./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-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ --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 f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:15:59,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:16:00,086 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:16:00,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:16:00,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:16:00,134 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:16:00,135 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:16:00,136 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:16:00,137 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:16:00,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:16:00,142 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:16:00,143 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:16:00,143 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:16:00,145 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:16:00,146 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:16:00,146 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:16:00,147 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:16:00,147 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:16:00,149 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:16:00,150 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:16:00,150 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:16:00,151 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:16:00,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:16:00,152 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:16:00,153 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:16:00,153 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:16:00,154 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:16:00,154 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:16:00,154 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:16:00,155 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:16:00,156 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:16:00,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:16:00,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:16:00,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:16:00,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:16:00,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:16:00,158 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:16:00,158 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:16:00,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:16:00,159 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:16:00,159 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:16:00,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:16:00,159 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_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9061bc17f5b81d8b71557fcfcad78d4aeee3eb70f5055a497a3bfac3b14ddef [2023-11-19 04:16:00,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:16:00,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:16:00,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:16:00,513 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:16:00,513 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:16:00,515 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2023-11-19 04:16:03,617 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:16:04,304 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:16:04,305 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2023-11-19 04:16:04,371 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ/data/1a90f2dde/12c41f3300354c3c94c747f461c292cc/FLAGab6e36d02 [2023-11-19 04:16:04,390 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ/data/1a90f2dde/12c41f3300354c3c94c747f461c292cc [2023-11-19 04:16:04,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:16:04,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:16:04,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:16:04,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:16:04,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:16:04,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:16:04" (1/1) ... [2023-11-19 04:16:04,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770e18b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:04, skipping insertion in model container [2023-11-19 04:16:04,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:16:04" (1/1) ... [2023-11-19 04:16:04,588 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:16:07,170 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_6c330c0e-3519-477b-b6df-e61fe72cba34/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i[338700,338713] [2023-11-19 04:16:07,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:16:07,256 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:16:07,398 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [3507] [2023-11-19 04:16:07,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [3635] [2023-11-19 04:16:07,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [3642] [2023-11-19 04:16:07,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [4961] [2023-11-19 04:16:07,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6300] [2023-11-19 04:16:07,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [9460] [2023-11-19 04:16:07,872 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_6c330c0e-3519-477b-b6df-e61fe72cba34/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i[338700,338713] [2023-11-19 04:16:07,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:16:07,980 WARN L675 CHandler]: The function ldv_calloc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:16:07,988 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:16:07,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:07 WrapperNode [2023-11-19 04:16:07,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:16:07,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:16:07,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:16:07,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:16:07,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:07" (1/1) ... [2023-11-19 04:16:08,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:07" (1/1) ... [2023-11-19 04:16:08,400 INFO L138 Inliner]: procedures = 274, calls = 6062, calls flagged for inlining = 107, calls inlined = 80, statements flattened = 6919 [2023-11-19 04:16:08,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:16:08,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:16:08,401 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:16:08,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:16:08,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:07" (1/1) ... [2023-11-19 04:16:08,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:07" (1/1) ... [2023-11-19 04:16:08,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:07" (1/1) ... [2023-11-19 04:16:08,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:07" (1/1) ... [2023-11-19 04:16:08,667 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:07" (1/1) ... [2023-11-19 04:16:08,693 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:07" (1/1) ... [2023-11-19 04:16:08,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:07" (1/1) ... [2023-11-19 04:16:08,748 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:07" (1/1) ... [2023-11-19 04:16:08,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:16:08,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:16:08,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:16:08,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:16:08,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:07" (1/1) ... [2023-11-19 04:16:08,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:16:08,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:16:08,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:16:08,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c330c0e-3519-477b-b6df-e61fe72cba34/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:16:08,868 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue_status_stage [2023-11-19 04:16:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue_status_stage [2023-11-19 04:16:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure ep0_queue [2023-11-19 04:16:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ep0_queue [2023-11-19 04:16:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure ep_bd_list_free [2023-11-19 04:16:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_bd_list_free [2023-11-19 04:16:08,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:16:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:16:08,870 INFO L130 BoogieDeclarations]: Found specification of procedure init_ep [2023-11-19 04:16:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ep [2023-11-19 04:16:08,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:16:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:16:08,870 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-19 04:16:08,871 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-19 04:16:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 04:16:08,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 04:16:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_reset [2023-11-19 04:16:08,871 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_reset [2023-11-19 04:16:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:16:08,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:16:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-19 04:16:08,873 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-19 04:16:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_disable [2023-11-19 04:16:08,873 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_disable [2023-11-19 04:16:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure usb_del_gadget_udc [2023-11-19 04:16:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_del_gadget_udc [2023-11-19 04:16:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:16:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:16:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:16:08,874 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:16:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2023-11-19 04:16:08,875 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2023-11-19 04:16:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:16:08,875 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:16:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2023-11-19 04:16:08,875 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2023-11-19 04:16:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_req_complete [2023-11-19 04:16:08,875 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_req_complete [2023-11-19 04:16:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_free_request [2023-11-19 04:16:08,876 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_free_request [2023-11-19 04:16:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure bd_add_to_bdi [2023-11-19 04:16:08,876 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_add_to_bdi [2023-11-19 04:16:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_remove [2023-11-19 04:16:08,876 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_remove [2023-11-19 04:16:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2023-11-19 04:16:08,876 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2023-11-19 04:16:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:16:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 04:16:08,877 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 04:16:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_stop [2023-11-19 04:16:08,877 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_stop [2023-11-19 04:16:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:16:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 04:16:08,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 04:16:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:16:08,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:16:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_isoc [2023-11-19 04:16:08,879 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_isoc [2023-11-19 04:16:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:16:08,880 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:16:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:16:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:16:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_free_ep [2023-11-19 04:16:08,880 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_free_ep [2023-11-19 04:16:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 04:16:08,881 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 04:16:08,881 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_notify_xfr [2023-11-19 04:16:08,881 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_notify_xfr [2023-11-19 04:16:08,881 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-19 04:16:08,882 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-19 04:16:08,882 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 04:16:08,882 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 04:16:08,882 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop_ep [2023-11-19 04:16:08,883 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop_ep [2023-11-19 04:16:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 04:16:08,883 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 04:16:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_set_stall [2023-11-19 04:16:08,883 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_set_stall [2023-11-19 04:16:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 04:16:08,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 04:16:08,883 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_map_request [2023-11-19 04:16:08,884 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_map_request [2023-11-19 04:16:08,884 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_free [2023-11-19 04:16:08,884 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_free [2023-11-19 04:16:08,885 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_dbg_bd_list [2023-11-19 04:16:08,885 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_dbg_bd_list [2023-11-19 04:16:08,885 INFO L130 BoogieDeclarations]: Found specification of procedure ep_set_halt [2023-11-19 04:16:08,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_set_halt [2023-11-19 04:16:08,885 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-19 04:16:08,885 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-19 04:16:08,885 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_tbi [2023-11-19 04:16:08,885 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_tbi [2023-11-19 04:16:08,886 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-19 04:16:08,886 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-19 04:16:08,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:16:08,886 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_mem_init [2023-11-19 04:16:08,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_mem_init [2023-11-19 04:16:08,886 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_config_ep [2023-11-19 04:16:08,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_config_ep [2023-11-19 04:16:08,886 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_enable [2023-11-19 04:16:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_enable [2023-11-19 04:16:08,887 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_queue_xfr [2023-11-19 04:16:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_queue_xfr [2023-11-19 04:16:08,887 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_hw_exit [2023-11-19 04:16:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_hw_exit [2023-11-19 04:16:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 04:16:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 04:16:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:16:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:16:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_disable [2023-11-19 04:16:08,889 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_disable [2023-11-19 04:16:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-19 04:16:08,889 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-19 04:16:08,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:16:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 04:16:08,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 04:16:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 04:16:08,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 04:16:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:16:08,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:16:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 04:16:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 04:16:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:16:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2023-11-19 04:16:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 04:16:08,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 04:16:08,891 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2023-11-19 04:16:08,892 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2023-11-19 04:16:08,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:16:08,892 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_gadget_ep_dequeue [2023-11-19 04:16:08,892 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_gadget_ep_dequeue [2023-11-19 04:16:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_state [2023-11-19 04:16:08,893 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_state [2023-11-19 04:16:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:16:08,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:16:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:16:08,893 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_start [2023-11-19 04:16:08,893 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_start [2023-11-19 04:16:08,894 INFO L130 BoogieDeclarations]: Found specification of procedure poll_oip [2023-11-19 04:16:08,894 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_oip [2023-11-19 04:16:08,894 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2023-11-19 04:16:08,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2023-11-19 04:16:08,895 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_stop [2023-11-19 04:16:08,898 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_stop [2023-11-19 04:16:08,898 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_softconn [2023-11-19 04:16:08,899 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_softconn [2023-11-19 04:16:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_run [2023-11-19 04:16:08,900 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_run [2023-11-19 04:16:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2023-11-19 04:16:08,901 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2023-11-19 04:16:08,901 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_submit_cmd [2023-11-19 04:16:08,901 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_submit_cmd [2023-11-19 04:16:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_udc_wakeup [2023-11-19 04:16:08,907 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_udc_wakeup [2023-11-19 04:16:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 04:16:08,907 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 04:16:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure find_end_bdi [2023-11-19 04:16:08,908 INFO L138 BoogieDeclarations]: Found implementation of procedure find_end_bdi [2023-11-19 04:16:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_to_bd [2023-11-19 04:16:08,908 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_to_bd [2023-11-19 04:16:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 04:16:08,908 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 04:16:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:16:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_writel [2023-11-19 04:16:08,908 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_writel [2023-11-19 04:16:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:16:08,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:16:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure chain_table [2023-11-19 04:16:08,909 INFO L138 BoogieDeclarations]: Found implementation of procedure chain_table [2023-11-19 04:16:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_readl [2023-11-19 04:16:08,909 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_readl [2023-11-19 04:16:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_ep_enable [2023-11-19 04:16:08,909 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_ep_enable [2023-11-19 04:16:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 04:16:08,910 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 04:16:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure bdc_probe [2023-11-19 04:16:08,910 INFO L138 BoogieDeclarations]: Found implementation of procedure bdc_probe [2023-11-19 04:16:09,685 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:16:09,690 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:16:11,810 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:16:22,857 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:16:25,516 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:16:25,517 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 04:16:25,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:16:25 BoogieIcfgContainer [2023-11-19 04:16:25,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:16:25,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:16:25,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:16:25,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:16:25,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:16:04" (1/3) ... [2023-11-19 04:16:25,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1a662c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:16:25, skipping insertion in model container [2023-11-19 04:16:25,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:16:07" (2/3) ... [2023-11-19 04:16:25,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1a662c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:16:25, skipping insertion in model container [2023-11-19 04:16:25,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:16:25" (3/3) ... [2023-11-19 04:16:25,548 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--bdc--bdc.ko-entry_point.cil.out.i [2023-11-19 04:16:25,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:16:25,570 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:16:25,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:16:25,687 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;@3b828ae7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:16:25,687 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:16:25,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 1548 states, 972 states have (on average 1.3024691358024691) internal successors, (1266), 994 states have internal predecessors, (1266), 493 states have call successors, (493), 82 states have call predecessors, (493), 81 states have return successors, (488), 488 states have call predecessors, (488), 488 states have call successors, (488) [2023-11-19 04:16:25,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 04:16:25,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:16:25,733 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:16:25,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:16:25,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:16:25,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1416705938, now seen corresponding path program 1 times [2023-11-19 04:16:25,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:16:25,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860280189] [2023-11-19 04:16:25,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:16:25,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:16:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:16:26,970 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 04:16:26,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:16:26,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860280189] [2023-11-19 04:16:26,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860280189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:16:26,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:16:26,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:16:26,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083581324] [2023-11-19 04:16:26,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:16:26,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:16:26,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:16:27,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:16:27,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:16:27,026 INFO L87 Difference]: Start difference. First operand has 1548 states, 972 states have (on average 1.3024691358024691) internal successors, (1266), 994 states have internal predecessors, (1266), 493 states have call successors, (493), 82 states have call predecessors, (493), 81 states have return successors, (488), 488 states have call predecessors, (488), 488 states have call successors, (488) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 04:16:30,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:16:30,586 INFO L93 Difference]: Finished difference Result 4203 states and 6115 transitions. [2023-11-19 04:16:30,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:16:30,590 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), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2023-11-19 04:16:30,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:16:30,740 INFO L225 Difference]: With dead ends: 4203 [2023-11-19 04:16:30,740 INFO L226 Difference]: Without dead ends: 2641 [2023-11-19 04:16:30,756 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 [2023-11-19 04:16:30,760 INFO L413 NwaCegarLoop]: 2261 mSDtfsCounter, 1582 mSDsluCounter, 2045 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 4306 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:16:30,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1582 Valid, 4306 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-19 04:16:30,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2023-11-19 04:16:31,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 2637. [2023-11-19 04:16:31,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2637 states, 1652 states have (on average 1.286319612590799) internal successors, (2125), 1678 states have internal predecessors, (2125), 840 states have call successors, (840), 145 states have call predecessors, (840), 144 states have return successors, (839), 838 states have call predecessors, (839), 839 states have call successors, (839) [2023-11-19 04:16:31,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 3804 transitions. [2023-11-19 04:16:31,111 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 3804 transitions. Word has length 59 [2023-11-19 04:16:31,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:16:31,111 INFO L495 AbstractCegarLoop]: Abstraction has 2637 states and 3804 transitions. [2023-11-19 04:16:31,112 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), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 04:16:31,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 3804 transitions. [2023-11-19 04:16:31,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-19 04:16:31,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:16:31,128 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:16:31,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:16:31,129 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:16:31,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:16:31,129 INFO L85 PathProgramCache]: Analyzing trace with hash -360896690, now seen corresponding path program 1 times [2023-11-19 04:16:31,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:16:31,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007221282] [2023-11-19 04:16:31,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:16:31,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:16:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:16:32,728 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2023-11-19 04:16:32,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:16:32,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007221282] [2023-11-19 04:16:32,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007221282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:16:32,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:16:32,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:16:32,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070813935] [2023-11-19 04:16:32,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:16:32,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:16:32,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:16:32,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:16:32,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:16:32,735 INFO L87 Difference]: Start difference. First operand 2637 states and 3804 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 04:16:37,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:16:37,470 INFO L93 Difference]: Finished difference Result 4748 states and 6866 transitions. [2023-11-19 04:16:37,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:16:37,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2023-11-19 04:16:37,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:16:37,516 INFO L225 Difference]: With dead ends: 4748 [2023-11-19 04:16:37,517 INFO L226 Difference]: Without dead ends: 4745 [2023-11-19 04:16:37,525 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 [2023-11-19 04:16:37,527 INFO L413 NwaCegarLoop]: 2413 mSDtfsCounter, 1621 mSDsluCounter, 4435 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 6848 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:16:37,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1621 Valid, 6848 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-19 04:16:37,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4745 states. [2023-11-19 04:16:37,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4745 to 4710. [2023-11-19 04:16:37,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4710 states, 2961 states have (on average 1.2894292468760553) internal successors, (3818), 3016 states have internal predecessors, (3818), 1489 states have call successors, (1489), 264 states have call predecessors, (1489), 259 states have return successors, (1501), 1473 states have call predecessors, (1501), 1488 states have call successors, (1501) [2023-11-19 04:16:37,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4710 states to 4710 states and 6808 transitions. [2023-11-19 04:16:37,918 INFO L78 Accepts]: Start accepts. Automaton has 4710 states and 6808 transitions. Word has length 117 [2023-11-19 04:16:37,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:16:37,922 INFO L495 AbstractCegarLoop]: Abstraction has 4710 states and 6808 transitions. [2023-11-19 04:16:37,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 04:16:37,923 INFO L276 IsEmpty]: Start isEmpty. Operand 4710 states and 6808 transitions. [2023-11-19 04:16:37,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-19 04:16:37,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:16:37,941 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:16:37,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:16:37,941 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:16:37,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:16:37,952 INFO L85 PathProgramCache]: Analyzing trace with hash 746058881, now seen corresponding path program 1 times [2023-11-19 04:16:37,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:16:37,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105051268] [2023-11-19 04:16:37,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:16:37,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:16:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:16:42,849 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-11-19 04:16:42,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:16:42,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105051268] [2023-11-19 04:16:42,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105051268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:16:42,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:16:42,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 04:16:42,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717747557] [2023-11-19 04:16:42,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:16:42,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 04:16:42,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:16:42,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 04:16:42,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-19 04:16:42,852 INFO L87 Difference]: Start difference. First operand 4710 states and 6808 transitions. Second operand has 12 states, 10 states have (on average 6.3) internal successors, (63), 9 states have internal predecessors, (63), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18)