./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ddd10c-15f5-4042-98ac-68c9144b9867/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ddd10c-15f5-4042-98ac-68c9144b9867/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_72ddd10c-15f5-4042-98ac-68c9144b9867/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ddd10c-15f5-4042-98ac-68c9144b9867/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ddd10c-15f5-4042-98ac-68c9144b9867/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_72ddd10c-15f5-4042-98ac-68c9144b9867/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 e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:13:57,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:13:58,029 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ddd10c-15f5-4042-98ac-68c9144b9867/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:13:58,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:13:58,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:13:58,076 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:13:58,077 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:13:58,078 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:13:58,079 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:13:58,080 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:13:58,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:13:58,081 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:13:58,082 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:13:58,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:13:58,083 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:13:58,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:13:58,085 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:13:58,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:13:58,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:13:58,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:13:58,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:13:58,092 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:13:58,093 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:13:58,093 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:13:58,094 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:13:58,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:13:58,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:13:58,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:13:58,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:58,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:13:58,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:13:58,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:13:58,100 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:13:58,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:13:58,101 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:13:58,106 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:13:58,127 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:13:58,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:13:58,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:13:58,128 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_72ddd10c-15f5-4042-98ac-68c9144b9867/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ddd10c-15f5-4042-98ac-68c9144b9867/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 [2023-11-21 22:13:58,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:13:58,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:13:58,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:13:58,458 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:13:58,459 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:13:58,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ddd10c-15f5-4042-98ac-68c9144b9867/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2023-11-21 22:14:01,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:14:02,489 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:14:02,490 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ddd10c-15f5-4042-98ac-68c9144b9867/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2023-11-21 22:14:02,555 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ddd10c-15f5-4042-98ac-68c9144b9867/bin/uautomizer-verify-bycVGegfSx/data/97050831a/6f8559697c9b46a7bc5d520b19a0325e/FLAG81417054c [2023-11-21 22:14:02,577 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ddd10c-15f5-4042-98ac-68c9144b9867/bin/uautomizer-verify-bycVGegfSx/data/97050831a/6f8559697c9b46a7bc5d520b19a0325e [2023-11-21 22:14:02,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:14:02,587 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:14:02,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:14:02,589 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:14:02,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:14:02,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:14:02" (1/1) ... [2023-11-21 22:14:02,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1610e74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:02, skipping insertion in model container [2023-11-21 22:14:02,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:14:02" (1/1) ... [2023-11-21 22:14:02,834 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:14:04,840 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_72ddd10c-15f5-4042-98ac-68c9144b9867/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2023-11-21 22:14:04,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:14:04,955 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:14:05,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6250] [2023-11-21 22:14:05,179 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [6257] [2023-11-21 22:14:05,185 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6402] [2023-11-21 22:14:05,185 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6409] [2023-11-21 22:14:05,186 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [6418] [2023-11-21 22:14:05,186 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [6426] [2023-11-21 22:14:05,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [6433] [2023-11-21 22:14:05,188 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [6441] [2023-11-21 22:14:05,201 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)); [6556-6557] [2023-11-21 22:14:05,204 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)); [6585-6586] [2023-11-21 22:14:05,206 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" (108), "i" (12UL)); [6615-6616] [2023-11-21 22:14:05,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6897] [2023-11-21 22:14:05,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6928] [2023-11-21 22:14:05,413 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_72ddd10c-15f5-4042-98ac-68c9144b9867/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2023-11-21 22:14:05,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:14:05,623 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:14:05,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05 WrapperNode [2023-11-21 22:14:05,624 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:14:05,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:14:05,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:14:05,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:14:05,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05" (1/1) ... [2023-11-21 22:14:05,742 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05" (1/1) ... [2023-11-21 22:14:05,880 INFO L138 Inliner]: procedures = 215, calls = 1704, calls flagged for inlining = 108, calls inlined = 105, statements flattened = 3325 [2023-11-21 22:14:05,881 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:14:05,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:14:05,882 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:14:05,882 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:14:05,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05" (1/1) ... [2023-11-21 22:14:05,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05" (1/1) ... [2023-11-21 22:14:05,922 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05" (1/1) ... [2023-11-21 22:14:07,025 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 22:14:07,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05" (1/1) ... [2023-11-21 22:14:07,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05" (1/1) ... [2023-11-21 22:14:07,175 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05" (1/1) ... [2023-11-21 22:14:07,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05" (1/1) ... [2023-11-21 22:14:07,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05" (1/1) ... [2023-11-21 22:14:07,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05" (1/1) ... [2023-11-21 22:14:07,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:14:07,324 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:14:07,324 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:14:07,324 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:14:07,325 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05" (1/1) ... [2023-11-21 22:14:07,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:14:07,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ddd10c-15f5-4042-98ac-68c9144b9867/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:07,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ddd10c-15f5-4042-98ac-68c9144b9867/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:14:07,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72ddd10c-15f5-4042-98ac-68c9144b9867/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:14:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:14:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:14:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 22:14:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 22:14:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 22:14:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 22:14:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-21 22:14:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-21 22:14:07,414 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-21 22:14:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-21 22:14:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-21 22:14:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-21 22:14:07,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:14:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:14:07,416 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-21 22:14:07,417 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-21 22:14:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:14:07,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:14:07,417 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-21 22:14:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-21 22:14:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:14:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:14:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:14:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:14:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 22:14:07,421 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 22:14:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-21 22:14:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-21 22:14:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-21 22:14:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-21 22:14:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:14:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2023-11-21 22:14:07,423 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2023-11-21 22:14:07,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:14:07,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-21 22:14:07,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-21 22:14:07,423 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 22:14:07,423 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 22:14:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:14:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-21 22:14:07,424 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-21 22:14:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:14:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2023-11-21 22:14:07,424 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2023-11-21 22:14:07,424 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:14:07,425 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:14:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-21 22:14:07,425 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-21 22:14:07,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-11-21 22:14:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-11-21 22:14:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2023-11-21 22:14:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2023-11-21 22:14:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-21 22:14:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-21 22:14:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-21 22:14:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-21 22:14:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 22:14:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 22:14:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2023-11-21 22:14:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2023-11-21 22:14:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2023-11-21 22:14:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2023-11-21 22:14:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-21 22:14:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-21 22:14:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2023-11-21 22:14:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2023-11-21 22:14:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:14:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2023-11-21 22:14:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2023-11-21 22:14:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2023-11-21 22:14:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2023-11-21 22:14:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-21 22:14:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-21 22:14:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:14:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-21 22:14:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-21 22:14:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2023-11-21 22:14:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2023-11-21 22:14:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-21 22:14:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-21 22:14:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:14:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2023-11-21 22:14:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2023-11-21 22:14:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-21 22:14:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-21 22:14:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-21 22:14:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-21 22:14:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 22:14:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 22:14:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2023-11-21 22:14:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2023-11-21 22:14:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-21 22:14:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-21 22:14:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-21 22:14:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-21 22:14:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:14:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-21 22:14:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-21 22:14:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-21 22:14:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-21 22:14:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-11-21 22:14:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-11-21 22:14:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:14:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:14:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-21 22:14:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-21 22:14:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:14:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-21 22:14:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-21 22:14:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2023-11-21 22:14:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2023-11-21 22:14:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:14:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2023-11-21 22:14:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2023-11-21 22:14:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 22:14:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 22:14:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:14:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2023-11-21 22:14:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2023-11-21 22:14:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-21 22:14:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-21 22:14:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2023-11-21 22:14:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2023-11-21 22:14:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2023-11-21 22:14:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2023-11-21 22:14:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2023-11-21 22:14:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2023-11-21 22:14:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-21 22:14:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-21 22:14:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-21 22:14:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-21 22:14:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:14:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2023-11-21 22:14:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2023-11-21 22:14:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-21 22:14:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-11-21 22:14:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:14:07,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:14:08,150 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:14:08,156 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:14:09,848 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 22:14:25,463 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:14:27,127 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:14:27,127 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:14:27,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:14:27 BoogieIcfgContainer [2023-11-21 22:14:27,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:14:27,134 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:14:27,134 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:14:27,138 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:14:27,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:14:02" (1/3) ... [2023-11-21 22:14:27,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c1a4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:14:27, skipping insertion in model container [2023-11-21 22:14:27,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:05" (2/3) ... [2023-11-21 22:14:27,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c1a4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:14:27, skipping insertion in model container [2023-11-21 22:14:27,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:14:27" (3/3) ... [2023-11-21 22:14:27,141 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2023-11-21 22:14:27,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:14:27,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:14:27,268 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:14:27,276 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;@525a2cec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:14:27,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:14:27,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 977 states, 593 states have (on average 1.315345699831366) internal successors, (780), 614 states have internal predecessors, (780), 322 states have call successors, (322), 61 states have call predecessors, (322), 60 states have return successors, (316), 316 states have call predecessors, (316), 316 states have call successors, (316) [2023-11-21 22:14:27,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-21 22:14:27,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:14:27,345 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:27,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:14:27,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:27,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1328991894, now seen corresponding path program 1 times [2023-11-21 22:14:27,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:27,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906241424] [2023-11-21 22:14:27,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:27,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:14:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:14:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:14:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:14:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:14:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:14:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 22:14:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:14:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:14:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-21 22:14:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:14:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-21 22:14:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:14:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 22:14:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-21 22:14:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:14:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:14:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-21 22:14:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:14:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-21 22:14:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:28,894 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-21 22:14:28,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:28,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906241424] [2023-11-21 22:14:28,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906241424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:28,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:28,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-21 22:14:28,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183774919] [2023-11-21 22:14:28,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:28,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-21 22:14:28,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:28,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-21 22:14:28,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:14:28,941 INFO L87 Difference]: Start difference. First operand has 977 states, 593 states have (on average 1.315345699831366) internal successors, (780), 614 states have internal predecessors, (780), 322 states have call successors, (322), 61 states have call predecessors, (322), 60 states have return successors, (316), 316 states have call predecessors, (316), 316 states have call successors, (316) Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-21 22:14:34,910 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 22:14:37,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:14:42,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:14:49,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:14:51,569 WARN L539 Checker$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 22:14:53,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:14:55,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []