./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 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.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_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:13:56,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:13:56,268 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:13:56,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:13:56,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:13:56,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:13:56,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:13:56,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:13:56,308 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:13:56,309 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:13:56,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:13:56,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:13:56,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:13:56,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:13:56,312 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:13:56,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:13:56,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:13:56,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:13:56,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:13:56,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:13:56,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:13:56,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:13:56,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:13:56,319 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:13:56,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:13:56,320 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:13:56,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:13:56,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:13:56,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:56,322 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:13:56,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:13:56,324 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:13:56,325 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:13:56,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:13:56,325 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:13:56,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:13:56,326 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:13:56,326 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:13:56,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:13:56,327 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 [2023-11-21 22:13:56,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:13:56,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:13:56,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:13:56,647 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:13:56,648 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:13:56,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx/../../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 [2023-11-21 22:13:59,869 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:14:00,545 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:14:00,548 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/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 [2023-11-21 22:14:00,626 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx/data/7e0e51d0c/0aad1cd21a6f43d0aead125eb8e417e0/FLAG0b575b1d0 [2023-11-21 22:14:00,646 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx/data/7e0e51d0c/0aad1cd21a6f43d0aead125eb8e417e0 [2023-11-21 22:14:00,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:14:00,651 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:14:00,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:14:00,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:14:00,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:14:00,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:14:00" (1/1) ... [2023-11-21 22:14:00,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e1b9937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:00, skipping insertion in model container [2023-11-21 22:14:00,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:14:00" (1/1) ... [2023-11-21 22:14:00,885 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:14:02,318 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_a278f613-272f-43a6-b4cc-83495d93d306/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] [2023-11-21 22:14:03,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:14:03,636 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:14:03,890 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] [2023-11-21 22:14:03,893 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] [2023-11-21 22:14:03,901 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] [2023-11-21 22:14:03,903 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] [2023-11-21 22:14:03,913 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_a278f613-272f-43a6-b4cc-83495d93d306/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] [2023-11-21 22:14:04,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:14:04,446 WARN L675 CHandler]: The function __VERIFIER_nondet_u8 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:14:04,446 WARN L675 CHandler]: The function __VERIFIER_nondet_u32 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:14:04,455 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:14:04,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04 WrapperNode [2023-11-21 22:14:04,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:14:04,457 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:14:04,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:14:04,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:14:04,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04" (1/1) ... [2023-11-21 22:14:04,607 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04" (1/1) ... [2023-11-21 22:14:04,890 INFO L138 Inliner]: procedures = 247, calls = 2735, calls flagged for inlining = 135, calls inlined = 132, statements flattened = 6938 [2023-11-21 22:14:04,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:14:04,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:14:04,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:14:04,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:14:04,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04" (1/1) ... [2023-11-21 22:14:04,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04" (1/1) ... [2023-11-21 22:14:04,967 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04" (1/1) ... [2023-11-21 22:14:06,856 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memset is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:14:06,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04" (1/1) ... [2023-11-21 22:14:06,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04" (1/1) ... [2023-11-21 22:14:07,051 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04" (1/1) ... [2023-11-21 22:14:07,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04" (1/1) ... [2023-11-21 22:14:07,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04" (1/1) ... [2023-11-21 22:14:07,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04" (1/1) ... [2023-11-21 22:14:07,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:14:07,281 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:14:07,281 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:14:07,282 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:14:07,283 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04" (1/1) ... [2023-11-21 22:14:07,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:14:07,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:07,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:14:07,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a278f613-272f-43a6-b4cc-83495d93d306/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:14:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2023-11-21 22:14:07,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2023-11-21 22:14:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pm_wakeup_card [2023-11-21 22:14:07,385 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pm_wakeup_card [2023-11-21 22:14:07,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:14:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:14:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 22:14:07,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 22:14:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-11-21 22:14:07,387 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-11-21 22:14:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_cmdrsp_buf [2023-11-21 22:14:07,388 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_cmdrsp_buf [2023-11-21 22:14:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:14:07,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:14:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2023-11-21 22:14:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2023-11-21 22:14:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2023-11-21 22:14:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2023-11-21 22:14:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-11-21 22:14:07,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-11-21 22:14:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2023-11-21 22:14:07,390 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2023-11-21 22:14:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_read_reg [2023-11-21 22:14:07,392 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_read_reg [2023-11-21 22:14:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_map_pci_memory [2023-11-21 22:14:07,392 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_map_pci_memory [2023-11-21 22:14:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_reg [2023-11-21 22:14:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_reg [2023-11-21 22:14:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:14:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:14:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-21 22:14:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-21 22:14:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:14:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:14:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:14:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:14:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-21 22:14:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-21 22:14:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 22:14:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 22:14:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_process_event_ready [2023-11-21 22:14:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_process_event_ready [2023-11-21 22:14:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:14:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:14:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-21 22:14:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-21 22:14:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2023-11-21 22:14:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 22:14:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 22:14:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unmap_pci_memory [2023-11-21 22:14:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unmap_pci_memory [2023-11-21 22:14:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:14:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:14:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_clean_pcie_ring_buf [2023-11-21 22:14:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_clean_pcie_ring_buf [2023-11-21 22:14:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_dev_wakeup_delay [2023-11-21 22:14:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_dev_wakeup_delay [2023-11-21 22:14:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:14:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:14:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 22:14:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 22:14:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_ok_to_access_hw [2023-11-21 22:14:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_ok_to_access_hw [2023-11-21 22:14:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-21 22:14:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-21 22:14:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_DMA_ADDR [2023-11-21 22:14:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_DMA_ADDR [2023-11-21 22:14:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:14:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 22:14:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 22:14:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-21 22:14:07,405 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-21 22:14:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_resume [2023-11-21 22:14:07,405 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_resume [2023-11-21 22:14:07,405 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_txbd_ring [2023-11-21 22:14:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_txbd_ring [2023-11-21 22:14:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:14:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_suspend [2023-11-21 22:14:07,406 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_suspend [2023-11-21 22:14:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:14:07,406 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-21 22:14:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-21 22:14:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 22:14:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 22:14:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_enable_host_int [2023-11-21 22:14:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_enable_host_int [2023-11-21 22:14:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_disable_host_int [2023-11-21 22:14:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_disable_host_int [2023-11-21 22:14:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_not_full [2023-11-21 22:14:07,409 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_not_full [2023-11-21 22:14:07,410 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-11-21 22:14:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-11-21 22:14:07,410 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_evtbd_ring [2023-11-21 22:14:07,410 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_evtbd_ring [2023-11-21 22:14:07,410 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 22:14:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 22:14:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2023-11-21 22:14:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2023-11-21 22:14:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-21 22:14:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-21 22:14:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:14:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-21 22:14:07,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-21 22:14:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-21 22:14:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-21 22:14:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-11-21 22:14:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-11-21 22:14:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2023-11-21 22:14:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2023-11-21 22:14:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-21 22:14:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-21 22:14:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:14:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:14:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:14:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-21 22:14:07,417 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-21 22:14:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_remove [2023-11-21 22:14:07,417 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_remove [2023-11-21 22:14:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:14:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_region [2023-11-21 22:14:07,417 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_region [2023-11-21 22:14:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_rxbd_ring [2023-11-21 22:14:07,418 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_rxbd_ring [2023-11-21 22:14:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:14:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-21 22:14:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-21 22:14:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-21 22:14:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-21 22:14:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_PACB [2023-11-21 22:14:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_PACB [2023-11-21 22:14:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-21 22:14:07,421 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-21 22:14:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-21 22:14:07,421 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-21 22:14:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:14:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2023-11-21 22:14:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:14:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:14:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_data_complete [2023-11-21 22:14:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_data_complete [2023-11-21 22:14:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_empty [2023-11-21 22:14:07,423 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_empty [2023-11-21 22:14:08,272 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:14:08,277 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:14:09,434 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 22:14:18,209 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:14:22,424 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:14:22,425 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:14:22,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:14:22 BoogieIcfgContainer [2023-11-21 22:14:22,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:14:22,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:14:22,436 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:14:22,440 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:14:22,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:14:00" (1/3) ... [2023-11-21 22:14:22,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51570051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:14:22, skipping insertion in model container [2023-11-21 22:14:22,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:04" (2/3) ... [2023-11-21 22:14:22,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51570051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:14:22, skipping insertion in model container [2023-11-21 22:14:22,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:14:22" (3/3) ... [2023-11-21 22:14:22,451 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 [2023-11-21 22:14:22,472 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:14:22,472 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:14:22,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:14:22,592 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=PETRI_NET, 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;@7e438b24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:14:22,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:14:22,605 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) [2023-11-21 22:14:22,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 22:14:22,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:22,619 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] [2023-11-21 22:14:22,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:14:22,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:22,640 INFO L85 PathProgramCache]: Analyzing trace with hash -792605610, now seen corresponding path program 1 times [2023-11-21 22:14:22,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:22,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930633054] [2023-11-21 22:14:22,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:22,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:24,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:14:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:24,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:14:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:24,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:14:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:24,217 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 22:14:24,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:24,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930633054] [2023-11-21 22:14:24,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930633054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:24,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:24,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:14:24,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177325336] [2023-11-21 22:14:24,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:24,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:14:24,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:24,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:14:24,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:14:24,291 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 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 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) [2023-11-21 22:14:27,156 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 [] [2023-11-21 22:14:29,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:14:38,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []