./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.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_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:53:10,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:53:10,669 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:53:10,676 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:53:10,677 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:53:10,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:53:10,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:53:10,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:53:10,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:53:10,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:53:10,727 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:53:10,728 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:53:10,729 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:53:10,729 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:53:10,730 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:53:10,730 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:53:10,731 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:53:10,731 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:53:10,732 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:53:10,732 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:53:10,733 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:53:10,734 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:53:10,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:53:10,735 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:53:10,736 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:53:10,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:53:10,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:53:10,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:53:10,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:53:10,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:53:10,739 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:53:10,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:53:10,740 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:53:10,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:53:10,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:53:10,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:53:10,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:53:10,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:53:10,742 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:53:10,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:53:10,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:53:10,743 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:53:10,743 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:53:10,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:53:10,744 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d [2023-11-21 19:53:11,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:53:11,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:53:11,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:53:11,099 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:53:11,100 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:53:11,101 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-21 19:53:14,051 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:53:14,811 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:53:14,812 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-21 19:53:14,880 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5/data/75bd5b50c/90659bc01f954ed98379462f15ba5b22/FLAGd618b8b03 [2023-11-21 19:53:14,897 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5/data/75bd5b50c/90659bc01f954ed98379462f15ba5b22 [2023-11-21 19:53:14,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:53:14,906 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:53:14,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:53:14,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:53:14,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:53:14,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:53:14" (1/1) ... [2023-11-21 19:53:14,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4edde4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:14, skipping insertion in model container [2023-11-21 19:53:14,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:53:14" (1/1) ... [2023-11-21 19:53:15,070 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:53:17,943 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_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2023-11-21 19:53:17,948 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_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2023-11-21 19:53:17,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:53:18,022 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:53:18,221 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"); [5755] [2023-11-21 19:53:18,223 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)); [5762] [2023-11-21 19:53:18,224 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5769] [2023-11-21 19:53:18,226 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 *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5799-5800] [2023-11-21 19:53:18,226 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"); [5805-5807] [2023-11-21 19:53:18,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5876] [2023-11-21 19:53:18,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5884] [2023-11-21 19:53:18,579 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_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2023-11-21 19:53:18,580 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_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2023-11-21 19:53:18,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:53:18,758 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:53:18,767 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:53:18,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:18 WrapperNode [2023-11-21 19:53:18,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:53:18,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:53:18,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:53:18,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:53:18,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:18" (1/1) ... [2023-11-21 19:53:18,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:18" (1/1) ... [2023-11-21 19:53:19,269 INFO L138 Inliner]: procedures = 388, calls = 2186, calls flagged for inlining = 154, calls inlined = 135, statements flattened = 4881 [2023-11-21 19:53:19,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:53:19,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:53:19,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:53:19,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:53:19,282 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:18" (1/1) ... [2023-11-21 19:53:19,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:18" (1/1) ... [2023-11-21 19:53:19,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:18" (1/1) ... [2023-11-21 19:53:19,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:18" (1/1) ... [2023-11-21 19:53:19,469 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:18" (1/1) ... [2023-11-21 19:53:19,492 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:18" (1/1) ... [2023-11-21 19:53:19,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:18" (1/1) ... [2023-11-21 19:53:19,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:18" (1/1) ... [2023-11-21 19:53:19,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:53:19,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:53:19,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:53:19,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:53:19,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:18" (1/1) ... [2023-11-21 19:53:19,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:53:19,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:53:19,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:53:19,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dff62e0-fab0-42fc-889e-c3bbfad0e9e1/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:53:19,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2023-11-21 19:53:19,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2023-11-21 19:53:19,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 19:53:19,708 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 19:53:19,708 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2023-11-21 19:53:19,708 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2023-11-21 19:53:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2023-11-21 19:53:19,709 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2023-11-21 19:53:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-21 19:53:19,710 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-21 19:53:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 19:53:19,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 19:53:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-21 19:53:19,711 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-21 19:53:19,712 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2023-11-21 19:53:19,713 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2023-11-21 19:53:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2023-11-21 19:53:19,714 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2023-11-21 19:53:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2023-11-21 19:53:19,717 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2023-11-21 19:53:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2023-11-21 19:53:19,717 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2023-11-21 19:53:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-21 19:53:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-21 19:53:19,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-21 19:53:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2023-11-21 19:53:19,814 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2023-11-21 19:53:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2023-11-21 19:53:19,814 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2023-11-21 19:53:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-21 19:53:19,815 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-21 19:53:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 19:53:19,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 19:53:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:53:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2023-11-21 19:53:19,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2023-11-21 19:53:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2023-11-21 19:53:19,815 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2023-11-21 19:53:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-21 19:53:19,815 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-21 19:53:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2023-11-21 19:53:19,816 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2023-11-21 19:53:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 19:53:19,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 19:53:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2023-11-21 19:53:19,816 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2023-11-21 19:53:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2023-11-21 19:53:19,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2023-11-21 19:53:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 19:53:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2023-11-21 19:53:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2023-11-21 19:53:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2023-11-21 19:53:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2023-11-21 19:53:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2023-11-21 19:53:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2023-11-21 19:53:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 19:53:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-21 19:53:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-21 19:53:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2023-11-21 19:53:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2023-11-21 19:53:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:53:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 19:53:19,818 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 19:53:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2023-11-21 19:53:19,818 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2023-11-21 19:53:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-21 19:53:19,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-21 19:53:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-21 19:53:19,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-21 19:53:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-21 19:53:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-21 19:53:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2023-11-21 19:53:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2023-11-21 19:53:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2023-11-21 19:53:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2023-11-21 19:53:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2023-11-21 19:53:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2023-11-21 19:53:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2023-11-21 19:53:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2023-11-21 19:53:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:53:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-21 19:53:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-21 19:53:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2023-11-21 19:53:19,822 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2023-11-21 19:53:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:53:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 19:53:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 19:53:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 19:53:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 19:53:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:53:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 19:53:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 19:53:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 19:53:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 19:53:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2023-11-21 19:53:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2023-11-21 19:53:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-21 19:53:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-21 19:53:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-21 19:53:19,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-21 19:53:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-21 19:53:19,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-21 19:53:19,826 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-21 19:53:19,826 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-21 19:53:19,826 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2023-11-21 19:53:19,826 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2023-11-21 19:53:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2023-11-21 19:53:19,827 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2023-11-21 19:53:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-21 19:53:19,828 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-21 19:53:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-21 19:53:19,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-21 19:53:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2023-11-21 19:53:19,829 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2023-11-21 19:53:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:53:19,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:53:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2023-11-21 19:53:19,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2023-11-21 19:53:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 19:53:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 19:53:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 19:53:19,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 19:53:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2023-11-21 19:53:19,830 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2023-11-21 19:53:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-21 19:53:19,831 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-21 19:53:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2023-11-21 19:53:19,831 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2023-11-21 19:53:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2023-11-21 19:53:19,832 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2023-11-21 19:53:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 19:53:19,832 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 19:53:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2023-11-21 19:53:19,832 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2023-11-21 19:53:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2023-11-21 19:53:19,833 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2023-11-21 19:53:19,833 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-21 19:53:19,834 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-21 19:53:19,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:53:19,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:53:19,839 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2023-11-21 19:53:19,839 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2023-11-21 19:53:19,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:53:19,840 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 19:53:19,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 19:53:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-21 19:53:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-21 19:53:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-11-21 19:53:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-11-21 19:53:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-21 19:53:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-21 19:53:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-21 19:53:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-21 19:53:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-21 19:53:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-21 19:53:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-21 19:53:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-21 19:53:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 19:53:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 19:53:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2023-11-21 19:53:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2023-11-21 19:53:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-21 19:53:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-21 19:53:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-21 19:53:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-21 19:53:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-21 19:53:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-21 19:53:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-21 19:53:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-21 19:53:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-21 19:53:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-21 19:53:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:53:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2023-11-21 19:53:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2023-11-21 19:53:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2023-11-21 19:53:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2023-11-21 19:53:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-21 19:53:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-21 19:53:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 19:53:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 19:53:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2023-11-21 19:53:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2023-11-21 19:53:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2023-11-21 19:53:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2023-11-21 19:53:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2023-11-21 19:53:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2023-11-21 19:53:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-21 19:53:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-21 19:53:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2023-11-21 19:53:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2023-11-21 19:53:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2023-11-21 19:53:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2023-11-21 19:53:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2023-11-21 19:53:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2023-11-21 19:53:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-21 19:53:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-21 19:53:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:53:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-11-21 19:53:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-11-21 19:53:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-21 19:53:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-21 19:53:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2023-11-21 19:53:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2023-11-21 19:53:20,554 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:53:20,567 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:53:20,849 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 19:53:25,889 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-21 19:53:27,103 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:53:29,439 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:53:29,439 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:53:29,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:53:29 BoogieIcfgContainer [2023-11-21 19:53:29,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:53:29,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:53:29,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:53:29,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:53:29,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:53:14" (1/3) ... [2023-11-21 19:53:29,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4217ec11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:53:29, skipping insertion in model container [2023-11-21 19:53:29,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:53:18" (2/3) ... [2023-11-21 19:53:29,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4217ec11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:53:29, skipping insertion in model container [2023-11-21 19:53:29,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:53:29" (3/3) ... [2023-11-21 19:53:29,452 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-21 19:53:29,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:53:29,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:53:29,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:53:29,593 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ce2df04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:53:29,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:53:29,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 1739 states, 934 states have (on average 1.2494646680942185) internal successors, (1167), 957 states have internal predecessors, (1167), 712 states have call successors, (712), 93 states have call predecessors, (712), 92 states have return successors, (708), 697 states have call predecessors, (708), 708 states have call successors, (708) [2023-11-21 19:53:29,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-21 19:53:29,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:53:29,662 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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 19:53:29,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:53:29,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:53:29,671 INFO L85 PathProgramCache]: Analyzing trace with hash -91918994, now seen corresponding path program 1 times [2023-11-21 19:53:29,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:53:29,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280937428] [2023-11-21 19:53:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:53:29,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:53:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:53:30,587 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2023-11-21 19:53:30,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:53:30,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280937428] [2023-11-21 19:53:30,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280937428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:53:30,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:53:30,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:53:30,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250161678] [2023-11-21 19:53:30,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:53:30,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:53:30,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:53:30,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:53:30,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:53:30,631 INFO L87 Difference]: Start difference. First operand has 1739 states, 934 states have (on average 1.2494646680942185) internal successors, (1167), 957 states have internal predecessors, (1167), 712 states have call successors, (712), 93 states have call predecessors, (712), 92 states have return successors, (708), 697 states have call predecessors, (708), 708 states have call successors, (708) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-21 19:53:33,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:53:33,796 INFO L93 Difference]: Finished difference Result 4821 states and 7207 transitions. [2023-11-21 19:53:33,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:53:33,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 134 [2023-11-21 19:53:33,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:53:33,851 INFO L225 Difference]: With dead ends: 4821 [2023-11-21 19:53:33,852 INFO L226 Difference]: Without dead ends: 3028 [2023-11-21 19:53:33,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:53:33,879 INFO L413 NwaCegarLoop]: 2455 mSDtfsCounter, 2041 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 4786 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-21 19:53:33,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 4786 Invalid, 483 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-21 19:53:33,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2023-11-21 19:53:34,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 3024. [2023-11-21 19:53:34,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3024 states, 1626 states have (on average 1.2416974169741697) internal successors, (2019), 1670 states have internal predecessors, (2019), 1230 states have call successors, (1230), 168 states have call predecessors, (1230), 167 states have return successors, (1247), 1205 states have call predecessors, (1247), 1230 states have call successors, (1247) [2023-11-21 19:53:34,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3024 states to 3024 states and 4496 transitions. [2023-11-21 19:53:34,430 INFO L78 Accepts]: Start accepts. Automaton has 3024 states and 4496 transitions. Word has length 134 [2023-11-21 19:53:34,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:53:34,431 INFO L495 AbstractCegarLoop]: Abstraction has 3024 states and 4496 transitions. [2023-11-21 19:53:34,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-21 19:53:34,432 INFO L276 IsEmpty]: Start isEmpty. Operand 3024 states and 4496 transitions. [2023-11-21 19:53:34,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-21 19:53:34,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:53:34,454 INFO L195 NwaCegarLoop]: trace histogram [8, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 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, 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 19:53:34,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:53:34,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:53:34,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:53:34,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1114446955, now seen corresponding path program 1 times [2023-11-21 19:53:34,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:53:34,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628369241] [2023-11-21 19:53:34,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:53:34,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:53:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:53:35,079 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2023-11-21 19:53:35,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:53:35,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628369241] [2023-11-21 19:53:35,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628369241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:53:35,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:53:35,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:53:35,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638271681] [2023-11-21 19:53:35,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:53:35,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:53:35,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:53:35,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:53:35,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:53:35,084 INFO L87 Difference]: Start difference. First operand 3024 states and 4496 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-21 19:53:38,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:53:40,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:53:42,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:53:42,127 INFO L93 Difference]: Finished difference Result 8021 states and 11932 transitions. [2023-11-21 19:53:42,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:53:42,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 191 [2023-11-21 19:53:42,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:53:42,185 INFO L225 Difference]: With dead ends: 8021 [2023-11-21 19:53:42,186 INFO L226 Difference]: Without dead ends: 5008 [2023-11-21 19:53:42,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:53:42,217 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 1732 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 4668 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-21 19:53:42,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 4668 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 510 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2023-11-21 19:53:42,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5008 states. [2023-11-21 19:53:42,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5008 to 5004. [2023-11-21 19:53:42,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5004 states, 2676 states have (on average 1.2376681614349776) internal successors, (3312), 2740 states have internal predecessors, (3312), 2045 states have call successors, (2045), 283 states have call predecessors, (2045), 282 states have return successors, (2062), 2012 states have call predecessors, (2062), 2045 states have call successors, (2062) [2023-11-21 19:53:42,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5004 states to 5004 states and 7419 transitions. [2023-11-21 19:53:42,807 INFO L78 Accepts]: Start accepts. Automaton has 5004 states and 7419 transitions. Word has length 191 [2023-11-21 19:53:42,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:53:42,808 INFO L495 AbstractCegarLoop]: Abstraction has 5004 states and 7419 transitions. [2023-11-21 19:53:42,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-21 19:53:42,809 INFO L276 IsEmpty]: Start isEmpty. Operand 5004 states and 7419 transitions. [2023-11-21 19:53:42,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-11-21 19:53:42,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:53:42,835 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 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 19:53:42,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:53:42,836 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:53:42,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:53:42,846 INFO L85 PathProgramCache]: Analyzing trace with hash 951584548, now seen corresponding path program 1 times [2023-11-21 19:53:42,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:53:42,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373574587] [2023-11-21 19:53:42,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:53:42,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:53:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:53:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-11-21 19:53:43,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:53:43,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373574587] [2023-11-21 19:53:43,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373574587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:53:43,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:53:43,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:53:43,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512311485] [2023-11-21 19:53:43,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:53:43,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:53:43,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:53:43,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:53:43,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:53:43,438 INFO L87 Difference]: Start difference. First operand 5004 states and 7419 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-21 19:53:47,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:53:49,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:53:49,162 INFO L93 Difference]: Finished difference Result 11981 states and 17777 transitions. [2023-11-21 19:53:49,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:53:49,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 239 [2023-11-21 19:53:49,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:53:49,235 INFO L225 Difference]: With dead ends: 11981 [2023-11-21 19:53:49,235 INFO L226 Difference]: Without dead ends: 6988 [2023-11-21 19:53:49,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:53:49,276 INFO L413 NwaCegarLoop]: 3874 mSDtfsCounter, 1739 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1739 SdHoareTripleChecker+Valid, 6121 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-21 19:53:49,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1739 Valid, 6121 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 644 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2023-11-21 19:53:49,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6988 states. [2023-11-21 19:53:49,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6988 to 6984. [2023-11-21 19:53:49,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6984 states, 3725 states have (on average 1.2359731543624162) internal successors, (4604), 3809 states have internal predecessors, (4604), 2860 states have call successors, (2860), 399 states have call predecessors, (2860), 398 states have return successors, (2877), 2819 states have call predecessors, (2877), 2860 states have call successors, (2877) [2023-11-21 19:53:49,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6984 states to 6984 states and 10341 transitions. [2023-11-21 19:53:49,985 INFO L78 Accepts]: Start accepts. Automaton has 6984 states and 10341 transitions. Word has length 239 [2023-11-21 19:53:49,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:53:49,987 INFO L495 AbstractCegarLoop]: Abstraction has 6984 states and 10341 transitions. [2023-11-21 19:53:49,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-21 19:53:49,989 INFO L276 IsEmpty]: Start isEmpty. Operand 6984 states and 10341 transitions. [2023-11-21 19:53:50,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-11-21 19:53:50,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:53:50,026 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 19:53:50,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:53:50,027 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:53:50,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:53:50,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1476093834, now seen corresponding path program 1 times [2023-11-21 19:53:50,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:53:50,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210531507] [2023-11-21 19:53:50,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:53:50,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:53:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:53:51,244 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2023-11-21 19:53:51,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:53:51,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210531507] [2023-11-21 19:53:51,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210531507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:53:51,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:53:51,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:53:51,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990722443] [2023-11-21 19:53:51,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:53:51,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:53:51,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:53:51,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:53:51,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:53:51,248 INFO L87 Difference]: Start difference. First operand 6984 states and 10341 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-21 19:53:54,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:53:54,733 INFO L93 Difference]: Finished difference Result 16153 states and 23912 transitions. [2023-11-21 19:53:54,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:53:54,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 301 [2023-11-21 19:53:54,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:53:54,826 INFO L225 Difference]: With dead ends: 16153 [2023-11-21 19:53:54,827 INFO L226 Difference]: Without dead ends: 9180 [2023-11-21 19:53:54,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:53:54,881 INFO L413 NwaCegarLoop]: 3963 mSDtfsCounter, 2253 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2253 SdHoareTripleChecker+Valid, 5880 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-21 19:53:54,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2253 Valid, 5880 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-21 19:53:54,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9180 states. [2023-11-21 19:53:55,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9180 to 9176. [2023-11-21 19:53:55,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9176 states, 4894 states have (on average 1.2351859419697588) internal successors, (6045), 5003 states have internal predecessors, (6045), 3748 states have call successors, (3748), 535 states have call predecessors, (3748), 533 states have return successors, (3765), 3695 states have call predecessors, (3765), 3748 states have call successors, (3765) [2023-11-21 19:53:55,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 13558 transitions. [2023-11-21 19:53:55,754 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 13558 transitions. Word has length 301 [2023-11-21 19:53:55,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:53:55,756 INFO L495 AbstractCegarLoop]: Abstraction has 9176 states and 13558 transitions. [2023-11-21 19:53:55,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-21 19:53:55,758 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 13558 transitions. [2023-11-21 19:53:55,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-21 19:53:55,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:53:55,795 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 19:53:55,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 19:53:55,795 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:53:55,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:53:55,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2027169285, now seen corresponding path program 1 times [2023-11-21 19:53:55,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:53:55,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658684417] [2023-11-21 19:53:55,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:53:55,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms