./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-ethernet-8390-axnet_cs.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_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/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_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/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-ethernet-8390-axnet_cs.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/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_03fe2cff-747a-4241-9ca2-43c9df399ff2/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 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:09:53,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:09:53,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:09:53,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:09:53,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:09:53,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:09:53,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:09:53,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:09:53,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:09:53,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:09:53,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:09:53,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:09:53,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:09:53,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:09:53,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:09:53,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:09:53,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:09:53,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:09:53,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:09:53,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:09:53,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:09:53,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:09:53,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:09:53,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:09:53,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:09:53,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:09:53,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:09:53,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:09:53,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:09:53,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:09:53,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:09:53,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:09:53,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:09:53,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:09:53,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:09:53,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:09:53,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:09:53,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:09:53,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:09:53,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:09:53,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:09:53,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:09:53,409 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:09:53,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:09:53,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:09:53,412 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:09:53,412 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:09:53,413 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:09:53,413 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:09:53,414 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:09:53,415 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:09:53,415 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:09:53,416 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:09:53,416 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:09:53,417 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:09:53,417 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:09:53,418 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:09:53,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:09:53,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:09:53,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:09:53,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:09:53,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:09:53,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:09:53,422 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:09:53,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:09:53,423 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:09:53,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:09:53,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:09:53,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:09:53,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:09:53,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:09:53,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:09:53,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:09:53,426 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:09:53,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:09:53,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:09:53,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:09:53,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:09:53,428 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b [2021-11-07 02:09:53,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:09:53,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:09:53,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:09:53,712 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:09:53,713 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:09:53,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2021-11-07 02:09:53,793 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/data/1f26ff05c/38ed8ea2a6264daf912d9bc48bc3e4cf/FLAG647d86c5b [2021-11-07 02:09:54,842 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:09:54,843 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2021-11-07 02:09:54,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/data/1f26ff05c/38ed8ea2a6264daf912d9bc48bc3e4cf/FLAG647d86c5b [2021-11-07 02:09:55,200 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/data/1f26ff05c/38ed8ea2a6264daf912d9bc48bc3e4cf [2021-11-07 02:09:55,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:09:55,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:09:55,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:55,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:09:55,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:09:55,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:55" (1/1) ... [2021-11-07 02:09:55,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@334b939f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:55, skipping insertion in model container [2021-11-07 02:09:55,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:55" (1/1) ... [2021-11-07 02:09:55,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:09:55,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:09:57,165 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:09:57,167 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:09:58,106 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315060,315073] [2021-11-07 02:09:58,111 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315229,315242] [2021-11-07 02:09:58,111 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315396,315409] [2021-11-07 02:09:58,112 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315564,315577] [2021-11-07 02:09:58,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:58,201 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 02:09:58,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3c3bee9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:58, skipping insertion in model container [2021-11-07 02:09:58,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:58,203 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:09:58,205 INFO L168 Benchmark]: Toolchain (without parser) took 2999.07 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 58.1 MB in the beginning and 52.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 45.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:58,206 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory was 57.6 MB in the beginning and 57.6 MB in the end (delta: 21.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:09:58,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2994.26 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 58.0 MB in the beginning and 52.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 45.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:58,209 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory was 57.6 MB in the beginning and 57.6 MB in the end (delta: 21.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2994.26 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 58.0 MB in the beginning and 52.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 45.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5889]: 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/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_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/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-ethernet-8390-axnet_cs.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/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_03fe2cff-747a-4241-9ca2-43c9df399ff2/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 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:10:00,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:10:00,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:10:00,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:10:00,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:10:00,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:10:00,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:10:00,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:10:00,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:10:00,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:10:00,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:10:00,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:10:00,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:10:00,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:10:00,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:10:00,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:10:00,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:10:00,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:10:00,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:10:00,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:10:00,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:10:00,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:10:00,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:10:00,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:10:00,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:10:00,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:10:00,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:10:00,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:10:00,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:10:00,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:10:00,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:10:00,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:10:00,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:10:00,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:10:00,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:10:00,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:10:00,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:10:00,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:10:00,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:10:00,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:10:00,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:10:00,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:10:00,697 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:10:00,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:10:00,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:10:00,699 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:10:00,700 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:10:00,700 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:10:00,700 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:10:00,700 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:10:00,701 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:10:00,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:10:00,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:10:00,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:10:00,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:10:00,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:10:00,704 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:10:00,704 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:10:00,705 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:10:00,705 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:10:00,705 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:10:00,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:10:00,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:10:00,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:10:00,706 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:10:00,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:10:00,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:10:00,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:10:00,707 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:10:00,707 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:10:00,707 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:10:00,708 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:10:00,708 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:10:00,708 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:10:00,708 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b [2021-11-07 02:10:01,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:10:01,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:10:01,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:10:01,110 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:10:01,112 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:10:01,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2021-11-07 02:10:01,190 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/data/c518b1c22/e545f4395b924f479f13fe37a81838f7/FLAGde7dbb53d [2021-11-07 02:10:02,275 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:10:02,276 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2021-11-07 02:10:02,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/data/c518b1c22/e545f4395b924f479f13fe37a81838f7/FLAGde7dbb53d [2021-11-07 02:10:02,637 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/data/c518b1c22/e545f4395b924f479f13fe37a81838f7 [2021-11-07 02:10:02,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:10:02,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:10:02,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:10:02,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:10:02,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:10:02,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:10:02" (1/1) ... [2021-11-07 02:10:02,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67158d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:02, skipping insertion in model container [2021-11-07 02:10:02,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:10:02" (1/1) ... [2021-11-07 02:10:02,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:10:02,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:10:05,632 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315060,315073] [2021-11-07 02:10:05,636 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315229,315242] [2021-11-07 02:10:05,637 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315396,315409] [2021-11-07 02:10:05,637 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315564,315577] [2021-11-07 02:10:05,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:10:05,828 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:10:05,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:10:06,445 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315060,315073] [2021-11-07 02:10:06,450 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315229,315242] [2021-11-07 02:10:06,451 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315396,315409] [2021-11-07 02:10:06,452 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315564,315577] [2021-11-07 02:10:06,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:10:06,555 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:10:07,058 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315060,315073] [2021-11-07 02:10:07,059 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315229,315242] [2021-11-07 02:10:07,059 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315396,315409] [2021-11-07 02:10:07,060 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_03fe2cff-747a-4241-9ca2-43c9df399ff2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315564,315577] [2021-11-07 02:10:07,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:10:07,279 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:10:07,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:07 WrapperNode [2021-11-07 02:10:07,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:10:07,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:10:07,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:10:07,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:10:07,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:07" (1/1) ... [2021-11-07 02:10:07,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:07" (1/1) ... [2021-11-07 02:10:08,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:10:08,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:10:08,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:10:08,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:10:08,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:07" (1/1) ... [2021-11-07 02:10:08,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:07" (1/1) ... [2021-11-07 02:10:08,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:07" (1/1) ... [2021-11-07 02:10:08,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:07" (1/1) ... [2021-11-07 02:10:08,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:07" (1/1) ... [2021-11-07 02:10:08,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:07" (1/1) ... [2021-11-07 02:10:08,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:07" (1/1) ... [2021-11-07 02:10:09,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:10:09,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:10:09,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:10:09,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:10:09,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:07" (1/1) ... [2021-11-07 02:10:09,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:10:09,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:10:09,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:10:09,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:10:09,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:10:09,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:10:09,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:10:09,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 02:10:09,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 02:10:09,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 02:10:09,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:10:09,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:10:09,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:10:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:10:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 02:10:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:10:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:10:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:10:09,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 02:10:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:10:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:10:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:10:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 02:10:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 02:10:09,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 02:10:09,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 02:10:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_tx_timeout [2021-11-07 02:10:09,242 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_tx_timeout [2021-11-07 02:10:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:10:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:10:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 02:10:09,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 02:10:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 02:10:09,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 02:10:09,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 02:10:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 02:10:09,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:10:09,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:11:34,835 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0bv32; [2021-11-07 02:11:34,835 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-07 02:11:34,835 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-07 02:11:34,836 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 02:11:34,836 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 02:11:34,836 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 02:11:34,892 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:11:34,892 INFO L299 CfgBuilder]: Removed 8324 assume(true) statements. [2021-11-07 02:11:34,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:11:34 BoogieIcfgContainer [2021-11-07 02:11:34,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:11:34,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:11:34,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:11:34,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:11:34,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:10:02" (1/3) ... [2021-11-07 02:11:34,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e610f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:11:34, skipping insertion in model container [2021-11-07 02:11:34,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:07" (2/3) ... [2021-11-07 02:11:34,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e610f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:11:34, skipping insertion in model container [2021-11-07 02:11:34,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:11:34" (3/3) ... [2021-11-07 02:11:34,910 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2021-11-07 02:11:34,917 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:11:34,918 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2021-11-07 02:11:34,992 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:11:34,999 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 02:11:34,999 INFO L340 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2021-11-07 02:11:35,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 3785 states, 3722 states have (on average 1.2525523911875336) internal successors, (4662), 3780 states have internal predecessors, (4662), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-07 02:11:35,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 02:11:35,114 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:11:35,115 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 02:11:35,116 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 02:11:35,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:11:35,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1406977347, now seen corresponding path program 1 times [2021-11-07 02:11:35,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:11:35,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992992824] [2021-11-07 02:11:35,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:35,149 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:11:35,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:11:35,166 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:11:35,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:11:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:11:38,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 2375 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:11:38,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:11:39,227 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 02:11:39,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:11:39,558 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 02:11:39,558 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:11:39,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992992824] [2021-11-07 02:11:39,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992992824] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:11:39,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:11:39,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:11:39,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285628611] [2021-11-07 02:11:39,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:11:39,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:11:39,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:11:39,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:11:39,593 INFO L87 Difference]: Start difference. First operand has 3785 states, 3722 states have (on average 1.2525523911875336) internal successors, (4662), 3780 states have internal predecessors, (4662), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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 02:11:43,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:11:43,382 INFO L93 Difference]: Finished difference Result 14483 states and 17848 transitions. [2021-11-07 02:11:43,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:11:43,385 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 02:11:43,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:11:43,488 INFO L225 Difference]: With dead ends: 14483 [2021-11-07 02:11:43,488 INFO L226 Difference]: Without dead ends: 9617 [2021-11-07 02:11:43,519 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 02:11:43,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9617 states. [2021-11-07 02:11:44,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9617 to 9529. [2021-11-07 02:11:44,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9529 states, 9456 states have (on average 1.1401226734348562) internal successors, (10781), 9516 states have internal predecessors, (10781), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-07 02:11:44,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9529 states to 9529 states and 10799 transitions. [2021-11-07 02:11:44,270 INFO L78 Accepts]: Start accepts. Automaton has 9529 states and 10799 transitions. Word has length 39 [2021-11-07 02:11:44,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:11:44,270 INFO L470 AbstractCegarLoop]: Abstraction has 9529 states and 10799 transitions. [2021-11-07 02:11:44,271 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 02:11:44,272 INFO L276 IsEmpty]: Start isEmpty. Operand 9529 states and 10799 transitions. [2021-11-07 02:11:44,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 02:11:44,283 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:11:44,284 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 02:11:44,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:11:44,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:11:44,508 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 02:11:44,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:11:44,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1731787906, now seen corresponding path program 1 times [2021-11-07 02:11:44,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:11:44,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144849730] [2021-11-07 02:11:44,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:44,511 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:11:44,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:11:44,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:11:44,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:11:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:11:47,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 2412 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:11:47,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:11:48,346 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 02:11:48,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:11:48,739 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 02:11:48,739 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:11:48,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144849730] [2021-11-07 02:11:48,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144849730] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:11:48,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:11:48,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:11:48,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356104832] [2021-11-07 02:11:48,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:11:48,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:11:48,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:11:48,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:11:48,744 INFO L87 Difference]: Start difference. First operand 9529 states and 10799 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 02:11:53,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:11:53,337 INFO L93 Difference]: Finished difference Result 33421 states and 37769 transitions. [2021-11-07 02:11:53,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:11:53,339 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 02:11:53,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:11:53,527 INFO L225 Difference]: With dead ends: 33421 [2021-11-07 02:11:53,527 INFO L226 Difference]: Without dead ends: 23952 [2021-11-07 02:11:53,567 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:11:53,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23952 states. [2021-11-07 02:11:55,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23952 to 20650. [2021-11-07 02:11:55,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20650 states, 20547 states have (on average 1.1413831702925001) internal successors, (23452), 20613 states have internal predecessors, (23452), 27 states have call successors, (27), 18 states have call predecessors, (27), 18 states have return successors, (45), 27 states have call predecessors, (45), 27 states have call successors, (45) [2021-11-07 02:11:55,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20650 states to 20650 states and 23524 transitions. [2021-11-07 02:11:55,405 INFO L78 Accepts]: Start accepts. Automaton has 20650 states and 23524 transitions. Word has length 39 [2021-11-07 02:11:55,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:11:55,405 INFO L470 AbstractCegarLoop]: Abstraction has 20650 states and 23524 transitions. [2021-11-07 02:11:55,406 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 02:11:55,407 INFO L276 IsEmpty]: Start isEmpty. Operand 20650 states and 23524 transitions. [2021-11-07 02:11:55,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 02:11:55,412 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:11:55,412 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 02:11:55,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:11:55,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:11:55,628 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 02:11:55,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:11:55,629 INFO L85 PathProgramCache]: Analyzing trace with hash -597381755, now seen corresponding path program 1 times [2021-11-07 02:11:55,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:11:55,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490479142] [2021-11-07 02:11:55,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:55,642 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:11:55,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:11:55,644 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:11:55,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:11:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:11:58,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 2374 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:11:58,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:11:59,379 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 02:11:59,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:11:59,717 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 02:11:59,717 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:11:59,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490479142] [2021-11-07 02:11:59,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490479142] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:11:59,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:11:59,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:11:59,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884687779] [2021-11-07 02:11:59,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:11:59,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:11:59,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:11:59,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:11:59,721 INFO L87 Difference]: Start difference. First operand 20650 states and 23524 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 02:12:04,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:04,446 INFO L93 Difference]: Finished difference Result 53984 states and 61433 transitions. [2021-11-07 02:12:04,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:12:04,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 45 [2021-11-07 02:12:04,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:04,577 INFO L225 Difference]: With dead ends: 53984 [2021-11-07 02:12:04,578 INFO L226 Difference]: Without dead ends: 33394 [2021-11-07 02:12:04,644 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 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 02:12:04,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33394 states. [2021-11-07 02:12:06,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33394 to 32401. [2021-11-07 02:12:06,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32401 states, 32292 states have (on average 1.139663074445683) internal successors, (36802), 32361 states have internal predecessors, (36802), 27 states have call successors, (27), 18 states have call predecessors, (27), 24 states have return successors, (54), 33 states have call predecessors, (54), 27 states have call successors, (54) [2021-11-07 02:12:06,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32401 states to 32401 states and 36883 transitions. [2021-11-07 02:12:06,534 INFO L78 Accepts]: Start accepts. Automaton has 32401 states and 36883 transitions. Word has length 45 [2021-11-07 02:12:06,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:06,535 INFO L470 AbstractCegarLoop]: Abstraction has 32401 states and 36883 transitions. [2021-11-07 02:12:06,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 02:12:06,536 INFO L276 IsEmpty]: Start isEmpty. Operand 32401 states and 36883 transitions. [2021-11-07 02:12:06,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 02:12:06,538 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:06,538 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] [2021-11-07 02:12:06,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:06,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:12:06,752 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 02:12:06,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:06,753 INFO L85 PathProgramCache]: Analyzing trace with hash -218861770, now seen corresponding path program 1 times [2021-11-07 02:12:06,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:06,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136303028] [2021-11-07 02:12:06,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:06,758 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:06,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:06,760 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:06,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:12:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:10,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:12:10,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:11,020 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 02:12:11,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:11,532 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 02:12:11,532 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:12:11,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136303028] [2021-11-07 02:12:11,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136303028] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:11,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:12:11,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:12:11,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734226973] [2021-11-07 02:12:11,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:12:11,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:11,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:12:11,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:12:11,535 INFO L87 Difference]: Start difference. First operand 32401 states and 36883 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 02:12:20,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:20,982 INFO L93 Difference]: Finished difference Result 61123 states and 70553 transitions. [2021-11-07 02:12:20,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:12:20,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 51 [2021-11-07 02:12:20,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:21,106 INFO L225 Difference]: With dead ends: 61123 [2021-11-07 02:12:21,107 INFO L226 Difference]: Without dead ends: 28782 [2021-11-07 02:12:21,178 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 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 02:12:21,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28782 states. [2021-11-07 02:12:22,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28782 to 24286. [2021-11-07 02:12:22,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24286 states, 24194 states have (on average 1.1611556584277094) internal successors, (28093), 24259 states have internal predecessors, (28093), 18 states have call successors, (18), 12 states have call predecessors, (18), 16 states have return successors, (36), 22 states have call predecessors, (36), 18 states have call successors, (36) [2021-11-07 02:12:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24286 states to 24286 states and 28147 transitions. [2021-11-07 02:12:22,879 INFO L78 Accepts]: Start accepts. Automaton has 24286 states and 28147 transitions. Word has length 51 [2021-11-07 02:12:22,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:22,881 INFO L470 AbstractCegarLoop]: Abstraction has 24286 states and 28147 transitions. [2021-11-07 02:12:22,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 02:12:22,881 INFO L276 IsEmpty]: Start isEmpty. Operand 24286 states and 28147 transitions. [2021-11-07 02:12:22,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 02:12:22,884 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:22,884 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:12:22,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:23,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:12:23,100 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 02:12:23,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:23,101 INFO L85 PathProgramCache]: Analyzing trace with hash -591151053, now seen corresponding path program 1 times [2021-11-07 02:12:23,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:23,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456677248] [2021-11-07 02:12:23,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:23,106 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:23,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:23,109 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:23,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:12:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:26,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 2443 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:12:26,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:27,187 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:27,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:27,597 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:27,597 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:12:27,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456677248] [2021-11-07 02:12:27,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456677248] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:27,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:12:27,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:12:27,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881005112] [2021-11-07 02:12:27,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:12:27,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:27,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:12:27,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:12:27,600 INFO L87 Difference]: Start difference. First operand 24286 states and 28147 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 02:12:32,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:32,333 INFO L93 Difference]: Finished difference Result 71902 states and 83340 transitions. [2021-11-07 02:12:32,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:12:32,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 69 [2021-11-07 02:12:32,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:32,581 INFO L225 Difference]: With dead ends: 71902 [2021-11-07 02:12:32,581 INFO L226 Difference]: Without dead ends: 47734 [2021-11-07 02:12:32,624 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 134 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 02:12:32,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47734 states. [2021-11-07 02:12:35,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47734 to 47646. [2021-11-07 02:12:35,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47646 states, 47520 states have (on average 1.1592382154882155) internal successors, (55087), 47593 states have internal predecessors, (55087), 36 states have call successors, (36), 24 states have call predecessors, (36), 32 states have return successors, (72), 44 states have call predecessors, (72), 36 states have call successors, (72) [2021-11-07 02:12:35,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47646 states to 47646 states and 55195 transitions. [2021-11-07 02:12:35,348 INFO L78 Accepts]: Start accepts. Automaton has 47646 states and 55195 transitions. Word has length 69 [2021-11-07 02:12:35,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:35,351 INFO L470 AbstractCegarLoop]: Abstraction has 47646 states and 55195 transitions. [2021-11-07 02:12:35,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 02:12:35,351 INFO L276 IsEmpty]: Start isEmpty. Operand 47646 states and 55195 transitions. [2021-11-07 02:12:35,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 02:12:35,354 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:35,354 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:12:35,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:35,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:12:35,576 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 02:12:35,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:35,576 INFO L85 PathProgramCache]: Analyzing trace with hash -443277702, now seen corresponding path program 1 times [2021-11-07 02:12:35,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:35,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425942518] [2021-11-07 02:12:35,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:35,581 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:35,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:35,582 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:35,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:12:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:38,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 2414 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:12:38,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:39,876 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:12:39,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:41,141 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:12:41,141 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:12:41,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425942518] [2021-11-07 02:12:41,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425942518] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:41,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:12:41,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:12:41,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475098148] [2021-11-07 02:12:41,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:12:41,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:41,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:12:41,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:12:41,145 INFO L87 Difference]: Start difference. First operand 47646 states and 55195 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 02:12:44,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:44,232 INFO L93 Difference]: Finished difference Result 47646 states and 55195 transitions. [2021-11-07 02:12:44,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:12:44,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 69 [2021-11-07 02:12:44,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:44,411 INFO L225 Difference]: With dead ends: 47646 [2021-11-07 02:12:44,411 INFO L226 Difference]: Without dead ends: 47640 [2021-11-07 02:12:44,425 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:12:44,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47640 states. [2021-11-07 02:12:46,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47640 to 47640. [2021-11-07 02:12:46,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47640 states, 47517 states have (on average 1.1591851337416084) internal successors, (55081), 47587 states have internal predecessors, (55081), 36 states have call successors, (36), 24 states have call predecessors, (36), 32 states have return successors, (72), 44 states have call predecessors, (72), 36 states have call successors, (72) [2021-11-07 02:12:46,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47640 states to 47640 states and 55189 transitions. [2021-11-07 02:12:46,752 INFO L78 Accepts]: Start accepts. Automaton has 47640 states and 55189 transitions. Word has length 69 [2021-11-07 02:12:46,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:46,753 INFO L470 AbstractCegarLoop]: Abstraction has 47640 states and 55189 transitions. [2021-11-07 02:12:46,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 02:12:46,753 INFO L276 IsEmpty]: Start isEmpty. Operand 47640 states and 55189 transitions. [2021-11-07 02:12:46,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-07 02:12:46,755 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:46,755 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:12:46,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:46,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:12:46,960 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 02:12:46,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:46,961 INFO L85 PathProgramCache]: Analyzing trace with hash -787889475, now seen corresponding path program 1 times [2021-11-07 02:12:46,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:46,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749487144] [2021-11-07 02:12:46,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:46,964 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:46,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:46,965 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:46,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:12:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:50,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 2417 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:12:50,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:51,531 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:12:51,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:53,011 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:12:53,011 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:12:53,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749487144] [2021-11-07 02:12:53,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749487144] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:53,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:12:53,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:12:53,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647555984] [2021-11-07 02:12:53,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:12:53,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:53,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:12:53,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:12:53,014 INFO L87 Difference]: Start difference. First operand 47640 states and 55189 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 02:12:57,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:57,192 INFO L93 Difference]: Finished difference Result 47640 states and 55189 transitions. [2021-11-07 02:12:57,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:12:57,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 71 [2021-11-07 02:12:57,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:57,300 INFO L225 Difference]: With dead ends: 47640 [2021-11-07 02:12:57,300 INFO L226 Difference]: Without dead ends: 47634 [2021-11-07 02:12:57,313 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:12:57,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47634 states. [2021-11-07 02:13:00,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47634 to 47634. [2021-11-07 02:13:00,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47634 states, 47514 states have (on average 1.159132045291914) internal successors, (55075), 47581 states have internal predecessors, (55075), 36 states have call successors, (36), 24 states have call predecessors, (36), 32 states have return successors, (72), 44 states have call predecessors, (72), 36 states have call successors, (72) [2021-11-07 02:13:00,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47634 states to 47634 states and 55183 transitions. [2021-11-07 02:13:00,309 INFO L78 Accepts]: Start accepts. Automaton has 47634 states and 55183 transitions. Word has length 71 [2021-11-07 02:13:00,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:13:00,309 INFO L470 AbstractCegarLoop]: Abstraction has 47634 states and 55183 transitions. [2021-11-07 02:13:00,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 02:13:00,310 INFO L276 IsEmpty]: Start isEmpty. Operand 47634 states and 55183 transitions. [2021-11-07 02:13:00,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 02:13:00,312 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:13:00,312 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:13:00,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:13:00,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:13:00,513 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 02:13:00,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:13:00,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1247321216, now seen corresponding path program 1 times [2021-11-07 02:13:00,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:13:00,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101940645] [2021-11-07 02:13:00,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:13:00,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:13:00,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:13:00,520 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:13:00,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:13:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:13:03,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 2420 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:13:03,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:13:05,034 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:13:05,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:13:06,380 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:13:06,381 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:13:06,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101940645] [2021-11-07 02:13:06,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101940645] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:13:06,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:13:06,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:13:06,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887365857] [2021-11-07 02:13:06,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:13:06,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:13:06,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:13:06,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:13:06,383 INFO L87 Difference]: Start difference. First operand 47634 states and 55183 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 02:13:10,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:13:10,460 INFO L93 Difference]: Finished difference Result 47634 states and 55183 transitions. [2021-11-07 02:13:10,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:13:10,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 73 [2021-11-07 02:13:10,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:13:10,579 INFO L225 Difference]: With dead ends: 47634 [2021-11-07 02:13:10,579 INFO L226 Difference]: Without dead ends: 47628 [2021-11-07 02:13:10,596 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:13:10,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47628 states. [2021-11-07 02:13:13,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47628 to 47628. [2021-11-07 02:13:13,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47628 states, 47511 states have (on average 1.1590789501378629) internal successors, (55069), 47575 states have internal predecessors, (55069), 36 states have call successors, (36), 24 states have call predecessors, (36), 32 states have return successors, (72), 44 states have call predecessors, (72), 36 states have call successors, (72) [2021-11-07 02:13:14,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47628 states to 47628 states and 55177 transitions. [2021-11-07 02:13:14,015 INFO L78 Accepts]: Start accepts. Automaton has 47628 states and 55177 transitions. Word has length 73 [2021-11-07 02:13:14,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:13:14,015 INFO L470 AbstractCegarLoop]: Abstraction has 47628 states and 55177 transitions. [2021-11-07 02:13:14,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 02:13:14,016 INFO L276 IsEmpty]: Start isEmpty. Operand 47628 states and 55177 transitions. [2021-11-07 02:13:14,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 02:13:14,018 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:13:14,019 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:13:14,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:13:14,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:13:14,221 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 02:13:14,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:13:14,221 INFO L85 PathProgramCache]: Analyzing trace with hash -379592509, now seen corresponding path program 1 times [2021-11-07 02:13:14,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:13:14,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075224126] [2021-11-07 02:13:14,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:13:14,225 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:13:14,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:13:14,226 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:13:14,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:13:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:13:17,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 2423 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:13:17,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:13:19,555 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:13:19,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:13:20,902 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:13:20,903 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:13:20,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075224126] [2021-11-07 02:13:20,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075224126] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:13:20,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:13:20,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:13:20,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667332060] [2021-11-07 02:13:20,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:13:20,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:13:20,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:13:20,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:13:20,905 INFO L87 Difference]: Start difference. First operand 47628 states and 55177 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 02:13:25,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:13:25,029 INFO L93 Difference]: Finished difference Result 47628 states and 55177 transitions. [2021-11-07 02:13:25,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:13:25,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 75 [2021-11-07 02:13:25,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:13:25,122 INFO L225 Difference]: With dead ends: 47628 [2021-11-07 02:13:25,122 INFO L226 Difference]: Without dead ends: 47622 [2021-11-07 02:13:25,134 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:13:25,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47622 states. [2021-11-07 02:13:27,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47622 to 47622. [2021-11-07 02:13:28,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47622 states, 47508 states have (on average 1.1590258482781848) internal successors, (55063), 47569 states have internal predecessors, (55063), 36 states have call successors, (36), 24 states have call predecessors, (36), 32 states have return successors, (72), 44 states have call predecessors, (72), 36 states have call successors, (72) [2021-11-07 02:13:28,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47622 states to 47622 states and 55171 transitions. [2021-11-07 02:13:28,127 INFO L78 Accepts]: Start accepts. Automaton has 47622 states and 55171 transitions. Word has length 75 [2021-11-07 02:13:28,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:13:28,127 INFO L470 AbstractCegarLoop]: Abstraction has 47622 states and 55171 transitions. [2021-11-07 02:13:28,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 02:13:28,127 INFO L276 IsEmpty]: Start isEmpty. Operand 47622 states and 55171 transitions. [2021-11-07 02:13:28,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 02:13:28,129 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:13:28,130 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:13:28,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:13:28,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:13:28,352 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 55 more)] === [2021-11-07 02:13:28,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:13:28,352 INFO L85 PathProgramCache]: Analyzing trace with hash 284039814, now seen corresponding path program 1 times [2021-11-07 02:13:28,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:13:28,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662217246] [2021-11-07 02:13:28,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:13:28,356 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:13:28,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:13:28,357 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:13:28,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03fe2cff-747a-4241-9ca2-43c9df399ff2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process