./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:07:28,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:07:28,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:07:28,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:07:28,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:07:28,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:07:28,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:07:28,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:07:28,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:07:28,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:07:28,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:07:28,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:07:28,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:07:28,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:07:28,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:07:28,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:07:28,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:07:28,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:07:28,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:07:28,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:07:28,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:07:28,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:07:28,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:07:28,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:07:28,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:07:28,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:07:28,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:07:28,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:07:28,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:07:28,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:07:28,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:07:28,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:07:28,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:07:28,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:07:28,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:07:28,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:07:28,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:07:28,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:07:28,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:07:28,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:07:28,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:07:28,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:07:28,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:07:28,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:07:28,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:07:28,957 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:07:28,958 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:07:28,958 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:07:28,958 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:07:28,958 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:07:28,959 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:07:28,959 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:07:28,966 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:07:28,966 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:07:28,967 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:07:28,967 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:07:28,967 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:07:28,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:07:28,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:07:28,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:07:28,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:07:28,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:07:28,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:07:28,970 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:07:28,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:07:28,970 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:07:28,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:07:28,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:07:28,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:07:28,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:07:28,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:07:28,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:07:28,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:07:28,974 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:07:28,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:07:28,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:07:28,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:07:28,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:07:28,975 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_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 [2021-11-07 02:07:29,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:07:29,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:07:29,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:07:29,267 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:07:29,268 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:07:29,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-07 02:07:29,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/data/e9aa2678a/4b00983aec5247b4b4e9e4b83a4a4c0a/FLAG2d65a05a7 [2021-11-07 02:07:30,343 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:07:30,344 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-07 02:07:30,428 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/data/e9aa2678a/4b00983aec5247b4b4e9e4b83a4a4c0a/FLAG2d65a05a7 [2021-11-07 02:07:30,695 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/data/e9aa2678a/4b00983aec5247b4b4e9e4b83a4a4c0a [2021-11-07 02:07:30,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:07:30,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:07:30,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:07:30,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:07:30,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:07:30,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:30" (1/1) ... [2021-11-07 02:07:30,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad0485f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:30, skipping insertion in model container [2021-11-07 02:07:30,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:30" (1/1) ... [2021-11-07 02:07:30,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:07:30,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:07:34,317 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:07:34,388 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:07:34,389 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:07:34,507 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:07:34,603 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:07:36,170 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-07 02:07:36,173 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-07 02:07:36,174 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-07 02:07:36,175 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-07 02:07:36,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:07:36,342 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 02:07:36,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@70d3c685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:36, skipping insertion in model container [2021-11-07 02:07:36,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:07:36,343 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:07:36,346 INFO L168 Benchmark]: Toolchain (without parser) took 5644.88 ms. Allocated memory was 100.7 MB in the beginning and 201.3 MB in the end (delta: 100.7 MB). Free memory was 61.5 MB in the beginning and 141.1 MB in the end (delta: -79.6 MB). Peak memory consumption was 62.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:07:36,346 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 100.7 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:07:36,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5639.92 ms. Allocated memory was 100.7 MB in the beginning and 201.3 MB in the end (delta: 100.7 MB). Free memory was 61.2 MB in the beginning and 141.1 MB in the end (delta: -79.9 MB). Peak memory consumption was 62.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:07:36,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 100.7 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5639.92 ms. Allocated memory was 100.7 MB in the beginning and 201.3 MB in the end (delta: 100.7 MB). Free memory was 61.2 MB in the beginning and 141.1 MB in the end (delta: -79.9 MB). Peak memory consumption was 62.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7050]: 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_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:07:38,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:07:38,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:07:38,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:07:38,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:07:38,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:07:38,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:07:38,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:07:38,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:07:38,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:07:38,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:07:38,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:07:38,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:07:38,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:07:38,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:07:38,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:07:38,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:07:38,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:07:38,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:07:38,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:07:38,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:07:38,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:07:38,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:07:38,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:07:38,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:07:38,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:07:38,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:07:38,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:07:38,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:07:38,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:07:38,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:07:38,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:07:38,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:07:38,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:07:38,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:07:38,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:07:38,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:07:38,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:07:38,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:07:38,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:07:38,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:07:38,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:07:38,865 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:07:38,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:07:38,868 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:07:38,869 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:07:38,869 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:07:38,869 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:07:38,869 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:07:38,870 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:07:38,870 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:07:38,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:07:38,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:07:38,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:07:38,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:07:38,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:07:38,873 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:07:38,874 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:07:38,874 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:07:38,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:07:38,874 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:07:38,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:07:38,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:07:38,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:07:38,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:07:38,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:07:38,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:07:38,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:07:38,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:07:38,877 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:07:38,877 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:07:38,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:07:38,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:07:38,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:07:38,878 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_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 [2021-11-07 02:07:39,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:07:39,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:07:39,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:07:39,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:07:39,373 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:07:39,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-07 02:07:39,452 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/data/2f4c4bba6/6086e57144344d50ac40ca0146e95069/FLAGe91ced3a9 [2021-11-07 02:07:40,661 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:07:40,663 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-07 02:07:40,729 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/data/2f4c4bba6/6086e57144344d50ac40ca0146e95069/FLAGe91ced3a9 [2021-11-07 02:07:40,877 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/data/2f4c4bba6/6086e57144344d50ac40ca0146e95069 [2021-11-07 02:07:40,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:07:40,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:07:40,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:07:40,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:07:40,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:07:40,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:40" (1/1) ... [2021-11-07 02:07:40,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45f735b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:40, skipping insertion in model container [2021-11-07 02:07:40,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:07:40" (1/1) ... [2021-11-07 02:07:40,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:07:41,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:07:46,211 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-07 02:07:46,214 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-07 02:07:46,215 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-07 02:07:46,216 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-07 02:07:46,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:07:46,356 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:07:46,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:07:46,932 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-07 02:07:46,932 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-07 02:07:46,933 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-07 02:07:46,933 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-07 02:07:46,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:07:47,012 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:07:47,770 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-07 02:07:47,771 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-07 02:07:47,772 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-07 02:07:47,772 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_4d273ac6-409a-4865-aa4d-a03a40b45035/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-07 02:07:47,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:07:48,239 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:07:48,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:48 WrapperNode [2021-11-07 02:07:48,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:07:48,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:07:48,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:07:48,243 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:07:48,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:48" (1/1) ... [2021-11-07 02:07:48,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:48" (1/1) ... [2021-11-07 02:07:49,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:07:49,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:07:49,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:07:49,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:07:49,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:48" (1/1) ... [2021-11-07 02:07:49,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:48" (1/1) ... [2021-11-07 02:07:50,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:48" (1/1) ... [2021-11-07 02:07:50,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:48" (1/1) ... [2021-11-07 02:07:51,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:48" (1/1) ... [2021-11-07 02:07:51,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:48" (1/1) ... [2021-11-07 02:07:52,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:48" (1/1) ... [2021-11-07 02:07:52,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:07:52,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:07:52,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:07:52,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:07:52,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:48" (1/1) ... [2021-11-07 02:07:52,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:07:52,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:07:52,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:07:52,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:07:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2021-11-07 02:07:52,849 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2021-11-07 02:07:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:07:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:07:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:07:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:07:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:07:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:07:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 02:07:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 02:07:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 02:07:52,851 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2021-11-07 02:07:52,851 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2021-11-07 02:07:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 02:07:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2021-11-07 02:07:52,852 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2021-11-07 02:07:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:07:52,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:07:52,852 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2021-11-07 02:07:52,853 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2021-11-07 02:07:52,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:07:52,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:07:52,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:07:52,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 02:07:52,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 02:07:52,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 02:07:52,854 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2021-11-07 02:07:52,854 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2021-11-07 02:07:52,855 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2021-11-07 02:07:52,855 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2021-11-07 02:07:52,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:07:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:07:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-07 02:07:52,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-07 02:07:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:07:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:07:52,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 02:07:52,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:07:52,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:07:52,857 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-07 02:07:52,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-07 02:07:52,858 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2021-11-07 02:07:52,858 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2021-11-07 02:07:52,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 02:07:52,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 02:07:52,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 02:07:52,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 02:07:52,860 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2021-11-07 02:07:52,860 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2021-11-07 02:07:52,860 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 02:17:07,083 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-07 02:17:07,083 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-07 02:17:07,084 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 02:17:07,084 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-07 02:17:07,087 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 02:17:07,087 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 02:17:07,158 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:17:07,158 INFO L299 CfgBuilder]: Removed 9691 assume(true) statements. [2021-11-07 02:17:07,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:17:07 BoogieIcfgContainer [2021-11-07 02:17:07,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:17:07,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:17:07,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:17:07,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:17:07,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:07:40" (1/3) ... [2021-11-07 02:17:07,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b243e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:17:07, skipping insertion in model container [2021-11-07 02:17:07,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:07:48" (2/3) ... [2021-11-07 02:17:07,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b243e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:17:07, skipping insertion in model container [2021-11-07 02:17:07,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:17:07" (3/3) ... [2021-11-07 02:17:07,178 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-07 02:17:07,184 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:17:07,184 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-11-07 02:17:07,264 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:17:07,269 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:17:07,270 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-11-07 02:17:07,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 9382 states, 9215 states have (on average 1.3274009766684753) internal successors, (12232), 9256 states have internal predecessors, (12232), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2021-11-07 02:17:07,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 02:17:07,423 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:17:07,423 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:17:07,424 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 02:17:07,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:17:07,429 INFO L85 PathProgramCache]: Analyzing trace with hash -623206203, now seen corresponding path program 1 times [2021-11-07 02:17:07,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:17:07,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487124169] [2021-11-07 02:17:07,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:17:07,447 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:17:07,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:17:07,452 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:17:07,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:17:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:17:10,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:17:10,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:17:11,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:17:11,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:17:11,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:17:11,464 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:17:11,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487124169] [2021-11-07 02:17:11,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487124169] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:17:11,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:17:11,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:17:11,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79202572] [2021-11-07 02:17:11,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:17:11,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:17:11,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:17:11,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:17:11,505 INFO L87 Difference]: Start difference. First operand has 9382 states, 9215 states have (on average 1.3274009766684753) internal successors, (12232), 9256 states have internal predecessors, (12232), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:17,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:17:17,446 INFO L93 Difference]: Finished difference Result 36322 states and 48304 transitions. [2021-11-07 02:17:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:17:17,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-07 02:17:17,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:17:17,891 INFO L225 Difference]: With dead ends: 36322 [2021-11-07 02:17:17,892 INFO L226 Difference]: Without dead ends: 26424 [2021-11-07 02:17:17,928 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:17:17,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26424 states. [2021-11-07 02:17:19,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26424 to 26424. [2021-11-07 02:17:19,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26424 states, 26007 states have (on average 1.2863459837735993) internal successors, (33454), 26048 states have internal predecessors, (33454), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-07 02:17:19,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26424 states to 26424 states and 34144 transitions. [2021-11-07 02:17:19,240 INFO L78 Accepts]: Start accepts. Automaton has 26424 states and 34144 transitions. Word has length 90 [2021-11-07 02:17:19,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:17:19,242 INFO L470 AbstractCegarLoop]: Abstraction has 26424 states and 34144 transitions. [2021-11-07 02:17:19,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:19,243 INFO L276 IsEmpty]: Start isEmpty. Operand 26424 states and 34144 transitions. [2021-11-07 02:17:19,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 02:17:19,257 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:17:19,259 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:17:19,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:17:19,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:17:19,479 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 02:17:19,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:17:19,481 INFO L85 PathProgramCache]: Analyzing trace with hash 447192805, now seen corresponding path program 1 times [2021-11-07 02:17:19,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:17:19,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374389794] [2021-11-07 02:17:19,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:17:19,486 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:17:19,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:17:19,488 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:17:19,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:17:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:17:22,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 2017 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:17:22,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:17:23,267 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:17:23,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:17:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:17:23,585 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:17:23,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374389794] [2021-11-07 02:17:23,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374389794] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:17:23,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:17:23,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:17:23,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636804137] [2021-11-07 02:17:23,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:17:23,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:17:23,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:17:23,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:17:23,589 INFO L87 Difference]: Start difference. First operand 26424 states and 34144 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:29,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:17:29,541 INFO L93 Difference]: Finished difference Result 61317 states and 79301 transitions. [2021-11-07 02:17:29,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:17:29,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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 120 [2021-11-07 02:17:29,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:17:29,709 INFO L225 Difference]: With dead ends: 61317 [2021-11-07 02:17:29,710 INFO L226 Difference]: Without dead ends: 43761 [2021-11-07 02:17:29,768 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:17:29,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43761 states. [2021-11-07 02:17:31,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43761 to 43761. [2021-11-07 02:17:31,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43761 states, 43094 states have (on average 1.2868844850791294) internal successors, (55457), 43135 states have internal predecessors, (55457), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-07 02:17:31,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43761 states to 43761 states and 56607 transitions. [2021-11-07 02:17:31,686 INFO L78 Accepts]: Start accepts. Automaton has 43761 states and 56607 transitions. Word has length 120 [2021-11-07 02:17:31,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:17:31,688 INFO L470 AbstractCegarLoop]: Abstraction has 43761 states and 56607 transitions. [2021-11-07 02:17:31,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:31,688 INFO L276 IsEmpty]: Start isEmpty. Operand 43761 states and 56607 transitions. [2021-11-07 02:17:31,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 02:17:31,702 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:17:31,703 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:17:31,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:17:31,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:17:31,924 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 02:17:31,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:17:31,925 INFO L85 PathProgramCache]: Analyzing trace with hash 764247360, now seen corresponding path program 1 times [2021-11-07 02:17:31,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:17:31,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456884587] [2021-11-07 02:17:31,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:17:31,929 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:17:31,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:17:31,933 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:17:31,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:17:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:17:35,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 1988 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:17:35,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:17:36,343 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:17:36,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:17:37,518 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:17:37,518 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:17:37,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456884587] [2021-11-07 02:17:37,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456884587] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:17:37,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:17:37,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:17:37,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269945570] [2021-11-07 02:17:37,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:17:37,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:17:37,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:17:37,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:17:37,521 INFO L87 Difference]: Start difference. First operand 43761 states and 56607 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:39,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:17:39,395 INFO L93 Difference]: Finished difference Result 43761 states and 56607 transitions. [2021-11-07 02:17:39,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:17:39,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-11-07 02:17:39,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:17:39,629 INFO L225 Difference]: With dead ends: 43761 [2021-11-07 02:17:39,629 INFO L226 Difference]: Without dead ends: 43755 [2021-11-07 02:17:39,641 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:17:39,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43755 states. [2021-11-07 02:17:41,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43755 to 43755. [2021-11-07 02:17:41,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43755 states, 43091 states have (on average 1.2868348379011858) internal successors, (55451), 43129 states have internal predecessors, (55451), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-07 02:17:41,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43755 states to 43755 states and 56601 transitions. [2021-11-07 02:17:41,488 INFO L78 Accepts]: Start accepts. Automaton has 43755 states and 56601 transitions. Word has length 120 [2021-11-07 02:17:41,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:17:41,489 INFO L470 AbstractCegarLoop]: Abstraction has 43755 states and 56601 transitions. [2021-11-07 02:17:41,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:41,490 INFO L276 IsEmpty]: Start isEmpty. Operand 43755 states and 56601 transitions. [2021-11-07 02:17:41,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-07 02:17:41,497 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:17:41,497 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:17:41,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:17:41,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:17:41,716 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 02:17:41,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:17:41,717 INFO L85 PathProgramCache]: Analyzing trace with hash 2485027, now seen corresponding path program 1 times [2021-11-07 02:17:41,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:17:41,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57464381] [2021-11-07 02:17:41,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:17:41,724 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:17:41,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:17:41,725 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:17:41,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:17:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:17:44,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 1991 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:17:44,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:17:45,984 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:17:45,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:17:47,170 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:17:47,170 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:17:47,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57464381] [2021-11-07 02:17:47,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57464381] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:17:47,171 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:17:47,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:17:47,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369444232] [2021-11-07 02:17:47,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:17:47,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:17:47,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:17:47,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:17:47,173 INFO L87 Difference]: Start difference. First operand 43755 states and 56601 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:48,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:17:48,841 INFO L93 Difference]: Finished difference Result 43755 states and 56601 transitions. [2021-11-07 02:17:48,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:17:48,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-07 02:17:48,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:17:48,935 INFO L225 Difference]: With dead ends: 43755 [2021-11-07 02:17:48,935 INFO L226 Difference]: Without dead ends: 43749 [2021-11-07 02:17:48,946 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:17:49,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43749 states. [2021-11-07 02:17:50,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43749 to 43749. [2021-11-07 02:17:50,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43749 states, 43088 states have (on average 1.2867851838098774) internal successors, (55445), 43123 states have internal predecessors, (55445), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-07 02:17:50,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43749 states to 43749 states and 56595 transitions. [2021-11-07 02:17:50,803 INFO L78 Accepts]: Start accepts. Automaton has 43749 states and 56595 transitions. Word has length 122 [2021-11-07 02:17:50,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:17:50,803 INFO L470 AbstractCegarLoop]: Abstraction has 43749 states and 56595 transitions. [2021-11-07 02:17:50,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:50,804 INFO L276 IsEmpty]: Start isEmpty. Operand 43749 states and 56595 transitions. [2021-11-07 02:17:50,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-07 02:17:50,820 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:17:50,820 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:17:50,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:17:51,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:17:51,035 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 02:17:51,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:17:51,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1906676346, now seen corresponding path program 1 times [2021-11-07 02:17:51,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:17:51,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079842950] [2021-11-07 02:17:51,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:17:51,044 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:17:51,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:17:51,045 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:17:51,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:17:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:17:54,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 1994 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:17:54,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:17:55,108 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:17:55,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:17:56,123 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:17:56,124 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:17:56,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079842950] [2021-11-07 02:17:56,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079842950] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:17:56,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:17:56,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:17:56,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147787968] [2021-11-07 02:17:56,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:17:56,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:17:56,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:17:56,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:17:56,126 INFO L87 Difference]: Start difference. First operand 43749 states and 56595 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:58,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:17:58,244 INFO L93 Difference]: Finished difference Result 43749 states and 56595 transitions. [2021-11-07 02:17:58,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:17:58,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 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 124 [2021-11-07 02:17:58,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:17:58,326 INFO L225 Difference]: With dead ends: 43749 [2021-11-07 02:17:58,327 INFO L226 Difference]: Without dead ends: 43743 [2021-11-07 02:17:58,344 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:17:58,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43743 states. [2021-11-07 02:18:00,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43743 to 43743. [2021-11-07 02:18:00,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43743 states, 43085 states have (on average 1.28673552280376) internal successors, (55439), 43117 states have internal predecessors, (55439), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-07 02:18:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43743 states to 43743 states and 56589 transitions. [2021-11-07 02:18:00,557 INFO L78 Accepts]: Start accepts. Automaton has 43743 states and 56589 transitions. Word has length 124 [2021-11-07 02:18:00,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:00,557 INFO L470 AbstractCegarLoop]: Abstraction has 43743 states and 56589 transitions. [2021-11-07 02:18:00,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:00,557 INFO L276 IsEmpty]: Start isEmpty. Operand 43743 states and 56589 transitions. [2021-11-07 02:18:00,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-07 02:18:00,564 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:00,564 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:00,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:18:00,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:18:00,767 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 02:18:00,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:00,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1635247209, now seen corresponding path program 1 times [2021-11-07 02:18:00,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:18:00,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153878884] [2021-11-07 02:18:00,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:00,772 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:18:00,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:18:00,773 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:18:00,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:18:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:03,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 1997 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:18:03,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:18:04,871 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:18:04,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:18:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:18:05,941 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:18:05,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153878884] [2021-11-07 02:18:05,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1153878884] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:05,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:05,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:18:05,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612531923] [2021-11-07 02:18:05,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:18:05,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:18:05,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:18:05,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:18:05,944 INFO L87 Difference]: Start difference. First operand 43743 states and 56589 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:08,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:08,485 INFO L93 Difference]: Finished difference Result 43743 states and 56589 transitions. [2021-11-07 02:18:08,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:18:08,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 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 126 [2021-11-07 02:18:08,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:08,564 INFO L225 Difference]: With dead ends: 43743 [2021-11-07 02:18:08,565 INFO L226 Difference]: Without dead ends: 43737 [2021-11-07 02:18:08,579 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:18:08,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43737 states. [2021-11-07 02:18:10,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43737 to 43737. [2021-11-07 02:18:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43737 states, 43082 states have (on average 1.2866858548813889) internal successors, (55433), 43111 states have internal predecessors, (55433), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-07 02:18:10,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43737 states to 43737 states and 56583 transitions. [2021-11-07 02:18:10,560 INFO L78 Accepts]: Start accepts. Automaton has 43737 states and 56583 transitions. Word has length 126 [2021-11-07 02:18:10,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:10,560 INFO L470 AbstractCegarLoop]: Abstraction has 43737 states and 56583 transitions. [2021-11-07 02:18:10,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:10,561 INFO L276 IsEmpty]: Start isEmpty. Operand 43737 states and 56583 transitions. [2021-11-07 02:18:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-07 02:18:10,571 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:10,571 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:10,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:18:10,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:18:10,784 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 02:18:10,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:10,785 INFO L85 PathProgramCache]: Analyzing trace with hash -485281844, now seen corresponding path program 1 times [2021-11-07 02:18:10,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:18:10,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414189432] [2021-11-07 02:18:10,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:10,787 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:18:10,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:18:10,788 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:18:10,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:18:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:13,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 2000 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:18:13,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:18:14,858 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:18:14,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:18:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:18:15,912 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:18:15,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414189432] [2021-11-07 02:18:15,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414189432] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:15,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:15,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:18:15,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998203427] [2021-11-07 02:18:15,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:18:15,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:18:15,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:18:15,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:18:15,913 INFO L87 Difference]: Start difference. First operand 43737 states and 56583 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:18,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:18,490 INFO L93 Difference]: Finished difference Result 43737 states and 56583 transitions. [2021-11-07 02:18:18,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:18:18,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 128 [2021-11-07 02:18:18,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:18,553 INFO L225 Difference]: With dead ends: 43737 [2021-11-07 02:18:18,553 INFO L226 Difference]: Without dead ends: 43731 [2021-11-07 02:18:18,564 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:18:18,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43731 states. [2021-11-07 02:18:20,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43731 to 43731. [2021-11-07 02:18:20,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43731 states, 43079 states have (on average 1.2866361800413195) internal successors, (55427), 43105 states have internal predecessors, (55427), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-07 02:18:20,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43731 states to 43731 states and 56577 transitions. [2021-11-07 02:18:20,564 INFO L78 Accepts]: Start accepts. Automaton has 43731 states and 56577 transitions. Word has length 128 [2021-11-07 02:18:20,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:20,564 INFO L470 AbstractCegarLoop]: Abstraction has 43731 states and 56577 transitions. [2021-11-07 02:18:20,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:20,564 INFO L276 IsEmpty]: Start isEmpty. Operand 43731 states and 56577 transitions. [2021-11-07 02:18:20,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-07 02:18:20,575 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:20,576 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:20,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:18:20,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:18:20,801 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 02:18:20,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:20,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1795764143, now seen corresponding path program 1 times [2021-11-07 02:18:20,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:18:20,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461832386] [2021-11-07 02:18:20,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:20,803 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:18:20,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:18:20,804 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:18:20,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:18:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:24,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 2003 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:18:24,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:18:25,084 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:18:25,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:18:26,113 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:18:26,113 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:18:26,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461832386] [2021-11-07 02:18:26,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461832386] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:26,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:26,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:18:26,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913633209] [2021-11-07 02:18:26,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:18:26,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:18:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:18:26,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:18:26,115 INFO L87 Difference]: Start difference. First operand 43731 states and 56577 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:28,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:28,341 INFO L93 Difference]: Finished difference Result 43731 states and 56577 transitions. [2021-11-07 02:18:28,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:18:28,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 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 130 [2021-11-07 02:18:28,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:28,400 INFO L225 Difference]: With dead ends: 43731 [2021-11-07 02:18:28,400 INFO L226 Difference]: Without dead ends: 43725 [2021-11-07 02:18:28,410 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:18:28,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43725 states. [2021-11-07 02:18:30,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43725 to 43725. [2021-11-07 02:18:30,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43725 states, 43076 states have (on average 1.286586498282106) internal successors, (55421), 43099 states have internal predecessors, (55421), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-07 02:18:30,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43725 states to 43725 states and 56571 transitions. [2021-11-07 02:18:30,655 INFO L78 Accepts]: Start accepts. Automaton has 43725 states and 56571 transitions. Word has length 130 [2021-11-07 02:18:30,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:18:30,655 INFO L470 AbstractCegarLoop]: Abstraction has 43725 states and 56571 transitions. [2021-11-07 02:18:30,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:30,655 INFO L276 IsEmpty]: Start isEmpty. Operand 43725 states and 56571 transitions. [2021-11-07 02:18:30,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-07 02:18:30,665 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:18:30,665 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:18:30,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-07 02:18:30,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:18:30,880 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-07 02:18:30,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:18:30,881 INFO L85 PathProgramCache]: Analyzing trace with hash -847330286, now seen corresponding path program 1 times [2021-11-07 02:18:30,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:18:30,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919627270] [2021-11-07 02:18:30,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:18:30,883 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:18:30,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:18:30,884 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:18:30,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d273ac6-409a-4865-aa4d-a03a40b45035/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:18:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:18:34,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 2006 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:18:34,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:18:35,239 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:18:35,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:18:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:18:36,283 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:18:36,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919627270] [2021-11-07 02:18:36,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919627270] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:18:36,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:18:36,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:18:36,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607496035] [2021-11-07 02:18:36,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:18:36,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:18:36,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:18:36,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:18:36,285 INFO L87 Difference]: Start difference. First operand 43725 states and 56571 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:18:38,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:18:38,839 INFO L93 Difference]: Finished difference Result 43725 states and 56571 transitions. [2021-11-07 02:18:38,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:18:38,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 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 132 [2021-11-07 02:18:38,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:18:38,899 INFO L225 Difference]: With dead ends: 43725 [2021-11-07 02:18:38,899 INFO L226 Difference]: Without dead ends: 43719 [2021-11-07 02:18:38,909 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:18:38,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43719 states.