./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.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_235241bf-a8cb-4ed5-9c37-cd9dd748518d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235241bf-a8cb-4ed5-9c37-cd9dd748518d/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_235241bf-a8cb-4ed5-9c37-cd9dd748518d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235241bf-a8cb-4ed5-9c37-cd9dd748518d/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235241bf-a8cb-4ed5-9c37-cd9dd748518d/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_235241bf-a8cb-4ed5-9c37-cd9dd748518d/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 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:35,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:35,320 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235241bf-a8cb-4ed5-9c37-cd9dd748518d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:09:35,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:35,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:35,353 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:35,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:35,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:35,356 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:35,356 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:35,357 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:35,358 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:35,358 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:35,359 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:09:35,359 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:35,360 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:35,361 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:09:35,361 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:09:35,362 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:35,363 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:09:35,363 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:09:35,364 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:09:35,365 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:35,366 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:35,366 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:09:35,367 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:35,368 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:35,368 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:35,369 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:35,369 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:35,370 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:35,370 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:35,371 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:35,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:35,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:35,372 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:35,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:35,373 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:35,374 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:09:35,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:09:35,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:35,378 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:35,379 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:35,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:35,380 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_235241bf-a8cb-4ed5-9c37-cd9dd748518d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235241bf-a8cb-4ed5-9c37-cd9dd748518d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 [2023-11-23 21:09:35,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:35,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:35,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:35,717 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:35,717 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:35,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235241bf-a8cb-4ed5-9c37-cd9dd748518d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2023-11-23 21:09:38,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:39,705 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:39,706 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235241bf-a8cb-4ed5-9c37-cd9dd748518d/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2023-11-23 21:09:39,758 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235241bf-a8cb-4ed5-9c37-cd9dd748518d/bin/utaipan-verify-mE87zJ7Ire/data/4cf11efa9/bca944ff1e5d4f2d8b198d182cd41403/FLAGeed45cb17 [2023-11-23 21:09:39,774 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235241bf-a8cb-4ed5-9c37-cd9dd748518d/bin/utaipan-verify-mE87zJ7Ire/data/4cf11efa9/bca944ff1e5d4f2d8b198d182cd41403 [2023-11-23 21:09:39,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:39,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:39,780 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:39,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:39,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:39,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:39,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3344cad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:39, skipping insertion in model container [2023-11-23 21:09:39,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:39" (1/1) ... [2023-11-23 21:09:40,037 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:41,269 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_235241bf-a8cb-4ed5-9c37-cd9dd748518d/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2023-11-23 21:09:42,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:42,465 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:42,730 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 *)"./arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [7074-7075] [2023-11-23 21:09:42,732 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [7080-7082] [2023-11-23 21:09:42,741 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)); [7219-7220] [2023-11-23 21:09:42,746 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)); [7248-7249] [2023-11-23 21:09:42,753 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_235241bf-a8cb-4ed5-9c37-cd9dd748518d/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i[213580,213593] [2023-11-23 21:09:43,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:43,228 WARN L675 CHandler]: The function __VERIFIER_nondet_u8 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:43,228 WARN L675 CHandler]: The function __VERIFIER_nondet_u32 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:43,236 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:43,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:43 WrapperNode [2023-11-23 21:09:43,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:43,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:43,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:43,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:43,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:43" (1/1) ... [2023-11-23 21:09:43,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:43" (1/1) ... [2023-11-23 21:09:43,618 INFO L138 Inliner]: procedures = 247, calls = 2735, calls flagged for inlining = 135, calls inlined = 132, statements flattened = 6938 [2023-11-23 21:09:43,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:43,619 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:43,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:43,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:43,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:43" (1/1) ... [2023-11-23 21:09:43,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:43" (1/1) ... [2023-11-23 21:09:43,694 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:43" (1/1) ... [2023-11-23 21:09:43,700 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:43" (1/1) ... [2023-11-23 21:09:43,969 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:43" (1/1) ... [2023-11-23 21:09:44,011 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:43" (1/1) ... [2023-11-23 21:09:44,046 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:43" (1/1) ... [2023-11-23 21:09:44,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:43" (1/1) ... [2023-11-23 21:09:44,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:44,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:44,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:44,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:44,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:43" (1/1) ... [2023-11-23 21:09:44,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:44,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235241bf-a8cb-4ed5-9c37-cd9dd748518d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:44,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235241bf-a8cb-4ed5-9c37-cd9dd748518d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:44,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235241bf-a8cb-4ed5-9c37-cd9dd748518d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2023-11-23 21:09:44,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2023-11-23 21:09:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pm_wakeup_card [2023-11-23 21:09:44,204 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pm_wakeup_card [2023-11-23 