./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_eq_harness.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_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/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_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/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_58867620-3b24-4979-bc02-b57281bf729e/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 c9f60659fbb0886b2c3c86084c4cc81dbedd027936fc1dda43226ecbc4710056 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:02:14,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:02:14,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:02:14,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:02:14,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:02:14,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:02:14,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:02:14,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:02:14,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:02:14,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:02:14,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:02:14,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:02:14,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:02:14,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:02:14,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:02:14,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:02:14,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:02:14,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:02:14,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:02:14,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:02:14,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:02:14,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:02:14,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:02:14,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:02:14,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:02:14,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:02:14,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:02:14,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:02:14,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:02:14,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:02:14,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:02:14,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:02:14,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:02:14,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:02:14,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:02:14,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:02:14,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:02:14,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:02:14,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:02:14,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:02:14,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:02:14,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:02:14,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:02:14,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:02:14,126 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:02:14,127 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:02:14,127 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:02:14,127 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:02:14,127 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:02:14,128 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:02:14,134 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:02:14,134 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:02:14,135 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:02:14,136 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:02:14,136 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:02:14,136 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:02:14,136 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:02:14,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:02:14,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:02:14,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:02:14,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:02:14,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:02:14,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:02:14,139 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:02:14,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:02:14,140 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:02:14,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:02:14,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:02:14,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:02:14,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:14,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:02:14,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:02:14,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:02:14,143 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:02:14,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:02:14,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:02:14,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:02:14,144 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:02:14,144 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_58867620-3b24-4979-bc02-b57281bf729e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9f60659fbb0886b2c3c86084c4cc81dbedd027936fc1dda43226ecbc4710056 [2021-11-07 02:02:14,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:02:14,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:02:14,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:02:14,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:02:14,463 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:02:14,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i [2021-11-07 02:02:14,540 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/data/8996af8c0/9ca8231051364f8a8a1fb9e2b34f300b/FLAGf0adcff2c [2021-11-07 02:02:15,443 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:02:15,444 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i [2021-11-07 02:02:15,491 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/data/8996af8c0/9ca8231051364f8a8a1fb9e2b34f300b/FLAGf0adcff2c [2021-11-07 02:02:15,919 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/data/8996af8c0/9ca8231051364f8a8a1fb9e2b34f300b [2021-11-07 02:02:15,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:02:15,922 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:02:15,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:15,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:02:15,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:02:15,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:15" (1/1) ... [2021-11-07 02:02:15,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf5255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:15, skipping insertion in model container [2021-11-07 02:02:15,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:15" (1/1) ... [2021-11-07 02:02:15,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:02:16,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:02:16,353 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_58867620-3b24-4979-bc02-b57281bf729e/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4486,4499] [2021-11-07 02:02:16,360 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_58867620-3b24-4979-bc02-b57281bf729e/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4546,4559] [2021-11-07 02:02:16,384 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:02:16,390 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:02:17,465 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:17,471 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:17,471 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:17,473 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:17,474 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:17,502 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:17,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:17,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:17,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:17,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:02:17,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:02:17,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:02:17,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:02:17,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:02:17,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:02:17,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:02:17,918 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:02:17,918 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:02:17,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:02:18,092 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:02:18,216 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:18,217 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:18,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:18,394 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 02:02:18,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@58de8b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:18, skipping insertion in model container [2021-11-07 02:02:18,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:18,396 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:02:18,399 INFO L168 Benchmark]: Toolchain (without parser) took 2475.20 ms. Allocated memory was 104.9 MB in the beginning and 148.9 MB in the end (delta: 44.0 MB). Free memory was 56.7 MB in the beginning and 97.5 MB in the end (delta: -40.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:18,400 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory was 82.3 MB in the beginning and 82.2 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:02:18,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2472.57 ms. Allocated memory was 104.9 MB in the beginning and 148.9 MB in the end (delta: 44.0 MB). Free memory was 56.5 MB in the beginning and 97.5 MB in the end (delta: -41.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:18,405 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory was 82.3 MB in the beginning and 82.2 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2472.57 ms. Allocated memory was 104.9 MB in the beginning and 148.9 MB in the end (delta: 44.0 MB). Free memory was 56.5 MB in the beginning and 97.5 MB in the end (delta: -41.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: 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_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/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_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/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_58867620-3b24-4979-bc02-b57281bf729e/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 c9f60659fbb0886b2c3c86084c4cc81dbedd027936fc1dda43226ecbc4710056 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:02:20,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:02:20,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:02:20,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:02:20,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:02:20,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:02:20,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:02:20,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:02:20,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:02:20,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:02:20,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:02:20,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:02:20,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:02:20,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:02:20,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:02:20,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:02:20,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:02:20,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:02:20,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:02:20,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:02:20,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:02:20,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:02:20,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:02:20,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:02:20,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:02:20,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:02:20,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:02:20,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:02:20,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:02:20,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:02:20,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:02:20,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:02:20,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:02:20,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:02:20,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:02:20,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:02:20,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:02:20,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:02:20,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:02:20,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:02:20,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:02:20,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:02:20,772 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:02:20,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:02:20,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:02:20,774 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:02:20,774 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:02:20,774 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:02:20,774 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:02:20,775 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:02:20,776 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:02:20,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:02:20,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:02:20,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:02:20,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:02:20,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:02:20,779 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:02:20,779 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:02:20,779 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:02:20,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:02:20,780 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:02:20,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:02:20,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:02:20,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:02:20,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:02:20,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:20,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:02:20,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:02:20,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:02:20,782 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:02:20,782 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:02:20,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:02:20,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:02:20,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:02:20,783 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_58867620-3b24-4979-bc02-b57281bf729e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9f60659fbb0886b2c3c86084c4cc81dbedd027936fc1dda43226ecbc4710056 [2021-11-07 02:02:21,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:02:21,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:02:21,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:02:21,186 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:02:21,186 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:02:21,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i [2021-11-07 02:02:21,267 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/data/aaf78bbed/fb846845a7ea47d4a960dd9634460025/FLAGdaa07059f [2021-11-07 02:02:22,140 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:02:22,143 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i [2021-11-07 02:02:22,205 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/data/aaf78bbed/fb846845a7ea47d4a960dd9634460025/FLAGdaa07059f [2021-11-07 02:02:22,694 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/data/aaf78bbed/fb846845a7ea47d4a960dd9634460025 [2021-11-07 02:02:22,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:02:22,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:02:22,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:22,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:02:22,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:02:22,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:22" (1/1) ... [2021-11-07 02:02:22,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a4dbb6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:22, skipping insertion in model container [2021-11-07 02:02:22,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:22" (1/1) ... [2021-11-07 02:02:22,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:02:22,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:02:23,125 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_58867620-3b24-4979-bc02-b57281bf729e/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4486,4499] [2021-11-07 02:02:23,130 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_58867620-3b24-4979-bc02-b57281bf729e/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4546,4559] [2021-11-07 02:02:23,149 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:02:23,154 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:02:23,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:23,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:23,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:23,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:23,958 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:23,973 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:23,974 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:23,976 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:23,977 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:24,405 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:02:24,406 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:02:24,407 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:02:24,408 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:02:24,409 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:02:24,410 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:02:24,411 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:02:24,412 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:02:24,412 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:02:24,413 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:02:24,620 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:02:24,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:24,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:24,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:24,841 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:02:24,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:02:24,913 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_58867620-3b24-4979-bc02-b57281bf729e/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4486,4499] [2021-11-07 02:02:24,914 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_58867620-3b24-4979-bc02-b57281bf729e/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4546,4559] [2021-11-07 02:02:24,915 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:02:24,915 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:02:24,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:24,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:24,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:24,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:24,957 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:24,970 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:24,975 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:24,976 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:24,977 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,055 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:02:25,058 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:02:25,059 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:02:25,060 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:02:25,061 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:02:25,062 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:02:25,065 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:02:25,066 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:02:25,066 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:02:25,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:02:25,117 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:02:25,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,201 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:25,292 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:02:25,344 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_58867620-3b24-4979-bc02-b57281bf729e/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4486,4499] [2021-11-07 02:02:25,348 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_58867620-3b24-4979-bc02-b57281bf729e/sv-benchmarks/c/aws-c-common/aws_array_eq_harness.i[4546,4559] [2021-11-07 02:02:25,350 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:02:25,353 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:02:25,395 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,402 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,404 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,434 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:02:25,435 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:02:25,436 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:02:25,436 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:02:25,437 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:02:25,438 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:02:25,438 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:02:25,439 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:02:25,440 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:02:25,440 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:02:25,463 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:02:25,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,556 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:02:25,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:26,094 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:02:26,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:26 WrapperNode [2021-11-07 02:02:26,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:26,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:02:26,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:02:26,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:02:26,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:26" (1/1) ... [2021-11-07 02:02:26,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:26" (1/1) ... [2021-11-07 02:02:26,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:02:26,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:02:26,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:02:26,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:02:26,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:26" (1/1) ... [2021-11-07 02:02:26,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:26" (1/1) ... [2021-11-07 02:02:26,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:26" (1/1) ... [2021-11-07 02:02:26,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:26" (1/1) ... [2021-11-07 02:02:26,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:26" (1/1) ... [2021-11-07 02:02:26,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:26" (1/1) ... [2021-11-07 02:02:26,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:26" (1/1) ... [2021-11-07 02:02:26,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:02:26,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:02:26,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:02:26,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:02:26,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:26" (1/1) ... [2021-11-07 02:02:26,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:26,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:02:26,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:02:26,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:02:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 02:02:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:02:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:02:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:02:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:02:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:02:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:02:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:02:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:02:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:02:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:02:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:02:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:02:40,217 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:02:40,218 INFO L299 CfgBuilder]: Removed 70 assume(true) statements. [2021-11-07 02:02:40,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:02:40 BoogieIcfgContainer [2021-11-07 02:02:40,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:02:40,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:02:40,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:02:40,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:02:40,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:02:22" (1/3) ... [2021-11-07 02:02:40,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ab9f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:02:40, skipping insertion in model container [2021-11-07 02:02:40,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:26" (2/3) ... [2021-11-07 02:02:40,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ab9f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:02:40, skipping insertion in model container [2021-11-07 02:02:40,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:02:40" (3/3) ... [2021-11-07 02:02:40,227 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_eq_harness.i [2021-11-07 02:02:40,236 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:02:40,236 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 02:02:40,295 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:02:40,306 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 02:02:40,307 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 02:02:40,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 70 states have (on average 1.5) internal successors, (105), 75 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:40,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-07 02:02:40,327 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:40,328 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] [2021-11-07 02:02:40,328 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:02:40,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:40,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1732530516, now seen corresponding path program 1 times [2021-11-07 02:02:40,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:40,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263161710] [2021-11-07 02:02:40,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:40,356 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:40,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:40,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:40,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:02:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:44,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:02:44,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:44,772 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 02:02:44,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:44,882 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 02:02:44,883 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:44,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263161710] [2021-11-07 02:02:44,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263161710] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:44,884 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:44,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:02:44,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424953193] [2021-11-07 02:02:44,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:02:44,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:44,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:02:44,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:02:44,907 INFO L87 Difference]: Start difference. First operand has 76 states, 70 states have (on average 1.5) internal successors, (105), 75 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 02:02:44,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:44,930 INFO L93 Difference]: Finished difference Result 149 states and 206 transitions. [2021-11-07 02:02:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:02:44,931 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 27 [2021-11-07 02:02:44,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:44,941 INFO L225 Difference]: With dead ends: 149 [2021-11-07 02:02:44,941 INFO L226 Difference]: Without dead ends: 70 [2021-11-07 02:02:44,944 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:02:44,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-07 02:02:44,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-07 02:02:44,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 69 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:02:44,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2021-11-07 02:02:44,981 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 27 [2021-11-07 02:02:44,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:44,981 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2021-11-07 02:02:44,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 02:02:44,982 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2021-11-07 02:02:44,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-07 02:02:44,983 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:44,983 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] [2021-11-07 02:02:45,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:45,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:45,184 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:02:45,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:45,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1816035494, now seen corresponding path program 1 times [2021-11-07 02:02:45,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:45,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140939267] [2021-11-07 02:02:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:45,190 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:45,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:45,194 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:45,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:02:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:49,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 02:02:49,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:50,280 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 02:02:50,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:50,825 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 02:02:50,826 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:50,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140939267] [2021-11-07 02:02:50,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140939267] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:50,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:50,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2021-11-07 02:02:50,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139619017] [2021-11-07 02:02:50,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 02:02:50,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:50,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 02:02:50,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-11-07 02:02:50,830 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 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 02:02:54,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:54,390 INFO L93 Difference]: Finished difference Result 495 states and 576 transitions. [2021-11-07 02:02:54,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-07 02:02:54,393 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 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 27 [2021-11-07 02:02:54,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:54,398 INFO L225 Difference]: With dead ends: 495 [2021-11-07 02:02:54,398 INFO L226 Difference]: Without dead ends: 464 [2021-11-07 02:02:54,400 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=269, Invalid=1063, Unknown=0, NotChecked=0, Total=1332 [2021-11-07 02:02:54,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-11-07 02:02:54,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 150. [2021-11-07 02:02:54,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.193103448275862) internal successors, (173), 149 states have internal predecessors, (173), 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 02:02:54,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 173 transitions. [2021-11-07 02:02:54,430 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 173 transitions. Word has length 27 [2021-11-07 02:02:54,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:54,431 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 173 transitions. [2021-11-07 02:02:54,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 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 02:02:54,431 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 173 transitions. [2021-11-07 02:02:54,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-07 02:02:54,433 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:54,433 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] [2021-11-07 02:02:54,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:02:54,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:54,655 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:02:54,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:54,656 INFO L85 PathProgramCache]: Analyzing trace with hash 515997540, now seen corresponding path program 1 times [2021-11-07 02:02:54,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:54,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974615598] [2021-11-07 02:02:54,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:54,661 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:54,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:54,662 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:54,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:02:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:02:58,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1734 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:02:58,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:02:58,706 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 02:02:58,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:02:58,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:02:58,864 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:02:58,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974615598] [2021-11-07 02:02:58,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974615598] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:02:58,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:02:58,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 02:02:58,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821127005] [2021-11-07 02:02:58,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:02:58,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:02:58,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:02:58,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:02:58,866 INFO L87 Difference]: Start difference. First operand 150 states and 173 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 02:02:59,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:02:59,211 INFO L93 Difference]: Finished difference Result 192 states and 226 transitions. [2021-11-07 02:02:59,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:02:59,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 28 [2021-11-07 02:02:59,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:02:59,213 INFO L225 Difference]: With dead ends: 192 [2021-11-07 02:02:59,213 INFO L226 Difference]: Without dead ends: 167 [2021-11-07 02:02:59,215 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:02:59,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-07 02:02:59,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 131. [2021-11-07 02:02:59,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 126 states have (on average 1.2142857142857142) internal successors, (153), 130 states have internal predecessors, (153), 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 02:02:59,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2021-11-07 02:02:59,231 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 28 [2021-11-07 02:02:59,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:02:59,231 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2021-11-07 02:02:59,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 02:02:59,231 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2021-11-07 02:02:59,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 02:02:59,233 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:02:59,233 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] [2021-11-07 02:02:59,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 02:02:59,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:02:59,439 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:02:59,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:02:59,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1532986451, now seen corresponding path program 1 times [2021-11-07 02:02:59,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:02:59,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833554340] [2021-11-07 02:02:59,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:02:59,444 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:02:59,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:02:59,450 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:02:59,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:03:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:03:03,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1762 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 02:03:03,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:03:03,893 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 02:03:03,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:03:04,423 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 02:03:04,423 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:03:04,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833554340] [2021-11-07 02:03:04,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833554340] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:03:04,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:03:04,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 15 [2021-11-07 02:03:04,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706777782] [2021-11-07 02:03:04,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 02:03:04,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:03:04,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 02:03:04,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-11-07 02:03:04,425 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 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 02:03:06,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:03:06,595 INFO L93 Difference]: Finished difference Result 316 states and 363 transitions. [2021-11-07 02:03:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 02:03:06,596 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 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 33 [2021-11-07 02:03:06,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:03:06,598 INFO L225 Difference]: With dead ends: 316 [2021-11-07 02:03:06,598 INFO L226 Difference]: Without dead ends: 294 [2021-11-07 02:03:06,599 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2021-11-07 02:03:06,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-07 02:03:06,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 149. [2021-11-07 02:03:06,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 144 states have (on average 1.2083333333333333) internal successors, (174), 148 states have internal predecessors, (174), 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 02:03:06,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 174 transitions. [2021-11-07 02:03:06,616 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 174 transitions. Word has length 33 [2021-11-07 02:03:06,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:03:06,616 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 174 transitions. [2021-11-07 02:03:06,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 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 02:03:06,617 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 174 transitions. [2021-11-07 02:03:06,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 02:03:06,619 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:03:06,619 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] [2021-11-07 02:03:06,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 02:03:06,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:03:06,826 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:03:06,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:03:06,827 INFO L85 PathProgramCache]: Analyzing trace with hash -358833571, now seen corresponding path program 1 times [2021-11-07 02:03:06,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:03:06,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113963365] [2021-11-07 02:03:06,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:03:06,830 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:03:06,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:03:06,831 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:03:06,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:03:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:03:10,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 1743 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-07 02:03:10,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:03:12,460 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 02:03:12,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:03:14,347 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 02:03:14,348 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:03:14,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113963365] [2021-11-07 02:03:14,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113963365] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:03:14,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:03:14,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 15] imperfect sequences [] total 30 [2021-11-07 02:03:14,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982116334] [2021-11-07 02:03:14,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 02:03:14,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:03:14,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 02:03:14,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2021-11-07 02:03:14,351 INFO L87 Difference]: Start difference. First operand 149 states and 174 transitions. Second operand has 30 states, 30 states have (on average 2.033333333333333) internal successors, (61), 30 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:03:21,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:03:21,083 INFO L93 Difference]: Finished difference Result 552 states and 623 transitions. [2021-11-07 02:03:21,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-07 02:03:21,084 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.033333333333333) internal successors, (61), 30 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 02:03:21,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:03:21,087 INFO L225 Difference]: With dead ends: 552 [2021-11-07 02:03:21,087 INFO L226 Difference]: Without dead ends: 537 [2021-11-07 02:03:21,091 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1205 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=889, Invalid=3941, Unknown=0, NotChecked=0, Total=4830 [2021-11-07 02:03:21,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2021-11-07 02:03:21,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 174. [2021-11-07 02:03:21,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 169 states have (on average 1.1893491124260356) internal successors, (201), 173 states have internal predecessors, (201), 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 02:03:21,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 201 transitions. [2021-11-07 02:03:21,107 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 201 transitions. Word has length 33 [2021-11-07 02:03:21,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:03:21,108 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 201 transitions. [2021-11-07 02:03:21,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.033333333333333) internal successors, (61), 30 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:03:21,108 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 201 transitions. [2021-11-07 02:03:21,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 02:03:21,110 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:03:21,111 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] [2021-11-07 02:03:21,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:03:21,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:03:21,327 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:03:21,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:03:21,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1155426652, now seen corresponding path program 1 times [2021-11-07 02:03:21,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:03:21,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235811518] [2021-11-07 02:03:21,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:03:21,331 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:03:21,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:03:21,332 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:03:21,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:03:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:03:25,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:03:25,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:03:25,320 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 02:03:25,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:03:25,412 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 02:03:25,413 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:03:25,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235811518] [2021-11-07 02:03:25,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235811518] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:03:25,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:03:25,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:03:25,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412633108] [2021-11-07 02:03:25,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:03:25,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:03:25,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:03:25,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:03:25,415 INFO L87 Difference]: Start difference. First operand 174 states and 201 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 02:03:25,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:03:25,480 INFO L93 Difference]: Finished difference Result 225 states and 261 transitions. [2021-11-07 02:03:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:03:25,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 34 [2021-11-07 02:03:25,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:03:25,490 INFO L225 Difference]: With dead ends: 225 [2021-11-07 02:03:25,490 INFO L226 Difference]: Without dead ends: 213 [2021-11-07 02:03:25,491 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:03:25,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-11-07 02:03:25,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 182. [2021-11-07 02:03:25,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.1807909604519775) internal successors, (209), 181 states have internal predecessors, (209), 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 02:03:25,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 209 transitions. [2021-11-07 02:03:25,503 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 209 transitions. Word has length 34 [2021-11-07 02:03:25,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:03:25,504 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 209 transitions. [2021-11-07 02:03:25,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 02:03:25,504 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 209 transitions. [2021-11-07 02:03:25,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 02:03:25,512 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:03:25,512 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] [2021-11-07 02:03:25,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:03:25,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:03:25,727 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:03:25,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:03:25,727 INFO L85 PathProgramCache]: Analyzing trace with hash 346080026, now seen corresponding path program 1 times [2021-11-07 02:03:25,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:03:25,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172557826] [2021-11-07 02:03:25,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:03:25,731 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:03:25,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:03:25,733 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:03:25,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:03:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:03:29,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 1763 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 02:03:29,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:03:30,129 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 02:03:30,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:03:30,623 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 02:03:30,623 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:03:30,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172557826] [2021-11-07 02:03:30,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172557826] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:03:30,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:03:30,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 16 [2021-11-07 02:03:30,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480975751] [2021-11-07 02:03:30,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 02:03:30,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:03:30,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 02:03:30,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-11-07 02:03:30,626 INFO L87 Difference]: Start difference. First operand 182 states and 209 transitions. Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:03:33,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:03:33,420 INFO L93 Difference]: Finished difference Result 389 states and 430 transitions. [2021-11-07 02:03:33,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-07 02:03:33,420 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-07 02:03:33,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:03:33,423 INFO L225 Difference]: With dead ends: 389 [2021-11-07 02:03:33,423 INFO L226 Difference]: Without dead ends: 374 [2021-11-07 02:03:33,424 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=375, Invalid=1185, Unknown=0, NotChecked=0, Total=1560 [2021-11-07 02:03:33,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-11-07 02:03:33,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 195. [2021-11-07 02:03:33,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 190 states have (on average 1.168421052631579) internal successors, (222), 194 states have internal predecessors, (222), 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 02:03:33,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 222 transitions. [2021-11-07 02:03:33,437 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 222 transitions. Word has length 34 [2021-11-07 02:03:33,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:03:33,438 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 222 transitions. [2021-11-07 02:03:33,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:03:33,438 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 222 transitions. [2021-11-07 02:03:33,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 02:03:33,439 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:03:33,440 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] [2021-11-07 02:03:33,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:03:33,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:03:33,663 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:03:33,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:03:33,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1814533261, now seen corresponding path program 1 times [2021-11-07 02:03:33,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:03:33,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605650630] [2021-11-07 02:03:33,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:03:33,667 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:03:33,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:03:33,668 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:03:33,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:03:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:03:37,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-07 02:03:37,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:03:38,940 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 02:03:38,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:03:40,675 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 02:03:40,676 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:03:40,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605650630] [2021-11-07 02:03:40,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605650630] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:03:40,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:03:40,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 15] imperfect sequences [] total 30 [2021-11-07 02:03:40,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891255773] [2021-11-07 02:03:40,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 02:03:40,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:03:40,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 02:03:40,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2021-11-07 02:03:40,678 INFO L87 Difference]: Start difference. First operand 195 states and 222 transitions. Second operand has 30 states, 30 states have (on average 2.2) internal successors, (66), 30 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:03:46,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:03:46,934 INFO L93 Difference]: Finished difference Result 354 states and 399 transitions. [2021-11-07 02:03:46,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-07 02:03:46,934 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.2) internal successors, (66), 30 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-07 02:03:46,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:03:46,936 INFO L225 Difference]: With dead ends: 354 [2021-11-07 02:03:46,937 INFO L226 Difference]: Without dead ends: 323 [2021-11-07 02:03:46,939 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1045 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=830, Invalid=3460, Unknown=0, NotChecked=0, Total=4290 [2021-11-07 02:03:46,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-11-07 02:03:46,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 170. [2021-11-07 02:03:46,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.1757575757575758) internal successors, (194), 169 states have internal predecessors, (194), 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 02:03:46,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 194 transitions. [2021-11-07 02:03:46,950 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 194 transitions. Word has length 34 [2021-11-07 02:03:46,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:03:46,950 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 194 transitions. [2021-11-07 02:03:46,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.2) internal successors, (66), 30 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:03:46,950 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 194 transitions. [2021-11-07 02:03:46,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 02:03:46,951 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:03:46,952 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] [2021-11-07 02:03:46,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-07 02:03:47,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:03:47,155 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:03:47,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:03:47,156 INFO L85 PathProgramCache]: Analyzing trace with hash -849869248, now seen corresponding path program 1 times [2021-11-07 02:03:47,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:03:47,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133221211] [2021-11-07 02:03:47,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:03:47,159 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:03:47,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:03:47,162 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:03:47,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:03:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:03:51,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 02:03:51,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:03:51,535 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 02:03:51,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:03:51,875 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 02:03:51,875 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:03:51,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133221211] [2021-11-07 02:03:51,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133221211] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:03:51,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:03:51,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-07 02:03:51,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350262381] [2021-11-07 02:03:51,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 02:03:51,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:03:51,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 02:03:51,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:03:51,876 INFO L87 Difference]: Start difference. First operand 170 states and 194 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 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 02:03:53,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:03:53,589 INFO L93 Difference]: Finished difference Result 353 states and 394 transitions. [2021-11-07 02:03:53,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 02:03:53,590 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 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 36 [2021-11-07 02:03:53,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:03:53,592 INFO L225 Difference]: With dead ends: 353 [2021-11-07 02:03:53,592 INFO L226 Difference]: Without dead ends: 297 [2021-11-07 02:03:53,593 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2021-11-07 02:03:53,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-11-07 02:03:53,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 176. [2021-11-07 02:03:53,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 171 states have (on average 1.1754385964912282) internal successors, (201), 175 states have internal predecessors, (201), 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 02:03:53,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 201 transitions. [2021-11-07 02:03:53,605 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 201 transitions. Word has length 36 [2021-11-07 02:03:53,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:03:53,605 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 201 transitions. [2021-11-07 02:03:53,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 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 02:03:53,605 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 201 transitions. [2021-11-07 02:03:53,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 02:03:53,606 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:03:53,606 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] [2021-11-07 02:03:53,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-07 02:03:53,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:03:53,815 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:03:53,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:03:53,816 INFO L85 PathProgramCache]: Analyzing trace with hash 214022886, now seen corresponding path program 1 times [2021-11-07 02:03:53,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:03:53,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084978846] [2021-11-07 02:03:53,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:03:53,819 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:03:53,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:03:53,819 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:03:53,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 02:03:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:03:57,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 02:03:57,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:03:58,284 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 02:03:58,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:03:58,841 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 02:03:58,841 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:03:58,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084978846] [2021-11-07 02:03:58,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084978846] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:03:58,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:03:58,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 17 [2021-11-07 02:03:58,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13509252] [2021-11-07 02:03:58,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 02:03:58,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:03:58,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 02:03:58,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-11-07 02:03:58,844 INFO L87 Difference]: Start difference. First operand 176 states and 201 transitions. Second operand has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 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 02:04:01,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:01,493 INFO L93 Difference]: Finished difference Result 300 states and 334 transitions. [2021-11-07 02:04:01,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-07 02:04:01,494 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 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 36 [2021-11-07 02:04:01,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:01,496 INFO L225 Difference]: With dead ends: 300 [2021-11-07 02:04:01,496 INFO L226 Difference]: Without dead ends: 277 [2021-11-07 02:04:01,496 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=315, Invalid=945, Unknown=0, NotChecked=0, Total=1260 [2021-11-07 02:04:01,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-07 02:04:01,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 154. [2021-11-07 02:04:01,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 149 states have (on average 1.174496644295302) internal successors, (175), 153 states have internal predecessors, (175), 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 02:04:01,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 175 transitions. [2021-11-07 02:04:01,506 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 175 transitions. Word has length 36 [2021-11-07 02:04:01,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:01,507 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 175 transitions. [2021-11-07 02:04:01,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 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 02:04:01,507 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 175 transitions. [2021-11-07 02:04:01,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 02:04:01,508 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:01,508 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] [2021-11-07 02:04:01,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-07 02:04:01,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:01,722 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:04:01,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:01,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2113766872, now seen corresponding path program 1 times [2021-11-07 02:04:01,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:01,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45943653] [2021-11-07 02:04:01,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:01,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:01,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:01,726 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:01,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 02:04:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:05,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-07 02:04:05,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:06,962 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 02:04:06,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:08,602 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 02:04:08,602 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:08,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45943653] [2021-11-07 02:04:08,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45943653] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:08,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:08,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18, 16] imperfect sequences [] total 32 [2021-11-07 02:04:08,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667067855] [2021-11-07 02:04:08,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-07 02:04:08,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:08,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-07 02:04:08,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=833, Unknown=0, NotChecked=0, Total=992 [2021-11-07 02:04:08,605 INFO L87 Difference]: Start difference. First operand 154 states and 175 transitions. Second operand has 32 states, 32 states have (on average 2.09375) internal successors, (67), 32 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:19,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:19,368 INFO L93 Difference]: Finished difference Result 449 states and 494 transitions. [2021-11-07 02:04:19,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-07 02:04:19,369 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.09375) internal successors, (67), 32 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-07 02:04:19,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:19,372 INFO L225 Difference]: With dead ends: 449 [2021-11-07 02:04:19,372 INFO L226 Difference]: Without dead ends: 422 [2021-11-07 02:04:19,374 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1282 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=1152, Invalid=5010, Unknown=0, NotChecked=0, Total=6162 [2021-11-07 02:04:19,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-11-07 02:04:19,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 210. [2021-11-07 02:04:19,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.175609756097561) internal successors, (241), 209 states have internal predecessors, (241), 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 02:04:19,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 241 transitions. [2021-11-07 02:04:19,391 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 241 transitions. Word has length 36 [2021-11-07 02:04:19,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:19,391 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 241 transitions. [2021-11-07 02:04:19,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.09375) internal successors, (67), 32 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:19,392 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 241 transitions. [2021-11-07 02:04:19,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 02:04:19,392 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:19,393 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] [2021-11-07 02:04:19,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 02:04:19,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:19,606 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:04:19,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:19,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1837401266, now seen corresponding path program 1 times [2021-11-07 02:04:19,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:19,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366234883] [2021-11-07 02:04:19,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:19,610 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:19,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:19,611 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:19,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 02:04:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:23,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-07 02:04:23,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:25,229 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 02:04:25,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:27,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:27,163 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:27,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366234883] [2021-11-07 02:04:27,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366234883] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:27,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:27,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18, 16] imperfect sequences [] total 32 [2021-11-07 02:04:27,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041479543] [2021-11-07 02:04:27,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-07 02:04:27,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:27,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-07 02:04:27,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2021-11-07 02:04:27,166 INFO L87 Difference]: Start difference. First operand 210 states and 241 transitions. Second operand has 32 states, 32 states have (on average 2.09375) internal successors, (67), 32 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:34,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:34,166 INFO L93 Difference]: Finished difference Result 447 states and 482 transitions. [2021-11-07 02:04:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-07 02:04:34,167 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.09375) internal successors, (67), 32 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-07 02:04:34,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:34,169 INFO L225 Difference]: With dead ends: 447 [2021-11-07 02:04:34,169 INFO L226 Difference]: Without dead ends: 432 [2021-11-07 02:04:34,171 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 900 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=692, Invalid=3214, Unknown=0, NotChecked=0, Total=3906 [2021-11-07 02:04:34,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-11-07 02:04:34,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 210. [2021-11-07 02:04:34,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.175609756097561) internal successors, (241), 209 states have internal predecessors, (241), 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 02:04:34,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 241 transitions. [2021-11-07 02:04:34,189 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 241 transitions. Word has length 36 [2021-11-07 02:04:34,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:34,189 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 241 transitions. [2021-11-07 02:04:34,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.09375) internal successors, (67), 32 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:34,190 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 241 transitions. [2021-11-07 02:04:34,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 02:04:34,190 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:34,191 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] [2021-11-07 02:04:34,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-07 02:04:34,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:34,407 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:04:34,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:34,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1155735666, now seen corresponding path program 1 times [2021-11-07 02:04:34,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:34,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032635533] [2021-11-07 02:04:34,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:34,411 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:34,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:34,411 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:34,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 02:04:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:38,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 1757 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-07 02:04:38,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:39,938 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 02:04:39,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:41,534 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 02:04:41,535 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:41,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032635533] [2021-11-07 02:04:41,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032635533] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:41,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:41,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18, 16] imperfect sequences [] total 32 [2021-11-07 02:04:41,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797340106] [2021-11-07 02:04:41,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-07 02:04:41,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:41,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-07 02:04:41,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=833, Unknown=0, NotChecked=0, Total=992 [2021-11-07 02:04:41,536 INFO L87 Difference]: Start difference. First operand 210 states and 241 transitions. Second operand has 32 states, 32 states have (on average 2.25) internal successors, (72), 32 states have internal predecessors, (72), 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 02:04:50,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:50,207 INFO L93 Difference]: Finished difference Result 290 states and 318 transitions. [2021-11-07 02:04:50,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-07 02:04:50,208 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.25) internal successors, (72), 32 states have internal predecessors, (72), 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 37 [2021-11-07 02:04:50,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:50,209 INFO L225 Difference]: With dead ends: 290 [2021-11-07 02:04:50,209 INFO L226 Difference]: Without dead ends: 269 [2021-11-07 02:04:50,211 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 952 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=914, Invalid=3916, Unknown=0, NotChecked=0, Total=4830 [2021-11-07 02:04:50,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-11-07 02:04:50,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 205. [2021-11-07 02:04:50,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.17) internal successors, (234), 204 states have internal predecessors, (234), 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 02:04:50,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 234 transitions. [2021-11-07 02:04:50,224 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 234 transitions. Word has length 37 [2021-11-07 02:04:50,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:50,225 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 234 transitions. [2021-11-07 02:04:50,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.25) internal successors, (72), 32 states have internal predecessors, (72), 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 02:04:50,225 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 234 transitions. [2021-11-07 02:04:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 02:04:50,226 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:50,226 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] [2021-11-07 02:04:50,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 02:04:50,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:50,439 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:04:50,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:50,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1071392324, now seen corresponding path program 1 times [2021-11-07 02:04:50,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:50,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328317515] [2021-11-07 02:04:50,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:50,442 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:50,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:50,444 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:50,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 02:04:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:54,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 1757 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-07 02:04:54,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:56,016 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 02:04:56,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:57,862 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 02:04:57,862 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:57,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328317515] [2021-11-07 02:04:57,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328317515] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:57,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:57,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18, 16] imperfect sequences [] total 32 [2021-11-07 02:04:57,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507123919] [2021-11-07 02:04:57,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-07 02:04:57,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:57,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-07 02:04:57,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2021-11-07 02:04:57,864 INFO L87 Difference]: Start difference. First operand 205 states and 234 transitions. Second operand has 32 states, 32 states have (on average 2.25) internal successors, (72), 32 states have internal predecessors, (72), 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 02:05:03,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:03,633 INFO L93 Difference]: Finished difference Result 271 states and 297 transitions. [2021-11-07 02:05:03,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-07 02:05:03,634 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.25) internal successors, (72), 32 states have internal predecessors, (72), 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 37 [2021-11-07 02:05:03,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:03,635 INFO L225 Difference]: With dead ends: 271 [2021-11-07 02:05:03,635 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 02:05:03,637 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=639, Invalid=2783, Unknown=0, NotChecked=0, Total=3422 [2021-11-07 02:05:03,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 02:05:03,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 192. [2021-11-07 02:05:03,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 187 states have (on average 1.1764705882352942) internal successors, (220), 191 states have internal predecessors, (220), 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 02:05:03,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 220 transitions. [2021-11-07 02:05:03,650 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 220 transitions. Word has length 37 [2021-11-07 02:05:03,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:03,650 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 220 transitions. [2021-11-07 02:05:03,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.25) internal successors, (72), 32 states have internal predecessors, (72), 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 02:05:03,650 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 220 transitions. [2021-11-07 02:05:03,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 02:05:03,651 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:03,651 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:03,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:03,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:03,875 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:05:03,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:03,875 INFO L85 PathProgramCache]: Analyzing trace with hash -761417087, now seen corresponding path program 1 times [2021-11-07 02:05:03,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:03,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400104255] [2021-11-07 02:05:03,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:03,880 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:03,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:03,882 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:03,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 02:05:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:08,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 1786 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:05:08,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:08,314 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 02:05:08,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:08,488 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 02:05:08,488 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:08,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400104255] [2021-11-07 02:05:08,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400104255] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:08,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:08,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 02:05:08,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848582691] [2021-11-07 02:05:08,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:05:08,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:08,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:05:08,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:05:08,490 INFO L87 Difference]: Start difference. First operand 192 states and 220 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 02:05:08,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:08,825 INFO L93 Difference]: Finished difference Result 276 states and 313 transitions. [2021-11-07 02:05:08,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 02:05:08,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 02:05:08,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:08,827 INFO L225 Difference]: With dead ends: 276 [2021-11-07 02:05:08,827 INFO L226 Difference]: Without dead ends: 225 [2021-11-07 02:05:08,827 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:05:08,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-11-07 02:05:08,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 201. [2021-11-07 02:05:08,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.1581632653061225) internal successors, (227), 200 states have internal predecessors, (227), 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 02:05:08,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 227 transitions. [2021-11-07 02:05:08,841 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 227 transitions. Word has length 39 [2021-11-07 02:05:08,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:08,842 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 227 transitions. [2021-11-07 02:05:08,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 02:05:08,842 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 227 transitions. [2021-11-07 02:05:08,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 02:05:08,843 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:08,843 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:08,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:09,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:09,059 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:05:09,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:09,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1013590275, now seen corresponding path program 1 times [2021-11-07 02:05:09,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:09,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324034269] [2021-11-07 02:05:09,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:09,063 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:09,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:09,064 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:09,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-07 02:05:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:13,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 1786 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:05:13,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:13,883 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 02:05:13,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:14,306 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 02:05:14,307 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:14,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324034269] [2021-11-07 02:05:14,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324034269] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:14,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:14,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 10 [2021-11-07 02:05:14,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483622393] [2021-11-07 02:05:14,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 02:05:14,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:14,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 02:05:14,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:05:14,308 INFO L87 Difference]: Start difference. First operand 201 states and 227 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:15,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:15,512 INFO L93 Difference]: Finished difference Result 264 states and 292 transitions. [2021-11-07 02:05:15,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 02:05:15,512 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 02:05:15,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:15,514 INFO L225 Difference]: With dead ends: 264 [2021-11-07 02:05:15,514 INFO L226 Difference]: Without dead ends: 262 [2021-11-07 02:05:15,514 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2021-11-07 02:05:15,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-11-07 02:05:15,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 201. [2021-11-07 02:05:15,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 196 states have (on average 1.153061224489796) internal successors, (226), 200 states have internal predecessors, (226), 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 02:05:15,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 226 transitions. [2021-11-07 02:05:15,522 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 226 transitions. Word has length 39 [2021-11-07 02:05:15,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:15,522 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 226 transitions. [2021-11-07 02:05:15,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:15,523 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 226 transitions. [2021-11-07 02:05:15,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 02:05:15,523 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:15,523 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:15,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:15,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:15,724 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 02:05:15,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:15,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1059303570, now seen corresponding path program 1 times [2021-11-07 02:05:15,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:15,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979825214] [2021-11-07 02:05:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:15,727 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:15,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:15,728 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:15,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58867620-3b24-4979-bc02-b57281bf729e/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-07 02:09:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:07,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 1786 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-07 02:09:07,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:07,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 02:09:08,028 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-07 02:09:08,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 28 [2021-11-07 02:09:08,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:08,584 INFO L244 Elim1Store]: Index analysis took 103 ms [2021-11-07 02:09:08,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 79 [2021-11-07 02:09:13,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:13,557 INFO L244 Elim1Store]: Index analysis took 145 ms [2021-11-07 02:09:13,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 138 [2021-11-07 02:09:14,078 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-07 02:09:14,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 02:09:14,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 02:09:14,998 INFO L244 Elim1Store]: Index analysis took 113 ms [2021-11-07 02:10:05,789 WARN L207 SmtUtils]: Spent 50.78 s on a formula simplification. DAG size of input: 210 DAG size of output: 72 [2021-11-07 02:10:05,791 INFO L354 Elim1Store]: treesize reduction 1407, result has 11.6 percent of original size [2021-11-07 02:10:05,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 38 disjoint index pairs (out of 45 index pairs), introduced 11 new quantified variables, introduced 8 case distinctions, treesize of input 200 treesize of output 330