./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/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_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--initio.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/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_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/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 9a12ad8c8f82d9497d9fb295ce6f252aae97c90123ce998a3f7bb078893d44d4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:22,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:23,056 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:16:23,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:23,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:23,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:23,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:23,092 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:23,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:23,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:23,094 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:23,095 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:23,096 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:23,096 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:23,097 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:23,097 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:23,098 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:23,099 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:23,099 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:23,100 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:23,100 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:23,101 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:23,102 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:23,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:23,103 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:23,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:23,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:23,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:23,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:23,105 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:23,106 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:23,106 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:23,106 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:23,107 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:23,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:23,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:23,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:23,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:23,108 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:23,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:23,109 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:23,109 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:23,110 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:23,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:23,110 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_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a12ad8c8f82d9497d9fb295ce6f252aae97c90123ce998a3f7bb078893d44d4 [2023-11-23 21:16:23,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:23,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:23,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:23,421 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:23,421 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:23,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--initio.ko-entry_point.cil.out.i [2023-11-23 21:16:26,483 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:27,234 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:27,234 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--initio.ko-entry_point.cil.out.i [2023-11-23 21:16:27,290 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/bin/utaipan-verify-mE87zJ7Ire/data/ad2ed8469/6e2b5873090d46d89a207f18097721a0/FLAG31cd91338 [2023-11-23 21:16:27,308 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/bin/utaipan-verify-mE87zJ7Ire/data/ad2ed8469/6e2b5873090d46d89a207f18097721a0 [2023-11-23 21:16:27,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:27,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:27,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:27,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:27,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:27,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:27" (1/1) ... [2023-11-23 21:16:27,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7804b13d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:27, skipping insertion in model container [2023-11-23 21:16:27,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:27" (1/1) ... [2023-11-23 21:16:27,624 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:29,625 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_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--initio.ko-entry_point.cil.out.i[240484,240497] [2023-11-23 21:16:29,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:29,834 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:29,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [4519] [2023-11-23 21:16:29,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [4683] [2023-11-23 21:16:29,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [4691] [2023-11-23 21:16:29,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [4698] [2023-11-23 21:16:29,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [4706] [2023-11-23 21:16:30,041 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)); [4841-4842] [2023-11-23 21:16:30,043 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)); [4870-4871] [2023-11-23 21:16:30,287 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/6308/dscv_tempdir/dscv/ri/32_7a/drivers/scsi/initio.c"), "i" (2604), "i" (12UL)); [7752-7753] [2023-11-23 21:16:30,336 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_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--initio.ko-entry_point.cil.out.i[240484,240497] [2023-11-23 21:16:30,361 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:30,462 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:30,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:30 WrapperNode [2023-11-23 21:16:30,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:30,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:30,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:30,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:30,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:30" (1/1) ... [2023-11-23 21:16:30,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:30" (1/1) ... [2023-11-23 21:16:30,847 INFO L138 Inliner]: procedures = 250, calls = 2038, calls flagged for inlining = 112, calls inlined = 108, statements flattened = 5448 [2023-11-23 21:16:30,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:30,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:30,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:30,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:30,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:30" (1/1) ... [2023-11-23 21:16:30,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:30" (1/1) ... [2023-11-23 21:16:30,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:30" (1/1) ... [2023-11-23 21:16:30,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:30" (1/1) ... [2023-11-23 21:16:31,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:30" (1/1) ... [2023-11-23 21:16:31,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:30" (1/1) ... [2023-11-23 21:16:31,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:30" (1/1) ... [2023-11-23 21:16:31,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:30" (1/1) ... [2023-11-23 21:16:31,312 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:31,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:31,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:31,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:31,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:30" (1/1) ... [2023-11-23 21:16:31,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:31,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:31,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:31,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8eeba6bf-2842-4df1-bc4e-e885fd2c6e9b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:16:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:16:31,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:16:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:16:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure initio_status_msg [2023-11-23 21:16:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_status_msg [2023-11-23 21:16:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:16:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:16:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure initio_select_atn_stop [2023-11-23 21:16:31,391 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_select_atn_stop [2023-11-23 21:16:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgin_accept [2023-11-23 21:16:31,392 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgin_accept [2023-11-23 21:16:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure initio_remove_one [2023-11-23 21:16:31,392 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_remove_one [2023-11-23 21:16:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:16:31,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:16:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2023-11-23 21:16:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2023-11-23 21:16:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:16:31,394 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:16:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_scsi_rst [2023-11-23 21:16:31,395 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_scsi_rst [2023-11-23 21:16:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure initio_abort_srb [2023-11-23 21:16:31,396 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_abort_srb [2023-11-23 21:16:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:16:31,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:16:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2023-11-23 21:16:31,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2023-11-23 21:16:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:16:31,398 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:16:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure initio_next_state [2023-11-23 21:16:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_next_state [2023-11-23 21:16:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:16:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:16:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:16:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:16:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure initio_unlink_pend_scb [2023-11-23 21:16:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_unlink_pend_scb [2023-11-23 21:16:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:16:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:16:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_busy_scb [2023-11-23 21:16:31,400 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_busy_scb [2023-11-23 21:16:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-23 21:16:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-23 21:16:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:16:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_reject [2023-11-23 21:16:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_reject [2023-11-23 21:16:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:16:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure initio_se2_rd_all [2023-11-23 21:16:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_se2_rd_all [2023-11-23 21:16:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:16:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:16:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:16:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:16:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:16:31,404 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:16:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure initio_release_scb [2023-11-23 21:16:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_release_scb [2023-11-23 21:16:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_scsi [2023-11-23 21:16:31,405 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_scsi [2023-11-23 21:16:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 21:16:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 21:16:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-23 21:16:31,406 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-23 21:16:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-23 21:16:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-23 21:16:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:16:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:16:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:16:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_abort_targ [2023-11-23 21:16:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_abort_targ [2023-11-23 21:16:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:16:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:16:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:16:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure initio_se2_instr [2023-11-23 21:16:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_se2_instr [2023-11-23 21:16:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:16:31,409 INFO L130 BoogieDeclarations]: Found specification of procedure initio_find_first_pend_scb [2023-11-23 21:16:31,410 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_find_first_pend_scb [2023-11-23 21:16:31,410 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:16:31,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:16:31,411 INFO L130 BoogieDeclarations]: Found specification of procedure initio_unlink_busy_scb [2023-11-23 21:16:31,411 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_unlink_busy_scb [2023-11-23 21:16:31,411 INFO L130 BoogieDeclarations]: Found specification of procedure initio_wait_done_disc [2023-11-23 21:16:31,411 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_wait_done_disc [2023-11-23 21:16:31,411 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-23 21:16:31,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-23 21:16:31,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:16:31,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 21:16:31,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 21:16:31,412 INFO L130 BoogieDeclarations]: Found specification of procedure initio_stop_bm [2023-11-23 21:16:31,412 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_stop_bm [2023-11-23 21:16:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-23 21:16:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-23 21:16:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure wait_tulip [2023-11-23 21:16:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_tulip [2023-11-23 21:16:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:16:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:16:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure initio_pop_busy_scb [2023-11-23 21:16:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_pop_busy_scb [2023-11-23 21:16:31,414 INFO L130 BoogieDeclarations]: Found specification of procedure initio_bad_seq [2023-11-23 21:16:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_bad_seq [2023-11-23 21:16:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:16:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:16:31,415 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_resel [2023-11-23 21:16:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_resel [2023-11-23 21:16:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:16:31,416 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-23 21:16:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-23 21:16:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgout_abort_tag [2023-11-23 21:16:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgout_abort_tag [2023-11-23 21:16:31,417 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:16:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:16:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:16:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 21:16:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 21:16:31,418 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2023-11-23 21:16:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2023-11-23 21:16:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure initio_reset_scsi [2023-11-23 21:16:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_reset_scsi [2023-11-23 21:16:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_done_scb [2023-11-23 21:16:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_done_scb [2023-11-23 21:16:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure initio_append_pend_scb [2023-11-23 21:16:31,420 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_append_pend_scb [2023-11-23 21:16:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure initio_msgin [2023-11-23 21:16:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_msgin [2023-11-23 21:16:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-23 21:16:31,421 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-23 21:16:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_main [2023-11-23 21:16:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_main [2023-11-23 21:16:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:16:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:16:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure int_initio_busfree [2023-11-23 21:16:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure int_initio_busfree [2023-11-23 21:16:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure initio_sync_done [2023-11-23 21:16:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_sync_done [2023-11-23 21:16:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure initio_wait_disc [2023-11-23 21:16:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure initio_wait_disc [2023-11-23 21:16:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2023-11-23 21:16:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2023-11-23 21:16:32,183 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:32,187 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:32,598 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:16:39,537 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:43,362 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:43,367 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:16:43,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:43 BoogieIcfgContainer [2023-11-23 21:16:43,370 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:43,374 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:43,374 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:43,377 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:43,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:27" (1/3) ... [2023-11-23 21:16:43,379 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bdff8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:43, skipping insertion in model container [2023-11-23 21:16:43,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:30" (2/3) ... [2023-11-23 21:16:43,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bdff8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:43, skipping insertion in model container [2023-11-23 21:16:43,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:43" (3/3) ... [2023-11-23 21:16:43,382 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--initio.ko-entry_point.cil.out.i [2023-11-23 21:16:43,402 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:43,402 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:43,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:43,522 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;@5b53509b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:43,522 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:43,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 1538 states, 944 states have (on average 1.3305084745762712) internal successors, (1256), 981 states have internal predecessors, (1256), 529 states have call successors, (529), 64 states have call predecessors, (529), 63 states have return successors, (523), 517 states have call predecessors, (523), 523 states have call successors, (523) [2023-11-23 21:16:43,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 21:16:43,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:43,549 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:16:43,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:43,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:43,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1416203021, now seen corresponding path program 1 times [2023-11-23 21:16:43,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:43,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673854899] [2023-11-23 21:16:43,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:43,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 21:16:44,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:44,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673854899] [2023-11-23 21:16:44,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673854899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:44,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:44,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:44,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568675352] [2023-11-23 21:16:44,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:44,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:44,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:44,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:44,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:44,566 INFO L87 Difference]: Start difference. First operand has 1538 states, 944 states have (on average 1.3305084745762712) internal successors, (1256), 981 states have internal predecessors, (1256), 529 states have call successors, (529), 64 states have call predecessors, (529), 63 states have return successors, (523), 517 states have call predecessors, (523), 523 states have call successors, (523) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:16:46,677 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 21:16:50,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:52,487 WARN L539 Checker$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 21:16:54,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:56,822 WARN L539 Checker$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 21:16:59,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:06,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:08,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:09,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:09,220 INFO L93 Difference]: Finished difference Result 4572 states and 6865 transitions. [2023-11-23 21:17:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:17:09,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 70 [2023-11-23 21:17:09,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:09,269 INFO L225 Difference]: With dead ends: 4572 [2023-11-23 21:17:09,269 INFO L226 Difference]: Without dead ends: 3025 [2023-11-23 21:17:09,285 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 21:17:09,289 INFO L413 NwaCegarLoop]: 2887 mSDtfsCounter, 2262 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2262 SdHoareTripleChecker+Valid, 4949 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:09,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2262 Valid, 4949 Invalid, 544 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 535 Invalid, 6 Unknown, 0 Unchecked, 24.3s Time] [2023-11-23 21:17:09,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2023-11-23 21:17:09,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 3025. [2023-11-23 21:17:09,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 1864 states have (on average 1.3197424892703862) internal successors, (2460), 1920 states have internal predecessors, (2460), 1036 states have call successors, (1036), 125 states have call predecessors, (1036), 124 states have return successors, (1033), 1021 states have call predecessors, (1033), 1033 states have call successors, (1033) [2023-11-23 21:17:09,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 4529 transitions. [2023-11-23 21:17:09,898 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 4529 transitions. Word has length 70 [2023-11-23 21:17:09,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:09,901 INFO L495 AbstractCegarLoop]: Abstraction has 3025 states and 4529 transitions. [2023-11-23 21:17:09,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:17:09,902 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 4529 transitions. [2023-11-23 21:17:09,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 21:17:09,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:09,916 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:17:09,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:17:09,917 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:09,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:09,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1499023211, now seen corresponding path program 1 times [2023-11-23 21:17:09,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:09,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427649996] [2023-11-23 21:17:09,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:09,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:10,389 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-23 21:17:10,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:10,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427649996] [2023-11-23 21:17:10,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427649996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:10,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:10,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:17:10,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734584803] [2023-11-23 21:17:10,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:10,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:10,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:10,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:10,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:10,394 INFO L87 Difference]: Start difference. First operand 3025 states and 4529 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:17:11,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-11-23 21:17:14,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:17,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []