./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-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH --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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:54:46,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:54:46,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:54:46,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:54:46,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:54:46,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:54:46,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:54:46,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:54:46,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:54:46,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:54:46,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:54:46,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:54:46,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:54:46,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:54:46,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:54:46,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:54:46,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:54:46,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:54:46,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:54:46,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:54:47,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:54:47,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:54:47,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:54:47,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:54:47,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:54:47,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:54:47,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:54:47,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:54:47,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:54:47,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:54:47,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:54:47,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:54:47,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:54:47,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:54:47,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:54:47,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:54:47,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:54:47,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:54:47,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:54:47,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:54:47,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:54:47,029 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:54:47,075 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:54:47,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:54:47,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:54:47,077 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:54:47,077 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:54:47,078 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:54:47,078 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:54:47,078 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:54:47,078 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:54:47,078 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:54:47,078 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:54:47,079 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:54:47,079 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:54:47,079 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:54:47,079 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:54:47,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:54:47,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:54:47,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:54:47,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:54:47,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:54:47,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:54:47,081 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:54:47,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:54:47,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:54:47,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:54:47,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:54:47,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:54:47,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:47,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:54:47,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:54:47,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:54:47,083 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:54:47,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:54:47,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:54:47,084 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:54:47,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:54:47,084 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2021-11-03 03:54:47,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:54:47,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:54:47,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:54:47,393 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:54:47,393 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:54:47,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-03 03:54:47,460 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/data/6f51e3474/6941d300ab894abca765f7687f51c096/FLAGce50248ed [2021-11-03 03:54:48,310 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:54:48,311 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-03 03:54:48,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/data/6f51e3474/6941d300ab894abca765f7687f51c096/FLAGce50248ed [2021-11-03 03:54:48,783 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/data/6f51e3474/6941d300ab894abca765f7687f51c096 [2021-11-03 03:54:48,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:54:48,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:54:48,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:48,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:54:48,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:54:48,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:48" (1/1) ... [2021-11-03 03:54:48,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d13ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:48, skipping insertion in model container [2021-11-03 03:54:48,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:48" (1/1) ... [2021-11-03 03:54:48,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:54:48,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:54:50,606 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:54:50,607 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:54:50,747 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 03:54:51,713 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2021-11-03 03:54:51,716 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2021-11-03 03:54:51,717 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2021-11-03 03:54:51,717 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2021-11-03 03:54:51,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:51,776 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) [2021-11-03 03:54:51,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3be5cdd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:51, skipping insertion in model container [2021-11-03 03:54:51,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:51,777 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 03:54:51,779 INFO L168 Benchmark]: Toolchain (without parser) took 2991.27 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 64.1 MB in the beginning and 75.7 MB in the end (delta: -11.6 MB). Peak memory consumption was 52.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:51,780 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory was 66.3 MB in the beginning and 66.3 MB in the end (delta: 32.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:54:51,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2987.55 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 63.8 MB in the beginning and 75.7 MB in the end (delta: -11.9 MB). Peak memory consumption was 50.0 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:51,784 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory was 66.3 MB in the beginning and 66.3 MB in the end (delta: 32.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2987.55 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 63.8 MB in the beginning and 75.7 MB in the end (delta: -11.9 MB). Peak memory consumption was 50.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6042]: 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH --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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:54:53,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:54:53,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:54:54,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:54:54,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:54:54,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:54:54,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:54:54,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:54:54,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:54:54,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:54:54,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:54:54,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:54:54,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:54:54,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:54:54,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:54:54,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:54:54,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:54:54,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:54:54,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:54:54,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:54:54,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:54:54,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:54:54,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:54:54,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:54:54,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:54:54,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:54:54,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:54:54,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:54:54,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:54:54,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:54:54,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:54:54,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:54:54,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:54:54,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:54:54,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:54:54,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:54:54,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:54:54,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:54:54,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:54:54,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:54:54,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:54:54,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:54:54,166 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:54:54,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:54:54,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:54:54,168 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:54:54,168 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:54:54,168 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:54:54,168 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:54:54,168 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:54:54,169 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:54:54,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:54:54,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:54:54,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:54:54,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:54:54,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:54:54,172 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:54:54,172 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:54:54,172 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:54:54,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:54:54,173 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:54:54,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:54:54,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:54:54,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:54:54,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:54:54,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:54,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:54:54,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:54:54,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:54:54,174 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:54:54,175 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:54:54,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:54:54,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:54:54,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:54:54,175 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2021-11-03 03:54:54,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:54:54,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:54:54,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:54:54,575 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:54:54,576 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:54:54,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-03 03:54:54,645 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/data/9a40534df/6df20a4ccb4f40fc8fcfb39da152f7a9/FLAG76aecde69 [2021-11-03 03:54:55,657 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:54:55,658 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-03 03:54:55,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/data/9a40534df/6df20a4ccb4f40fc8fcfb39da152f7a9/FLAG76aecde69 [2021-11-03 03:54:56,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/data/9a40534df/6df20a4ccb4f40fc8fcfb39da152f7a9 [2021-11-03 03:54:56,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:54:56,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:54:56,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:56,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:54:56,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:54:56,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:56" (1/1) ... [2021-11-03 03:54:56,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@513a2b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:56, skipping insertion in model container [2021-11-03 03:54:56,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:56" (1/1) ... [2021-11-03 03:54:56,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:54:56,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:54:59,052 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2021-11-03 03:54:59,057 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2021-11-03 03:54:59,058 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2021-11-03 03:54:59,058 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2021-11-03 03:54:59,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:59,157 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:54:59,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:54:59,575 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2021-11-03 03:54:59,576 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2021-11-03 03:54:59,577 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2021-11-03 03:54:59,577 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2021-11-03 03:54:59,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:59,618 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:55:00,065 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2021-11-03 03:55:00,066 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2021-11-03 03:55:00,067 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2021-11-03 03:55:00,067 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_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2021-11-03 03:55:00,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:55:00,318 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:55:00,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:00 WrapperNode [2021-11-03 03:55:00,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:55:00,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:55:00,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:55:00,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:55:00,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:00" (1/1) ... [2021-11-03 03:55:00,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:00" (1/1) ... [2021-11-03 03:55:01,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:55:01,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:55:01,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:55:01,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:55:01,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:00" (1/1) ... [2021-11-03 03:55:01,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:00" (1/1) ... [2021-11-03 03:55:01,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:00" (1/1) ... [2021-11-03 03:55:01,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:00" (1/1) ... [2021-11-03 03:55:01,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:00" (1/1) ... [2021-11-03 03:55:01,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:00" (1/1) ... [2021-11-03 03:55:02,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:00" (1/1) ... [2021-11-03 03:55:02,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:55:02,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:55:02,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:55:02,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:55:02,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:00" (1/1) ... [2021-11-03 03:55:02,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:55:02,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:55:02,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:55:02,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:55:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:55:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 03:55:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:55:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:55:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:55:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:55:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:55:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 03:55:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 03:55:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 03:55:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 03:55:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:55:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:55:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:55:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:55:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 03:55:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 03:55:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 03:55:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 03:55:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:55:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:55:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:55:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:55:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 03:55:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 03:55:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:55:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 03:55:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 03:55:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 03:55:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 03:55:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-03 03:56:55,158 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 03:56:55,158 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 03:56:55,159 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 03:56:55,159 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 03:56:55,160 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 03:56:55,160 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 03:56:55,214 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:56:55,214 INFO L299 CfgBuilder]: Removed 5020 assume(true) statements. [2021-11-03 03:56:55,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:56:55 BoogieIcfgContainer [2021-11-03 03:56:55,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:56:55,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:56:55,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:56:55,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:56:55,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:54:56" (1/3) ... [2021-11-03 03:56:55,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9c2dc94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:56:55, skipping insertion in model container [2021-11-03 03:56:55,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:55:00" (2/3) ... [2021-11-03 03:56:55,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9c2dc94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:56:55, skipping insertion in model container [2021-11-03 03:56:55,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:56:55" (3/3) ... [2021-11-03 03:56:55,229 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-03 03:56:55,234 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:56:55,235 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2021-11-03 03:56:55,304 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:56:55,309 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 [2021-11-03 03:56:55,310 INFO L340 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2021-11-03 03:56:55,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 4190 states, 4146 states have (on average 1.307284129281235) internal successors, (5420), 4189 states have internal predecessors, (5420), 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) [2021-11-03 03:56:55,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 03:56:55,397 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:56:55,397 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] [2021-11-03 03:56:55,398 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 03:56:55,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:56:55,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1114883933, now seen corresponding path program 1 times [2021-11-03 03:56:55,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:56:55,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497858510] [2021-11-03 03:56:55,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:56:55,420 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:56:55,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:56:55,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:56:55,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:56:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:56:56,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:56:56,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:56:57,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:56:57,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:56:57,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:56:57,572 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:56:57,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497858510] [2021-11-03 03:56:57,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497858510] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:56:57,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:56:57,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:56:57,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229410109] [2021-11-03 03:56:57,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:56:57,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:56:57,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:56:57,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:56:57,622 INFO L87 Difference]: Start difference. First operand has 4190 states, 4146 states have (on average 1.307284129281235) internal successors, (5420), 4189 states have internal predecessors, (5420), 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 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:00,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:00,821 INFO L93 Difference]: Finished difference Result 15902 states and 20580 transitions. [2021-11-03 03:57:00,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:57:00,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-03 03:57:00,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:00,906 INFO L225 Difference]: With dead ends: 15902 [2021-11-03 03:57:00,906 INFO L226 Difference]: Without dead ends: 11449 [2021-11-03 03:57:00,923 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:57:00,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2021-11-03 03:57:01,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 11417. [2021-11-03 03:57:01,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11417 states, 11373 states have (on average 1.2524399894486942) internal successors, (14244), 11416 states have internal predecessors, (14244), 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) [2021-11-03 03:57:01,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11417 states to 11417 states and 14244 transitions. [2021-11-03 03:57:01,702 INFO L78 Accepts]: Start accepts. Automaton has 11417 states and 14244 transitions. Word has length 42 [2021-11-03 03:57:01,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:01,704 INFO L470 AbstractCegarLoop]: Abstraction has 11417 states and 14244 transitions. [2021-11-03 03:57:01,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:01,705 INFO L276 IsEmpty]: Start isEmpty. Operand 11417 states and 14244 transitions. [2021-11-03 03:57:01,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 03:57:01,714 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:01,714 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] [2021-11-03 03:57:01,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:01,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:01,932 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 03:57:01,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:01,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1435015324, now seen corresponding path program 1 times [2021-11-03 03:57:01,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:01,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187010398] [2021-11-03 03:57:01,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:01,935 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:01,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:01,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:01,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:57:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:03,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:57:03,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:03,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:03,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:04,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:04,044 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:04,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187010398] [2021-11-03 03:57:04,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187010398] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:04,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:04,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:57:04,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171519964] [2021-11-03 03:57:04,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:57:04,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:04,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:57:04,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:57:04,048 INFO L87 Difference]: Start difference. First operand 11417 states and 14244 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2021-11-03 03:57:08,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:08,683 INFO L93 Difference]: Finished difference Result 39807 states and 49544 transitions. [2021-11-03 03:57:08,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:57:08,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 42 [2021-11-03 03:57:08,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:08,850 INFO L225 Difference]: With dead ends: 39807 [2021-11-03 03:57:08,851 INFO L226 Difference]: Without dead ends: 28458 [2021-11-03 03:57:08,879 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:57:08,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28458 states. [2021-11-03 03:57:10,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28458 to 22598. [2021-11-03 03:57:10,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22598 states, 22554 states have (on average 1.2492240844196152) internal successors, (28175), 22597 states have internal predecessors, (28175), 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) [2021-11-03 03:57:10,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22598 states to 22598 states and 28175 transitions. [2021-11-03 03:57:10,220 INFO L78 Accepts]: Start accepts. Automaton has 22598 states and 28175 transitions. Word has length 42 [2021-11-03 03:57:10,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:10,220 INFO L470 AbstractCegarLoop]: Abstraction has 22598 states and 28175 transitions. [2021-11-03 03:57:10,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2021-11-03 03:57:10,221 INFO L276 IsEmpty]: Start isEmpty. Operand 22598 states and 28175 transitions. [2021-11-03 03:57:10,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-03 03:57:10,224 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:10,225 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:57:10,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:10,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:10,442 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 03:57:10,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:10,443 INFO L85 PathProgramCache]: Analyzing trace with hash -234934328, now seen corresponding path program 1 times [2021-11-03 03:57:10,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:10,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776999833] [2021-11-03 03:57:10,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:10,445 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:10,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:10,448 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:10,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:57:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:11,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:57:11,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:12,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:12,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:12,843 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:12,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776999833] [2021-11-03 03:57:12,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776999833] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:12,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:12,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:57:12,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914384207] [2021-11-03 03:57:12,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:57:12,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:12,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:57:12,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:57:12,846 INFO L87 Difference]: Start difference. First operand 22598 states and 28175 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:17,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:17,026 INFO L93 Difference]: Finished difference Result 50290 states and 63114 transitions. [2021-11-03 03:57:17,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:57:17,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-03 03:57:17,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:17,109 INFO L225 Difference]: With dead ends: 50290 [2021-11-03 03:57:17,109 INFO L226 Difference]: Without dead ends: 27760 [2021-11-03 03:57:17,149 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:57:17,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27760 states. [2021-11-03 03:57:18,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27760 to 27588. [2021-11-03 03:57:18,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27588 states, 27544 states have (on average 1.2600566366540809) internal successors, (34707), 27587 states have internal predecessors, (34707), 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) [2021-11-03 03:57:18,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27588 states to 27588 states and 34707 transitions. [2021-11-03 03:57:18,516 INFO L78 Accepts]: Start accepts. Automaton has 27588 states and 34707 transitions. Word has length 57 [2021-11-03 03:57:18,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:18,516 INFO L470 AbstractCegarLoop]: Abstraction has 27588 states and 34707 transitions. [2021-11-03 03:57:18,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:18,518 INFO L276 IsEmpty]: Start isEmpty. Operand 27588 states and 34707 transitions. [2021-11-03 03:57:18,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 03:57:18,519 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:18,520 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] [2021-11-03 03:57:18,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:18,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:18,744 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 03:57:18,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:18,744 INFO L85 PathProgramCache]: Analyzing trace with hash -465593213, now seen corresponding path program 1 times [2021-11-03 03:57:18,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:18,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282938908] [2021-11-03 03:57:18,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:18,747 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:18,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:18,751 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:18,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:57:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:20,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:57:20,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:20,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:20,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:21,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:21,049 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:21,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282938908] [2021-11-03 03:57:21,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282938908] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:21,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:21,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 03:57:21,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298102196] [2021-11-03 03:57:21,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:57:21,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:21,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:57:21,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:57:21,052 INFO L87 Difference]: Start difference. First operand 27588 states and 34707 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:25,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:25,007 INFO L93 Difference]: Finished difference Result 68521 states and 86178 transitions. [2021-11-03 03:57:25,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:57:25,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-03 03:57:25,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:25,141 INFO L225 Difference]: With dead ends: 68521 [2021-11-03 03:57:25,141 INFO L226 Difference]: Without dead ends: 41001 [2021-11-03 03:57:25,186 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:57:25,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41001 states. [2021-11-03 03:57:26,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41001 to 40269. [2021-11-03 03:57:26,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40269 states, 40225 states have (on average 1.2578993163455563) internal successors, (50599), 40268 states have internal predecessors, (50599), 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) [2021-11-03 03:57:26,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40269 states to 40269 states and 50599 transitions. [2021-11-03 03:57:26,909 INFO L78 Accepts]: Start accepts. Automaton has 40269 states and 50599 transitions. Word has length 61 [2021-11-03 03:57:26,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:26,910 INFO L470 AbstractCegarLoop]: Abstraction has 40269 states and 50599 transitions. [2021-11-03 03:57:26,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:57:26,910 INFO L276 IsEmpty]: Start isEmpty. Operand 40269 states and 50599 transitions. [2021-11-03 03:57:26,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 03:57:26,913 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:26,914 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] [2021-11-03 03:57:26,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:27,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:27,128 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 03:57:27,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:27,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1655891513, now seen corresponding path program 1 times [2021-11-03 03:57:27,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:27,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273700678] [2021-11-03 03:57:27,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:27,131 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:27,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:27,133 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:27,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:57:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:28,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:57:28,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:28,842 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:28,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:29,165 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:57:29,165 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:29,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273700678] [2021-11-03 03:57:29,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273700678] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:29,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:29,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:57:29,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898383416] [2021-11-03 03:57:29,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:57:29,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:29,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:57:29,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:57:29,167 INFO L87 Difference]: Start difference. First operand 40269 states and 50599 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2021-11-03 03:57:34,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:34,041 INFO L93 Difference]: Finished difference Result 119797 states and 150654 transitions. [2021-11-03 03:57:34,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:57:34,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 72 [2021-11-03 03:57:34,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:34,201 INFO L225 Difference]: With dead ends: 119797 [2021-11-03 03:57:34,202 INFO L226 Difference]: Without dead ends: 79659 [2021-11-03 03:57:34,259 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:57:34,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79659 states. [2021-11-03 03:57:37,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79659 to 79627. [2021-11-03 03:57:37,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79627 states, 79583 states have (on average 1.2577937499214655) internal successors, (100099), 79626 states have internal predecessors, (100099), 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) [2021-11-03 03:57:37,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79627 states to 79627 states and 100099 transitions. [2021-11-03 03:57:37,489 INFO L78 Accepts]: Start accepts. Automaton has 79627 states and 100099 transitions. Word has length 72 [2021-11-03 03:57:37,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:37,489 INFO L470 AbstractCegarLoop]: Abstraction has 79627 states and 100099 transitions. [2021-11-03 03:57:37,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2021-11-03 03:57:37,490 INFO L276 IsEmpty]: Start isEmpty. Operand 79627 states and 100099 transitions. [2021-11-03 03:57:37,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 03:57:37,493 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:37,494 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:57:37,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:37,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:37,700 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 03:57:37,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:37,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1803764864, now seen corresponding path program 1 times [2021-11-03 03:57:37,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:37,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569203157] [2021-11-03 03:57:37,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:37,704 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:37,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:37,705 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:37,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:57:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:39,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:57:39,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:40,235 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 03:57:40,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:41,501 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 03:57:41,501 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:41,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569203157] [2021-11-03 03:57:41,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [569203157] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:41,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:41,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:57:41,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914880274] [2021-11-03 03:57:41,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:57:41,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:41,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:57:41,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:57:41,504 INFO L87 Difference]: Start difference. First operand 79627 states and 100099 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) [2021-11-03 03:57:45,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:45,650 INFO L93 Difference]: Finished difference Result 79627 states and 100099 transitions. [2021-11-03 03:57:45,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:57:45,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 72 [2021-11-03 03:57:45,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:45,906 INFO L225 Difference]: With dead ends: 79627 [2021-11-03 03:57:45,907 INFO L226 Difference]: Without dead ends: 79621 [2021-11-03 03:57:45,930 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:57:46,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79621 states. [2021-11-03 03:57:49,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79621 to 79621. [2021-11-03 03:57:49,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79621 states, 79580 states have (on average 1.2577657702940437) internal successors, (100093), 79620 states have internal predecessors, (100093), 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) [2021-11-03 03:57:49,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79621 states to 79621 states and 100093 transitions. [2021-11-03 03:57:49,582 INFO L78 Accepts]: Start accepts. Automaton has 79621 states and 100093 transitions. Word has length 72 [2021-11-03 03:57:49,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:49,584 INFO L470 AbstractCegarLoop]: Abstraction has 79621 states and 100093 transitions. [2021-11-03 03:57:49,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) [2021-11-03 03:57:49,584 INFO L276 IsEmpty]: Start isEmpty. Operand 79621 states and 100093 transitions. [2021-11-03 03:57:49,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 03:57:49,587 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:49,587 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:57:49,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:49,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:49,811 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 03:57:49,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:49,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1748607325, now seen corresponding path program 1 times [2021-11-03 03:57:49,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:49,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737374821] [2021-11-03 03:57:49,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:49,813 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:49,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:49,814 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:49,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:57:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:51,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:57:51,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:52,446 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 03:57:52,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:53,531 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 03:57:53,531 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:53,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737374821] [2021-11-03 03:57:53,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737374821] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:53,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:53,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:57:53,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492549398] [2021-11-03 03:57:53,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:57:53,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:53,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:57:53,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:57:53,536 INFO L87 Difference]: Start difference. First operand 79621 states and 100093 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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) [2021-11-03 03:57:57,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:57,735 INFO L93 Difference]: Finished difference Result 79621 states and 100093 transitions. [2021-11-03 03:57:57,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:57:57,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 74 [2021-11-03 03:57:57,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:57,859 INFO L225 Difference]: With dead ends: 79621 [2021-11-03 03:57:57,859 INFO L226 Difference]: Without dead ends: 79615 [2021-11-03 03:57:57,874 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:57:57,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79615 states. [2021-11-03 03:58:01,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79615 to 79615. [2021-11-03 03:58:01,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79615 states, 79577 states have (on average 1.2577377885569951) internal successors, (100087), 79614 states have internal predecessors, (100087), 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) [2021-11-03 03:58:01,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79615 states to 79615 states and 100087 transitions. [2021-11-03 03:58:01,590 INFO L78 Accepts]: Start accepts. Automaton has 79615 states and 100087 transitions. Word has length 74 [2021-11-03 03:58:01,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:58:01,590 INFO L470 AbstractCegarLoop]: Abstraction has 79615 states and 100087 transitions. [2021-11-03 03:58:01,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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) [2021-11-03 03:58:01,590 INFO L276 IsEmpty]: Start isEmpty. Operand 79615 states and 100087 transitions. [2021-11-03 03:58:01,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-03 03:58:01,592 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:58:01,592 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:58:01,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-03 03:58:01,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:58:01,796 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 03:58:01,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:58:01,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1079280314, now seen corresponding path program 1 times [2021-11-03 03:58:01,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:58:01,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709677927] [2021-11-03 03:58:01,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:58:01,798 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:58:01,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:58:01,799 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:58:01,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ffb7e1a-3e78-43bf-8b80-3d1f73bfca19/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 03:58:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:03,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:58:03,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:58:04,265 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 03:58:04,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:58:05,303 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 03:58:05,304 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:58:05,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709677927] [2021-11-03 03:58:05,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709677927] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:58:05,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:58:05,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:58:05,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137922425] [2021-11-03 03:58:05,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:58:05,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:58:05,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:58:05,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:58:05,305 INFO L87 Difference]: Start difference. First operand 79615 states and 100087 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 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)