./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.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_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/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_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/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_80622581-8b88-40df-8b80-0850166a6804/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 bdbaacac7560cb4317515ea94aeb4341c343c1b3a78ea4f9610ad493958cf26e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:41:11,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:41:11,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:41:11,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:41:11,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:41:11,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:41:11,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:41:11,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:41:11,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:41:11,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:41:11,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:41:11,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:41:11,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:41:11,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:41:11,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:41:11,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:41:11,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:41:11,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:41:11,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:41:11,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:41:11,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:41:11,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:41:11,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:41:11,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:41:11,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:41:11,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:41:11,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:41:11,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:41:11,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:41:11,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:41:11,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:41:11,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:41:11,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:41:11,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:41:11,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:41:11,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:41:11,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:41:11,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:41:11,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:41:11,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:41:11,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:41:11,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:41:11,606 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:41:11,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:41:11,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:41:11,609 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:41:11,609 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:41:11,610 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:41:11,610 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:41:11,610 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:41:11,618 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:41:11,619 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:41:11,620 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:41:11,620 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:41:11,621 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:41:11,621 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:41:11,621 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:41:11,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:41:11,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:41:11,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:41:11,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:41:11,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:41:11,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:41:11,624 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:41:11,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:41:11,624 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:41:11,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:41:11,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:41:11,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:41:11,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:41:11,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:41:11,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:41:11,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:41:11,626 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:41:11,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:41:11,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:41:11,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:41:11,628 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:41:11,628 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_80622581-8b88-40df-8b80-0850166a6804/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdbaacac7560cb4317515ea94aeb4341c343c1b3a78ea4f9610ad493958cf26e [2021-11-07 01:41:11,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:41:11,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:41:11,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:41:12,000 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:41:12,001 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:41:12,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i [2021-11-07 01:41:12,096 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/data/aa53c3d09/4646523130ee4342a66ba7b46e545f39/FLAGff0f22fb5 [2021-11-07 01:41:13,135 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:41:13,136 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i [2021-11-07 01:41:13,206 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/data/aa53c3d09/4646523130ee4342a66ba7b46e545f39/FLAGff0f22fb5 [2021-11-07 01:41:13,418 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/data/aa53c3d09/4646523130ee4342a66ba7b46e545f39 [2021-11-07 01:41:13,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:41:13,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:41:13,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:41:13,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:41:13,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:41:13,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:41:13" (1/1) ... [2021-11-07 01:41:13,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207414b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:13, skipping insertion in model container [2021-11-07 01:41:13,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:41:13" (1/1) ... [2021-11-07 01:41:13,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:41:13,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:41:15,816 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 01:41:15,902 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 01:41:15,904 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 01:41:17,408 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387186,387199] [2021-11-07 01:41:17,411 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387355,387368] [2021-11-07 01:41:17,412 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387522,387535] [2021-11-07 01:41:17,412 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387690,387703] [2021-11-07 01:41:17,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:41:17,551 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 01:41:17,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3d5bab01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:17, skipping insertion in model container [2021-11-07 01:41:17,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:41:17,552 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:41:17,555 INFO L168 Benchmark]: Toolchain (without parser) took 4129.65 ms. Allocated memory was 100.7 MB in the beginning and 186.6 MB in the end (delta: 86.0 MB). Free memory was 50.7 MB in the beginning and 128.2 MB in the end (delta: -77.5 MB). Peak memory consumption was 38.