./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.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_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/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_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/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_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/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 1848e360a16ec6531e7d7aea690ab68ac7295c6b0bdec191a41fa9ee0518b66d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:24:52,746 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:24:52,820 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:24:52,826 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:24:52,827 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:24:52,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:24:52,857 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:24:52,857 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:24:52,858 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:24:52,859 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:24:52,860 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:24:52,860 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:24:52,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:24:52,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:24:52,862 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:24:52,863 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:24:52,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:24:52,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:24:52,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:24:52,866 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:24:52,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:24:52,867 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:24:52,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:24:52,868 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:24:52,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:24:52,869 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:24:52,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:24:52,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:24:52,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:52,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:24:52,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:24:52,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:24:52,873 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:24:52,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:24:52,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:24:52,873 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:24:52,874 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:24:52,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:24:52,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:24:52,875 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_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1848e360a16ec6531e7d7aea690ab68ac7295c6b0bdec191a41fa9ee0518b66d [2023-11-21 22:24:53,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:24:53,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:24:53,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:24:53,179 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:24:53,180 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:24:53,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2023-11-21 22:24:56,314 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:24:56,930 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:24:56,931 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2023-11-21 22:24:56,977 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/bin/uautomizer-verify-bycVGegfSx/data/79de073b4/2da1286cf46c48c3b3b8855e5ab2f084/FLAGf0d9124f0 [2023-11-21 22:24:56,997 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/bin/uautomizer-verify-bycVGegfSx/data/79de073b4/2da1286cf46c48c3b3b8855e5ab2f084 [2023-11-21 22:24:57,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:24:57,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:24:57,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:57,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:24:57,020 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:24:57,021 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:57" (1/1) ... [2023-11-21 22:24:57,022 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355fe64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:57, skipping insertion in model container [2023-11-21 22:24:57,022 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:57" (1/1) ... [2023-11-21 22:24:57,197 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:24:58,254 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_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2023-11-21 22:24:59,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:59,103 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:24:59,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [6556] [2023-11-21 22:24:59,288 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"); [6579] [2023-11-21 22:24:59,289 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6587-6588] [2023-11-21 22:24:59,290 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/inst/current/envs/linux-3.12-rc1.tar.xz/linux-3.12-rc1/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [6613-6614] [2023-11-21 22:24:59,291 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"); [6619-6621] [2023-11-21 22:24:59,297 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_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2023-11-21 22:24:59,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:59,591 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:24:59,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59 WrapperNode [2023-11-21 22:24:59,592 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:59,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:59,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:24:59,594 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:24:59,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59" (1/1) ... [2023-11-21 22:24:59,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59" (1/1) ... [2023-11-21 22:24:59,864 INFO L138 Inliner]: procedures = 201, calls = 1593, calls flagged for inlining = 91, calls inlined = 86, statements flattened = 2791 [2023-11-21 22:24:59,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:59,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:24:59,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:24:59,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:24:59,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59" (1/1) ... [2023-11-21 22:24:59,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59" (1/1) ... [2023-11-21 22:24:59,919 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59" (1/1) ... [2023-11-21 22:25:00,670 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 22:25:00,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59" (1/1) ... [2023-11-21 22:25:00,673 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59" (1/1) ... [2023-11-21 22:25:00,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59" (1/1) ... [2023-11-21 22:25:00,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59" (1/1) ... [2023-11-21 22:25:00,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59" (1/1) ... [2023-11-21 22:25:00,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59" (1/1) ... [2023-11-21 22:25:00,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:00,935 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:00,935 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:00,936 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:00,937 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59" (1/1) ... [2023-11-21 22:25:00,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:00,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:00,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:00,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a0c0bff-13b9-4be1-8963-eef2befb0dfa/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-21 22:25:01,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-21 22:25:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2023-11-21 22:25:01,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2023-11-21 22:25:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2023-11-21 22:25:01,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2023-11-21 22:25:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:25:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:25:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 22:25:01,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 22:25:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2023-11-21 22:25:01,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2023-11-21 22:25:01,021 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-21 22:25:01,021 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-21 22:25:01,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-21 22:25:01,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-21 22:25:01,022 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2023-11-21 22:25:01,022 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2023-11-21 22:25:01,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:25:01,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:25:01,022 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_sec_feed [2023-11-21 22:25:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_sec_feed [2023-11-21 22:25:01,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-21 22:25:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-21 22:25:01,023 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-21 22:25:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-21 22:25:01,023 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2023-11-21 22:25:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2023-11-21 22:25:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 22:25:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 22:25:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:25:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:25:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:25:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:25:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:25:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:25:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2023-11-21 22:25:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2023-11-21 22:25:01,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-11-21 22:25:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-11-21 22:25:01,026 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 22:25:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 22:25:01,026 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb [2023-11-21 22:25:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb [2023-11-21 22:25:01,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:25:01,027 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-21 22:25:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-21 22:25:01,027 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-21 22:25:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-21 22:25:01,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:25:01,028 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 22:25:01,028 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 22:25:01,028 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_feed [2023-11-21 22:25:01,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_feed [2023-11-21 22:25:01,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:25:01,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:25:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2023-11-21 22:25:01,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2023-11-21 22:25:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:25:01,029 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:25:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-21 22:25:01,029 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-21 22:25:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-21 22:25:01,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-21 22:25:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_ts_feed [2023-11-21 22:25:01,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_ts_feed [2023-11-21 22:25:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-21 22:25:01,030 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-21 22:25:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 22:25:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 22:25:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-21 22:25:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-21 22:25:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2023-11-21 22:25:01,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2023-11-21 22:25:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-21 22:25:01,032 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-21 22:25:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2023-11-21 22:25:01,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2023-11-21 22:25:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-21 22:25:01,032 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-21 22:25:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-21 22:25:01,033 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-21 22:25:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2023-11-21 22:25:01,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2023-11-21 22:25:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2023-11-21 22:25:01,033 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2023-11-21 22:25:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:25:01,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 22:25:01,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 22:25:01,034 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-21 22:25:01,034 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-21 22:25:01,034 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-21 22:25:01,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-21 22:25:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:25:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2023-11-21 22:25:01,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2023-11-21 22:25:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2023-11-21 22:25:01,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2023-11-21 22:25:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2023-11-21 22:25:01,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2023-11-21 22:25:01,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2023-11-21 22:25:01,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2023-11-21 22:25:01,036 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-11-21 22:25:01,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-11-21 22:25:01,036 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-11-21 22:25:01,037 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-11-21 22:25:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:25:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 22:25:01,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 22:25:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-21 22:25:01,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-21 22:25:01,038 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-21 22:25:01,038 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-21 22:25:01,038 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 22:25:01,038 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 22:25:01,038 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-21 22:25:01,038 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-21 22:25:01,039 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2023-11-21 22:25:01,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2023-11-21 22:25:01,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:25:01,039 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2023-11-21 22:25:01,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2023-11-21 22:25:01,039 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-21 22:25:01,039 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-21 22:25:01,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:25:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:25:01,040 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2023-11-21 22:25:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2023-11-21 22:25:01,040 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2023-11-21 22:25:01,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2023-11-21 22:25:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:25:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 22:25:01,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 22:25:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:25:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:25:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:25:01,042 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:25:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:25:01,042 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_init_rc [2023-11-21 22:25:01,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_init_rc [2023-11-21 22:25:01,042 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2023-11-21 22:25:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2023-11-21 22:25:01,043 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 22:25:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 22:25:01,043 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2023-11-21 22:25:01,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2023-11-21 22:25:01,043 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_handle_irq [2023-11-21 22:25:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_handle_irq [2023-11-21 22:25:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-21 22:25:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-21 22:25:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:25:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:01,798 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:01,831 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:02,205 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 22:25:08,548 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-11-21 22:25:09,142 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:10,317 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:10,317 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:25:10,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:10 BoogieIcfgContainer [2023-11-21 22:25:10,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:10,323 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:25:10,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:25:10,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:25:10,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:24:57" (1/3) ... [2023-11-21 22:25:10,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4744903f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:10, skipping insertion in model container [2023-11-21 22:25:10,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:59" (2/3) ... [2023-11-21 22:25:10,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4744903f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:10, skipping insertion in model container [2023-11-21 22:25:10,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:10" (3/3) ... [2023-11-21 22:25:10,331 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2023-11-21 22:25:10,352 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:25:10,352 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:25:10,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:25:10,433 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;@b480b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:25:10,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:25:10,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 990 states, 623 states have (on average 1.3370786516853932) internal successors, (833), 650 states have internal predecessors, (833), 298 states have call successors, (298), 69 states have call predecessors, (298), 67 states have return successors, (292), 284 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-21 22:25:10,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-21 22:25:10,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:10,455 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:10,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:10,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:10,462 INFO L85 PathProgramCache]: Analyzing trace with hash 220168092, now seen corresponding path program 1 times [2023-11-21 22:25:10,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:10,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435057194] [2023-11-21 22:25:10,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:10,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:11,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:11,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:25:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:11,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:25:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:11,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 22:25:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:11,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 22:25:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:11,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:25:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:11,603 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-21 22:25:11,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:11,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435057194] [2023-11-21 22:25:11,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435057194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:11,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:11,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:25:11,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619226704] [2023-11-21 22:25:11,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:11,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:25:11,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:11,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:25:11,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:11,667 INFO L87 Difference]: Start difference. First operand has 990 states, 623 states have (on average 1.3370786516853932) internal successors, (833), 650 states have internal predecessors, (833), 298 states have call successors, (298), 69 states have call predecessors, (298), 67 states have return successors, (292), 284 states have call predecessors, (292), 292 states have call successors, (292) Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-21 22:25:16,509 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 22:25:18,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:25:20,523 WARN L539 Checker$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 22:25:24,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:25:26,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:25:28,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:25:30,190 WARN L539 Checker$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 22:25:38,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:38,318 INFO L93 Difference]: Finished difference Result 3288 states and 4885 transitions. [2023-11-21 22:25:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:25:38,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2023-11-21 22:25:38,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:38,373 INFO L225 Difference]: With dead ends: 3288 [2023-11-21 22:25:38,373 INFO L226 Difference]: Without dead ends: 2289 [2023-11-21 22:25:38,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:25:38,390 INFO L413 NwaCegarLoop]: 1103 mSDtfsCounter, 2499 mSDsluCounter, 1796 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 1855 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 2899 SdHoareTripleChecker+Invalid, 3637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1855 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:38,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2723 Valid, 2899 Invalid, 3637 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1855 Valid, 1775 Invalid, 7 Unknown, 0 Unchecked, 26.0s Time] [2023-11-21 22:25:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2023-11-21 22:25:38,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 1927. [2023-11-21 22:25:38,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1927 states, 1222 states have (on average 1.3224222585924714) internal successors, (1616), 1256 states have internal predecessors, (1616), 572 states have call successors, (572), 133 states have call predecessors, (572), 132 states have return successors, (567), 551 states have call predecessors, (567), 567 states have call successors, (567) [2023-11-21 22:25:38,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2755 transitions. [2023-11-21 22:25:38,788 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2755 transitions. Word has length 46 [2023-11-21 22:25:38,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:38,790 INFO L495 AbstractCegarLoop]: Abstraction has 1927 states and 2755 transitions. [2023-11-21 22:25:38,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-21 22:25:38,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2755 transitions. [2023-11-21 22:25:38,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-21 22:25:38,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:38,802 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 22:25:38,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:25:38,802 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:38,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:38,803 INFO L85 PathProgramCache]: Analyzing trace with hash 193981115, now seen corresponding path program 1 times [2023-11-21 22:25:38,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:38,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865679433] [2023-11-21 22:25:38,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:38,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:39,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:25:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:39,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:25:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:39,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 22:25:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:39,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 22:25:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:39,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:25:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-21 22:25:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:39,923 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-21 22:25:39,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:39,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865679433] [2023-11-21 22:25:39,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865679433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:39,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:39,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:25:39,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219490132] [2023-11-21 22:25:39,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:39,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:25:39,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:39,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:25:39,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:39,933 INFO L87 Difference]: Start difference. First operand 1927 states and 2755 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-21 22:25:43,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:25:45,860 WARN L539 Checker$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 22:25:47,869 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 []