./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/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 e184773994bf5ba427e3ad6843df80bcf1aa90cb50c2ace36ee6ac9939c1f916 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:09:22,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:09:22,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:09:22,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:09:22,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:09:22,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:09:22,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:09:22,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:09:22,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:09:22,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:09:22,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:09:22,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:09:22,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:09:22,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:09:22,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:09:22,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:09:22,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:09:22,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:09:22,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:09:22,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:09:22,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:09:22,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:09:22,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:09:22,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:09:22,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:09:22,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:09:22,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:09:22,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:09:22,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:09:22,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:09:22,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:09:22,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:09:22,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:09:22,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:09:22,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:09:22,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:09:22,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:09:22,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:09:22,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:09:22,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:09:22,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:09:22,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:09:22,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:09:22,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:09:22,364 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:09:22,364 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:09:22,364 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:09:22,365 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:09:22,365 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:09:22,365 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:09:22,366 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:09:22,366 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:09:22,367 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:09:22,367 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:09:22,367 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:09:22,368 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:09:22,368 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:09:22,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:09:22,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:09:22,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:09:22,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:09:22,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:09:22,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:09:22,370 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:09:22,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:09:22,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:09:22,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:09:22,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:09:22,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:09:22,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:09:22,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:09:22,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:09:22,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:09:22,372 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:09:22,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:09:22,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:09:22,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:09:22,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:09:22,373 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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e184773994bf5ba427e3ad6843df80bcf1aa90cb50c2ace36ee6ac9939c1f916 [2021-11-07 02:09:22,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:09:22,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:09:22,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:09:22,703 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:09:22,705 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:09:22,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 02:09:22,798 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/data/a243904c8/d03851458cc645849358da8ddd0eff02/FLAGea665670f [2021-11-07 02:09:23,890 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:09:23,892 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 02:09:23,980 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/data/a243904c8/d03851458cc645849358da8ddd0eff02/FLAGea665670f [2021-11-07 02:09:24,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/data/a243904c8/d03851458cc645849358da8ddd0eff02 [2021-11-07 02:09:24,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:09:24,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:09:24,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:24,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:09:24,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:09:24,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:24" (1/1) ... [2021-11-07 02:09:24,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4907e484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:24, skipping insertion in model container [2021-11-07 02:09:24,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:24" (1/1) ... [2021-11-07 02:09:24,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:09:24,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:09:26,870 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 02:09:26,879 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 02:09:27,040 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 02:09:27,041 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 02:09:27,095 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 02:09:27,096 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 02:09:28,222 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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340444,340457] [2021-11-07 02:09:28,226 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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340589,340602] [2021-11-07 02:09:28,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:28,351 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 02:09:28,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@c9da075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:28, skipping insertion in model container [2021-11-07 02:09:28,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:28,354 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:09:28,357 INFO L168 Benchmark]: Toolchain (without parser) took 4140.21 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 73.0 MB in the beginning and 74.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 64.3 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:28,358 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 100.7 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:09:28,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4137.34 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 73.0 MB in the beginning and 74.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 64.3 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:28,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 100.7 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4137.34 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 73.0 MB in the beginning and 74.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 64.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7450]: 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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/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 e184773994bf5ba427e3ad6843df80bcf1aa90cb50c2ace36ee6ac9939c1f916 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:09:31,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:09:31,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:09:31,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:09:31,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:09:31,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:09:31,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:09:31,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:09:31,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:09:31,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:09:31,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:09:31,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:09:31,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:09:31,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:09:31,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:09:31,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:09:31,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:09:31,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:09:31,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:09:31,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:09:31,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:09:31,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:09:31,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:09:31,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:09:31,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:09:31,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:09:31,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:09:31,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:09:31,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:09:31,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:09:31,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:09:31,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:09:31,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:09:31,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:09:31,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:09:31,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:09:31,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:09:31,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:09:31,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:09:31,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:09:31,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:09:31,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:09:31,414 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:09:31,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:09:31,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:09:31,417 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:09:31,417 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:09:31,417 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:09:31,418 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:09:31,418 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:09:31,419 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:09:31,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:09:31,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:09:31,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:09:31,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:09:31,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:09:31,423 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:09:31,423 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:09:31,423 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:09:31,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:09:31,424 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:09:31,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:09:31,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:09:31,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:09:31,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:09:31,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:09:31,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:09:31,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:09:31,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:09:31,426 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:09:31,427 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:09:31,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:09:31,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:09:31,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:09:31,428 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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e184773994bf5ba427e3ad6843df80bcf1aa90cb50c2ace36ee6ac9939c1f916 [2021-11-07 02:09:31,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:09:31,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:09:31,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:09:31,986 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:09:31,987 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:09:31,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 02:09:32,068 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/data/7728ba493/b440bd62c1654d8fb912706873be62d4/FLAG38743a47d [2021-11-07 02:09:33,170 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:09:33,171 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 02:09:33,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/data/7728ba493/b440bd62c1654d8fb912706873be62d4/FLAG38743a47d [2021-11-07 02:09:33,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/data/7728ba493/b440bd62c1654d8fb912706873be62d4 [2021-11-07 02:09:33,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:09:33,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:09:33,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:33,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:09:33,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:09:33,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:33" (1/1) ... [2021-11-07 02:09:33,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f56618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:33, skipping insertion in model container [2021-11-07 02:09:33,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:33" (1/1) ... [2021-11-07 02:09:33,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:09:33,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:09:37,600 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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340444,340457] [2021-11-07 02:09:37,604 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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340589,340602] [2021-11-07 02:09:37,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:37,723 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:09:37,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:09:38,422 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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340444,340457] [2021-11-07 02:09:38,422 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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340589,340602] [2021-11-07 02:09:38,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:38,483 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:09:39,037 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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340444,340457] [2021-11-07 02:09:39,038 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_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[340589,340602] [2021-11-07 02:09:39,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:39,343 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:09:39,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:39 WrapperNode [2021-11-07 02:09:39,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:39,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:09:39,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:09:39,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:09:39,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:39" (1/1) ... [2021-11-07 02:09:39,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:39" (1/1) ... [2021-11-07 02:09:58,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:09:58,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:09:58,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:09:58,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:09:58,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:39" (1/1) ... [2021-11-07 02:09:58,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:39" (1/1) ... [2021-11-07 02:09:59,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:39" (1/1) ... [2021-11-07 02:09:59,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:39" (1/1) ... [2021-11-07 02:10:02,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:39" (1/1) ... [2021-11-07 02:10:02,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:39" (1/1) ... [2021-11-07 02:10:03,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:39" (1/1) ... [2021-11-07 02:10:04,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:10:04,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:10:04,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:10:04,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:10:04,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:39" (1/1) ... [2021-11-07 02:10:04,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:10:04,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:10:04,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:10:04,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:10:04,347 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-07 02:10:04,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:10:04,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:10:04,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:10:04,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:10:04,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:10:04,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:10:04,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 02:10:04,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 02:10:04,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 02:10:04,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 02:10:04,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:10:04,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:10:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:10:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:10:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:10:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 02:10:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 02:10:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 02:10:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:10:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:10:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:10:04,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:10:04,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 02:10:04,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:10:04,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:10:04,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 02:10:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 02:10:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 02:10:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 02:14:48,289 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_14_returnLabel: main_#res := 0bv32; [2021-11-07 02:14:48,294 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 02:14:48,295 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L9962: #t~ret1340 := main_#res; [2021-11-07 02:14:48,304 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-07 02:14:48,447 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:14:48,447 INFO L299 CfgBuilder]: Removed 44878 assume(true) statements. [2021-11-07 02:14:48,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:14:48 BoogieIcfgContainer [2021-11-07 02:14:48,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:14:48,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:14:48,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:14:48,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:14:48,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:09:33" (1/3) ... [2021-11-07 02:14:48,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3b57db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:14:48, skipping insertion in model container [2021-11-07 02:14:48,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:39" (2/3) ... [2021-11-07 02:14:48,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3b57db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:14:48, skipping insertion in model container [2021-11-07 02:14:48,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:14:48" (3/3) ... [2021-11-07 02:14:48,487 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2021-11-07 02:14:48,493 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:14:48,494 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-07 02:14:48,672 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:14:48,691 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 02:14:48,694 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-07 02:14:49,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 28720 states, 28704 states have (on average 1.2088559085841695) internal successors, (34699), 28719 states have internal predecessors, (34699), 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 02:14:49,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-07 02:14:49,104 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:14:49,105 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:14:49,106 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:14:49,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:14:49,113 INFO L85 PathProgramCache]: Analyzing trace with hash -221297839, now seen corresponding path program 1 times [2021-11-07 02:14:49,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:14:49,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229384237] [2021-11-07 02:14:49,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:14:49,137 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:14:49,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:14:49,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:14:49,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:14:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:14:53,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 1504 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:14:53,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:14:53,863 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 02:14:53,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:14:54,027 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 02:14:54,028 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:14:54,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229384237] [2021-11-07 02:14:54,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229384237] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:14:54,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:14:54,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:14:54,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052621748] [2021-11-07 02:14:54,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:14:54,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:14:54,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:14:54,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:14:54,133 INFO L87 Difference]: Start difference. First operand has 28720 states, 28704 states have (on average 1.2088559085841695) internal successors, (34699), 28719 states have internal predecessors, (34699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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 02:14:55,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:14:55,623 INFO L93 Difference]: Finished difference Result 57401 states and 69348 transitions. [2021-11-07 02:14:55,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:14:55,626 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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 52 [2021-11-07 02:14:55,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:14:55,833 INFO L225 Difference]: With dead ends: 57401 [2021-11-07 02:14:55,833 INFO L226 Difference]: Without dead ends: 24525 [2021-11-07 02:14:55,921 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:14:56,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24525 states. [2021-11-07 02:14:56,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24525 to 24525. [2021-11-07 02:14:56,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24525 states, 24509 states have (on average 1.203843486066343) internal successors, (29505), 24524 states have internal predecessors, (29505), 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 02:14:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24525 states to 24525 states and 29505 transitions. [2021-11-07 02:14:57,204 INFO L78 Accepts]: Start accepts. Automaton has 24525 states and 29505 transitions. Word has length 52 [2021-11-07 02:14:57,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:14:57,219 INFO L470 AbstractCegarLoop]: Abstraction has 24525 states and 29505 transitions. [2021-11-07 02:14:57,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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 02:14:57,221 INFO L276 IsEmpty]: Start isEmpty. Operand 24525 states and 29505 transitions. [2021-11-07 02:14:57,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 02:14:57,231 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:14:57,231 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:14:57,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:14:57,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:14:57,448 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:14:57,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:14:57,449 INFO L85 PathProgramCache]: Analyzing trace with hash -2000935398, now seen corresponding path program 1 times [2021-11-07 02:14:57,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:14:57,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603640142] [2021-11-07 02:14:57,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:14:57,458 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:14:57,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:14:57,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:14:57,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:15:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:15:01,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1508 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 02:15:01,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:15:02,479 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 02:15:02,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:15:02,921 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 02:15:02,921 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:15:02,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603640142] [2021-11-07 02:15:02,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603640142] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:15:02,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:15:02,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-11-07 02:15:02,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668273643] [2021-11-07 02:15:02,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:15:02,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:15:02,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:15:02,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:15:02,925 INFO L87 Difference]: Start difference. First operand 24525 states and 29505 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 02:15:11,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:15:11,725 INFO L93 Difference]: Finished difference Result 49551 states and 59610 transitions. [2021-11-07 02:15:11,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 02:15:11,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 53 [2021-11-07 02:15:11,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:15:11,823 INFO L225 Difference]: With dead ends: 49551 [2021-11-07 02:15:11,823 INFO L226 Difference]: Without dead ends: 25044 [2021-11-07 02:15:11,890 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-11-07 02:15:11,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25044 states. [2021-11-07 02:15:13,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25044 to 24525. [2021-11-07 02:15:13,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24525 states, 24509 states have (on average 1.2038026847280592) internal successors, (29504), 24524 states have internal predecessors, (29504), 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 02:15:13,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24525 states to 24525 states and 29504 transitions. [2021-11-07 02:15:13,899 INFO L78 Accepts]: Start accepts. Automaton has 24525 states and 29504 transitions. Word has length 53 [2021-11-07 02:15:13,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:15:13,899 INFO L470 AbstractCegarLoop]: Abstraction has 24525 states and 29504 transitions. [2021-11-07 02:15:13,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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 02:15:13,900 INFO L276 IsEmpty]: Start isEmpty. Operand 24525 states and 29504 transitions. [2021-11-07 02:15:13,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 02:15:13,901 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:15:13,902 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:15:13,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:15:14,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:15:14,132 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:15:14,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:15:14,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1690587197, now seen corresponding path program 1 times [2021-11-07 02:15:14,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:15:14,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021947308] [2021-11-07 02:15:14,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:15:14,139 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:15:14,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:15:14,140 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:15:14,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:15:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:15:18,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 1515 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:15:18,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:15:18,807 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 02:15:18,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:15:19,256 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 02:15:19,257 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:15:19,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021947308] [2021-11-07 02:15:19,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021947308] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:15:19,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:15:19,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:15:19,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353893647] [2021-11-07 02:15:19,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:15:19,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:15:19,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:15:19,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:15:19,260 INFO L87 Difference]: Start difference. First operand 24525 states and 29504 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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 02:15:21,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:15:21,270 INFO L93 Difference]: Finished difference Result 49019 states and 58975 transitions. [2021-11-07 02:15:21,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:15:21,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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 53 [2021-11-07 02:15:21,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:15:21,334 INFO L225 Difference]: With dead ends: 49019 [2021-11-07 02:15:21,334 INFO L226 Difference]: Without dead ends: 24525 [2021-11-07 02:15:21,375 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 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 02:15:21,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24525 states. [2021-11-07 02:15:23,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24525 to 24525. [2021-11-07 02:15:23,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24525 states, 24509 states have (on average 1.2031498633155167) internal successors, (29488), 24524 states have internal predecessors, (29488), 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 02:15:23,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24525 states to 24525 states and 29488 transitions. [2021-11-07 02:15:23,281 INFO L78 Accepts]: Start accepts. Automaton has 24525 states and 29488 transitions. Word has length 53 [2021-11-07 02:15:23,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:15:23,282 INFO L470 AbstractCegarLoop]: Abstraction has 24525 states and 29488 transitions. [2021-11-07 02:15:23,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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 02:15:23,282 INFO L276 IsEmpty]: Start isEmpty. Operand 24525 states and 29488 transitions. [2021-11-07 02:15:23,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 02:15:23,284 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:15:23,284 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:15:23,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:15:23,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:15:23,500 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:15:23,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:15:23,500 INFO L85 PathProgramCache]: Analyzing trace with hash 868682291, now seen corresponding path program 1 times [2021-11-07 02:15:23,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:15:23,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671113949] [2021-11-07 02:15:23,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:15:23,503 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:15:23,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:15:23,504 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:15:23,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:15:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:15:27,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:15:27,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:15:28,109 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 02:15:28,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:15:28,485 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 02:15:28,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:15:28,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671113949] [2021-11-07 02:15:28,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671113949] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:15:28,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:15:28,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:15:28,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512830703] [2021-11-07 02:15:28,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:15:28,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:15:28,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:15:28,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:15:28,488 INFO L87 Difference]: Start difference. First operand 24525 states and 29488 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 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 02:15:30,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:15:30,377 INFO L93 Difference]: Finished difference Result 49019 states and 58943 transitions. [2021-11-07 02:15:30,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:15:30,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-07 02:15:30,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:15:30,447 INFO L225 Difference]: With dead ends: 49019 [2021-11-07 02:15:30,447 INFO L226 Difference]: Without dead ends: 24525 [2021-11-07 02:15:30,476 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 104 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 02:15:30,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24525 states. [2021-11-07 02:15:32,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24525 to 24525. [2021-11-07 02:15:32,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24525 states, 24509 states have (on average 1.2024970419029744) internal successors, (29472), 24524 states have internal predecessors, (29472), 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 02:15:32,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24525 states to 24525 states and 29472 transitions. [2021-11-07 02:15:32,229 INFO L78 Accepts]: Start accepts. Automaton has 24525 states and 29472 transitions. Word has length 54 [2021-11-07 02:15:32,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:15:32,230 INFO L470 AbstractCegarLoop]: Abstraction has 24525 states and 29472 transitions. [2021-11-07 02:15:32,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 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 02:15:32,230 INFO L276 IsEmpty]: Start isEmpty. Operand 24525 states and 29472 transitions. [2021-11-07 02:15:32,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 02:15:32,232 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:15:32,232 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:15:32,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:15:32,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:15:32,448 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:15:32,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:15:32,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1159582936, now seen corresponding path program 1 times [2021-11-07 02:15:32,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:15:32,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378385093] [2021-11-07 02:15:32,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:15:32,451 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:15:32,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:15:32,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:15:32,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:15:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:15:36,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:15:36,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:15:37,150 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 02:15:37,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:15:37,557 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 02:15:37,557 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:15:37,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378385093] [2021-11-07 02:15:37,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378385093] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:15:37,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:15:37,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:15:37,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522350365] [2021-11-07 02:15:37,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:15:37,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:15:37,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:15:37,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:15:37,559 INFO L87 Difference]: Start difference. First operand 24525 states and 29472 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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 02:15:39,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:15:39,666 INFO L93 Difference]: Finished difference Result 49019 states and 58911 transitions. [2021-11-07 02:15:39,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:15:39,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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 55 [2021-11-07 02:15:39,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:15:39,720 INFO L225 Difference]: With dead ends: 49019 [2021-11-07 02:15:39,721 INFO L226 Difference]: Without dead ends: 24525 [2021-11-07 02:15:39,750 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 106 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 02:15:39,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24525 states. [2021-11-07 02:15:41,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24525 to 24525. [2021-11-07 02:15:41,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24525 states, 24509 states have (on average 1.201844220490432) internal successors, (29456), 24524 states have internal predecessors, (29456), 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 02:15:41,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24525 states to 24525 states and 29456 transitions. [2021-11-07 02:15:41,756 INFO L78 Accepts]: Start accepts. Automaton has 24525 states and 29456 transitions. Word has length 55 [2021-11-07 02:15:41,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:15:41,756 INFO L470 AbstractCegarLoop]: Abstraction has 24525 states and 29456 transitions. [2021-11-07 02:15:41,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 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 02:15:41,757 INFO L276 IsEmpty]: Start isEmpty. Operand 24525 states and 29456 transitions. [2021-11-07 02:15:41,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 02:15:41,758 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:15:41,758 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:15:41,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:15:41,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:15:41,959 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:15:41,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:15:41,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1587717294, now seen corresponding path program 1 times [2021-11-07 02:15:41,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:15:41,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653630523] [2021-11-07 02:15:41,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:15:41,963 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:15:41,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:15:41,964 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:15:41,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:15:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:15:46,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:15:46,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:15:46,652 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 02:15:46,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:15:47,020 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 02:15:47,020 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:15:47,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653630523] [2021-11-07 02:15:47,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653630523] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:15:47,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:15:47,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:15:47,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289861985] [2021-11-07 02:15:47,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:15:47,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:15:47,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:15:47,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:15:47,023 INFO L87 Difference]: Start difference. First operand 24525 states and 29456 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 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 02:15:49,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:15:49,057 INFO L93 Difference]: Finished difference Result 49019 states and 58879 transitions. [2021-11-07 02:15:49,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:15:49,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 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 56 [2021-11-07 02:15:49,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:15:49,108 INFO L225 Difference]: With dead ends: 49019 [2021-11-07 02:15:49,109 INFO L226 Difference]: Without dead ends: 24525 [2021-11-07 02:15:49,138 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 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 02:15:49,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24525 states. [2021-11-07 02:15:51,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24525 to 24525. [2021-11-07 02:15:51,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24525 states, 24509 states have (on average 1.2011913990778897) internal successors, (29440), 24524 states have internal predecessors, (29440), 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 02:15:51,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24525 states to 24525 states and 29440 transitions. [2021-11-07 02:15:51,148 INFO L78 Accepts]: Start accepts. Automaton has 24525 states and 29440 transitions. Word has length 56 [2021-11-07 02:15:51,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:15:51,148 INFO L470 AbstractCegarLoop]: Abstraction has 24525 states and 29440 transitions. [2021-11-07 02:15:51,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 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 02:15:51,149 INFO L276 IsEmpty]: Start isEmpty. Operand 24525 states and 29440 transitions. [2021-11-07 02:15:51,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 02:15:51,150 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:15:51,150 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:15:51,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:15:51,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:15:51,351 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:15:51,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:15:51,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1975129459, now seen corresponding path program 1 times [2021-11-07 02:15:51,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:15:51,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742801007] [2021-11-07 02:15:51,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:15:51,354 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:15:51,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:15:51,355 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:15:51,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:15:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:15:55,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:15:55,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:15:56,163 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 02:15:56,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:15:56,557 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 02:15:56,557 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:15:56,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742801007] [2021-11-07 02:15:56,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [742801007] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:15:56,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:15:56,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:15:56,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798888097] [2021-11-07 02:15:56,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:15:56,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:15:56,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:15:56,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:15:56,559 INFO L87 Difference]: Start difference. First operand 24525 states and 29440 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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 02:16:03,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:16:03,467 INFO L93 Difference]: Finished difference Result 68345 states and 81891 transitions. [2021-11-07 02:16:03,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:16:03,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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 57 [2021-11-07 02:16:03,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:16:03,542 INFO L225 Difference]: With dead ends: 68345 [2021-11-07 02:16:03,543 INFO L226 Difference]: Without dead ends: 43851 [2021-11-07 02:16:03,575 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 110 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 02:16:03,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43851 states. [2021-11-07 02:16:07,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43851 to 32721. [2021-11-07 02:16:07,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32721 states, 32705 states have (on average 1.1999694236355298) internal successors, (39245), 32720 states have internal predecessors, (39245), 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 02:16:07,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32721 states to 32721 states and 39245 transitions. [2021-11-07 02:16:07,228 INFO L78 Accepts]: Start accepts. Automaton has 32721 states and 39245 transitions. Word has length 57 [2021-11-07 02:16:07,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:16:07,229 INFO L470 AbstractCegarLoop]: Abstraction has 32721 states and 39245 transitions. [2021-11-07 02:16:07,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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 02:16:07,229 INFO L276 IsEmpty]: Start isEmpty. Operand 32721 states and 39245 transitions. [2021-11-07 02:16:07,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 02:16:07,230 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:07,230 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:16:07,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:16:07,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:16:07,440 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:16:07,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:07,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1100153641, now seen corresponding path program 1 times [2021-11-07 02:16:07,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:16:07,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927362652] [2021-11-07 02:16:07,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:07,443 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:16:07,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:16:07,444 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:16:07,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:16:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:16:11,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 1520 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:16:11,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:16:11,914 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 02:16:11,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:16:12,324 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 02:16:12,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:16:12,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927362652] [2021-11-07 02:16:12,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927362652] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:16:12,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:16:12,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:16:12,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048944584] [2021-11-07 02:16:12,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:16:12,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:16:12,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:16:12,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:16:12,327 INFO L87 Difference]: Start difference. First operand 32721 states and 39245 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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 02:16:15,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:16:15,559 INFO L93 Difference]: Finished difference Result 65411 states and 78457 transitions. [2021-11-07 02:16:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:16:15,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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 58 [2021-11-07 02:16:15,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:16:15,603 INFO L225 Difference]: With dead ends: 65411 [2021-11-07 02:16:15,603 INFO L226 Difference]: Without dead ends: 32721 [2021-11-07 02:16:15,635 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 112 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 02:16:15,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32721 states. [2021-11-07 02:16:18,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32721 to 32721. [2021-11-07 02:16:18,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32721 states, 32705 states have (on average 1.1994802018040056) internal successors, (39229), 32720 states have internal predecessors, (39229), 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 02:16:18,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32721 states to 32721 states and 39229 transitions. [2021-11-07 02:16:18,904 INFO L78 Accepts]: Start accepts. Automaton has 32721 states and 39229 transitions. Word has length 58 [2021-11-07 02:16:18,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:16:18,905 INFO L470 AbstractCegarLoop]: Abstraction has 32721 states and 39229 transitions. [2021-11-07 02:16:18,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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 02:16:18,905 INFO L276 IsEmpty]: Start isEmpty. Operand 32721 states and 39229 transitions. [2021-11-07 02:16:18,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 02:16:18,906 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:18,907 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:16:18,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:16:19,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:16:19,112 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-07 02:16:19,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:19,112 INFO L85 PathProgramCache]: Analyzing trace with hash -254143986, now seen corresponding path program 1 times [2021-11-07 02:16:19,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:16:19,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639600373] [2021-11-07 02:16:19,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:19,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:16:19,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:16:19,116 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:16:19,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c94f4cb-c16f-48a3-827b-a7f8490e2fe5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:16:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:16:23,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 1521 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:16:23,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:16:23,577 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 02:16:23,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:16:23,952 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 02:16:23,952 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:16:23,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639600373] [2021-11-07 02:16:23,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639600373] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:16:23,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:16:23,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:16:23,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119861294] [2021-11-07 02:16:23,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:16:23,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:16:23,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:16:23,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:16:23,954 INFO L87 Difference]: Start difference. First operand 32721 states and 39229 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 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 02:16:27,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:16:27,777 INFO L93 Difference]: Finished difference Result 65411 states and 78425 transitions. [2021-11-07 02:16:27,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:16:27,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 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 59 [2021-11-07 02:16:27,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:16:27,824 INFO L225 Difference]: With dead ends: 65411 [2021-11-07 02:16:27,824 INFO L226 Difference]: Without dead ends: 32721 [2021-11-07 02:16:27,853 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 114 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 02:16:27,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32721 states.