./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_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5/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_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5 --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-527bcce [2023-11-21 19:56:29,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:56:29,526 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:56:29,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:56:29,534 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:56:29,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:56:29,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:56:29,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:56:29,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:56:29,584 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:56:29,584 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:56:29,585 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:56:29,586 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:56:29,587 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:56:29,588 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:56:29,588 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:56:29,589 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:56:29,589 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:56:29,589 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:56:29,590 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:56:29,590 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:56:29,591 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:56:29,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:56:29,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:56:29,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:56:29,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:56:29,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:56:29,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:56:29,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:56:29,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:56:29,596 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:56:29,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:56:29,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:56:29,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:56:29,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:56:29,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:56:29,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:56:29,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:56:29,598 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:56:29,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:56:29,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:56:29,599 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:56:29,600 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:56:29,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:56:29,600 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_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 138fe782a458987488cb714d4ee7d6a854842ca7c110303f565f817a9360a8e5 [2023-11-21 19:56:29,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:56:29,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:56:29,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:56:29,998 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:56:29,999 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:56:30,000 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5/../../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 19:56:33,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:56:33,968 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:56:33,968 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/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 19:56:34,047 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5/data/5f5dc0841/2b36cecd3dbe47c88d565e1d87b82b5e/FLAG83427d79b [2023-11-21 19:56:34,065 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5/data/5f5dc0841/2b36cecd3dbe47c88d565e1d87b82b5e [2023-11-21 19:56:34,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:56:34,072 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:56:34,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:56:34,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:56:34,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:56:34,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:56:34" (1/1) ... [2023-11-21 19:56:34,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ef6bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:34, skipping insertion in model container [2023-11-21 19:56:34,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:56:34" (1/1) ... [2023-11-21 19:56:34,249 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:56:35,593 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_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/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 19:56:36,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:56:36,817 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:56:37,009 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 19:56:37,011 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 19:56:37,018 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 19:56:37,019 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 19:56:37,027 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_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/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 19:56:37,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:56:37,476 WARN L675 CHandler]: The function __VERIFIER_nondet_u8 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:56:37,476 WARN L675 CHandler]: The function __VERIFIER_nondet_u32 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:56:37,484 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:56:37,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:37 WrapperNode [2023-11-21 19:56:37,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:56:37,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:56:37,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:56:37,486 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:56:37,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:37" (1/1) ... [2023-11-21 19:56:37,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:37" (1/1) ... [2023-11-21 19:56:37,804 INFO L138 Inliner]: procedures = 247, calls = 2735, calls flagged for inlining = 135, calls inlined = 132, statements flattened = 6938 [2023-11-21 19:56:37,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:56:37,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:56:37,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:56:37,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:56:37,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:37" (1/1) ... [2023-11-21 19:56:37,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:37" (1/1) ... [2023-11-21 19:56:37,849 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:37" (1/1) ... [2023-11-21 19:56:37,849 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:37" (1/1) ... [2023-11-21 19:56:38,058 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:37" (1/1) ... [2023-11-21 19:56:38,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:37" (1/1) ... [2023-11-21 19:56:38,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:37" (1/1) ... [2023-11-21 19:56:38,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:37" (1/1) ... [2023-11-21 19:56:38,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:56:38,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:56:38,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:56:38,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:56:38,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:37" (1/1) ... [2023-11-21 19:56:38,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:56:38,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:56:38,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:56:38,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dbf7d11-8af5-4d3d-a0b2-b7568823e025/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:56:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2023-11-21 19:56:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2023-11-21 19:56:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pm_wakeup_card [2023-11-21 19:56:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pm_wakeup_card [2023-11-21 19:56:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 19:56:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 19:56:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 19:56:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 19:56:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-11-21 19:56:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-11-21 19:56:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_cmdrsp_buf [2023-11-21 19:56:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_cmdrsp_buf [2023-11-21 19:56:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 19:56:38,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 19:56:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2023-11-21 19:56:38,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2023-11-21 19:56:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_get_priv [2023-11-21 19:56:38,297 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_get_priv [2023-11-21 19:56:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-11-21 19:56:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-11-21 19:56:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2023-11-21 19:56:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2023-11-21 19:56:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_read_reg [2023-11-21 19:56:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_read_reg [2023-11-21 19:56:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_map_pci_memory [2023-11-21 19:56:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_map_pci_memory [2023-11-21 19:56:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_reg [2023-11-21 19:56:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_reg [2023-11-21 19:56:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 19:56:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 19:56:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-21 19:56:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-21 19:56:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 19:56:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 19:56:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:56:38,301 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:56:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-21 19:56:38,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-21 19:56:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 19:56:38,302 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 19:56:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_process_event_ready [2023-11-21 19:56:38,302 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_process_event_ready [2023-11-21 19:56:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:56:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:56:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-21 19:56:38,303 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-21 19:56:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2023-11-21 19:56:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 19:56:38,303 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 19:56:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_unmap_pci_memory [2023-11-21 19:56:38,303 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_unmap_pci_memory [2023-11-21 19:56:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:56:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:56:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_clean_pcie_ring_buf [2023-11-21 19:56:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_clean_pcie_ring_buf [2023-11-21 19:56:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_dev_wakeup_delay [2023-11-21 19:56:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_dev_wakeup_delay [2023-11-21 19:56:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 19:56:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 19:56:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 19:56:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 19:56:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_ok_to_access_hw [2023-11-21 19:56:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_ok_to_access_hw [2023-11-21 19:56:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-21 19:56:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-21 19:56:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_DMA_ADDR [2023-11-21 19:56:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_DMA_ADDR [2023-11-21 19:56:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 19:56:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 19:56:38,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 19:56:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-21 19:56:38,307 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-21 19:56:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_resume [2023-11-21 19:56:38,308 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_resume [2023-11-21 19:56:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_txbd_ring [2023-11-21 19:56:38,308 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_txbd_ring [2023-11-21 19:56:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 19:56:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_suspend [2023-11-21 19:56:38,309 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_suspend [2023-11-21 19:56:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:56:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-21 19:56:38,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-21 19:56:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 19:56:38,309 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 19:56:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_enable_host_int [2023-11-21 19:56:38,310 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_enable_host_int [2023-11-21 19:56:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_disable_host_int [2023-11-21 19:56:38,310 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_disable_host_int [2023-11-21 19:56:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_not_full [2023-11-21 19:56:38,311 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_not_full [2023-11-21 19:56:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-11-21 19:56:38,311 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-11-21 19:56:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_evtbd_ring [2023-11-21 19:56:38,311 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_evtbd_ring [2023-11-21 19:56:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 19:56:38,312 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 19:56:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2023-11-21 19:56:38,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2023-11-21 19:56:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-21 19:56:38,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-21 19:56:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:56:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-21 19:56:38,313 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-21 19:56:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-21 19:56:38,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-21 19:56:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-11-21 19:56:38,314 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-11-21 19:56:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2023-11-21 19:56:38,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2023-11-21 19:56:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-21 19:56:38,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-21 19:56:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 19:56:38,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 19:56:38,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:56:38,315 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-21 19:56:38,315 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-21 19:56:38,315 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_remove [2023-11-21 19:56:38,316 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_remove [2023-11-21 19:56:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:56:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_region [2023-11-21 19:56:38,316 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_region [2023-11-21 19:56:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_delete_rxbd_ring [2023-11-21 19:56:38,316 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_delete_rxbd_ring [2023-11-21 19:56:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:56:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-21 19:56:38,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-21 19:56:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-21 19:56:38,317 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-21 19:56:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure MWIFIEX_SKB_PACB [2023-11-21 19:56:38,318 INFO L138 BoogieDeclarations]: Found implementation of procedure MWIFIEX_SKB_PACB [2023-11-21 19:56:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-21 19:56:38,318 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-21 19:56:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-21 19:56:38,318 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-21 19:56:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:56:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2023-11-21 19:56:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:56:38,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:56:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_write_data_complete [2023-11-21 19:56:38,319 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_write_data_complete [2023-11-21 19:56:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure mwifiex_pcie_txbd_empty [2023-11-21 19:56:38,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mwifiex_pcie_txbd_empty [2023-11-21 19:56:39,207 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:56:39,211 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:56:40,341 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 19:56:48,755 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:56:51,859 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:56:51,859 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 19:56:51,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:56:51 BoogieIcfgContainer [2023-11-21 19:56:51,862 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:56:51,865 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:56:51,869 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:56:51,874 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:56:51,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:56:34" (1/3) ... [2023-11-21 19:56:51,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43519d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:56:51, skipping insertion in model container [2023-11-21 19:56:51,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:37" (2/3) ... [2023-11-21 19:56:51,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43519d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:56:51, skipping insertion in model container [2023-11-21 19:56:51,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:56:51" (3/3) ... [2023-11-21 19:56:51,879 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 19:56:51,900 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:56:51,900 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:56:52,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:56:52,009 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;@34122c74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:56:52,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:56:52,026 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 19:56:52,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 19:56:52,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:56:52,041 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 19:56:52,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:56:52,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:56:52,048 INFO L85 PathProgramCache]: Analyzing trace with hash -792605610, now seen corresponding path program 1 times [2023-11-21 19:56:52,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:56:52,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550578806] [2023-11-21 19:56:52,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:56:52,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:56:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:56:53,179 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 19:56:53,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:56:53,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550578806] [2023-11-21 19:56:53,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550578806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:56:53,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:56:53,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 19:56:53,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137626648] [2023-11-21 19:56:53,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:56:53,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:56:53,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:56:53,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:56:53,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:56:53,237 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 6 states, 6 states have (on average 2.8333333333333335) 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 19:56:55,637 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 19:57:01,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:57:06,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:57:09,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:57:10,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:57:15,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:57:18,101 WARN L539 Checker$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 19:57:21,018 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 []