./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8 --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 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:54:01,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:54:01,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:54:01,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:54:01,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:54:01,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:54:01,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:54:01,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:54:01,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:54:01,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:54:01,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:54:01,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:54:01,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:54:01,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:54:01,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:54:01,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:54:01,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:54:01,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:54:01,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:54:01,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:54:01,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:54:01,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:54:01,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:54:01,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:54:01,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:54:01,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:54:01,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:54:01,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:54:01,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:54:01,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:54:01,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:54:01,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:54:01,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:54:01,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:54:01,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:54:01,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:54:01,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:54:01,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:54:01,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:54:01,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:54:01,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:54:01,366 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 00:54:01,391 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:54:01,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:54:01,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:54:01,393 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:54:01,393 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:54:01,393 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:54:01,394 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:54:01,394 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:54:01,394 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:54:01,394 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:54:01,395 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:54:01,395 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:54:01,395 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:54:01,395 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:54:01,396 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:54:01,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:54:01,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:54:01,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:54:01,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:54:01,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:54:01,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:54:01,398 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:54:01,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:54:01,398 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:54:01,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:54:01,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:54:01,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:54:01,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:54:01,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:54:01,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:54:01,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:54:01,400 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:54:01,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:54:01,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:54:01,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:54:01,401 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:54:01,402 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2021-11-07 00:54:01,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:54:01,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:54:01,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:54:01,676 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:54:01,677 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:54:01,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-07 00:54:01,734 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/data/36a68c6da/76f0b26ba28c4c959fa984a8e1aaa8da/FLAG4b528dcf2 [2021-11-07 00:54:02,730 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:54:02,731 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-07 00:54:02,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/data/36a68c6da/76f0b26ba28c4c959fa984a8e1aaa8da/FLAG4b528dcf2 [2021-11-07 00:54:03,105 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/data/36a68c6da/76f0b26ba28c4c959fa984a8e1aaa8da [2021-11-07 00:54:03,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:54:03,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:54:03,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:03,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:54:03,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:54:03,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:03" (1/1) ... [2021-11-07 00:54:03,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc1ffe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:03, skipping insertion in model container [2021-11-07 00:54:03,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:03" (1/1) ... [2021-11-07 00:54:03,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:54:03,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:54:06,433 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-07 00:54:06,436 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-07 00:54:06,436 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-07 00:54:06,437 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-07 00:54:06,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:06,486 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) [2021-11-07 00:54:06,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@382551d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:06, skipping insertion in model container [2021-11-07 00:54:06,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:06,487 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:54:06,489 INFO L168 Benchmark]: Toolchain (without parser) took 3380.06 ms. Allocated memory is still 127.9 MB. Free memory was 97.6 MB in the beginning and 73.0 MB in the end (delta: 24.6 MB). Peak memory consumption was 53.9 MB. Max. memory is 16.1 GB. [2021-11-07 00:54:06,490 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 90.2 MB. Free memory is still 69.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:54:06,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3377.61 ms. Allocated memory is still 127.9 MB. Free memory was 97.6 MB in the beginning and 73.0 MB in the end (delta: 24.6 MB). Peak memory consumption was 53.9 MB. Max. memory is 16.1 GB. [2021-11-07 00:54:06,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 90.2 MB. Free memory is still 69.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3377.61 ms. Allocated memory is still 127.9 MB. Free memory was 97.6 MB in the beginning and 73.0 MB in the end (delta: 24.6 MB). Peak memory consumption was 53.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6949]: 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8 --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 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:54:08,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:54:08,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:54:08,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:54:08,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:54:08,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:54:08,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:54:08,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:54:08,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:54:08,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:54:08,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:54:08,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:54:08,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:54:08,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:54:08,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:54:08,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:54:08,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:54:08,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:54:08,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:54:08,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:54:08,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:54:08,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:54:08,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:54:08,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:54:08,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:54:08,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:54:08,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:54:08,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:54:08,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:54:08,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:54:08,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:54:08,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:54:08,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:54:08,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:54:08,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:54:08,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:54:08,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:54:08,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:54:08,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:54:08,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:54:08,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:54:08,901 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 00:54:08,927 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:54:08,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:54:08,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:54:08,931 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:54:08,931 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:54:08,932 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:54:08,932 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:54:08,932 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:54:08,932 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:54:08,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:54:08,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:54:08,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:54:08,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:54:08,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:54:08,936 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:54:08,936 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:54:08,936 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:54:08,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:54:08,937 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:54:08,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:54:08,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:54:08,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:54:08,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:54:08,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:54:08,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:54:08,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:54:08,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:54:08,939 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:54:08,939 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:54:08,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:54:08,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:54:08,940 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:54:08,940 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2021-11-07 00:54:09,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:54:09,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:54:09,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:54:09,334 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:54:09,334 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:54:09,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-07 00:54:09,418 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/data/1cbb4e869/6002078351254fe8b4ab4f239a7465b5/FLAG484d1e6d3 [2021-11-07 00:54:10,519 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:54:10,521 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-07 00:54:10,599 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/data/1cbb4e869/6002078351254fe8b4ab4f239a7465b5/FLAG484d1e6d3 [2021-11-07 00:54:10,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/data/1cbb4e869/6002078351254fe8b4ab4f239a7465b5 [2021-11-07 00:54:10,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:54:10,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:54:10,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:10,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:54:10,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:54:10,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:10" (1/1) ... [2021-11-07 00:54:10,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ff107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:10, skipping insertion in model container [2021-11-07 00:54:10,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:10" (1/1) ... [2021-11-07 00:54:10,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:54:11,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:54:14,122 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-07 00:54:14,126 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-07 00:54:14,127 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-07 00:54:14,132 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-07 00:54:14,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:14,246 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:54:14,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:54:14,763 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-07 00:54:14,764 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-07 00:54:14,765 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-07 00:54:14,765 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-07 00:54:14,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:14,810 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:54:15,178 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2021-11-07 00:54:15,178 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2021-11-07 00:54:15,179 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2021-11-07 00:54:15,180 WARN L228 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_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2021-11-07 00:54:15,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:15,382 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:54:15,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:15 WrapperNode [2021-11-07 00:54:15,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:15,384 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:54:15,384 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:54:15,384 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:54:15,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:15" (1/1) ... [2021-11-07 00:54:15,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:15" (1/1) ... [2021-11-07 00:54:16,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:54:16,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:54:16,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:54:16,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:54:16,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:15" (1/1) ... [2021-11-07 00:54:16,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:15" (1/1) ... [2021-11-07 00:54:16,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:15" (1/1) ... [2021-11-07 00:54:16,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:15" (1/1) ... [2021-11-07 00:54:16,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:15" (1/1) ... [2021-11-07 00:54:17,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:15" (1/1) ... [2021-11-07 00:54:17,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:15" (1/1) ... [2021-11-07 00:54:17,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:54:17,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:54:17,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:54:17,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:54:17,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:15" (1/1) ... [2021-11-07 00:54:17,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:54:17,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:17,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:54:17,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:54:17,517 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 00:54:17,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:54:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:54:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 00:54:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 00:54:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:54:17,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:54:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 00:54:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 00:54:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 00:54:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 00:54:17,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:54:17,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:54:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 00:54:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 00:54:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:54:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 00:54:17,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 00:54:17,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 00:54:17,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:54:17,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:54:17,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 00:54:17,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 00:54:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 00:54:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:54:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:54:17,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 00:54:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 00:54:17,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 00:54:17,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 00:55:56,977 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-07 00:55:56,977 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-07 00:55:56,977 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 00:55:56,978 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 00:55:56,979 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 00:55:57,024 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:55:57,025 INFO L299 CfgBuilder]: Removed 5367 assume(true) statements. [2021-11-07 00:55:57,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:55:57 BoogieIcfgContainer [2021-11-07 00:55:57,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:55:57,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:55:57,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:55:57,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:55:57,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:54:10" (1/3) ... [2021-11-07 00:55:57,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55319231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:55:57, skipping insertion in model container [2021-11-07 00:55:57,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:15" (2/3) ... [2021-11-07 00:55:57,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55319231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:55:57, skipping insertion in model container [2021-11-07 00:55:57,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:55:57" (3/3) ... [2021-11-07 00:55:57,040 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2021-11-07 00:55:57,046 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:55:57,046 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2021-11-07 00:55:57,119 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:55:57,131 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 [2021-11-07 00:55:57,131 INFO L340 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2021-11-07 00:55:57,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 4357 states, 4270 states have (on average 1.2805620608899297) internal successors, (5468), 4356 states have internal predecessors, (5468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:55:57,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 00:55:57,245 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:55:57,246 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:55:57,247 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 00:55:57,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:55:57,256 INFO L85 PathProgramCache]: Analyzing trace with hash 462445981, now seen corresponding path program 1 times [2021-11-07 00:55:57,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:55:57,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063838505] [2021-11-07 00:55:57,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:55:57,280 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:55:57,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:55:57,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:55:57,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:55:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:55:58,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:55:58,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:55:59,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:55:59,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:55:59,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:55:59,373 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:55:59,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063838505] [2021-11-07 00:55:59,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063838505] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:55:59,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:55:59,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:55:59,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719047564] [2021-11-07 00:55:59,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:55:59,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:55:59,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:55:59,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:55:59,416 INFO L87 Difference]: Start difference. First operand has 4357 states, 4270 states have (on average 1.2805620608899297) internal successors, (5468), 4356 states have internal predecessors, (5468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:02,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:02,648 INFO L93 Difference]: Finished difference Result 16705 states and 20955 transitions. [2021-11-07 00:56:02,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:56:02,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 00:56:02,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:02,745 INFO L225 Difference]: With dead ends: 16705 [2021-11-07 00:56:02,745 INFO L226 Difference]: Without dead ends: 12002 [2021-11-07 00:56:02,768 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:56:02,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12002 states. [2021-11-07 00:56:03,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12002 to 11834. [2021-11-07 00:56:03,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11834 states, 11747 states have (on average 1.2187792627904996) internal successors, (14317), 11833 states have internal predecessors, (14317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11834 states to 11834 states and 14317 transitions. [2021-11-07 00:56:03,383 INFO L78 Accepts]: Start accepts. Automaton has 11834 states and 14317 transitions. Word has length 39 [2021-11-07 00:56:03,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:03,385 INFO L470 AbstractCegarLoop]: Abstraction has 11834 states and 14317 transitions. [2021-11-07 00:56:03,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:03,385 INFO L276 IsEmpty]: Start isEmpty. Operand 11834 states and 14317 transitions. [2021-11-07 00:56:03,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 00:56:03,394 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:03,394 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:56:03,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:56:03,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:03,609 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 00:56:03,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:03,610 INFO L85 PathProgramCache]: Analyzing trace with hash -958248383, now seen corresponding path program 1 times [2021-11-07 00:56:03,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:03,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452255007] [2021-11-07 00:56:03,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:03,613 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:03,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:03,615 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:03,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:56:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:05,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:56:05,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:05,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:05,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:05,565 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:05,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452255007] [2021-11-07 00:56:05,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452255007] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:05,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:05,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:56:05,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797062121] [2021-11-07 00:56:05,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:56:05,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:05,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:56:05,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:56:05,569 INFO L87 Difference]: Start difference. First operand 11834 states and 14317 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:10,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:10,001 INFO L93 Difference]: Finished difference Result 44471 states and 53707 transitions. [2021-11-07 00:56:10,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:56:10,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 00:56:10,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:10,178 INFO L225 Difference]: With dead ends: 44471 [2021-11-07 00:56:10,178 INFO L226 Difference]: Without dead ends: 32697 [2021-11-07 00:56:10,211 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:56:10,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32697 states. [2021-11-07 00:56:11,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32697 to 28511. [2021-11-07 00:56:11,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28511 states, 28424 states have (on average 1.2114410357444414) internal successors, (34434), 28510 states have internal predecessors, (34434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:11,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28511 states to 28511 states and 34434 transitions. [2021-11-07 00:56:11,898 INFO L78 Accepts]: Start accepts. Automaton has 28511 states and 34434 transitions. Word has length 39 [2021-11-07 00:56:11,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:11,898 INFO L470 AbstractCegarLoop]: Abstraction has 28511 states and 34434 transitions. [2021-11-07 00:56:11,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:11,900 INFO L276 IsEmpty]: Start isEmpty. Operand 28511 states and 34434 transitions. [2021-11-07 00:56:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 00:56:11,904 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:11,904 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:56:11,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:56:12,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:12,129 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 00:56:12,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:12,129 INFO L85 PathProgramCache]: Analyzing trace with hash 914697269, now seen corresponding path program 1 times [2021-11-07 00:56:12,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:12,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143966534] [2021-11-07 00:56:12,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:12,141 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:12,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:12,142 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:12,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 00:56:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:14,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:56:14,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:14,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:14,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:14,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:14,396 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:14,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143966534] [2021-11-07 00:56:14,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143966534] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:14,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:14,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:56:14,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493239743] [2021-11-07 00:56:14,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:56:14,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:14,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:56:14,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:56:14,399 INFO L87 Difference]: Start difference. First operand 28511 states and 34434 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:18,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:18,362 INFO L93 Difference]: Finished difference Result 59203 states and 71559 transitions. [2021-11-07 00:56:18,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:56:18,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-07 00:56:18,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:18,453 INFO L225 Difference]: With dead ends: 59203 [2021-11-07 00:56:18,453 INFO L226 Difference]: Without dead ends: 30752 [2021-11-07 00:56:18,502 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:56:18,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30752 states. [2021-11-07 00:56:19,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30752 to 30528. [2021-11-07 00:56:19,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30528 states, 30441 states have (on average 1.2114582306757333) internal successors, (36878), 30527 states have internal predecessors, (36878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:19,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30528 states to 30528 states and 36878 transitions. [2021-11-07 00:56:19,960 INFO L78 Accepts]: Start accepts. Automaton has 30528 states and 36878 transitions. Word has length 45 [2021-11-07 00:56:19,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:19,961 INFO L470 AbstractCegarLoop]: Abstraction has 30528 states and 36878 transitions. [2021-11-07 00:56:19,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:19,963 INFO L276 IsEmpty]: Start isEmpty. Operand 30528 states and 36878 transitions. [2021-11-07 00:56:19,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-07 00:56:19,964 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:19,964 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:56:20,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 00:56:20,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:20,188 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 00:56:20,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:20,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1176721246, now seen corresponding path program 1 times [2021-11-07 00:56:20,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:20,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243905031] [2021-11-07 00:56:20,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:20,192 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:20,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:20,194 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:20,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 00:56:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:21,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:56:21,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:22,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:22,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:22,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:22,337 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:22,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243905031] [2021-11-07 00:56:22,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243905031] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:22,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:22,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:56:22,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257525974] [2021-11-07 00:56:22,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:56:22,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:22,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:56:22,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:56:22,340 INFO L87 Difference]: Start difference. First operand 30528 states and 36878 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:26,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:26,868 INFO L93 Difference]: Finished difference Result 102583 states and 124645 transitions. [2021-11-07 00:56:26,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:56:26,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-07 00:56:26,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:27,086 INFO L225 Difference]: With dead ends: 102583 [2021-11-07 00:56:27,087 INFO L226 Difference]: Without dead ends: 72115 [2021-11-07 00:56:27,164 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:56:27,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72115 states. [2021-11-07 00:56:30,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72115 to 70645. [2021-11-07 00:56:30,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70645 states, 70558 states have (on average 1.2209388021202414) internal successors, (86147), 70644 states have internal predecessors, (86147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:30,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70645 states to 70645 states and 86147 transitions. [2021-11-07 00:56:30,290 INFO L78 Accepts]: Start accepts. Automaton has 70645 states and 86147 transitions. Word has length 50 [2021-11-07 00:56:30,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:30,293 INFO L470 AbstractCegarLoop]: Abstraction has 70645 states and 86147 transitions. [2021-11-07 00:56:30,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:30,293 INFO L276 IsEmpty]: Start isEmpty. Operand 70645 states and 86147 transitions. [2021-11-07 00:56:30,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 00:56:30,294 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:30,295 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:56:30,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 00:56:30,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:30,516 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 00:56:30,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:30,517 INFO L85 PathProgramCache]: Analyzing trace with hash -853583117, now seen corresponding path program 1 times [2021-11-07 00:56:30,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:30,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155677468] [2021-11-07 00:56:30,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:30,520 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:30,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:30,533 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:30,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 00:56:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:32,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:56:32,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:32,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:32,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:32,705 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:32,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155677468] [2021-11-07 00:56:32,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155677468] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:32,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:32,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 00:56:32,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47677930] [2021-11-07 00:56:32,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:56:32,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:32,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:56:32,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:56:32,708 INFO L87 Difference]: Start difference. First operand 70645 states and 86147 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:39,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:39,948 INFO L93 Difference]: Finished difference Result 194012 states and 236555 transitions. [2021-11-07 00:56:39,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:56:39,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-07 00:56:39,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:40,329 INFO L225 Difference]: With dead ends: 194012 [2021-11-07 00:56:40,329 INFO L226 Difference]: Without dead ends: 123427 [2021-11-07 00:56:40,464 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:56:40,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123427 states. [2021-11-07 00:56:45,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123427 to 122419. [2021-11-07 00:56:45,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122419 states, 122332 states have (on average 1.2184955694339992) internal successors, (149061), 122418 states have internal predecessors, (149061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:46,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122419 states to 122419 states and 149061 transitions. [2021-11-07 00:56:46,142 INFO L78 Accepts]: Start accepts. Automaton has 122419 states and 149061 transitions. Word has length 54 [2021-11-07 00:56:46,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:46,143 INFO L470 AbstractCegarLoop]: Abstraction has 122419 states and 149061 transitions. [2021-11-07 00:56:46,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:56:46,143 INFO L276 IsEmpty]: Start isEmpty. Operand 122419 states and 149061 transitions. [2021-11-07 00:56:46,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 00:56:46,145 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:46,146 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 00:56:46,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 00:56:46,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:46,349 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 00:56:46,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:46,349 INFO L85 PathProgramCache]: Analyzing trace with hash 249422810, now seen corresponding path program 1 times [2021-11-07 00:56:46,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:46,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41939643] [2021-11-07 00:56:46,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:46,352 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:46,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:46,353 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:46,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59fd112f-d4c2-4cf5-b2b2-c6e20f9a92c6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 00:56:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:47,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:56:47,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:48,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:48,431 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:48,431 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:48,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41939643] [2021-11-07 00:56:48,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41939643] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:48,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:48,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:56:48,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176926838] [2021-11-07 00:56:48,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:56:48,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:48,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:56:48,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:56:48,433 INFO L87 Difference]: Start difference. First operand 122419 states and 149061 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:57:01,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:01,457 INFO L93 Difference]: Finished difference Result 367560 states and 447615 transitions. [2021-11-07 00:57:01,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:57:01,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-07 00:57:01,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:02,072 INFO L225 Difference]: With dead ends: 367560 [2021-11-07 00:57:02,072 INFO L226 Difference]: Without dead ends: 245201 [2021-11-07 00:57:02,277 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:57:02,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245201 states.