./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --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 c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:23:52,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:23:52,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:23:52,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:23:52,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:23:52,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:23:52,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:23:52,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:23:52,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:23:52,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:23:52,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:23:52,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:23:52,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:23:52,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:23:52,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:23:52,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:23:52,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:23:52,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:23:52,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:23:52,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:23:52,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:23:52,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:23:52,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:23:52,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:23:52,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:23:52,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:23:52,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:23:52,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:23:52,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:23:52,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:23:52,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:23:52,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:23:52,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:23:52,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:23:52,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:23:52,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:23:52,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:23:52,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:23:52,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:23:52,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:23:52,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:23:52,404 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:23:52,436 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:23:52,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:23:52,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:23:52,438 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:23:52,439 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:23:52,439 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:23:52,440 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:23:52,440 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:23:52,440 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:23:52,441 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:23:52,441 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:23:52,441 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:23:52,442 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:23:52,442 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:23:52,443 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:23:52,443 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:23:52,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:23:52,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:23:52,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:23:52,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:23:52,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:23:52,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:23:52,446 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:23:52,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:23:52,447 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:23:52,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:23:52,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:23:52,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:23:52,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:23:52,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:23:52,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:23:52,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:23:52,471 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:23:52,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:23:52,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:23:52,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:23:52,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:23:52,472 INFO L138 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_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f [2021-11-19 13:23:52,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:23:52,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:23:52,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:23:52,857 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:23:52,862 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:23:52,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-19 13:23:52,945 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/data/ce5b0a00c/f0d08709ec714a78bac59d55d7bbac3d/FLAG99e993e39 [2021-11-19 13:23:54,182 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:23:54,183 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-19 13:23:54,257 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/data/ce5b0a00c/f0d08709ec714a78bac59d55d7bbac3d/FLAG99e993e39 [2021-11-19 13:23:54,432 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/data/ce5b0a00c/f0d08709ec714a78bac59d55d7bbac3d [2021-11-19 13:23:54,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:23:54,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:23:54,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:23:54,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:23:54,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:23:54,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:23:54" (1/1) ... [2021-11-19 13:23:54,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59bd9944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:54, skipping insertion in model container [2021-11-19 13:23:54,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:23:54" (1/1) ... [2021-11-19 13:23:54,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:23:54,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:23:56,979 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:23:56,983 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:23:57,135 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:23:57,143 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:23:57,196 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:23:57,197 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:23:58,431 WARN L230 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_561c444b-784d-4b09-91d8-3b524136c06c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348277,348290] [2021-11-19 13:23:58,442 WARN L230 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_561c444b-784d-4b09-91d8-3b524136c06c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348422,348435] [2021-11-19 13:23:58,476 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:23:58,547 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:23:58,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6c8de0cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:23:58, skipping insertion in model container [2021-11-19 13:23:58,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:23:58,548 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:23:58,551 INFO L158 Benchmark]: Toolchain (without parser) took 4112.92ms. Allocated memory was 113.2MB in the beginning and 172.0MB in the end (delta: 58.7MB). Free memory was 57.2MB in the beginning and 111.7MB in the end (delta: -54.4MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2021-11-19 13:23:58,552 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 113.2MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:23:58,555 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4093.87ms. Allocated memory was 113.2MB in the beginning and 172.0MB in the end (delta: 58.7MB). Free memory was 57.0MB in the beginning and 111.7MB in the end (delta: -54.7MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2021-11-19 13:23:58,557 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 113.2MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4093.87ms. Allocated memory was 113.2MB in the beginning and 172.0MB in the end (delta: 58.7MB). Free memory was 57.0MB in the beginning and 111.7MB in the end (delta: -54.7MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7424]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --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 c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:24:01,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:24:01,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:24:01,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:24:01,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:24:01,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:24:01,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:24:01,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:24:01,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:24:01,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:24:01,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:24:01,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:24:01,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:24:01,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:24:01,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:24:01,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:24:01,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:24:01,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:24:01,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:24:01,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:24:01,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:24:01,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:24:01,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:24:01,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:24:01,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:24:01,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:24:01,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:24:01,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:24:01,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:24:01,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:24:01,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:24:01,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:24:01,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:24:01,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:24:01,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:24:01,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:24:01,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:24:01,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:24:01,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:24:01,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:24:01,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:24:01,659 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:24:01,716 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:24:01,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:24:01,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:24:01,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:24:01,719 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:24:01,719 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:24:01,719 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:24:01,720 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:24:01,720 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:24:01,720 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:24:01,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:24:01,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:24:01,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:24:01,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:24:01,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:24:01,725 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:24:01,726 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:24:01,726 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:24:01,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:24:01,727 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:24:01,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:24:01,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:24:01,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:24:01,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:24:01,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:24:01,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:24:01,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:24:01,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:24:01,729 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:24:01,730 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:24:01,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:24:01,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:24:01,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:24:01,731 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f [2021-11-19 13:24:02,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:24:02,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:24:02,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:24:02,265 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:24:02,265 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:24:02,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-19 13:24:02,353 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/data/96bc453f4/70aa8c8d209544fdb3ce9658ffbee788/FLAG5cbdd762a [2021-11-19 13:24:03,639 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:24:03,640 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-19 13:24:03,713 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/data/96bc453f4/70aa8c8d209544fdb3ce9658ffbee788/FLAG5cbdd762a [2021-11-19 13:24:03,903 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/data/96bc453f4/70aa8c8d209544fdb3ce9658ffbee788 [2021-11-19 13:24:03,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:24:03,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:24:03,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:24:03,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:24:03,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:24:03,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:24:03" (1/1) ... [2021-11-19 13:24:03,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24eda4e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:03, skipping insertion in model container [2021-11-19 13:24:03,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:24:03" (1/1) ... [2021-11-19 13:24:03,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:24:04,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:24:08,258 WARN L230 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_561c444b-784d-4b09-91d8-3b524136c06c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348277,348290] [2021-11-19 13:24:08,262 WARN L230 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_561c444b-784d-4b09-91d8-3b524136c06c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348422,348435] [2021-11-19 13:24:08,293 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:24:08,381 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:24:08,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:24:09,227 WARN L230 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_561c444b-784d-4b09-91d8-3b524136c06c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348277,348290] [2021-11-19 13:24:09,227 WARN L230 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_561c444b-784d-4b09-91d8-3b524136c06c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348422,348435] [2021-11-19 13:24:09,234 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:24:09,277 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:24:09,898 WARN L230 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_561c444b-784d-4b09-91d8-3b524136c06c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348277,348290] [2021-11-19 13:24:09,899 WARN L230 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_561c444b-784d-4b09-91d8-3b524136c06c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348422,348435] [2021-11-19 13:24:09,904 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:24:10,172 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:24:10,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:10 WrapperNode [2021-11-19 13:24:10,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:24:10,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:24:10,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:24:10,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:24:10,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:10" (1/1) ... [2021-11-19 13:24:10,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:10" (1/1) ... [2021-11-19 13:24:10,673 INFO L137 Inliner]: procedures = 458, calls = 2166, calls flagged for inlining = 215, calls inlined = 200, statements flattened = 4844 [2021-11-19 13:24:10,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:24:10,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:24:10,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:24:10,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:24:10,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:10" (1/1) ... [2021-11-19 13:24:10,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:10" (1/1) ... [2021-11-19 13:24:10,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:10" (1/1) ... [2021-11-19 13:24:10,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:10" (1/1) ... [2021-11-19 13:24:11,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:10" (1/1) ... [2021-11-19 13:24:11,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:10" (1/1) ... [2021-11-19 13:24:11,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:10" (1/1) ... [2021-11-19 13:24:11,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:24:11,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:24:11,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:24:11,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:24:11,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:10" (1/1) ... [2021-11-19 13:24:11,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:24:11,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:24:11,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:24:11,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:24:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-19 13:24:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure BB_GET_BIT2 [2021-11-19 13:24:11,216 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_GET_BIT2 [2021-11-19 13:24:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-19 13:24:11,216 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-19 13:24:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 13:24:11,216 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 13:24:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 13:24:11,216 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 13:24:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_open [2021-11-19 13:24:11,216 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_open [2021-11-19 13:24:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_poll_stop [2021-11-19 13:24:11,217 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_poll_stop [2021-11-19 13:24:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure is_quattro_p [2021-11-19 13:24:11,217 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quattro_p [2021-11-19 13:24:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 13:24:11,217 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 13:24:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_close [2021-11-19 13:24:11,217 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_close [2021-11-19 13:24:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:24:11,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:24:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 13:24:11,218 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 13:24:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_87 [2021-11-19 13:24:11,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_87 [2021-11-19 13:24:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_set_multicast [2021-11-19 13:24:11,219 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_set_multicast [2021-11-19 13:24:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 13:24:11,219 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 13:24:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure BB_PUT_BIT [2021-11-19 13:24:11,220 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_PUT_BIT [2021-11-19 13:24:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-19 13:24:11,220 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-19 13:24:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_begin_auto_negotiation [2021-11-19 13:24:11,220 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_begin_auto_negotiation [2021-11-19 13:24:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_get_counters [2021-11-19 13:24:11,221 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_get_counters [2021-11-19 13:24:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 13:24:11,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 13:24:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_happy_lock_of_happy_meal [2021-11-19 13:24:11,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_happy_lock_of_happy_meal [2021-11-19 13:24:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:24:11,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:24:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 13:24:11,223 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 13:24:11,223 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-19 13:24:11,223 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-19 13:24:11,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2021-11-19 13:24:11,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2021-11-19 13:24:11,224 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 13:24:11,224 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 13:24:11,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:24:11,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:24:11,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:24:11,225 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-19 13:24:11,225 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-19 13:24:11,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2021-11-19 13:24:11,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2021-11-19 13:24:11,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:24:11,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:24:11,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:24:11,226 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 13:24:11,227 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 13:24:11,227 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 13:24:11,227 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 13:24:11,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:24:11,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:24:11,228 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 13:24:11,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-19 13:24:11,228 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 13:24:11,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 13:24:11,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 13:24:11,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 13:24:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 13:24:11,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 13:24:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 13:24:11,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 13:24:11,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:24:11,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:24:11,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 13:24:11,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 13:24:11,231 INFO L130 BoogieDeclarations]: Found specification of procedure set_happy_link_modes [2021-11-19 13:24:11,231 INFO L138 BoogieDeclarations]: Found implementation of procedure set_happy_link_modes [2021-11-19 13:24:11,231 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_reset [2021-11-19 13:24:11,231 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_reset [2021-11-19 13:24:11,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:24:11,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-19 13:24:11,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-19 13:24:11,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 13:24:11,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 13:24:11,232 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tx_timeout [2021-11-19 13:24:11,233 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tx_timeout [2021-11-19 13:24:11,233 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-19 13:24:11,233 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-19 13:24:11,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:24:11,233 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_read [2021-11-19 13:24:11,234 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_read [2021-11-19 13:24:11,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:24:11,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:24:11,234 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 13:24:11,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 13:24:11,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:24:11,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:24:11,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:24:11,235 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:24:11,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:24:11,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:24:11,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-19 13:24:11,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-19 13:24:11,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-19 13:24:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-19 13:24:11,237 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 13:24:11,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2021-11-19 13:24:11,237 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-19 13:24:11,238 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-19 13:24:11,238 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 13:24:11,238 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 13:24:11,238 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 13:24:11,238 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 13:24:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 13:24:11,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 13:24:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 13:24:11,239 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 13:24:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:24:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure is_lucent_phy [2021-11-19 13:24:11,240 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lucent_phy [2021-11-19 13:24:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:24:11,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:24:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure hme_read_desc32 [2021-11-19 13:24:11,241 INFO L138 BoogieDeclarations]: Found implementation of procedure hme_read_desc32 [2021-11-19 13:24:11,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:24:11,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-19 13:24:11,241 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-19 13:24:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:24:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:24:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:24:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_clean_rings [2021-11-19 13:24:11,242 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_clean_rings [2021-11-19 13:24:11,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:24:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:24:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:24:11,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:24:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-19 13:24:11,243 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-19 13:24:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 13:24:11,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 13:24:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2021-11-19 13:24:11,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2021-11-19 13:24:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:24:11,245 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:24:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 13:24:11,245 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 13:24:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-19 13:24:11,245 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-19 13:24:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-19 13:24:11,246 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-19 13:24:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-19 13:24:11,246 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-19 13:24:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:24:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:24:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-19 13:24:11,247 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-19 13:24:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:24:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:24:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:24:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_86 [2021-11-19 13:24:11,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_86 [2021-11-19 13:24:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:24:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:24:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 13:24:11,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2021-11-19 13:24:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_stop [2021-11-19 13:24:11,249 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_stop [2021-11-19 13:24:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 13:24:11,250 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 13:24:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:24:11,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:24:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 13:24:11,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 13:24:11,251 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_pci_remove [2021-11-19 13:24:11,251 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_pci_remove [2021-11-19 13:24:11,251 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_init [2021-11-19 13:24:11,251 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_init [2021-11-19 13:24:11,251 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-19 13:24:11,252 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-19 13:24:11,252 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 13:24:11,252 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 13:24:11,252 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_write [2021-11-19 13:24:11,252 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_write [2021-11-19 13:24:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:24:11,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 13:24:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:24:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:24:11,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:24:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:24:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:24:11,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:24:11,254 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-19 13:24:11,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-19 13:24:11,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:24:11,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:24:11,255 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2021-11-19 13:24:11,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2021-11-19 13:24:11,255 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 13:24:11,256 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 13:24:11,256 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-19 13:24:11,256 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-19 13:24:11,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 13:24:11,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 13:24:11,257 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-19 13:24:11,257 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-19 13:24:11,257 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_transceiver_check [2021-11-19 13:24:11,257 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_transceiver_check [2021-11-19 13:24:12,352 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:24:12,361 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:24:16,833 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:24:46,895 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 13:24:48,440 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:24:48,467 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:24:48,467 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 13:24:48,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:24:48 BoogieIcfgContainer [2021-11-19 13:24:48,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:24:48,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:24:48,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:24:48,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:24:48,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:24:03" (1/3) ... [2021-11-19 13:24:48,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0235b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:24:48, skipping insertion in model container [2021-11-19 13:24:48,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:10" (2/3) ... [2021-11-19 13:24:48,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0235b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:24:48, skipping insertion in model container [2021-11-19 13:24:48,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:24:48" (3/3) ... [2021-11-19 13:24:48,486 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-19 13:24:48,494 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:24:48,494 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:24:48,617 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:24:48,626 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:24:48,626 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:24:48,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 2004 states, 1348 states have (on average 1.3048961424332344) internal successors, (1759), 1386 states have internal predecessors, (1759), 565 states have call successors, (565), 91 states have call predecessors, (565), 90 states have return successors, (559), 545 states have call predecessors, (559), 559 states have call successors, (559) [2021-11-19 13:24:48,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-19 13:24:48,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:48,789 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 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] [2021-11-19 13:24:48,790 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:24:48,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:48,797 INFO L85 PathProgramCache]: Analyzing trace with hash -539902053, now seen corresponding path program 1 times [2021-11-19 13:24:48,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:48,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382895053] [2021-11-19 13:24:48,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:48,821 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:48,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:48,834 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:48,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:24:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:50,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:24:50,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:51,479 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2021-11-19 13:24:51,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:52,208 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-11-19 13:24:52,209 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:52,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382895053] [2021-11-19 13:24:52,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1382895053] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:52,211 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:52,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:24:52,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633805296] [2021-11-19 13:24:52,215 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:52,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:24:52,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:52,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:24:52,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:24:52,269 INFO L87 Difference]: Start difference. First operand has 2004 states, 1348 states have (on average 1.3048961424332344) internal successors, (1759), 1386 states have internal predecessors, (1759), 565 states have call successors, (565), 91 states have call predecessors, (565), 90 states have return successors, (559), 545 states have call predecessors, (559), 559 states have call successors, (559) Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-19 13:24:54,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:25:05,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:25:05,362 INFO L93 Difference]: Finished difference Result 7525 states and 10932 transitions. [2021-11-19 13:25:05,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:25:05,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 170 [2021-11-19 13:25:05,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:25:05,465 INFO L225 Difference]: With dead ends: 7525 [2021-11-19 13:25:05,465 INFO L226 Difference]: Without dead ends: 5409 [2021-11-19 13:25:05,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:25:05,503 INFO L933 BasicCegarLoop]: 4229 mSDtfsCounter, 6612 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 1042 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6612 SdHoareTripleChecker+Valid, 8576 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1042 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:25:05,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6612 Valid, 8576 Invalid, 2099 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1042 Valid, 1056 Invalid, 1 Unknown, 0 Unchecked, 12.2s Time] [2021-11-19 13:25:05,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5409 states. [2021-11-19 13:25:06,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5409 to 5401. [2021-11-19 13:25:06,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5401 states, 3637 states have (on average 1.2941985152598294) internal successors, (4707), 3750 states have internal predecessors, (4707), 1503 states have call successors, (1503), 262 states have call predecessors, (1503), 260 states have return successors, (1529), 1453 states have call predecessors, (1529), 1503 states have call successors, (1529) [2021-11-19 13:25:06,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 7739 transitions. [2021-11-19 13:25:06,263 INFO L78 Accepts]: Start accepts. Automaton has 5401 states and 7739 transitions. Word has length 170 [2021-11-19 13:25:06,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:25:06,269 INFO L470 AbstractCegarLoop]: Abstraction has 5401 states and 7739 transitions. [2021-11-19 13:25:06,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-19 13:25:06,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5401 states and 7739 transitions. [2021-11-19 13:25:06,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-19 13:25:06,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:25:06,288 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:25:06,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:25:06,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:25:06,511 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:25:06,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:25:06,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1205301942, now seen corresponding path program 1 times [2021-11-19 13:25:06,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:25:06,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742741124] [2021-11-19 13:25:06,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:25:06,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:25:06,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:25:06,518 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:25:06,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:25:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:25:08,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:25:08,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:25:09,001 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-11-19 13:25:09,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:25:09,676 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 13:25:09,676 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:25:09,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742741124] [2021-11-19 13:25:09,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1742741124] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:25:09,677 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:25:09,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:25:09,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578415716] [2021-11-19 13:25:09,678 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:25:09,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:25:09,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:25:09,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:25:09,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:25:09,682 INFO L87 Difference]: Start difference. First operand 5401 states and 7739 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 13:25:11,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:25:21,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:25:21,815 INFO L93 Difference]: Finished difference Result 18698 states and 26787 transitions. [2021-11-19 13:25:21,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:25:21,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 157 [2021-11-19 13:25:21,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:25:22,002 INFO L225 Difference]: With dead ends: 18698 [2021-11-19 13:25:22,002 INFO L226 Difference]: Without dead ends: 13318 [2021-11-19 13:25:22,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:25:22,204 INFO L933 BasicCegarLoop]: 3835 mSDtfsCounter, 5411 mSDsluCounter, 3884 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 819 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5411 SdHoareTripleChecker+Valid, 7719 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:25:22,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5411 Valid, 7719 Invalid, 1870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [819 Valid, 1050 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2021-11-19 13:25:22,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13318 states. [2021-11-19 13:25:23,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13318 to 13308. [2021-11-19 13:25:23,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13308 states, 8836 states have (on average 1.2906292440018108) internal successors, (11404), 9119 states have internal predecessors, (11404), 3794 states have call successors, (3794), 681 states have call predecessors, (3794), 677 states have return successors, (3820), 3678 states have call predecessors, (3820), 3794 states have call successors, (3820) [2021-11-19 13:25:23,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13308 states to 13308 states and 19018 transitions. [2021-11-19 13:25:23,493 INFO L78 Accepts]: Start accepts. Automaton has 13308 states and 19018 transitions. Word has length 157 [2021-11-19 13:25:23,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:25:23,496 INFO L470 AbstractCegarLoop]: Abstraction has 13308 states and 19018 transitions. [2021-11-19 13:25:23,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-19 13:25:23,497 INFO L276 IsEmpty]: Start isEmpty. Operand 13308 states and 19018 transitions. [2021-11-19 13:25:23,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-19 13:25:23,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:25:23,516 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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] [2021-11-19 13:25:23,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 13:25:23,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:25:23,743 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:25:23,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:25:23,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1051261095, now seen corresponding path program 1 times [2021-11-19 13:25:23,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:25:23,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546138948] [2021-11-19 13:25:23,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:25:23,747 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:25:23,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:25:23,748 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:25:23,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:25:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:25:25,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 1524 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:25:25,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:25:26,198 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2021-11-19 13:25:26,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:25:26,936 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2021-11-19 13:25:26,937 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:25:26,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546138948] [2021-11-19 13:25:26,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546138948] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:25:26,938 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:25:26,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:25:26,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630190173] [2021-11-19 13:25:26,939 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:25:26,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:25:26,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:25:26,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:25:26,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:25:26,943 INFO L87 Difference]: Start difference. First operand 13308 states and 19018 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) [2021-11-19 13:25:29,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:25:36,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:25:36,460 INFO L93 Difference]: Finished difference Result 43383 states and 61329 transitions. [2021-11-19 13:25:36,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:25:36,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) Word has length 223 [2021-11-19 13:25:36,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:25:36,743 INFO L225 Difference]: With dead ends: 43383 [2021-11-19 13:25:36,743 INFO L226 Difference]: Without dead ends: 30096 [2021-11-19 13:25:36,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:25:36,874 INFO L933 BasicCegarLoop]: 3712 mSDtfsCounter, 6247 mSDsluCounter, 3664 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1017 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6247 SdHoareTripleChecker+Valid, 7376 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1017 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:25:36,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6247 Valid, 7376 Invalid, 1794 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1017 Valid, 776 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-19 13:25:36,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30096 states. [2021-11-19 13:25:39,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30096 to 30011. [2021-11-19 13:25:39,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30011 states, 20225 states have (on average 1.2793077873918417) internal successors, (25874), 20843 states have internal predecessors, (25874), 8116 states have call successors, (8116), 1739 states have call predecessors, (8116), 1669 states have return successors, (8240), 7749 states have call predecessors, (8240), 8116 states have call successors, (8240) [2021-11-19 13:25:39,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30011 states to 30011 states and 42230 transitions. [2021-11-19 13:25:39,419 INFO L78 Accepts]: Start accepts. Automaton has 30011 states and 42230 transitions. Word has length 223 [2021-11-19 13:25:39,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:25:39,420 INFO L470 AbstractCegarLoop]: Abstraction has 30011 states and 42230 transitions. [2021-11-19 13:25:39,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (45), 4 states have call predecessors, (45), 4 states have call successors, (45) [2021-11-19 13:25:39,421 INFO L276 IsEmpty]: Start isEmpty. Operand 30011 states and 42230 transitions. [2021-11-19 13:25:39,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-19 13:25:39,444 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:25:39,445 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:25:39,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:25:39,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:25:39,667 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:25:39,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:25:39,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1207436000, now seen corresponding path program 1 times [2021-11-19 13:25:39,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:25:39,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940553315] [2021-11-19 13:25:39,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:25:39,670 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:25:39,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:25:39,672 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:25:39,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:25:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:25:41,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 1496 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:25:41,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:25:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-19 13:25:42,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:25:42,841 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2021-11-19 13:25:42,842 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:25:42,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940553315] [2021-11-19 13:25:42,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940553315] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:25:42,842 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:25:42,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:25:42,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994640420] [2021-11-19 13:25:42,843 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:25:42,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:25:42,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:25:42,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:25:42,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:25:42,846 INFO L87 Difference]: Start difference. First operand 30011 states and 42230 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-19 13:25:45,011 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:25:48,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:25:48,257 INFO L93 Difference]: Finished difference Result 81487 states and 114862 transitions. [2021-11-19 13:25:48,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:25:48,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 226 [2021-11-19 13:25:48,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:25:48,671 INFO L225 Difference]: With dead ends: 81487 [2021-11-19 13:25:48,671 INFO L226 Difference]: Without dead ends: 51508 [2021-11-19 13:25:48,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:25:48,832 INFO L933 BasicCegarLoop]: 3344 mSDtfsCounter, 2427 mSDsluCounter, 2704 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 6048 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:25:48,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2427 Valid, 6048 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 13:25:48,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51508 states. [2021-11-19 13:25:52,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51508 to 51494. [2021-11-19 13:25:52,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51494 states, 34665 states have (on average 1.2850713976633492) internal successors, (44547), 35771 states have internal predecessors, (44547), 13862 states have call successors, (13862), 3089 states have call predecessors, (13862), 2966 states have return successors, (14119), 13187 states have call predecessors, (14119), 13862 states have call successors, (14119) [2021-11-19 13:25:53,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51494 states to 51494 states and 72528 transitions. [2021-11-19 13:25:53,295 INFO L78 Accepts]: Start accepts. Automaton has 51494 states and 72528 transitions. Word has length 226 [2021-11-19 13:25:53,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:25:53,298 INFO L470 AbstractCegarLoop]: Abstraction has 51494 states and 72528 transitions. [2021-11-19 13:25:53,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-19 13:25:53,298 INFO L276 IsEmpty]: Start isEmpty. Operand 51494 states and 72528 transitions. [2021-11-19 13:25:53,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-11-19 13:25:53,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:25:53,326 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 13:25:53,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-19 13:25:53,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:25:53,550 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:25:53,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:25:53,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1524166534, now seen corresponding path program 1 times [2021-11-19 13:25:53,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:25:53,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209349478] [2021-11-19 13:25:53,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:25:53,555 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:25:53,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:25:53,562 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:25:53,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:25:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:25:55,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 1561 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:25:55,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:25:56,164 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-11-19 13:25:56,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:25:56,988 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-11-19 13:25:56,988 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:25:56,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209349478] [2021-11-19 13:25:56,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209349478] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:25:56,989 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:25:56,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:25:56,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238853267] [2021-11-19 13:25:56,989 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:25:56,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:25:56,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:25:56,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:25:56,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:25:56,992 INFO L87 Difference]: Start difference. First operand 51494 states and 72528 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2021-11-19 13:25:59,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:26:13,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:26:13,278 INFO L93 Difference]: Finished difference Result 205016 states and 288954 transitions. [2021-11-19 13:26:13,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:26:13,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 246 [2021-11-19 13:26:13,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:26:14,762 INFO L225 Difference]: With dead ends: 205016 [2021-11-19 13:26:14,762 INFO L226 Difference]: Without dead ends: 153554 [2021-11-19 13:26:15,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:26:15,085 INFO L933 BasicCegarLoop]: 4546 mSDtfsCounter, 6719 mSDsluCounter, 4456 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 846 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6719 SdHoareTripleChecker+Valid, 9002 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:26:15,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6719 Valid, 9002 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 1087 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2021-11-19 13:26:15,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153554 states. [2021-11-19 13:26:24,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153554 to 153334. [2021-11-19 13:26:24,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153334 states, 102983 states have (on average 1.2852315430702155) internal successors, (132357), 106445 states have internal predecessors, (132357), 41454 states have call successors, (41454), 9265 states have call predecessors, (41454), 8896 states have return successors, (42225), 39285 states have call predecessors, (42225), 41454 states have call successors, (42225) [2021-11-19 13:26:26,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153334 states to 153334 states and 216036 transitions. [2021-11-19 13:26:26,291 INFO L78 Accepts]: Start accepts. Automaton has 153334 states and 216036 transitions. Word has length 246 [2021-11-19 13:26:26,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:26:26,292 INFO L470 AbstractCegarLoop]: Abstraction has 153334 states and 216036 transitions. [2021-11-19 13:26:26,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 4 states have call successors, (52), 3 states have call predecessors, (52), 3 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2021-11-19 13:26:26,293 INFO L276 IsEmpty]: Start isEmpty. Operand 153334 states and 216036 transitions. [2021-11-19 13:26:26,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-19 13:26:26,336 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:26:26,336 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 5, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:26:26,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:26:26,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:26:26,551 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:26:26,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:26:26,551 INFO L85 PathProgramCache]: Analyzing trace with hash 146357269, now seen corresponding path program 1 times [2021-11-19 13:26:26,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:26:26,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030532708] [2021-11-19 13:26:26,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:26:26,555 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:26:26,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:26:26,557 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:26:26,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561c444b-784d-4b09-91d8-3b524136c06c/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:26:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:26:28,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:26:28,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:26:28,924 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2021-11-19 13:26:28,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:26:29,673 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2021-11-19 13:26:29,674 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:26:29,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030532708] [2021-11-19 13:26:29,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030532708] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:26:29,674 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:26:29,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:26:29,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747575437] [2021-11-19 13:26:29,675 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:26:29,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:26:29,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:26:29,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:26:29,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:26:29,677 INFO L87 Difference]: Start difference. First operand 153334 states and 216036 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2021-11-19 13:26:31,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:26:51,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:26:51,555 INFO L93 Difference]: Finished difference Result 396958 states and 558908 transitions. [2021-11-19 13:26:51,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:26:51,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 4 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 242 [2021-11-19 13:26:51,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:26:53,684 INFO L225 Difference]: With dead ends: 396958 [2021-11-19 13:26:53,684 INFO L226 Difference]: Without dead ends: 243656 [2021-11-19 13:26:54,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:26:54,314 INFO L933 BasicCegarLoop]: 5193 mSDtfsCounter, 4767 mSDsluCounter, 3685 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 446 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4767 SdHoareTripleChecker+Valid, 8878 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:26:54,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4767 Valid, 8878 Invalid, 1609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 1162 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2021-11-19 13:26:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243656 states.