21:09:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:09:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:09:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:09:44,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:09:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-11-23 21:09:44,205 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-11-23 21:09:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_cmdrsp_buf [2023-11-23 21:09:44,206 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_cmdrsp_buf [2023-11-23 21:09:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:09:44,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:09:44,208 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2023-11-23 21:09:44,208 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2023-11-23 21:09:44,208 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2023-11-23 21:09:44,208 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2023-11-23 21:09:44,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-11-23 21:09:44,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-11-23 21:09:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2023-11-23 21:09:44,210 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2023-11-23 21:09:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_read_reg [2023-11-23 21:09:44,211 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_read_reg [2023-11-23 21:09:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_map_pci_memory [2023-11-23 21:09:44,211 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_map_pci_memory [2023-11-23 21:09:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_reg [2023-11-23 21:09:44,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_reg [2023-11-23 21:09:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:09:44,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:09:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:09:44,213 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:09:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:09:44,213 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:09:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:09:44,213 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:09:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-23 21:09:44,214 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-23 21:09:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:09:44,214 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:09:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_process_event_ready [2023-11-23 21:09:44,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_process_event_ready [2023-11-23 21:09:44,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:09:44,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:09:44,215 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 21:09:44,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 21:09:44,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2023-11-23 21:09:44,215 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:09:44,216 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:09:44,216 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unmap_pci_memory [2023-11-23 21:09:44,216 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unmap_pci_memory [2023-11-23 21:09:44,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:09:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:09:44,217 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_clean_pcie_ring_buf [2023-11-23 21:09:44,217 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_clean_pcie_ring_buf [2023-11-23 21:09:44,218 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_dev_wakeup_delay [2023-11-23 21:09:44,219 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_dev_wakeup_delay [2023-11-23 21:09:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:09:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:09:44,220 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:09:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:09:44,220 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_ok_to_access_hw [2023-11-23 21:09:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_ok_to_access_hw [2023-11-23 21:09:44,221 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 21:09:44,221 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 21:09:44,221 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_DMA_ADDR [2023-11-23 21:09:44,221 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_DMA_ADDR [2023-11-23 21:09:44,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:09:44,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 21:09:44,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 21:09:44,223 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:09:44,223 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:09:44,223 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_resume [2023-11-23 21:09:44,223 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_resume [2023-11-23 21:09:44,223 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_txbd_ring [2023-11-23 21:09:44,224 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_txbd_ring [2023-11-23 21:09:44,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:09:44,224 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_suspend [2023-11-23 21:09:44,224 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_suspend [2023-11-23 21:09:44,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:09:44,225 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:09:44,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:09:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:09:44,226 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:09:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_enable_host_int [2023-11-23 21:09:44,226 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_enable_host_int [2023-11-23 21:09:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_disable_host_int [2023-11-23 21:09:44,227 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_disable_host_int [2023-11-23 21:09:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_not_full [2023-11-23 21:09:44,227 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_not_full [2023-11-23 21:09:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-11-23 21:09:44,228 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-11-23 21:09:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_evtbd_ring [2023-11-23 21:09:44,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_evtbd_ring [2023-11-23 21:09:44,228 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:09:44,228 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:09:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2023-11-23 21:09:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2023-11-23 21:09:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 21:09:44,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 21:09:44,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:09:44,230 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 21:09:44,230 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 21:09:44,230 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 21:09:44,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 21:09:44,231 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-11-23 21:09:44,231 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-11-23 21:09:44,231 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2023-11-23 21:09:44,232 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2023-11-23 21:09:44,232 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-23 21:09:44,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-23 21:09:44,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:09:44,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:09:44,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:09:44,233 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-23 21:09:44,234 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-23 21:09:44,234 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_remove [2023-11-23 21:09:44,234 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_remove [2023-11-23 21:09:44,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:44,234 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_region [2023-11-23 21:09:44,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_region [2023-11-23 21:09:44,235 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_rxbd_ring [2023-11-23 21:09:44,235 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_rxbd_ring [2023-11-23 21:09:44,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:09:44,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 21:09:44,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 21:09:44,236 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-23 21:09:44,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-23 21:09:44,237 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_PACB [2023-11-23 21:09:44,237 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_PACB [2023-11-23 21:09:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:09:44,238 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:09:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-23 21:09:44,238 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-23 21:09:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:09:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2023-11-23 21:09:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:44,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_data_complete [2023-11-23 21:09:44,239 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_data_complete [2023-11-23 21:09:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_empty [2023-11-23 21:09:44,241 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_empty [2023-11-23 21:09:45,177 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:45,181 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:46,229 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:09:54,873 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:09:57,815 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:09:57,815 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:09:57,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:57 BoogieIcfgContainer [2023-11-23 21:09:57,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:09:57,824 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:09:57,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:09:57,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:09:57,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:39" (1/3) ... [2023-11-23 21:09:57,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c4d50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:57, skipping insertion in model container [2023-11-23 21:09:57,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:43" (2/3) ... [2023-11-23 21:09:57,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c4d50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:09:57, skipping insertion in model container [2023-11-23 21:09:57,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:09:57" (3/3) ... [2023-11-23 21:09:57,840 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwifiex--mwifiex_pcie.ko-entry_point.cil.out.i [2023-11-23 21:09:57,863 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:09:57,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:09:57,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:09:57,999 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;@574b56e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:09:57,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:09:58,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 1521 states, 1016 states have (on average 1.3671259842519685) internal successors, (1389), 1037 states have internal predecessors, (1389), 442 states have call successors, (442), 62 states have call predecessors, (442), 61 states have return successors, (435), 435 states have call predecessors, (435), 435 states have call successors, (435) [2023-11-23 21:09:58,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 21:09:58,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:58,034 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:58,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:09:58,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:58,046 INFO L85 PathProgramCache]: Analyzing trace with hash -792605610, now seen corresponding path program 1 times [2023-11-23 21:09:58,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:09:58,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510467194] [2023-11-23 21:09:58,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:58,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:09:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:58,977 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:09:58,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:09:58,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510467194] [2023-11-23 21:09:58,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510467194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:58,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:58,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:58,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006496301] [2023-11-23 21:09:58,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:58,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:58,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:09:59,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:59,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:59,033 INFO L87 Difference]: Start difference. First operand has 1521 states, 1016 states have (on average 1.3671259842519685) internal successors, (1389), 1037 states have internal predecessors, (1389), 442 states have call successors, (442), 62 states have call predecessors, (442), 61 states have return successors, (435), 435 states have call predecessors, (435), 435 states have call successors, (435) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:10:01,283 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 21:10:04,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:07,237 WARN L539 Checker$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 21:10:09,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:10,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:13,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:16,265 WARN L539 Checker$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 21:10:18,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:20,293 WARN L539 Checker$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 21:10:20,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:20,309 INFO L93 Difference]: Finished difference Result 4515 states and 6743 transitions. [2023-11-23 21:10:20,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:10:20,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2023-11-23 21:10:20,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:20,377 INFO L225 Difference]: With dead ends: 4515 [2023-11-23 21:10:20,378 INFO L226 Difference]: Without dead ends: 2977 [2023-11-23 21:10:20,397 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 21:10:20,408 INFO L413 NwaCegarLoop]: 2086 mSDtfsCounter, 2223 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 5 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 4139 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:20,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2223 Valid, 4139 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 361 Invalid, 7 Unknown, 0 Unchecked, 21.0s Time] [2023-11-23 21:10:20,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2023-11-23 21:10:20,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 2977. [2023-11-23 21:10:20,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2977 states, 1999 states have (on average 1.355177588794397) internal successors, (2709), 2023 states have internal predecessors, (2709), 857 states have call successors, (857), 121 states have call predecessors, (857), 120 states have return successors, (856), 856 states have call predecessors, (856), 856 states have call successors, (856) [2023-11-23 21:10:20,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2977 states to 2977 states and 4422 transitions. [2023-11-23 21:10:20,776 INFO L78 Accepts]: Start accepts. Automaton has 2977 states and 4422 transitions. Word has length 30 [2023-11-23 21:10:20,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:20,777 INFO L495 AbstractCegarLoop]: Abstraction has 2977 states and 4422 transitions. [2023-11-23 21:10:20,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:10:20,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2977 states and 4422 transitions. [2023-11-23 21:10:20,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-23 21:10:20,786 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:20,787 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:20,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:10:20,787 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:20,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:20,788 INFO L85 PathProgramCache]: Analyzing trace with hash -278916809, now seen corresponding path program 1 times [2023-11-23 21:10:20,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:20,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706495764] [2023-11-23 21:10:20,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:20,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:21,551 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:10:21,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:21,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706495764] [2023-11-23 21:10:21,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706495764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:21,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:21,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:10:21,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290079901] [2023-11-23 21:10:21,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:21,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:10:21,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:21,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:10:21,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:10:21,558 INFO L87 Difference]: Start difference. First operand 2977 states and 4422 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 21:10:23,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:25,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:29,898 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 []