./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--scsi--initio.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire --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 bca836bbe3a531e36018faf0b4374aec0682953aa5034dcc910310719152fdea --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:11,448 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:11,553 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:34:11,559 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:11,560 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:11,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:11,591 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:11,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:11,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:11,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:11,594 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:11,594 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:11,595 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:11,595 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:34:11,596 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:11,596 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:11,597 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:34:11,598 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:34:11,598 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:11,599 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:34:11,599 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:34:11,600 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:34:11,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:11,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:11,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:34:11,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:11,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:11,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:11,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:11,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:11,604 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:11,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:11,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:11,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:11,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:11,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:11,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:11,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:11,608 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:34:11,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:34:11,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:11,611 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:11,611 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:11,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:11,612 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_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bca836bbe3a531e36018faf0b4374aec0682953aa5034dcc910310719152fdea [2023-11-23 20:34:11,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:11,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:11,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:11,960 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:11,960 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:11,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i [2023-11-23 20:34:15,073 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:15,679 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:15,680 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i [2023-11-23 20:34:15,741 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire/data/6f8871dd9/78f6a8abbcf44c63a8e3e756cfc30693/FLAG175f3bfaa [2023-11-23 20:34:15,758 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire/data/6f8871dd9/78f6a8abbcf44c63a8e3e756cfc30693 [2023-11-23 20:34:15,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:15,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:15,770 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:15,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:15,776 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:15,779 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:15" (1/1) ... [2023-11-23 20:34:15,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4259f4a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:15, skipping insertion in model container [2023-11-23 20:34:15,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:15" (1/1) ... [2023-11-23 20:34:15,970 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:17,834 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_82aa85d6-925a-40b8-8b42-cdcf8d86046e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i[238430,238443] [2023-11-23 20:34:17,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:17,937 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:18,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [4621] [2023-11-23 20:34:18,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [4680] [2023-11-23 20:34:18,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [4688] [2023-11-23 20:34:18,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [4695] [2023-11-23 20:34:18,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [4703] [2023-11-23 20:34:18,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [4817-4818] [2023-11-23 20:34:18,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [4846-4847] [2023-11-23 20:34:18,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/3515/dscv_tempdir/dscv/ri/43_2a/drivers/scsi/initio.c"), "i" (2604), "i" (12UL)); [7714-7715] [2023-11-23 20:34:18,471 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_82aa85d6-925a-40b8-8b42-cdcf8d86046e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i[238430,238443] [2023-11-23 20:34:18,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:18,576 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:18,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:18 WrapperNode [2023-11-23 20:34:18,577 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:18,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:18,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:18,579 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:18,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:18" (1/1) ... [2023-11-23 20:34:18,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:18" (1/1) ... [2023-11-23 20:34:18,953 INFO L138 Inliner]: procedures = 213, calls = 1969, calls flagged for inlining = 114, calls inlined = 111, statements flattened = 5433 [2023-11-23 20:34:18,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:18,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:18,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:18,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:18,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:18" (1/1) ... [2023-11-23 20:34:18,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:18" (1/1) ... [2023-11-23 20:34:19,086 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:18" (1/1) ... [2023-11-23 20:34:19,086 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:18" (1/1) ... [2023-11-23 20:34:19,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:18" (1/1) ... [2023-11-23 20:34:19,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:18" (1/1) ... [2023-11-23 20:34:19,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:18" (1/1) ... [2023-11-23 20:34:19,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:18" (1/1) ... [2023-11-23 20:34:19,401 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:19,402 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:19,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:19,403 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:19,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:18" (1/1) ... [2023-11-23 20:34:19,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:19,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:19,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:19,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82aa85d6-925a-40b8-8b42-cdcf8d86046e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:34:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:34:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:34:19,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:34:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure initio_status_msg [2023-11-23 20:34:19,493 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_status_msg [2023-11-23 20:34:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:34:19,493 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:34:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure initio_select_atn_stop [2023-11-23 20:34:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_select_atn_stop [2023-11-23 20:34:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgin_accept [2023-11-23 20:34:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgin_accept [2023-11-23 20:34:19,495 INFO L130 BoogieDeclarations]: Found specification of procedure initio_remove_one [2023-11-23 20:34:19,495 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_remove_one [2023-11-23 20:34:19,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 20:34:19,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 20:34:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:34:19,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:34:19,497 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2023-11-23 20:34:19,497 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2023-11-23 20:34:19,497 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 20:34:19,498 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 20:34:19,498 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_scsi_rst [2023-11-23 20:34:19,499 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_scsi_rst [2023-11-23 20:34:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure initio_abort_srb [2023-11-23 20:34:19,499 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_abort_srb [2023-11-23 20:34:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:34:19,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:34:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2023-11-23 20:34:19,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2023-11-23 20:34:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 20:34:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 20:34:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure initio_next_state [2023-11-23 20:34:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_next_state [2023-11-23 20:34:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:34:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:34:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:34:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:34:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure initio_unlink_pend_scb [2023-11-23 20:34:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_unlink_pend_scb [2023-11-23 20:34:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 20:34:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 20:34:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_busy_scb [2023-11-23 20:34:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_busy_scb [2023-11-23 20:34:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-23 20:34:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-23 20:34:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:34:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_reject [2023-11-23 20:34:19,503 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_reject [2023-11-23 20:34:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:34:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure initio_se2_rd_all [2023-11-23 20:34:19,504 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_se2_rd_all [2023-11-23 20:34:19,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 20:34:19,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 20:34:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 20:34:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 20:34:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:34:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:34:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:34:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:34:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure initio_release_scb [2023-11-23 20:34:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_release_scb [2023-11-23 20:34:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_scsi [2023-11-23 20:34:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_scsi [2023-11-23 20:34:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-23 20:34:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-23 20:34:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-23 20:34:19,509 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-23 20:34:19,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:34:19,509 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 20:34:19,509 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 20:34:19,509 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_abort_targ [2023-11-23 20:34:19,509 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_abort_targ [2023-11-23 20:34:19,510 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 20:34:19,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 20:34:19,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:34:19,510 INFO L130 BoogieDeclarations]: Found specification of procedure initio_se2_instr [2023-11-23 20:34:19,510 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_se2_instr [2023-11-23 20:34:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:34:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure initio_find_first_pend_scb [2023-11-23 20:34:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_find_first_pend_scb [2023-11-23 20:34:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 20:34:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 20:34:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure initio_unlink_busy_scb [2023-11-23 20:34:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_unlink_busy_scb [2023-11-23 20:34:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure initio_wait_done_disc [2023-11-23 20:34:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_wait_done_disc [2023-11-23 20:34:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-23 20:34:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-23 20:34:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:34:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 20:34:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 20:34:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure initio_stop_bm [2023-11-23 20:34:19,514 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_stop_bm [2023-11-23 20:34:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-23 20:34:19,514 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-23 20:34:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure wait_tulip [2023-11-23 20:34:19,514 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_tulip [2023-11-23 20:34:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:34:19,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:34:19,515 INFO L130 BoogieDeclarations]: Found specification of procedure initio_pop_busy_scb [2023-11-23 20:34:19,515 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_pop_busy_scb [2023-11-23 20:34:19,516 INFO L130 BoogieDeclarations]: Found specification of procedure initio_bad_seq [2023-11-23 20:34:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_bad_seq [2023-11-23 20:34:19,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 20:34:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 20:34:19,516 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_resel [2023-11-23 20:34:19,517 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_resel [2023-11-23 20:34:19,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:34:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-23 20:34:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-23 20:34:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_abort_tag [2023-11-23 20:34:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_abort_tag [2023-11-23 20:34:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 20:34:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 20:34:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:34:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 20:34:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 20:34:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2023-11-23 20:34:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2023-11-23 20:34:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure initio_reset_scsi [2023-11-23 20:34:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_reset_scsi [2023-11-23 20:34:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_done_scb [2023-11-23 20:34:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_done_scb [2023-11-23 20:34:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_pend_scb [2023-11-23 20:34:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_pend_scb [2023-11-23 20:34:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgin [2023-11-23 20:34:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgin [2023-11-23 20:34:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-23 20:34:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-23 20:34:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_main [2023-11-23 20:34:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_main [2023-11-23 20:34:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:34:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 20:34:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 20:34:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_busfree [2023-11-23 20:34:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_busfree [2023-11-23 20:34:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure initio_sync_done [2023-11-23 20:34:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_sync_done [2023-11-23 20:34:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure initio_wait_disc [2023-11-23 20:34:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_wait_disc [2023-11-23 20:34:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2023-11-23 20:34:19,529 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2023-11-23 20:34:20,369 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:20,373 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:20,769 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:34:27,687 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:31,180 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:31,182 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:34:31,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:31 BoogieIcfgContainer [2023-11-23 20:34:31,185 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:31,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:31,189 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:31,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:31,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:15" (1/3) ... [2023-11-23 20:34:31,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3975fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:31, skipping insertion in model container [2023-11-23 20:34:31,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:18" (2/3) ... [2023-11-23 20:34:31,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3975fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:31, skipping insertion in model container [2023-11-23 20:34:31,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:31" (3/3) ... [2023-11-23 20:34:31,199 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--initio.ko-entry_point.cil.out.i [2023-11-23 20:34:31,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:31,225 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:31,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:31,366 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;@50668e4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:31,366 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:31,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 1529 states, 940 states have (on average 1.3308510638297872) internal successors, (1251), 975 states have internal predecessors, (1251), 523 states have call successors, (523), 65 states have call predecessors, (523), 64 states have return successors, (517), 511 states have call predecessors, (517), 517 states have call successors, (517) [2023-11-23 20:34:31,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-23 20:34:31,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:31,428 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2023-11-23 20:34:31,429 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:31,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:31,438 INFO L85 PathProgramCache]: Analyzing trace with hash -576137860, now seen corresponding path program 1 times [2023-11-23 20:34:31,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:31,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717906216] [2023-11-23 20:34:31,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:31,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-23 20:34:32,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:32,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717906216] [2023-11-23 20:34:32,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717906216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:32,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:32,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:34:32,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567542384] [2023-11-23 20:34:32,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:32,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:32,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:32,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:32,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:34:32,511 INFO L87 Difference]: Start difference. First operand has 1529 states, 940 states have (on average 1.3308510638297872) internal successors, (1251), 975 states have internal predecessors, (1251), 523 states have call successors, (523), 65 states have call predecessors, (523), 64 states have return successors, (517), 511 states have call predecessors, (517), 517 states have call successors, (517) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 20:34:34,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-23 20:34:37,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:40,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:42,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:45,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:48,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:51,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:52,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:52,825 INFO L93 Difference]: Finished difference Result 4352 states and 6510 transitions. [2023-11-23 20:34:52,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:52,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 95 [2023-11-23 20:34:52,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:52,901 INFO L225 Difference]: With dead ends: 4352 [2023-11-23 20:34:52,901 INFO L226 Difference]: Without dead ends: 2813 [2023-11-23 20:34:52,928 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 [2023-11-23 20:34:52,933 INFO L413 NwaCegarLoop]: 2235 mSDtfsCounter, 1956 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 4266 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:52,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1956 Valid, 4266 Invalid, 500 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 492 Invalid, 4 Unknown, 0 Unchecked, 19.9s Time] [2023-11-23 20:34:52,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2023-11-23 20:34:53,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 2813. [2023-11-23 20:34:53,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 1753 states have (on average 1.3217341699942955) internal successors, (2317), 1802 states have internal predecessors, (2317), 939 states have call successors, (939), 121 states have call predecessors, (939), 120 states have return successors, (938), 927 states have call predecessors, (938), 938 states have call successors, (938) [2023-11-23 20:34:53,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 4194 transitions. [2023-11-23 20:34:53,622 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 4194 transitions. Word has length 95 [2023-11-23 20:34:53,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:53,623 INFO L495 AbstractCegarLoop]: Abstraction has 2813 states and 4194 transitions. [2023-11-23 20:34:53,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-23 20:34:53,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 4194 transitions. [2023-11-23 20:34:53,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 20:34:53,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:53,642 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:53,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:34:53,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:53,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:53,644 INFO L85 PathProgramCache]: Analyzing trace with hash 124474341, now seen corresponding path program 1 times [2023-11-23 20:34:53,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:53,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872623376] [2023-11-23 20:34:53,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:53,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:54,494 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-23 20:34:54,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:54,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872623376] [2023-11-23 20:34:54,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872623376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:54,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:54,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:34:54,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674094709] [2023-11-23 20:34:54,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:54,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:34:54,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:54,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:34:54,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:34:54,519 INFO L87 Difference]: Start difference. First operand 2813 states and 4194 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 20:34:57,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:59,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:01,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:04,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:07,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []