,385 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:45,386 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:45,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:45,391 INFO L85 PathProgramCache]: Analyzing trace with hash -392830594, now seen corresponding path program 1 times [2023-11-12 00:10:45,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:45,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550013139] [2023-11-12 00:10:45,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:45,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:47,267 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-12 00:10:47,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:47,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550013139] [2023-11-12 00:10:47,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550013139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:47,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:47,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:47,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90049889] [2023-11-12 00:10:47,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:47,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:47,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:47,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:47,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:47,311 INFO L87 Difference]: Start difference. First operand has 145 states, 100 states have (on average 1.55) internal successors, (155), 116 states have internal predecessors, (155), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 00:10:47,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:47,529 INFO L93 Difference]: Finished difference Result 391 states and 579 transitions. [2023-11-12 00:10:47,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:47,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 86 [2023-11-12 00:10:47,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:47,556 INFO L225 Difference]: With dead ends: 391 [2023-11-12 00:10:47,556 INFO L226 Difference]: Without dead ends: 238 [2023-11-12 00:10:47,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:47,565 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 159 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:47,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 367 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:10:47,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-12 00:10:47,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 234. [2023-11-12 00:10:47,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 180 states have (on average 1.4444444444444444) internal successors, (260), 185 states have internal predecessors, (260), 37 states have call successors, (37), 17 states have call predecessors, (37), 16 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-12 00:10:47,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 328 transitions. [2023-11-12 00:10:47,633 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 328 transitions. Word has length 86 [2023-11-12 00:10:47,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:47,634 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 328 transitions. [2023-11-12 00:10:47,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 00:10:47,635 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 328 transitions. [2023-11-12 00:10:47,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 00:10:47,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:47,640 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:47,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:10:47,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:47,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:47,642 INFO L85 PathProgramCache]: Analyzing trace with hash -361649442, now seen corresponding path program 1 times [2023-11-12 00:10:47,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:47,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530838380] [2023-11-12 00:10:47,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:47,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-12 00:10:48,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:48,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530838380] [2023-11-12 00:10:48,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530838380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:48,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:48,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:48,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924812079] [2023-11-12 00:10:48,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:48,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:48,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:48,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:48,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:48,644 INFO L87 Difference]: Start difference. First operand 234 states and 328 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:10:48,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:48,829 INFO L93 Difference]: Finished difference Result 503 states and 717 transitions. [2023-11-12 00:10:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:48,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2023-11-12 00:10:48,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:48,834 INFO L225 Difference]: With dead ends: 503 [2023-11-12 00:10:48,834 INFO L226 Difference]: Without dead ends: 293 [2023-11-12 00:10:48,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:48,845 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 141 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:48,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 321 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:10:48,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-12 00:10:48,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 270. [2023-11-12 00:10:48,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 215 states have (on average 1.4883720930232558) internal successors, (320), 220 states have internal predecessors, (320), 39 states have call successors, (39), 16 states have call predecessors, (39), 15 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-12 00:10:48,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 392 transitions. [2023-11-12 00:10:48,911 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 392 transitions. Word has length 89 [2023-11-12 00:10:48,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:48,912 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 392 transitions. [2023-11-12 00:10:48,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:10:48,913 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 392 transitions. [2023-11-12 00:10:48,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-12 00:10:48,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:48,918 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:48,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:10:48,918 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:48,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:48,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1935608347, now seen corresponding path program 1 times [2023-11-12 00:10:48,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:48,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513099773] [2023-11-12 