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:41:17,556 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:41:17,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4124.34 ms. Allocated memory was 100.7 MB in the beginning and 186.6 MB in the end (delta: 86.0 MB). Free memory was 50.4 MB in the beginning and 128.2 MB in the end (delta: -77.8 MB). Peak memory consumption was 38.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:41:17,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 100.7 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4124.34 ms. Allocated memory was 100.7 MB in the beginning and 186.6 MB in the end (delta: 86.0 MB). Free memory was 50.4 MB in the beginning and 128.2 MB in the end (delta: -77.8 MB). Peak memory consumption was 38.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6978]: 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_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/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_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/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_80622581-8b88-40df-8b80-0850166a6804/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 bdbaacac7560cb4317515ea94aeb4341c343c1b3a78ea4f9610ad493958cf26e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:41:19,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:41:19,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:41:19,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:41:19,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:41:19,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:41:19,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:41:19,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:41:19,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:41:19,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:41:19,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:41:19,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:41:19,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:41:19,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:41:19,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:41:19,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:41:19,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:41:19,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:41:19,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:41:19,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:41:19,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:41:19,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:41:19,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:41:19,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:41:19,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:41:19,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:41:19,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:41:19,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:41:19,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:41:19,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:41:19,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:41:19,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:41:19,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:41:19,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:41:20,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:41:20,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:41:20,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:41:20,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:41:20,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:41:20,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:41:20,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:41:20,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:41:20,051 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:41:20,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:41:20,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:41:20,052 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:41:20,053 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:41:20,053 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:41:20,053 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:41:20,053 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:41:20,054 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:41:20,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:41:20,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:41:20,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:41:20,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:41:20,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:41:20,056 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:41:20,056 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:41:20,056 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:41:20,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:41:20,057 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:41:20,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:41:20,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:41:20,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:41:20,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:41:20,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:41:20,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:41:20,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:41:20,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:41:20,059 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:41:20,060 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:41:20,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:41:20,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:41:20,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:41:20,061 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_80622581-8b88-40df-8b80-0850166a6804/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdbaacac7560cb4317515ea94aeb4341c343c1b3a78ea4f9610ad493958cf26e [2021-11-07 01:41:20,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:41:20,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:41:20,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:41:20,524 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:41:20,525 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:41:20,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i [2021-11-07 01:41:20,608 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/data/ed7ff85b9/349c70ef71f944f7ba16218d32832969/FLAG4b7332af2 [2021-11-07 01:41:21,755 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:41:21,755 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i [2021-11-07 01:41:21,855 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/data/ed7ff85b9/349c70ef71f944f7ba16218d32832969/FLAG4b7332af2 [2021-11-07 01:41:22,001 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/data/ed7ff85b9/349c70ef71f944f7ba16218d32832969 [2021-11-07 01:41:22,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:41:22,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:41:22,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:41:22,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:41:22,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:41:22,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:41:22" (1/1) ... [2021-11-07 01:41:22,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6859fdae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:22, skipping insertion in model container [2021-11-07 01:41:22,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:41:22" (1/1) ... [2021-11-07 01:41:22,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:41:22,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:41:26,317 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387186,387199] [2021-11-07 01:41:26,320 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387355,387368] [2021-11-07 01:41:26,321 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387522,387535] [2021-11-07 01:41:26,321 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387690,387703] [2021-11-07 01:41:26,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:41:26,431 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:41:26,497 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:41:26,955 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387186,387199] [2021-11-07 01:41:26,955 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387355,387368] [2021-11-07 01:41:26,956 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387522,387535] [2021-11-07 01:41:26,957 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387690,387703] [2021-11-07 01:41:26,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:41:27,046 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:41:27,487 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387186,387199] [2021-11-07 01:41:27,488 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387355,387368] [2021-11-07 01:41:27,488 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387522,387535] [2021-11-07 01:41:27,489 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_80622581-8b88-40df-8b80-0850166a6804/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i[387690,387703] [2021-11-07 01:41:27,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:41:27,951 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:41:27,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:27 WrapperNode [2021-11-07 01:41:27,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:41:27,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:41:27,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:41:27,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:41:27,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:27" (1/1) ... [2021-11-07 01:41:28,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:27" (1/1) ... [2021-11-07 01:41:28,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:41:28,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:41:28,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:41:28,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:41:28,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:27" (1/1) ... [2021-11-07 01:41:28,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:27" (1/1) ... [2021-11-07 01:41:28,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:27" (1/1) ... [2021-11-07 01:41:28,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:27" (1/1) ... [2021-11-07 01:41:29,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:27" (1/1) ... [2021-11-07 01:41:29,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:27" (1/1) ... [2021-11-07 01:41:29,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:27" (1/1) ... [2021-11-07 01:41:29,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:41:29,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:41:29,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:41:29,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:41:29,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:27" (1/1) ... [2021-11-07 01:41:29,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:41:29,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:41:29,842 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:41:29,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:41:29,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:41:29,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:41:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:41:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:41:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:41:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:41:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:41:29,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:41:29,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:41:29,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:41:29,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:41:29,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:41:29,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:41:29,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:41:29,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:41:29,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:41:29,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:41:29,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:41:29,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:41:29,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:41:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:41:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:41:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:41:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:41:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:41:29,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:41:29,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:41:29,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:41:29,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:44:49,430 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-07 01:44:49,431 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-07 01:44:49,431 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 01:44:49,431 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-07 01:44:49,432 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 01:44:49,433 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 01:44:49,487 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:44:49,487 INFO L299 CfgBuilder]: Removed 5902 assume(true) statements. [2021-11-07 01:44:49,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:44:49 BoogieIcfgContainer [2021-11-07 01:44:49,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:44:49,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:44:49,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:44:49,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:44:49,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:41:22" (1/3) ... [2021-11-07 01:44:49,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2fb21c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:44:49, skipping insertion in model container [2021-11-07 01:44:49,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:41:27" (2/3) ... [2021-11-07 01:44:49,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2fb21c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:44:49, skipping insertion in model container [2021-11-07 01:44:49,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:44:49" (3/3) ... [2021-11-07 01:44:49,504 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-realtek-8139cp.cil.i [2021-11-07 01:44:49,511 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:44:49,511 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2021-11-07 01:44:49,607 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:44:49,615 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 01:44:49,616 INFO L340 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2021-11-07 01:44:49,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 4676 states, 4589 states have (on average 1.2933100893440836) internal successors, (5935), 4675 states have internal predecessors, (5935), 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 01:44:49,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 01:44:49,741 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:49,742 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, 1, 1, 1, 1] [2021-11-07 01:44:49,742 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:44:49,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:49,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1147573545, now seen corresponding path program 1 times [2021-11-07 01:44:49,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:44:49,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270794673] [2021-11-07 01:44:49,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:49,773 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:44:49,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:44:49,776 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:44:49,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:44:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:44:52,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:44:52,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:44:53,115 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 01:44:53,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:44:53,341 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 01:44:53,342 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:44:53,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270794673] [2021-11-07 01:44:53,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270794673] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:44:53,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:44:53,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:44:53,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590019244] [2021-11-07 01:44:53,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:44:53,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:44:53,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:44:53,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:44:53,382 INFO L87 Difference]: Start difference. First operand has 4676 states, 4589 states have (on average 1.2933100893440836) internal successors, (5935), 4675 states have internal predecessors, (5935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 01:44:56,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:44:56,868 INFO L93 Difference]: Finished difference Result 17883 states and 22692 transitions. [2021-11-07 01:44:56,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:44:56,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 63 [2021-11-07 01:44:56,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:44:56,989 INFO L225 Difference]: With dead ends: 17883 [2021-11-07 01:44:56,989 INFO L226 Difference]: Without dead ends: 12917 [2021-11-07 01:44:57,010 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 122 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 01:44:57,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12917 states. [2021-11-07 01:44:57,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12917 to 12689. [2021-11-07 01:44:57,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12689 states, 12602 states have (on average 1.2346452943977146) internal successors, (15559), 12688 states have internal predecessors, (15559), 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 01:44:57,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12689 states to 12689 states and 15559 transitions. [2021-11-07 01:44:57,738 INFO L78 Accepts]: Start accepts. Automaton has 12689 states and 15559 transitions. Word has length 63 [2021-11-07 01:44:57,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:44:57,739 INFO L470 AbstractCegarLoop]: Abstraction has 12689 states and 15559 transitions. [2021-11-07 01:44:57,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 01:44:57,739 INFO L276 IsEmpty]: Start isEmpty. Operand 12689 states and 15559 transitions. [2021-11-07 01:44:57,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 01:44:57,744 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:44:57,744 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:44:57,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:44:57,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:44:57,968 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:44:57,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:44:57,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1890311088, now seen corresponding path program 1 times [2021-11-07 01:44:57,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:44:57,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514299378] [2021-11-07 01:44:57,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:44:57,975 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:44:57,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:44:57,980 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:44:57,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:45:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:45:01,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 1496 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:45:01,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:01,424 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 01:45:01,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:45:01,670 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 01:45:01,670 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:45:01,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514299378] [2021-11-07 01:45:01,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514299378] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:45:01,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:45:01,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:45:01,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500367029] [2021-11-07 01:45:01,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:45:01,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:45:01,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:45:01,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:45:01,674 INFO L87 Difference]: Start difference. First operand 12689 states and 15559 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 01:45:06,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:45:06,225 INFO L93 Difference]: Finished difference Result 46182 states and 56508 transitions. [2021-11-07 01:45:06,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:45:06,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 66 [2021-11-07 01:45:06,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:45:06,427 INFO L225 Difference]: With dead ends: 46182 [2021-11-07 01:45:06,427 INFO L226 Difference]: Without dead ends: 33625 [2021-11-07 01:45:06,457 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 128 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 01:45:06,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33625 states. [2021-11-07 01:45:07,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33625 to 31819. [2021-11-07 01:45:08,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31819 states, 31732 states have (on average 1.235282995083827) internal successors, (39198), 31818 states have internal predecessors, (39198), 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 01:45:08,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31819 states to 31819 states and 39198 transitions. [2021-11-07 01:45:08,116 INFO L78 Accepts]: Start accepts. Automaton has 31819 states and 39198 transitions. Word has length 66 [2021-11-07 01:45:08,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:45:08,117 INFO L470 AbstractCegarLoop]: Abstraction has 31819 states and 39198 transitions. [2021-11-07 01:45:08,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 01:45:08,118 INFO L276 IsEmpty]: Start isEmpty. Operand 31819 states and 39198 transitions. [2021-11-07 01:45:08,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 01:45:08,126 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:45:08,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:45:08,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:45:08,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:45:08,340 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:45:08,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:45:08,341 INFO L85 PathProgramCache]: Analyzing trace with hash 732124952, now seen corresponding path program 1 times [2021-11-07 01:45:08,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:45:08,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [688637369] [2021-11-07 01:45:08,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:45:08,345 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:45:08,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:45:08,347 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:45:08,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:45:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:45:12,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 1477 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:45:12,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:12,427 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 01:45:12,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:45:12,674 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 01:45:12,675 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:45:12,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [688637369] [2021-11-07 01:45:12,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [688637369] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:45:12,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:45:12,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:45:12,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581844197] [2021-11-07 01:45:12,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:45:12,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:45:12,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:45:12,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:45:12,678 INFO L87 Difference]: Start difference. First operand 31819 states and 39198 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 01:45:17,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:45:17,081 INFO L93 Difference]: Finished difference Result 79589 states and 98006 transitions. [2021-11-07 01:45:17,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:45:17,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-07 01:45:17,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:45:17,278 INFO L225 Difference]: With dead ends: 79589 [2021-11-07 01:45:17,278 INFO L226 Difference]: Without dead ends: 47902 [2021-11-07 01:45:17,348 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:45:17,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47902 states. [2021-11-07 01:45:19,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47902 to 46921. [2021-11-07 01:45:19,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46921 states, 46834 states have (on average 1.2338472050219926) internal successors, (57786), 46920 states have internal predecessors, (57786), 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 01:45:19,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46921 states to 46921 states and 57786 transitions. [2021-11-07 01:45:19,804 INFO L78 Accepts]: Start accepts. Automaton has 46921 states and 57786 transitions. Word has length 69 [2021-11-07 01:45:19,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:45:19,805 INFO L470 AbstractCegarLoop]: Abstraction has 46921 states and 57786 transitions. [2021-11-07 01:45:19,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 01:45:19,806 INFO L276 IsEmpty]: Start isEmpty. Operand 46921 states and 57786 transitions. [2021-11-07 01:45:19,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 01:45:19,807 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:45:19,807 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:45:19,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:45:20,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:45:20,024 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr75ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:45:20,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:45:20,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1946669987, now seen corresponding path program 1 times [2021-11-07 01:45:20,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:45:20,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272664731] [2021-11-07 01:45:20,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:45:20,028 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:45:20,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:45:20,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:45:20,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:45:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:45:22,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1488 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:45:22,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:23,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:45:23,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:45:23,509 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 01:45:23,509 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:45:23,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272664731] [2021-11-07 01:45:23,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272664731] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:45:23,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:45:23,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:45:23,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070599927] [2021-11-07 01:45:23,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:45:23,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:45:23,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:45:23,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:45:23,512 INFO L87 Difference]: Start difference. First operand 46921 states and 57786 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 01:45:27,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:45:27,982 INFO L93 Difference]: Finished difference Result 101169 states and 124966 transitions. [2021-11-07 01:45:27,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:45:27,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 70 [2021-11-07 01:45:27,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:45:28,142 INFO L225 Difference]: With dead ends: 101169 [2021-11-07 01:45:28,142 INFO L226 Difference]: Without dead ends: 54380 [2021-11-07 01:45:28,385 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 136 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 01:45:28,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54380 states. [2021-11-07 01:45:30,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54380 to 54044. [2021-11-07 01:45:30,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54044 states, 53957 states have (on average 1.2389124673351002) internal successors, (66848), 54043 states have internal predecessors, (66848), 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 01:45:30,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54044 states to 54044 states and 66848 transitions. [2021-11-07 01:45:30,947 INFO L78 Accepts]: Start accepts. Automaton has 54044 states and 66848 transitions. Word has length 70 [2021-11-07 01:45:30,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:45:30,948 INFO L470 AbstractCegarLoop]: Abstraction has 54044 states and 66848 transitions. [2021-11-07 01:45:30,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 01:45:30,948 INFO L276 IsEmpty]: Start isEmpty. Operand 54044 states and 66848 transitions. [2021-11-07 01:45:30,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-07 01:45:30,950 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:45:30,951 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:45:31,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:45:31,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:45:31,176 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:45:31,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:45:31,177 INFO L85 PathProgramCache]: Analyzing trace with hash 295490258, now seen corresponding path program 1 times [2021-11-07 01:45:31,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:45:31,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395765606] [2021-11-07 01:45:31,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:45:31,180 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:45:31,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:45:31,181 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:45:31,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:45:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:45:34,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 1534 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:45:34,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:35,145 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:45:35,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:45:35,954 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:45:35,954 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:45:35,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395765606] [2021-11-07 01:45:35,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395765606] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:45:35,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:45:35,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:45:35,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723560123] [2021-11-07 01:45:35,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:45:35,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:45:35,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:45:35,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:45:35,957 INFO L87 Difference]: Start difference. First operand 54044 states and 66848 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 01:45:38,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:45:38,361 INFO L93 Difference]: Finished difference Result 54044 states and 66848 transitions. [2021-11-07 01:45:38,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:45:38,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 88 [2021-11-07 01:45:38,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:45:38,512 INFO L225 Difference]: With dead ends: 54044 [2021-11-07 01:45:38,513 INFO L226 Difference]: Without dead ends: 54040 [2021-11-07 01:45:38,530 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:45:38,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54040 states. [2021-11-07 01:45:41,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54040 to 54040. [2021-11-07 01:45:41,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54040 states, 53955 states have (on average 1.2388842553980168) internal successors, (66844), 54039 states have internal predecessors, (66844), 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 01:45:41,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54040 states to 54040 states and 66844 transitions. [2021-11-07 01:45:41,390 INFO L78 Accepts]: Start accepts. Automaton has 54040 states and 66844 transitions. Word has length 88 [2021-11-07 01:45:41,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:45:41,392 INFO L470 AbstractCegarLoop]: Abstraction has 54040 states and 66844 transitions. [2021-11-07 01:45:41,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 01:45:41,393 INFO L276 IsEmpty]: Start isEmpty. Operand 54040 states and 66844 transitions. [2021-11-07 01:45:41,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 01:45:41,402 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:45:41,402 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:45:41,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:45:41,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:45:41,616 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:45:41,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:45:41,617 INFO L85 PathProgramCache]: Analyzing trace with hash 498443381, now seen corresponding path program 1 times [2021-11-07 01:45:41,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:45:41,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876911898] [2021-11-07 01:45:41,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:45:41,620 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:45:41,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:45:41,621 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:45:41,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:45:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:45:44,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 1537 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:45:44,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:45,539 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:45:45,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:45:46,250 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:45:46,250 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:45:46,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876911898] [2021-11-07 01:45:46,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876911898] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:45:46,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:45:46,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:45:46,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392669006] [2021-11-07 01:45:46,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:45:46,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:45:46,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:45:46,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:45:46,253 INFO L87 Difference]: Start difference. First operand 54040 states and 66844 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 01:45:49,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:45:49,433 INFO L93 Difference]: Finished difference Result 54040 states and 66844 transitions. [2021-11-07 01:45:49,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:45:49,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 90 [2021-11-07 01:45:49,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:45:49,562 INFO L225 Difference]: With dead ends: 54040 [2021-11-07 01:45:49,563 INFO L226 Difference]: Without dead ends: 54036 [2021-11-07 01:45:49,579 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:45:49,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54036 states. [2021-11-07 01:45:52,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54036 to 54036. [2021-11-07 01:45:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54036 states, 53953 states have (on average 1.23885604136934) internal successors, (66840), 54035 states have internal predecessors, (66840), 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 01:45:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54036 states to 54036 states and 66840 transitions. [2021-11-07 01:45:52,491 INFO L78 Accepts]: Start accepts. Automaton has 54036 states and 66840 transitions. Word has length 90 [2021-11-07 01:45:52,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:45:52,492 INFO L470 AbstractCegarLoop]: Abstraction has 54036 states and 66840 transitions. [2021-11-07 01:45:52,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 01:45:52,492 INFO L276 IsEmpty]: Start isEmpty. Operand 54036 states and 66840 transitions. [2021-11-07 01:45:52,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 01:45:52,494 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:45:52,494 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:45:52,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:45:52,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:45:52,708 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:45:52,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:45:52,708 INFO L85 PathProgramCache]: Analyzing trace with hash -2032100712, now seen corresponding path program 1 times [2021-11-07 01:45:52,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:45:52,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277145996] [2021-11-07 01:45:52,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:45:52,711 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:45:52,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:45:52,712 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:45:52,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:45:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:45:55,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 1540 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:45:55,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:45:56,662 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:45:56,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:45:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:45:57,512 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:45:57,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277145996] [2021-11-07 01:45:57,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277145996] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:45:57,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:45:57,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:45:57,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264988275] [2021-11-07 01:45:57,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:45:57,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:45:57,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:45:57,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:45:57,516 INFO L87 Difference]: Start difference. First operand 54036 states and 66840 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 01:46:00,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:00,544 INFO L93 Difference]: Finished difference Result 54036 states and 66840 transitions. [2021-11-07 01:46:00,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:46:00,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 92 [2021-11-07 01:46:00,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:00,636 INFO L225 Difference]: With dead ends: 54036 [2021-11-07 01:46:00,636 INFO L226 Difference]: Without dead ends: 54032 [2021-11-07 01:46:00,647 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:46:00,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54032 states. [2021-11-07 01:46:03,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54032 to 54032. [2021-11-07 01:46:03,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54032 states, 53951 states have (on average 1.238827825248837) internal successors, (66836), 54031 states have internal predecessors, (66836), 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 01:46:03,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54032 states to 54032 states and 66836 transitions. [2021-11-07 01:46:03,271 INFO L78 Accepts]: Start accepts. Automaton has 54032 states and 66836 transitions. Word has length 92 [2021-11-07 01:46:03,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:03,272 INFO L470 AbstractCegarLoop]: Abstraction has 54032 states and 66836 transitions. [2021-11-07 01:46:03,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 01:46:03,272 INFO L276 IsEmpty]: Start isEmpty. Operand 54032 states and 66836 transitions. [2021-11-07 01:46:03,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 01:46:03,274 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:03,275 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:03,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 01:46:03,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:46:03,482 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:46:03,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:03,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1361483067, now seen corresponding path program 1 times [2021-11-07 01:46:03,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:03,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289552808] [2021-11-07 01:46:03,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:03,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:03,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:03,485 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:03,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:46:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:06,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 1543 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:46:06,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:07,255 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:46:07,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:08,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:46:08,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:08,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289552808] [2021-11-07 01:46:08,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289552808] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:08,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:46:08,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:46:08,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458519722] [2021-11-07 01:46:08,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:46:08,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:08,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:46:08,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:46:08,283 INFO L87 Difference]: Start difference. First operand 54032 states and 66836 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 01:46:11,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:11,241 INFO L93 Difference]: Finished difference Result 54032 states and 66836 transitions. [2021-11-07 01:46:11,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:46:11,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 94 [2021-11-07 01:46:11,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:11,334 INFO L225 Difference]: With dead ends: 54032 [2021-11-07 01:46:11,335 INFO L226 Difference]: Without dead ends: 54028 [2021-11-07 01:46:11,345 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:46:11,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54028 states. [2021-11-07 01:46:13,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54028 to 54028. [2021-11-07 01:46:14,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54028 states, 53949 states have (on average 1.238799607036275) internal successors, (66832), 54027 states have internal predecessors, (66832), 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 01:46:14,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54028 states to 54028 states and 66832 transitions. [2021-11-07 01:46:14,141 INFO L78 Accepts]: Start accepts. Automaton has 54028 states and 66832 transitions. Word has length 94 [2021-11-07 01:46:14,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:46:14,142 INFO L470 AbstractCegarLoop]: Abstraction has 54028 states and 66832 transitions. [2021-11-07 01:46:14,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 01:46:14,142 INFO L276 IsEmpty]: Start isEmpty. Operand 54028 states and 66832 transitions. [2021-11-07 01:46:14,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 01:46:14,145 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:46:14,145 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:14,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:46:14,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:46:14,360 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 84 more)] === [2021-11-07 01:46:14,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:46:14,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1579649954, now seen corresponding path program 1 times [2021-11-07 01:46:14,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:46:14,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14499003] [2021-11-07 01:46:14,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:46:14,363 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:46:14,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:46:14,364 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:46:14,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80622581-8b88-40df-8b80-0850166a6804/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:46:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:46:17,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 1546 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:46:17,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:46:18,343 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:46:18,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:46:19,231 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 01:46:19,231 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:46:19,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14499003] [2021-11-07 01:46:19,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14499003] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:46:19,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:46:19,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:46:19,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150125394] [2021-11-07 01:46:19,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:46:19,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:46:19,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:46:19,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:46:19,234 INFO L87 Difference]: Start difference. First operand 54028 states and 66832 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 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 01:46:22,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:46:22,437 INFO L93 Difference]: Finished difference Result 54028 states and 66832 transitions. [2021-11-07 01:46:22,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:46:22,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 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 96 [2021-11-07 01:46:22,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:46:22,536 INFO L225 Difference]: With dead ends: 54028 [2021-11-07 01:46:22,537 INFO L226 Difference]: Without dead ends: 54024 [2021-11-07 01:46:22,547 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:46:22,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54024 states.