./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire --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 27a3a7bacd5bfaa71ec936fdb60b09adb3a573df62752fe262468d392ed108c3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:37:08,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:37:09,118 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:37:09,130 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:37:09,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:37:09,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:37:09,163 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:37:09,164 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:37:09,165 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:37:09,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:37:09,173 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:37:09,173 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:37:09,174 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:37:09,176 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:37:09,177 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:37:09,177 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:37:09,177 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:37:09,178 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:37:09,179 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:37:09,179 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:37:09,180 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:37:09,180 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:37:09,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:37:09,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:37:09,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:37:09,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:37:09,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:37:09,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:37:09,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:37:09,185 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:37:09,186 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:37:09,186 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:37:09,187 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:37:09,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:37:09,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:09,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:37:09,188 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:37:09,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:37:09,188 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:37:09,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:37:09,189 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:37:09,189 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:37:09,189 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:37:09,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:37:09,190 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_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27a3a7bacd5bfaa71ec936fdb60b09adb3a573df62752fe262468d392ed108c3 [2023-11-23 20:37:09,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:37:09,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:37:09,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:37:09,605 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:37:09,606 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:37:09,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2023-11-23 20:37:12,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:37:13,711 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:37:13,712 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2023-11-23 20:37:13,789 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire/data/32ea89b2c/765a83d7e8d6457e9d4b35ff6eb87136/FLAGa4c546efa [2023-11-23 20:37:13,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire/data/32ea89b2c/765a83d7e8d6457e9d4b35ff6eb87136 [2023-11-23 20:37:13,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:37:13,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:37:13,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:13,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:37:13,838 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:37:13,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:13" (1/1) ... [2023-11-23 20:37:13,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e076b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:13, skipping insertion in model container [2023-11-23 20:37:13,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:13" (1/1) ... [2023-11-23 20:37:14,058 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:37:17,107 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_f8da2d32-d73a-409f-b050-997dcdb89486/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i[276778,276791] [2023-11-23 20:37:17,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:17,462 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:37:17,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [5752-5753] [2023-11-23 20:37:17,654 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5760] [2023-11-23 20:37:17,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5781] [2023-11-23 20:37:17,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5784] [2023-11-23 20:37:17,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5787] [2023-11-23 20:37:17,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5790] [2023-11-23 20:37:17,715 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/zakharov_benchmarks/bench/cpa/work/current--X--drivers/media/firewire/firedtv.ko--X--x1linux-3.8-rc1--X--32_7a--X--cpachecker/linux-3.8-rc1/csd_deg_dscv/17/dscv_tempdir/dscv/ri/32_7a/drivers/media/firewire/firedtv-avc.c.prepared"), "i" (659), "i" (12UL)); [6630-6631] [2023-11-23 20:37:17,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [8238] [2023-11-23 20:37:17,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr)); [8245] [2023-11-23 20:37:18,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9121] [2023-11-23 20:37:18,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9352] [2023-11-23 20:37:18,046 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"); [9748] [2023-11-23 20:37:18,066 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_f8da2d32-d73a-409f-b050-997dcdb89486/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i[276778,276791] [2023-11-23 20:37:18,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:18,297 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:18,297 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:18,307 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:37:18,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:18 WrapperNode [2023-11-23 20:37:18,309 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:18,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:18,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:37:18,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:37:18,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:18" (1/1) ... [2023-11-23 20:37:18,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:18" (1/1) ... [2023-11-23 20:37:18,727 INFO L138 Inliner]: procedures = 341, calls = 1955, calls flagged for inlining = 158, calls inlined = 154, statements flattened = 5557 [2023-11-23 20:37:18,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:18,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:37:18,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:37:18,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:37:18,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:18" (1/1) ... [2023-11-23 20:37:18,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:18" (1/1) ... [2023-11-23 20:37:18,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:18" (1/1) ... [2023-11-23 20:37:18,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:18" (1/1) ... [2023-11-23 20:37:19,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:18" (1/1) ... [2023-11-23 20:37:19,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:18" (1/1) ... [2023-11-23 20:37:19,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:18" (1/1) ... [2023-11-23 20:37:19,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:18" (1/1) ... [2023-11-23 20:37:19,284 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:37:19,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:37:19,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:37:19,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:37:19,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:18" (1/1) ... [2023-11-23 