00:10:48,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:48,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:49,896 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-12 00:10:49,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:49,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513099773] [2023-11-12 00:10:49,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513099773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:49,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:49,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:49,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395986684] [2023-11-12 00:10:49,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:49,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:49,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:49,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:49,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:49,909 INFO L87 Difference]: Start difference. First operand 270 states and 392 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:10:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:50,010 INFO L93 Difference]: Finished difference Result 272 states and 393 transitions. [2023-11-12 00:10:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:50,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2023-11-12 00:10:50,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:50,019 INFO L225 Difference]: With dead ends: 272 [2023-11-12 00:10:50,020 INFO L226 Difference]: Without dead ends: 269 [2023-11-12 00:10:50,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:50,024 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 157 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:50,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 162 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:10:50,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-11-12 00:10:50,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2023-11-12 00:10:50,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 215 states have (on average 1.4837209302325582) internal successors, (319), 219 states have internal predecessors, (319), 38 states have call successors, (38), 16 states have call predecessors, (38), 15 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-12 00:10:50,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 390 transitions. [2023-11-12 00:10:50,054 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 390 transitions. Word has length 100 [2023-11-12 00:10:50,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:50,055 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 390 transitions. [2023-11-12 00:10:50,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:10:50,055 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 390 transitions. [2023-11-12 00:10:50,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-12 00:10:50,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:50,058 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:50,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:10:50,058 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:50,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:50,058 INFO L85 PathProgramCache]: Analyzing trace with hash 125697117, now seen corresponding path program 1 times [2023-11-12 00:10:50,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:50,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704170645] [2023-11-12 00:10:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:50,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:50,885 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-12 00:10:50,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:50,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704170645] [2023-11-12 00:10:50,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704170645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:50,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:50,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:50,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556294557] [2023-11-12 00:10:50,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:50,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:50,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:50,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:50,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:50,889 INFO L87 Difference]: Start difference. First operand 269 states and 390 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:10:50,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:50,997 INFO L93 Difference]: Finished difference Result 271 states and 391 transitions. [2023-11-12 00:10:50,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:50,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 101 [2023-11-12 00:10:50,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:51,001 INFO L225 Difference]: With dead ends: 271 [2023-11-12 00:10:51,001 INFO L226 Difference]: Without dead ends: 268 [2023-11-12 00:10:51,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:51,003 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 154 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:51,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 160 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:10:51,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-12 00:10:51,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2023-11-12 00:10:51,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 215 states have (on average 1.4790697674418605) internal successors, (318), 218 states have internal predecessors, (318), 37 states have call successors, (37), 16 states have call predecessors, (37), 15 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-12 00:10:51,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 388 transitions. [2023-11-12 00:10:51,027 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 388 transitions. Word has length 101 [2023-11-12 00:10:51,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:51,028 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 388 transitions. [2023-11-12 00:10:51,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:10:51,028 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 388 transitions. [2023-11-12 00:10:51,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-12 00:10:51,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:51,031 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:51,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:10:51,031 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:51,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:51,032 INFO L85 PathProgramCache]: Analyzing trace with hash -398338072, now seen corresponding path program 1 times [2023-11-12 00:10:51,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:51,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750534318] [2023-11-12 00:10:51,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:51,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:51,828 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-12 00:10:51,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:51,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750534318] [2023-11-12 00:10:51,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750534318] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:51,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:51,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:51,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991539024] [2023-11-12 00:10:51,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:51,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:51,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:51,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:51,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:51,831 INFO L87 Difference]: Start difference. First operand 268 states and 388 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:10:51,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:51,937 INFO L93 Difference]: Finished difference Result 270 states and 389 transitions. [2023-11-12 00:10:51,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:51,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2023-11-12 00:10:51,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:51,941 INFO L225 Difference]: With dead ends: 270 [2023-11-12 00:10:51,941 INFO L226 Difference]: Without dead ends: 267 [2023-11-12 00:10:51,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:51,943 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 151 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:51,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 158 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:10:51,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2023-11-12 00:10:51,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2023-11-12 00:10:51,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 215 states have (on average 1.4744186046511627) internal successors, (317), 217 states have internal predecessors, (317), 36 states have call successors, (36), 16 states have call predecessors, (36), 15 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-12 00:10:51,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 386 transitions. [2023-11-12 00:10:51,967 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 386 transitions. Word has length 102 [2023-11-12 00:10:51,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:51,968 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 386 transitions. [2023-11-12 00:10:51,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:10:51,968 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 386 transitions. [2023-11-12 00:10:51,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-12 00:10:51,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:51,970 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:51,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:10:51,971 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:51,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:51,971 INFO L85 PathProgramCache]: Analyzing trace with hash 536445120, now seen corresponding path program 1 times [2023-11-12 00:10:51,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:51,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507729883] [2023-11-12 00:10:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:51,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:52,763 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-12 00:10:52,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:52,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507729883] [2023-11-12 00:10:52,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507729883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:52,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:52,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:52,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007834146] [2023-11-12 00:10:52,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:52,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:52,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:52,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:52,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:52,772 INFO L87 Difference]: Start difference. First operand 267 states and 386 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:10:52,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:52,969 INFO L93 Difference]: Finished difference Result 619 states and 899 transitions. [2023-11-12 00:10:52,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:52,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2023-11-12 00:10:52,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:52,982 INFO L225 Difference]: With dead ends: 619 [2023-11-12 00:10:52,982 INFO L226 Difference]: Without dead ends: 435 [2023-11-12 00:10:52,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:52,985 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 141 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:52,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 298 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:10:52,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-11-12 00:10:53,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 432. [2023-11-12 00:10:53,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 352 states have (on average 1.4801136363636365) internal successors, (521), 354 states have internal predecessors, (521), 55 states have call successors, (55), 26 states have call predecessors, (55), 24 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-12 00:10:53,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 628 transitions. [2023-11-12 00:10:53,030 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 628 transitions. Word has length 103 [2023-11-12 00:10:53,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:53,041 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 628 transitions. [2023-11-12 00:10:53,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:10:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 628 transitions. [2023-11-12 00:10:53,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-12 00:10:53,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:53,049 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-12 00:10:53,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:10:53,050 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:53,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:53,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2124175255, now seen corresponding path program 1 times [2023-11-12 00:10:53,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:53,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732111648] [2023-11-12 00:10:53,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:53,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-11-12 00:10:53,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:53,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732111648] [2023-11-12 00:10:53,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732111648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:53,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:53,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:53,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151649904] [2023-11-12 00:10:53,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:53,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:53,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:53,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:53,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:53,884 INFO L87 Difference]: Start difference. First operand 432 states and 628 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-12 00:10:54,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:54,053 INFO L93 Difference]: Finished difference Result 778 states and 1130 transitions. [2023-11-12 00:10:54,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:54,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 117 [2023-11-12 00:10:54,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:54,057 INFO L225 Difference]: With dead ends: 778 [2023-11-12 00:10:54,058 INFO L226 Difference]: Without dead ends: 434 [2023-11-12 00:10:54,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:54,059 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 150 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:54,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 424 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:10:54,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-12 00:10:54,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 432. [2023-11-12 00:10:54,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 352 states have (on average 1.4744318181818181) internal successors, (519), 354 states have internal predecessors, (519), 55 states have call successors, (55), 26 states have call predecessors, (55), 24 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-12 00:10:54,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 625 transitions. [2023-11-12 00:10:54,090 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 625 transitions. Word has length 117 [2023-11-12 00:10:54,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:54,091 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 625 transitions. [2023-11-12 00:10:54,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-12 00:10:54,091 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 625 transitions. [2023-11-12 00:10:54,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-12 00:10:54,093 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:54,094 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-12 00:10:54,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 00:10:54,094 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:54,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:54,095 INFO L85 PathProgramCache]: Analyzing trace with hash 825207445, now seen corresponding path program 1 times [2023-11-12 00:10:54,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:54,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894769488] [2023-11-12 00:10:54,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:54,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:55,215 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-12 00:10:55,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:55,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894769488] [2023-11-12 00:10:55,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894769488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:55,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:55,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 00:10:55,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667107147] [2023-11-12 00:10:55,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:55,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 00:10:55,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:55,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 00:10:55,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:10:55,218 INFO L87 Difference]: Start difference. First operand 432 states and 625 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-12 00:10:55,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:55,539 INFO L93 Difference]: Finished difference Result 1038 states and 1545 transitions. [2023-11-12 00:10:55,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 00:10:55,539 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2023-11-12 00:10:55,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:55,544 INFO L225 Difference]: With dead ends: 1038 [2023-11-12 00:10:55,544 INFO L226 Difference]: Without dead ends: 694 [2023-11-12 00:10:55,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:10:55,546 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 104 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:55,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1481 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:10:55,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2023-11-12 00:10:55,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 432. [2023-11-12 00:10:55,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 353 states have (on average 1.4702549575070822) internal successors, (519), 354 states have internal predecessors, (519), 54 states have call successors, (54), 26 states have call predecessors, (54), 24 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-12 00:10:55,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 624 transitions. [2023-11-12 00:10:55,624 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 624 transitions. Word has length 121 [2023-11-12 00:10:55,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:55,624 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 624 transitions. [2023-11-12 00:10:55,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-12 00:10:55,625 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 624 transitions. [2023-11-12 00:10:55,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-12 00:10:55,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:55,627 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 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] [2023-11-12 00:10:55,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 00:10:55,628 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:55,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:55,632 INFO L85 PathProgramCache]: Analyzing trace with hash -275328994, now seen corresponding path program 1 times [2023-11-12 00:10:55,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:55,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821636854] [2023-11-12 00:10:55,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:55,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:56,659 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-12 00:10:56,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:56,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821636854] [2023-11-12 00:10:56,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821636854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:56,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:56,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:10:56,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600285101] [2023-11-12 00:10:56,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:56,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:10:56,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:56,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:10:56,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:10:56,664 INFO L87 Difference]: Start difference. First operand 432 states and 624 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 00:10:56,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:56,894 INFO L93 Difference]: Finished difference Result 560 states and 830 transitions. [2023-11-12 00:10:56,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:10:56,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 130 [2023-11-12 00:10:56,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:56,896 INFO L225 Difference]: With dead ends: 560 [2023-11-12 00:10:56,896 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:10:56,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:10:56,899 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 101 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:56,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 643 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:10:56,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:10:56,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:10:56,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:10:56,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:10:56,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130 [2023-11-12 00:10:56,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:56,903 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:10:56,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 00:10:56,903 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:10:56,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:10:56,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:10:56,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 00:10:56,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:10:57,677 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7015 7017) the Hoare annotation is: true [2023-11-12 00:10:57,677 INFO L899 garLoopResultBuilder]: For program point usbnet_disconnectEXIT(lines 7015 7017) no Hoare annotation was computed. [2023-11-12 00:10:57,678 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 6853 6863) the Hoare annotation is: (or (not (= |old(~ldv_mutex_udev~0)| 1)) (not (= ~ldv_mutex_lock~0 1)) (not (= ~ldv_mutex_i_mutex_of_inode~0 1)) (not (= 1 ~ldv_mutex_mutex_of_device~0)) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,678 INFO L899 garLoopResultBuilder]: For program point L6856-1(lines 6856 6859) no Hoare annotation was computed. [2023-11-12 00:10:57,678 INFO L899 garLoopResultBuilder]: For program point L6856(lines 6856 6859) no Hoare annotation was computed. [2023-11-12 00:10:57,678 INFO L895 garLoopResultBuilder]: At program point L6857(line 6857) the Hoare annotation is: (or (not (= |old(~ldv_mutex_udev~0)| 1)) (not (= ~ldv_mutex_lock~0 1)) (not (= ~ldv_mutex_i_mutex_of_inode~0 1)) (not (= 1 ~ldv_mutex_mutex_of_device~0))) [2023-11-12 00:10:57,678 INFO L899 garLoopResultBuilder]: For program point ldv_mutex_lock_udevEXIT(lines 6853 6863) no Hoare annotation was computed. [2023-11-12 00:10:57,678 INFO L899 garLoopResultBuilder]: For program point L5762-1(line 5762) no Hoare annotation was computed. [2023-11-12 00:10:57,679 INFO L899 garLoopResultBuilder]: For program point ldv_init_zallocEXIT(lines 5757 5767) no Hoare annotation was computed. [2023-11-12 00:10:57,679 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5757 5767) the Hoare annotation is: true [2023-11-12 00:10:57,679 INFO L899 garLoopResultBuilder]: For program point L5764-1(line 5764) no Hoare annotation was computed. [2023-11-12 00:10:57,679 INFO L902 garLoopResultBuilder]: At program point L5762(line 5762) the Hoare annotation is: true [2023-11-12 00:10:57,679 INFO L902 garLoopResultBuilder]: At program point L5764(line 5764) the Hoare annotation is: true [2023-11-12 00:10:57,680 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5720 5722) the Hoare annotation is: true [2023-11-12 00:10:57,680 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5720 5722) no Hoare annotation was computed. [2023-11-12 00:10:57,680 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5776 5783) the Hoare annotation is: true [2023-11-12 00:10:57,680 INFO L899 garLoopResultBuilder]: For program point ldv_undef_intEXIT(lines 5776 5783) no Hoare annotation was computed. [2023-11-12 00:10:57,681 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 6329 6335) the Hoare annotation is: true [2023-11-12 00:10:57,681 INFO L899 garLoopResultBuilder]: For program point ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2023-11-12 00:10:57,681 INFO L899 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 6329 6335) no Hoare annotation was computed. [2023-11-12 00:10:57,681 INFO L902 garLoopResultBuilder]: At program point LDV_STOP(lines 5792 5798) the Hoare annotation is: true [2023-11-12 00:10:57,681 INFO L899 garLoopResultBuilder]: For program point ldv_stopEXIT(lines 5792 5798) no Hoare annotation was computed. [2023-11-12 00:10:57,682 INFO L899 garLoopResultBuilder]: For program point L6047(lines 6047 6062) no Hoare annotation was computed. [2023-11-12 00:10:57,682 INFO L899 garLoopResultBuilder]: For program point L6080-2(lines 6067 6122) no Hoare annotation was computed. [2023-11-12 00:10:57,682 INFO L899 garLoopResultBuilder]: For program point L6080(lines 6080 6085) no Hoare annotation was computed. [2023-11-12 00:10:57,682 INFO L899 garLoopResultBuilder]: For program point m5632_recover_returnLabel#1(lines 5843 5860) no Hoare annotation was computed. [2023-11-12 00:10:57,682 INFO L899 garLoopResultBuilder]: For program point L6213(line 6213) no Hoare annotation was computed. [2023-11-12 00:10:57,683 INFO L895 garLoopResultBuilder]: At program point L6081(line 6081) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,683 INFO L899 garLoopResultBuilder]: For program point L6081-1(line 6081) no Hoare annotation was computed. [2023-11-12 00:10:57,683 INFO L899 garLoopResultBuilder]: For program point L6973(lines 6964 6982) no Hoare annotation was computed. [2023-11-12 00:10:57,683 INFO L902 garLoopResultBuilder]: At program point L6214(line 6214) the Hoare annotation is: true [2023-11-12 00:10:57,683 INFO L895 garLoopResultBuilder]: At program point L6974(line 6974) the Hoare annotation is: false [2023-11-12 00:10:57,683 INFO L899 garLoopResultBuilder]: For program point L6049(lines 6049 6059) no Hoare annotation was computed. [2023-11-12 00:10:57,684 INFO L899 garLoopResultBuilder]: For program point L6050(line 6050) no Hoare annotation was computed. [2023-11-12 00:10:57,684 INFO L899 garLoopResultBuilder]: For program point L5852(lines 5852 5855) no Hoare annotation was computed. [2023-11-12 00:10:57,684 INFO L899 garLoopResultBuilder]: For program point L6051(lines 6051 6055) no Hoare annotation was computed. [2023-11-12 00:10:57,684 INFO L899 garLoopResultBuilder]: For program point L6184(line 6184) no Hoare annotation was computed. [2023-11-12 00:10:57,684 INFO L899 garLoopResultBuilder]: For program point L6052-1(line 6052) no Hoare annotation was computed. [2023-11-12 00:10:57,685 INFO L895 garLoopResultBuilder]: At program point L6052(line 6052) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,685 INFO L899 garLoopResultBuilder]: For program point L6977(lines 6962 6983) no Hoare annotation was computed. [2023-11-12 00:10:57,685 INFO L899 garLoopResultBuilder]: For program point L6185(lines 6185 6200) no Hoare annotation was computed. [2023-11-12 00:10:57,685 INFO L895 garLoopResultBuilder]: At program point L6978(line 6978) the Hoare annotation is: false [2023-11-12 00:10:57,685 INFO L899 garLoopResultBuilder]: For program point L6945-1(line 6945) no Hoare annotation was computed. [2023-11-12 00:10:57,685 INFO L895 garLoopResultBuilder]: At program point L6945(line 6945) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,686 INFO L895 garLoopResultBuilder]: At program point L6087(line 6087) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,686 INFO L899 garLoopResultBuilder]: For program point L6087-1(line 6087) no Hoare annotation was computed. [2023-11-12 00:10:57,686 INFO L899 garLoopResultBuilder]: For program point L6120(line 6120) no Hoare annotation was computed. [2023-11-12 00:10:57,686 INFO L899 garLoopResultBuilder]: For program point L6946(lines 6946 6952) no Hoare annotation was computed. [2023-11-12 00:10:57,686 INFO L899 garLoopResultBuilder]: For program point L6187(lines 6187 6197) no Hoare annotation was computed. [2023-11-12 00:10:57,687 INFO L899 garLoopResultBuilder]: For program point L6220(line 6220) no Hoare annotation was computed. [2023-11-12 00:10:57,687 INFO L902 garLoopResultBuilder]: At program point L6121(line 6121) the Hoare annotation is: true [2023-11-12 00:10:57,687 INFO L899 garLoopResultBuilder]: For program point L6947-1(line 6947) no Hoare annotation was computed. [2023-11-12 00:10:57,687 INFO L895 garLoopResultBuilder]: At program point L6947(line 6947) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,687 INFO L902 garLoopResultBuilder]: At program point L6221(line 6221) the Hoare annotation is: true [2023-11-12 00:10:57,688 INFO L899 garLoopResultBuilder]: For program point L6188(line 6188) no Hoare annotation was computed. [2023-11-12 00:10:57,688 INFO L899 garLoopResultBuilder]: For program point L6189(lines 6189 6193) no Hoare annotation was computed. [2023-11-12 00:10:57,688 INFO L899 garLoopResultBuilder]: For program point L6057(line 6057) no Hoare annotation was computed. [2023-11-12 00:10:57,688 INFO L895 garLoopResultBuilder]: At program point L6190(line 6190) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,689 INFO L902 garLoopResultBuilder]: At program point L6058(line 6058) the Hoare annotation is: true [2023-11-12 00:10:57,689 INFO L899 garLoopResultBuilder]: For program point L6190-1(line 6190) no Hoare annotation was computed. [2023-11-12 00:10:57,689 INFO L895 garLoopResultBuilder]: At program point L6950(line 6950) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,689 INFO L899 garLoopResultBuilder]: For program point L6025(lines 6002 6228) no Hoare annotation was computed. [2023-11-12 00:10:57,689 INFO L899 garLoopResultBuilder]: For program point L6917-1(lines 6917 6920) no Hoare annotation was computed. [2023-11-12 00:10:57,690 INFO L899 garLoopResultBuilder]: For program point L6950-1(line 6950) no Hoare annotation was computed. [2023-11-12 00:10:57,690 INFO L899 garLoopResultBuilder]: For program point L6917(lines 6917 6920) no Hoare annotation was computed. [2023-11-12 00:10:57,690 INFO L899 garLoopResultBuilder]: For program point main_ldv_final#1(lines 6002 6228) no Hoare annotation was computed. [2023-11-12 00:10:57,690 INFO L895 garLoopResultBuilder]: At program point L6918(line 6918) the Hoare annotation is: false [2023-11-12 00:10:57,690 INFO L899 garLoopResultBuilder]: For program point L6159(line 6159) no Hoare annotation was computed. [2023-11-12 00:10:57,690 INFO L899 garLoopResultBuilder]: For program point L6027(lines 6027 6222) no Hoare annotation was computed. [2023-11-12 00:10:57,691 INFO L899 garLoopResultBuilder]: For program point L6093(line 6093) no Hoare annotation was computed. [2023-11-12 00:10:57,691 INFO L899 garLoopResultBuilder]: For program point L6127(line 6127) no Hoare annotation was computed. [2023-11-12 00:10:57,691 INFO L902 garLoopResultBuilder]: At program point L6160(line 6160) the Hoare annotation is: true [2023-11-12 00:10:57,691 INFO L899 garLoopResultBuilder]: For program point L6028(line 6028) no Hoare annotation was computed. [2023-11-12 00:10:57,691 INFO L899 garLoopResultBuilder]: For program point L6128(lines 6128 6164) no Hoare annotation was computed. [2023-11-12 00:10:57,692 INFO L899 garLoopResultBuilder]: For program point L6029(lines 6029 6044) no Hoare annotation was computed. [2023-11-12 00:10:57,692 INFO L899 garLoopResultBuilder]: For program point L6195(line 6195) no Hoare annotation was computed. [2023-11-12 00:10:57,692 INFO L899 garLoopResultBuilder]: For program point L6130(lines 6130 6161) no Hoare annotation was computed. [2023-11-12 00:10:57,692 INFO L902 garLoopResultBuilder]: At program point L6196(line 6196) the Hoare annotation is: true [2023-11-12 00:10:57,692 INFO L899 garLoopResultBuilder]: For program point L6031(lines 6031 6041) no Hoare annotation was computed. [2023-11-12 00:10:57,693 INFO L899 garLoopResultBuilder]: For program point L6064(line 6064) no Hoare annotation was computed. [2023-11-12 00:10:57,693 INFO L899 garLoopResultBuilder]: For program point L6131(line 6131) no Hoare annotation was computed. [2023-11-12 00:10:57,693 INFO L899 garLoopResultBuilder]: For program point L6065(lines 6065 6125) no Hoare annotation was computed. [2023-11-12 00:10:57,693 INFO L899 garLoopResultBuilder]: For program point L6032(line 6032) no Hoare annotation was computed. [2023-11-12 00:10:57,693 INFO L899 garLoopResultBuilder]: For program point L6132(lines 6132 6137) no Hoare annotation was computed. [2023-11-12 00:10:57,693 INFO L899 garLoopResultBuilder]: For program point L6033(lines 6033 6037) no Hoare annotation was computed. [2023-11-12 00:10:57,694 INFO L899 garLoopResultBuilder]: For program point L6166(line 6166) no Hoare annotation was computed. [2023-11-12 00:10:57,694 INFO L899 garLoopResultBuilder]: For program point L6067(lines 6067 6122) no Hoare annotation was computed. [2023-11-12 00:10:57,694 INFO L899 garLoopResultBuilder]: For program point L6100(line 6100) no Hoare annotation was computed. [2023-11-12 00:10:57,694 INFO L899 garLoopResultBuilder]: For program point L6167(lines 6167 6182) no Hoare annotation was computed. [2023-11-12 00:10:57,694 INFO L899 garLoopResultBuilder]: For program point L6068(line 6068) no Hoare annotation was computed. [2023-11-12 00:10:57,695 INFO L895 garLoopResultBuilder]: At program point L6003(line 6003) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,695 INFO L899 garLoopResultBuilder]: For program point L6003-1(line 6003) no Hoare annotation was computed. [2023-11-12 00:10:57,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:10:57,695 INFO L899 garLoopResultBuilder]: For program point L6202(line 6202) no Hoare annotation was computed. [2023-11-12 00:10:57,695 INFO L899 garLoopResultBuilder]: For program point L6169(lines 6169 6179) no Hoare annotation was computed. [2023-11-12 00:10:57,695 INFO L899 garLoopResultBuilder]: For program point L6203(lines 6203 6218) no Hoare annotation was computed. [2023-11-12 00:10:57,696 INFO L899 garLoopResultBuilder]: For program point L6170(line 6170) no Hoare annotation was computed. [2023-11-12 00:10:57,696 INFO L895 garLoopResultBuilder]: At program point L6005(line 6005) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,696 INFO L899 garLoopResultBuilder]: For program point L6005-1(line 6005) no Hoare annotation was computed. [2023-11-12 00:10:57,696 INFO L899 garLoopResultBuilder]: For program point L6171(lines 6171 6175) no Hoare annotation was computed. [2023-11-12 00:10:57,696 INFO L899 garLoopResultBuilder]: For program point L6039(line 6039) no Hoare annotation was computed. [2023-11-12 00:10:57,697 INFO L899 garLoopResultBuilder]: For program point L6139(line 6139) no Hoare annotation was computed. [2023-11-12 00:10:57,697 INFO L899 garLoopResultBuilder]: For program point L6172-1(line 6172) no Hoare annotation was computed. [2023-11-12 00:10:57,697 INFO L899 garLoopResultBuilder]: For program point L6205(lines 6205 6215) no Hoare annotation was computed. [2023-11-12 00:10:57,697 INFO L895 garLoopResultBuilder]: At program point L6172(line 6172) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,697 INFO L895 garLoopResultBuilder]: At program point L6007(line 6007) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,698 INFO L899 garLoopResultBuilder]: For program point L6007-1(line 6007) no Hoare annotation was computed. [2023-11-12 00:10:57,698 INFO L895 garLoopResultBuilder]: At program point L5974(line 5974) the Hoare annotation is: (and (= ~ldv_state_variable_0~0 1) (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,698 INFO L902 garLoopResultBuilder]: At program point L6040(line 6040) the Hoare annotation is: true [2023-11-12 00:10:57,698 INFO L899 garLoopResultBuilder]: For program point L5974-1(line 5974) no Hoare annotation was computed. [2023-11-12 00:10:57,698 INFO L899 garLoopResultBuilder]: For program point L6965-1(lines 6964 6982) no Hoare annotation was computed. [2023-11-12 00:10:57,699 INFO L899 garLoopResultBuilder]: For program point L6965(lines 6965 6968) no Hoare annotation was computed. [2023-11-12 00:10:57,699 INFO L899 garLoopResultBuilder]: For program point L6206(line 6206) no Hoare annotation was computed. [2023-11-12 00:10:57,699 INFO L899 garLoopResultBuilder]: For program point L6140(lines 6140 6157) no Hoare annotation was computed. [2023-11-12 00:10:57,699 INFO L895 garLoopResultBuilder]: At program point L6966(line 6966) the Hoare annotation is: false [2023-11-12 00:10:57,699 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:10:57,699 INFO L899 garLoopResultBuilder]: For program point L6207(lines 6207 6211) no Hoare annotation was computed. [2023-11-12 00:10:57,700 INFO L895 garLoopResultBuilder]: At program point L6009(line 6009) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,700 INFO L899 garLoopResultBuilder]: For program point L6009-1(line 6009) no Hoare annotation was computed. [2023-11-12 00:10:57,700 INFO L899 garLoopResultBuilder]: For program point L6208-1(line 6208) no Hoare annotation was computed. [2023-11-12 00:10:57,700 INFO L895 garLoopResultBuilder]: At program point L6208(line 6208) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,700 INFO L899 garLoopResultBuilder]: For program point L6142-2(lines 6140 6156) no Hoare annotation was computed. [2023-11-12 00:10:57,701 INFO L899 garLoopResultBuilder]: For program point ldv_usb_lock_device_for_reset_udev_returnLabel#1(lines 6940 6954) no Hoare annotation was computed. [2023-11-12 00:10:57,701 INFO L899 garLoopResultBuilder]: For program point L6110(line 6110) no Hoare annotation was computed. [2023-11-12 00:10:57,701 INFO L895 garLoopResultBuilder]: At program point L6011(line 6011) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,701 INFO L895 garLoopResultBuilder]: At program point L-1-2(line -1) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,701 INFO L899 garLoopResultBuilder]: For program point L6011-1(line 6011) no Hoare annotation was computed. [2023-11-12 00:10:57,702 INFO L899 garLoopResultBuilder]: For program point L6969(lines 6964 6982) no Hoare annotation was computed. [2023-11-12 00:10:57,702 INFO L899 garLoopResultBuilder]: For program point L6177(line 6177) no Hoare annotation was computed. [2023-11-12 00:10:57,702 INFO L895 garLoopResultBuilder]: At program point L6970(line 6970) the Hoare annotation is: false [2023-11-12 00:10:57,702 INFO L902 garLoopResultBuilder]: At program point L6178(line 6178) the Hoare annotation is: true [2023-11-12 00:10:57,702 INFO L899 garLoopResultBuilder]: For program point L6079(line 6079) no Hoare annotation was computed. [2023-11-12 00:10:57,703 INFO L899 garLoopResultBuilder]: For program point L6046(line 6046) no Hoare annotation was computed. [2023-11-12 00:10:57,703 INFO L895 garLoopResultBuilder]: At program point L6013(line 6013) the Hoare annotation is: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,703 INFO L899 garLoopResultBuilder]: For program point L6013-1(line 6013) no Hoare annotation was computed. [2023-11-12 00:10:57,703 INFO L899 garLoopResultBuilder]: For program point #Ultimate.meminitEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:10:57,703 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-11-12 00:10:57,704 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5837 5842) the Hoare annotation is: true [2023-11-12 00:10:57,704 INFO L899 garLoopResultBuilder]: For program point always_connectedEXIT(lines 5837 5842) no Hoare annotation was computed. [2023-11-12 00:10:57,705 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6336 6349) the Hoare annotation is: true [2023-11-12 00:10:57,705 INFO L899 garLoopResultBuilder]: For program point L6343-1(lines 6343 6346) no Hoare annotation was computed. [2023-11-12 00:10:57,705 INFO L899 garLoopResultBuilder]: For program point L6343(lines 6343 6346) no Hoare annotation was computed. [2023-11-12 00:10:57,705 INFO L902 garLoopResultBuilder]: At program point L6344(line 6344) the Hoare annotation is: true [2023-11-12 00:10:57,705 INFO L899 garLoopResultBuilder]: For program point L6341-1(line 6341) no Hoare annotation was computed. [2023-11-12 00:10:57,706 INFO L899 garLoopResultBuilder]: For program point ldv_undef_int_negativeEXIT(lines 6336 6349) no Hoare annotation was computed. [2023-11-12 00:10:57,706 INFO L902 garLoopResultBuilder]: At program point L6341(line 6341) the Hoare annotation is: true [2023-11-12 00:10:57,710 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:57,713 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:10:57,726 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_mutex_of_device~0 [2023-11-12 00:10:57,727 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_i_mutex_of_inode~0 [2023-11-12 00:10:57,727 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_lock~0 [2023-11-12 00:10:57,728 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_state_variable_6~0 [2023-11-12 00:10:57,728 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_udev~0 [2023-11-12 00:10:57,728 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_mutex_of_device~0 [2023-11-12 00:10:57,729 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_i_mutex_of_inode~0 [2023-11-12 00:10:57,729 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_lock~0 [2023-11-12 00:10:57,729 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_state_variable_6~0 [2023-11-12 00:10:57,730 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_udev~0 [2023-11-12 00:10:57,730 ERROR L464 ceAbstractionStarter]: Failed to backtranslate (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_state_variable_6~0 0) (= ~ldv_mutex_udev~0 1)) [2023-11-12 00:10:57,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:10:57 BoogieIcfgContainer [2023-11-12 00:10:57,733 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:10:57,733 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:10:57,734 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:10:57,734 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:10:57,734 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:45" (3/4) ... [2023-11-12 00:10:57,737 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:10:57,742 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure usbnet_disconnect [2023-11-12 00:10:57,743 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2023-11-12 00:10:57,743 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_udev [2023-11-12 00:10:57,743 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2023-11-12 00:10:57,744 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_init_zalloc [2023-11-12 00:10:57,744 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-12 00:10:57,744 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int [2023-11-12 00:10:57,744 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2023-11-12 00:10:57,744 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure always_connected [2023-11-12 00:10:57,745 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int_negative [2023-11-12 00:10:57,778 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2023-11-12 00:10:57,781 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-12 00:10:57,784 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-12 00:10:57,787 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-12 00:10:57,790 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:10:58,303 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:10:58,303 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:10:58,303 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:10:58,304 INFO L158 Benchmark]: Toolchain (without parser) took 16877.00ms. Allocated memory was 155.2MB in the beginning and 601.9MB in the end (delta: 446.7MB). Free memory was 116.4MB in the beginning and 361.7MB in the end (delta: -245.3MB). Peak memory consumption was 202.2MB. Max. memory is 16.1GB. [2023-11-12 00:10:58,304 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:10:58,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1729.04ms. Allocated memory is still 155.2MB. Free memory was 116.4MB in the beginning and 62.4MB in the end (delta: 53.9MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2023-11-12 00:10:58,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 228.93ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 62.4MB in the beginning and 166.0MB in the end (delta: -103.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-11-12 00:10:58,306 INFO L158 Benchmark]: Boogie Preprocessor took 123.87ms. Allocated memory is still 224.4MB. Free memory was 166.0MB in the beginning and 156.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:10:58,306 INFO L158 Benchmark]: RCFGBuilder took 1738.46ms. Allocated memory is still 224.4MB. Free memory was 156.6MB in the beginning and 107.8MB in the end (delta: 48.7MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB. [2023-11-12 00:10:58,306 INFO L158 Benchmark]: TraceAbstraction took 12476.50ms. Allocated memory was 224.4MB in the beginning and 601.9MB in the end (delta: 377.5MB). Free memory was 106.8MB in the beginning and 395.3MB in the end (delta: -288.5MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. [2023-11-12 00:10:58,307 INFO L158 Benchmark]: Witness Printer took 569.97ms. Allocated memory is still 601.9MB. Free memory was 395.3MB in the beginning and 361.7MB in the end (delta: 33.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-12 00:10:58,309 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1729.04ms. Allocated memory is still 155.2MB. Free memory was 116.4MB in the beginning and 62.4MB in the end (delta: 53.9MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 228.93ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 62.4MB in the beginning and 166.0MB in the end (delta: -103.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 123.87ms. Allocated memory is still 224.4MB. Free memory was 166.0MB in the beginning and 156.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1738.46ms. Allocated memory is still 224.4MB. Free memory was 156.6MB in the beginning and 107.8MB in the end (delta: 48.7MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB. * TraceAbstraction took 12476.50ms. Allocated memory was 224.4MB in the beginning and 601.9MB in the end (delta: 377.5MB). Free memory was 106.8MB in the beginning and 395.3MB in the end (delta: -288.5MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. * Witness Printer took 569.97ms. Allocated memory is still 601.9MB. Free memory was 395.3MB in the beginning and 361.7MB in the end (delta: 33.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_mutex_of_device~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_i_mutex_of_inode~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_lock~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_state_variable_6~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_udev~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_mutex_of_device~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_i_mutex_of_inode~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_lock~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_state_variable_6~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_udev~0 * 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 - PositiveResult [Line: 6333]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 146 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.4s, OverallIterations: 9, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1272 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1258 mSDsluCounter, 4014 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2210 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 525 IncrementalHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 1804 mSDtfsCounter, 525 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=432occurred in iteration=6, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 294 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 341 PreInvPairs, 392 NumberOfFragments, 308 HoareAnnotationTreeSize, 341 FomulaSimplifications, 377 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 45 FomulaSimplificationsInter, 1440 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 949 NumberOfCodeBlocks, 949 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 940 ConstructedInterpolants, 0 QuantifiedInterpolants, 1224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 1793/1793 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5792]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant [2023-11-12 00:10:58,316 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_mutex_of_device~0 [2023-11-12 00:10:58,317 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_i_mutex_of_inode~0 [2023-11-12 00:10:58,317 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_lock~0 [2023-11-12 00:10:58,317 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_state_variable_6~0 [2023-11-12 00:10:58,317 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_udev~0 [2023-11-12 00:10:58,318 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_mutex_of_device~0 [2023-11-12 00:10:58,318 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_i_mutex_of_inode~0 [2023-11-12 00:10:58,318 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_lock~0 [2023-11-12 00:10:58,318 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_state_variable_6~0 [2023-11-12 00:10:58,318 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~ldv_mutex_udev~0 Derived loop invariant: NULL RESULT: Ultimate proved your program to be correct! [2023-11-12 00:10:58,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b507e15-689a-4e8a-a615-d53aed8fb741/bin/utaipan-verify-NcY6lQBIFX/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: TRUE