20:37:19,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:19,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:37:19,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:37:19,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8da2d32-d73a-409f-b050-997dcdb89486/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:37:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure queue_iso [2023-11-23 20:37:19,388 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_iso [2023-11-23 20:37:19,388 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-23 20:37:19,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-23 20:37:19,389 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_channel [2023-11-23 20:37:19,390 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_channel [2023-11-23 20:37:19,390 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_dvb_register [2023-11-23 20:37:19,390 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_dvb_register [2023-11-23 20:37:19,391 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_establish_pp_connection [2023-11-23 20:37:19,391 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_establish_pp_connection [2023-11-23 20:37:19,391 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 20:37:19,392 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 20:37:19,393 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-23 20:37:19,393 INFO L130 BoogieDeclarations]: Found specification of procedure node_req [2023-11-23 20:37:19,393 INFO L138 BoogieDeclarations]: Found implementation of procedure node_req [2023-11-23 20:37:19,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:37:19,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:37:19,396 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_lock [2023-11-23 20:37:19,396 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_lock [2023-11-23 20:37:19,397 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2023-11-23 20:37:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2023-11-23 20:37:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-11-23 20:37:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-11-23 20:37:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:37:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:37:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_read [2023-11-23 20:37:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_read [2023-11-23 20:37:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_demux_mutex_of_firedtv [2023-11-23 20:37:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_demux_mutex_of_firedtv [2023-11-23 20:37:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 20:37:19,400 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 20:37:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:37:19,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:37:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure pad_operands [2023-11-23 20:37:19,401 INFO L138 BoogieDeclarations]: Found implementation of procedure pad_operands [2023-11-23 20:37:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure avc_tuner_set_pids [2023-11-23 20:37:19,401 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_tuner_set_pids [2023-11-23 20:37:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_ca_io_poll [2023-11-23 20:37:19,402 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_ca_io_poll [2023-11-23 20:37:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2023-11-23 20:37:19,402 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2023-11-23 20:37:19,402 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_release [2023-11-23 20:37:19,402 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_release [2023-11-23 20:37:19,403 INFO L130 BoogieDeclarations]: Found specification of procedure clear_operands [2023-11-23 20:37:19,403 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_operands [2023-11-23 20:37:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 20:37:19,404 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 20:37:19,404 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_open [2023-11-23 20:37:19,405 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_open [2023-11-23 20:37:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:37:19,406 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-23 20:37:19,406 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-23 20:37:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure avc_write [2023-11-23 20:37:19,407 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_write [2023-11-23 20:37:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure get_opcr [2023-11-23 20:37:19,407 INFO L138 BoogieDeclarations]: Found implementation of procedure get_opcr [2023-11-23 20:37:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:37:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-23 20:37:19,408 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-23 20:37:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure collect_channels [2023-11-23 20:37:19,409 INFO L138 BoogieDeclarations]: Found implementation of procedure collect_channels [2023-11-23 20:37:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:37:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:37:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure fw_iso_context_destroy [2023-11-23 20:37:19,409 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_iso_context_destroy [2023-11-23 20:37:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_unregister_rc [2023-11-23 20:37:19,410 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_unregister_rc [2023-11-23 20:37:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:37:19,410 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:37:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure avc_tuner_status [2023-11-23 20:37:19,410 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_tuner_status [2023-11-23 20:37:19,411 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 20:37:19,412 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 20:37:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-23 20:37:19,412 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-23 20:37:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-23 20:37:19,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-23 20:37:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 20:37:19,413 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 20:37:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 20:37:19,413 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 20:37:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-23 20:37:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-23 20:37:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_avc_mutex_of_firedtv [2023-11-23 20:37:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_avc_mutex_of_firedtv [2023-11-23 20:37:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:37:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-23 20:37:19,415 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-23 20:37:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure node_remove [2023-11-23 20:37:19,415 INFO L138 BoogieDeclarations]: Found implementation of procedure node_remove [2023-11-23 20:37:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:37:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 20:37:19,416 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 20:37:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_dvb_unregister [2023-11-23 20:37:19,416 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_dvb_unregister [2023-11-23 20:37:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure add_pid_filter [2023-11-23 20:37:19,417 INFO L138 BoogieDeclarations]: Found implementation of procedure add_pid_filter [2023-11-23 20:37:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:37:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure is_register_rc [2023-11-23 20:37:19,419 INFO L138 BoogieDeclarations]: Found implementation of procedure is_register_rc [2023-11-23 20:37:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure dealloc_channel [2023-11-23 20:37:19,419 INFO L138 BoogieDeclarations]: Found implementation of procedure dealloc_channel [2023-11-23 20:37:19,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:37:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:37:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:37:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:37:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2023-11-23 20:37:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2023-11-23 20:37:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:37:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_avc_mutex_of_firedtv [2023-11-23 20:37:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_avc_mutex_of_firedtv [2023-11-23 20:37:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure debug_fcp [2023-11-23 20:37:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_fcp [2023-11-23 20:37:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-23 20:37:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-23 20:37:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-23 20:37:19,424 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-23 20:37:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:37:19,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:37:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_net_release [2023-11-23 20:37:19,424 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_net_release [2023-11-23 20:37:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:37:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:37:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:37:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 20:37:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure set_opcr [2023-11-23 20:37:19,426 INFO L138 BoogieDeclarations]: Found implementation of procedure set_opcr [2023-11-23 20:37:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-23 20:37:19,426 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-23 20:37:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:37:19,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:37:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure fw_iso_buffer_destroy [2023-11-23 20:37:19,428 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_iso_buffer_destroy [2023-11-23 20:37:19,429 INFO L130 BoogieDeclarations]: Found specification of procedure node_probe [2023-11-23 20:37:19,433 INFO L138 BoogieDeclarations]: Found implementation of procedure node_probe [2023-11-23 20:37:19,434 INFO L130 BoogieDeclarations]: Found specification of procedure get_ca_object_pos [2023-11-23 20:37:19,434 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ca_object_pos [2023-11-23 20:37:19,434 INFO L130 BoogieDeclarations]: Found specification of procedure node_update [2023-11-23 20:37:19,435 INFO L138 BoogieDeclarations]: Found implementation of procedure node_update [2023-11-23 20:37:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure avc_register_remote_control [2023-11-23 20:37:19,437 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_register_remote_control [2023-11-23 20:37:19,437 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2023-11-23 20:37:19,438 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2023-11-23 20:37:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 20:37:19,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 20:37:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure device_of [2023-11-23 20:37:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure device_of [2023-11-23 20:37:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demux_mutex_of_firedtv [2023-11-23 20:37:19,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demux_mutex_of_firedtv [2023-11-23 20:37:19,445 INFO L130 BoogieDeclarations]: Found specification of procedure fw_core_remove_address_handler [2023-11-23 20:37:19,445 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_core_remove_address_handler [2023-11-23 20:37:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:37:19,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:37:19,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:37:20,407 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:37:20,412 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:37:33,998 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:37:37,386 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:37:37,386 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:37:37,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:37 BoogieIcfgContainer [2023-11-23 20:37:37,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:37:37,393 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:37:37,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:37:37,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:37:37,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:37:13" (1/3) ... [2023-11-23 20:37:37,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322a3492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:37, skipping insertion in model container [2023-11-23 20:37:37,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:18" (2/3) ... [2023-11-23 20:37:37,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322a3492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:37, skipping insertion in model container [2023-11-23 20:37:37,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:37" (3/3) ... [2023-11-23 20:37:37,403 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2023-11-23 20:37:37,425 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:37:37,426 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:37:37,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:37:37,534 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;@31d9244d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:37:37,534 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:37:37,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 941 states, 592 states have (on average 1.3733108108108107) internal successors, (813), 615 states have internal predecessors, (813), 279 states have call successors, (279), 68 states have call predecessors, (279), 68 states have return successors, (279), 279 states have call predecessors, (279), 279 states have call successors, (279) [2023-11-23 20:37:37,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 20:37:37,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:37,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:37,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:37,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:37,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1287400627, now seen corresponding path program 1 times [2023-11-23 20:37:37,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:37,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231352402] [2023-11-23 20:37:37,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:37,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:37:38,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:38,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231352402] [2023-11-23 20:37:38,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231352402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:38,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:38,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:37:38,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124494050] [2023-11-23 20:37:38,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:38,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:38,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:38,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:38,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:37:38,454 INFO L87 Difference]: Start difference. First operand has 941 states, 592 states have (on average 1.3733108108108107) internal successors, (813), 615 states have internal predecessors, (813), 279 states have call successors, (279), 68 states have call predecessors, (279), 68 states have return successors, (279), 279 states have call predecessors, (279), 279 states have call successors, (279) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:37:42,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:37:44,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:37:46,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:37:49,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:37:50,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:37:54,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:37:56,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:37:58,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:00,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:02,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:04,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:06,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []