./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_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_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/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_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/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_2c4291fc-41e1-416a-99f5-37229c9f10c1/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 e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:09:50,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:09:50,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:09:50,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:09:50,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:09:50,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:09:50,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:09:50,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:09:50,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:09:50,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:09:50,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:09:50,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:09:50,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:09:50,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:09:50,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:09:50,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:09:50,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:09:50,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:09:50,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:09:50,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:09:50,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:09:50,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:09:50,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:09:50,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:09:50,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:09:50,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:09:50,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:09:50,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:09:50,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:09:50,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:09:50,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:09:50,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:09:50,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:09:50,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:09:50,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:09:50,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:09:50,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:09:50,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:09:50,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:09:50,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:09:50,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:09:50,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:09:50,450 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:09:50,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:09:50,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:09:50,452 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:09:50,453 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:09:50,453 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:09:50,453 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:09:50,454 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:09:50,462 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:09:50,462 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:09:50,464 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:09:50,464 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:09:50,465 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:09:50,465 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:09:50,465 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:09:50,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:09:50,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:09:50,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:09:50,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:09:50,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:09:50,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:09:50,469 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:09:50,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:09:50,469 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:09:50,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:09:50,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:09:50,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:09:50,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:09:50,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:09:50,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:09:50,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:09:50,475 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:09:50,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:09:50,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:09:50,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:09:50,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:09:50,476 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_2c4291fc-41e1-416a-99f5-37229c9f10c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 [2021-11-07 01:09:50,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:09:50,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:09:50,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:09:50,858 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:09:50,859 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:09:50,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2021-11-07 01:09:50,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/data/2a2dd16e4/e00cf44785c04554859a00ccc231994e/FLAGe74717cee [2021-11-07 01:09:52,121 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:09:52,122 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2021-11-07 01:09:52,170 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/data/2a2dd16e4/e00cf44785c04554859a00ccc231994e/FLAGe74717cee [2021-11-07 01:09:52,449 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/data/2a2dd16e4/e00cf44785c04554859a00ccc231994e [2021-11-07 01:09:52,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:09:52,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:09:52,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:09:52,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:09:52,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:09:52,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:52,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63da5c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52, skipping insertion in model container [2021-11-07 01:09:52,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:52,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:09:52,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:09:53,065 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2021-11-07 01:09:53,078 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_2c4291fc-41e1-416a-99f5-37229c9f10c1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2021-11-07 01:09:53,118 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:09:53,138 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:09:54,664 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:09:54,666 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:09:54,666 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:09:54,669 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:09:54,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:09:54,707 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:09:54,714 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:09:54,718 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:09:54,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:09:55,451 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:09:55,452 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:09:55,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:09:55,457 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:09:55,465 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:09:55,467 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:09:55,468 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:09:55,470 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:09:55,474 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:09:55,475 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:09:55,724 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:09:55,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:09:55,826 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:09:56,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:09:56,068 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:09:56,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2ef189c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:56, skipping insertion in model container [2021-11-07 01:09:56,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:09:56,069 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:09:56,072 INFO L168 Benchmark]: Toolchain (without parser) took 3616.79 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 62.2 MB in the beginning and 96.4 MB in the end (delta: -34.2 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:09:56,073 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 104.9 MB. Free memory is still 57.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:09:56,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3598.91 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 62.1 MB in the beginning and 96.4 MB in the end (delta: -34.4 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:09:56,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 104.9 MB. Free memory is still 57.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3598.91 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 62.1 MB in the beginning and 96.4 MB in the end (delta: -34.4 MB). Peak memory consumption was 36.9 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_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/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_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/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_2c4291fc-41e1-416a-99f5-37229c9f10c1/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 e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:09:59,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:09:59,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:09:59,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:09:59,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:09:59,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:09:59,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:09:59,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:09:59,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:09:59,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:09:59,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:09:59,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:09:59,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:09:59,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:09:59,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:09:59,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:09:59,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:09:59,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:09:59,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:09:59,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:09:59,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:09:59,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:09:59,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:09:59,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:09:59,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:09:59,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:09:59,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:09:59,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:09:59,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:09:59,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:09:59,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:09:59,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:09:59,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:09:59,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:09:59,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:09:59,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:09:59,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:09:59,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:09:59,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:09:59,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:09:59,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:09:59,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:09:59,288 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:09:59,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:09:59,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:09:59,290 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:09:59,290 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:09:59,290 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:09:59,290 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:09:59,291 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:09:59,291 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:09:59,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:09:59,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:09:59,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:09:59,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:09:59,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:09:59,293 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:09:59,294 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:09:59,294 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:09:59,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:09:59,294 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:09:59,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:09:59,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:09:59,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:09:59,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:09:59,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:09:59,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:09:59,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:09:59,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:09:59,297 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:09:59,297 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:09:59,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:09:59,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:09:59,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:09:59,298 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_2c4291fc-41e1-416a-99f5-37229c9f10c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e59944759baac4a78b3b5460ff6f3a8abaec03123fb9537d86aeca785269fb41 [2021-11-07 01:09:59,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:09:59,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:09:59,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:09:59,757 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:09:59,758 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:09:59,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2021-11-07 01:09:59,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/data/5863af5b7/7dbd47f037564c2aa3d3759e37ae2abd/FLAGd20e17f04 [2021-11-07 01:10:00,924 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:10:00,925 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i [2021-11-07 01:10:01,002 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/data/5863af5b7/7dbd47f037564c2aa3d3759e37ae2abd/FLAGd20e17f04 [2021-11-07 01:10:01,347 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/data/5863af5b7/7dbd47f037564c2aa3d3759e37ae2abd [2021-11-07 01:10:01,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:10:01,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:10:01,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:10:01,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:10:01,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:10:01,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:10:01" (1/1) ... [2021-11-07 01:10:01,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69664651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:01, skipping insertion in model container [2021-11-07 01:10:01,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:10:01" (1/1) ... [2021-11-07 01:10:01,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:10:01,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:10:01,860 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_2c4291fc-41e1-416a-99f5-37229c9f10c1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2021-11-07 01:10:01,875 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_2c4291fc-41e1-416a-99f5-37229c9f10c1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2021-11-07 01:10:01,910 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:10:01,917 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:10:03,133 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:03,134 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:03,135 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:03,136 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:03,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:03,160 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:03,161 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:03,164 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:03,165 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:03,750 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:10:03,752 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:10:03,754 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:10:03,756 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:10:03,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:10:03,760 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:10:03,761 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:10:03,762 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:10:03,763 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:10:03,764 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:10:04,059 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:10:04,234 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:04,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:04,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:10:04,434 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:10:04,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:10:04,501 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_2c4291fc-41e1-416a-99f5-37229c9f10c1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2021-11-07 01:10:04,502 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_2c4291fc-41e1-416a-99f5-37229c9f10c1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2021-11-07 01:10:04,504 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:10:04,505 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:10:04,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:04,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:04,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:04,568 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:04,570 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:04,583 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:04,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:04,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:04,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:04,677 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:10:04,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:10:04,695 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:10:04,697 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:10:04,699 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:10:04,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:10:04,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:10:04,705 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:10:04,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:10:04,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:10:04,752 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:10:04,896 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:04,896 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:04,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:10:05,015 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:10:05,042 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_2c4291fc-41e1-416a-99f5-37229c9f10c1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4497,4510] [2021-11-07 01:10:05,049 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_2c4291fc-41e1-416a-99f5-37229c9f10c1/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be16_harness.i[4557,4570] [2021-11-07 01:10:05,051 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:10:05,052 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:10:05,109 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:05,109 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:05,110 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:05,110 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:05,111 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:05,121 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:05,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:05,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:05,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:05,215 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:10:05,216 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:10:05,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:10:05,218 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:10:05,220 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:10:05,221 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:10:05,222 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:10:05,223 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:10:05,224 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:10:05,225 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:10:05,260 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:10:05,365 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:05,366 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:10:05,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:10:05,957 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:10:05,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:05 WrapperNode [2021-11-07 01:10:05,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:10:05,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:10:05,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:10:05,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:10:05,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:05" (1/1) ... [2021-11-07 01:10:06,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:05" (1/1) ... [2021-11-07 01:10:06,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:10:06,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:10:06,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:10:06,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:10:06,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:05" (1/1) ... [2021-11-07 01:10:06,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:05" (1/1) ... [2021-11-07 01:10:06,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:05" (1/1) ... [2021-11-07 01:10:06,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:05" (1/1) ... [2021-11-07 01:10:06,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:05" (1/1) ... [2021-11-07 01:10:06,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:05" (1/1) ... [2021-11-07 01:10:06,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:05" (1/1) ... [2021-11-07 01:10:06,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:10:06,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:10:06,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:10:06,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:10:06,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:05" (1/1) ... [2021-11-07 01:10:06,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:10:06,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:10:06,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:10:06,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:10:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure htons [2021-11-07 01:10:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:10:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:10:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:10:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:10:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:10:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:10:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:10:06,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:10:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:10:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:10:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:10:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:10:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:10:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:10:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:10:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:10:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:10:25,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:10:25,943 INFO L299 CfgBuilder]: Removed 89 assume(true) statements. [2021-11-07 01:10:25,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:10:25 BoogieIcfgContainer [2021-11-07 01:10:25,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:10:25,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:10:25,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:10:25,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:10:25,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:10:01" (1/3) ... [2021-11-07 01:10:25,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b5525b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:10:25, skipping insertion in model container [2021-11-07 01:10:25,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:05" (2/3) ... [2021-11-07 01:10:25,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b5525b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:10:25, skipping insertion in model container [2021-11-07 01:10:25,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:10:25" (3/3) ... [2021-11-07 01:10:25,956 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be16_harness.i [2021-11-07 01:10:25,963 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:10:25,963 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 01:10:26,033 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:10:26,041 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:10:26,043 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 01:10:26,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 174 states have (on average 1.4827586206896552) internal successors, (258), 185 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:26,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:10:26,091 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:10:26,093 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 01:10:26,097 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:10:26,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:10:26,112 INFO L85 PathProgramCache]: Analyzing trace with hash 733514216, now seen corresponding path program 1 times [2021-11-07 01:10:26,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:10:26,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042395579] [2021-11-07 01:10:26,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:10:26,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:10:26,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:10:26,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:10:26,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:10:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:10:31,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:10:31,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:10:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:10:31,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:10:32,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:10:32,236 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:10:32,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042395579] [2021-11-07 01:10:32,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042395579] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:10:32,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:10:32,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:10:32,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456909080] [2021-11-07 01:10:32,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:10:32,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:10:32,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:10:32,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:10:32,263 INFO L87 Difference]: Start difference. First operand has 186 states, 174 states have (on average 1.4827586206896552) internal successors, (258), 185 states have internal predecessors, (258), 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 19.5) internal successors, (39), 2 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 01:10:32,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:10:32,307 INFO L93 Difference]: Finished difference Result 368 states and 511 transitions. [2021-11-07 01:10:32,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:10:32,309 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 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 39 [2021-11-07 01:10:32,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:10:32,324 INFO L225 Difference]: With dead ends: 368 [2021-11-07 01:10:32,324 INFO L226 Difference]: Without dead ends: 181 [2021-11-07 01:10:32,328 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 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 01:10:32,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-07 01:10:32,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-07 01:10:32,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 170 states have (on average 1.3588235294117648) internal successors, (231), 180 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:32,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 231 transitions. [2021-11-07 01:10:32,409 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 231 transitions. Word has length 39 [2021-11-07 01:10:32,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:10:32,409 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 231 transitions. [2021-11-07 01:10:32,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 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 01:10:32,410 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 231 transitions. [2021-11-07 01:10:32,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:10:32,415 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:10:32,415 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 01:10:32,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:10:32,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:10:32,617 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:10:32,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:10:32,618 INFO L85 PathProgramCache]: Analyzing trace with hash 699508844, now seen corresponding path program 1 times [2021-11-07 01:10:32,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:10:32,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857050854] [2021-11-07 01:10:32,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:10:32,623 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:10:32,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:10:32,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:10:32,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:10:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:10:38,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:10:38,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:10:38,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:10:38,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:10:38,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:10:38,665 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:10:38,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857050854] [2021-11-07 01:10:38,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [857050854] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:10:38,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:10:38,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:10:38,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403399138] [2021-11-07 01:10:38,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:10:38,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:10:38,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:10:38,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:10:38,670 INFO L87 Difference]: Start difference. First operand 181 states and 231 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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 01:10:39,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:10:39,173 INFO L93 Difference]: Finished difference Result 336 states and 428 transitions. [2021-11-07 01:10:39,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:10:39,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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 39 [2021-11-07 01:10:39,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:10:39,177 INFO L225 Difference]: With dead ends: 336 [2021-11-07 01:10:39,177 INFO L226 Difference]: Without dead ends: 181 [2021-11-07 01:10:39,179 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:10:39,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-07 01:10:39,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-07 01:10:39,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 170 states have (on average 1.3411764705882352) internal successors, (228), 180 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:39,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 228 transitions. [2021-11-07 01:10:39,202 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 228 transitions. Word has length 39 [2021-11-07 01:10:39,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:10:39,202 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 228 transitions. [2021-11-07 01:10:39,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 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 01:10:39,203 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 228 transitions. [2021-11-07 01:10:39,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 01:10:39,205 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:10:39,206 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:10:39,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:10:39,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:10:39,431 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:10:39,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:10:39,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1277536330, now seen corresponding path program 1 times [2021-11-07 01:10:39,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:10:39,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866878198] [2021-11-07 01:10:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:10:39,437 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:10:39,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:10:39,438 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:10:39,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:10:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:10:44,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:10:44,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:10:45,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:10:45,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:10:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:10:45,316 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:10:45,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866878198] [2021-11-07 01:10:45,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866878198] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:10:45,317 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:10:45,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:10:45,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612900756] [2021-11-07 01:10:45,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:10:45,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:10:45,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:10:45,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:10:45,320 INFO L87 Difference]: Start difference. First operand 181 states and 228 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:45,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:10:45,857 INFO L93 Difference]: Finished difference Result 397 states and 508 transitions. [2021-11-07 01:10:45,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:10:45,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-07 01:10:45,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:10:45,861 INFO L225 Difference]: With dead ends: 397 [2021-11-07 01:10:45,861 INFO L226 Difference]: Without dead ends: 241 [2021-11-07 01:10:45,863 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:10:45,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-07 01:10:45,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 193. [2021-11-07 01:10:45,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 182 states have (on average 1.3186813186813187) internal successors, (240), 192 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:45,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 240 transitions. [2021-11-07 01:10:45,890 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 240 transitions. Word has length 51 [2021-11-07 01:10:45,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:10:45,891 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 240 transitions. [2021-11-07 01:10:45,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:10:45,892 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 240 transitions. [2021-11-07 01:10:45,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 01:10:45,894 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:10:45,895 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:10:45,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:10:46,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:10:46,099 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:10:46,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:10:46,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1671903116, now seen corresponding path program 1 times [2021-11-07 01:10:46,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:10:46,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773030465] [2021-11-07 01:10:46,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:10:46,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:10:46,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:10:46,108 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:10:46,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:10:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:10:51,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 1842 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:10:51,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:10:51,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 18 treesize of output 14 [2021-11-07 01:10:52,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:10:52,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:10:52,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-07 01:10:53,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:10:53,122 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:10:53,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773030465] [2021-11-07 01:10:53,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773030465] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:10:53,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:10:53,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 01:10:53,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596194030] [2021-11-07 01:10:53,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:10:53,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:10:53,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:10:53,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:10:53,126 INFO L87 Difference]: Start difference. First operand 193 states and 240 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 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 01:11:00,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:00,663 INFO L93 Difference]: Finished difference Result 420 states and 528 transitions. [2021-11-07 01:11:00,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 01:11:00,664 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 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 51 [2021-11-07 01:11:00,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:00,667 INFO L225 Difference]: With dead ends: 420 [2021-11-07 01:11:00,667 INFO L226 Difference]: Without dead ends: 254 [2021-11-07 01:11:00,669 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2021-11-07 01:11:00,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-07 01:11:00,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 196. [2021-11-07 01:11:00,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 185 states have (on average 1.318918918918919) internal successors, (244), 195 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:00,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 244 transitions. [2021-11-07 01:11:00,686 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 244 transitions. Word has length 51 [2021-11-07 01:11:00,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:00,687 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 244 transitions. [2021-11-07 01:11:00,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 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 01:11:00,688 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 244 transitions. [2021-11-07 01:11:00,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:11:00,691 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:00,691 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:11:00,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 01:11:00,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:00,907 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:11:00,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:00,907 INFO L85 PathProgramCache]: Analyzing trace with hash 325189425, now seen corresponding path program 1 times [2021-11-07 01:11:00,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:00,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980519374] [2021-11-07 01:11:00,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:00,913 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:00,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:00,915 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:00,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:11:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:06,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:11:06,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:06,760 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:11:06,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:11:07,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:07,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:07,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:07,660 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:07,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980519374] [2021-11-07 01:11:07,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980519374] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:07,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:07,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:11:07,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821681925] [2021-11-07 01:11:07,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:11:07,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:07,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:11:07,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:11:07,663 INFO L87 Difference]: Start difference. First operand 196 states and 244 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:16,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:16,437 INFO L93 Difference]: Finished difference Result 592 states and 733 transitions. [2021-11-07 01:11:16,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:11:16,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-07 01:11:16,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:16,444 INFO L225 Difference]: With dead ends: 592 [2021-11-07 01:11:16,445 INFO L226 Difference]: Without dead ends: 416 [2021-11-07 01:11:16,446 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:11:16,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2021-11-07 01:11:16,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 238. [2021-11-07 01:11:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 227 states have (on average 1.3127753303964758) internal successors, (298), 237 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:16,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 298 transitions. [2021-11-07 01:11:16,463 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 298 transitions. Word has length 58 [2021-11-07 01:11:16,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:16,464 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 298 transitions. [2021-11-07 01:11:16,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:16,464 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 298 transitions. [2021-11-07 01:11:16,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:11:16,467 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:16,468 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:11:16,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:16,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:16,683 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:11:16,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:16,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1046617873, now seen corresponding path program 1 times [2021-11-07 01:11:16,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:16,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926135845] [2021-11-07 01:11:16,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:16,689 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:16,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:16,690 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:16,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:11:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:21,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1857 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:11:21,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:22,479 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:11:22,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:11:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:23,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:23,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:23,960 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:23,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926135845] [2021-11-07 01:11:23,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926135845] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:23,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:23,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 01:11:23,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546275614] [2021-11-07 01:11:23,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:11:23,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:23,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:11:23,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:11:23,963 INFO L87 Difference]: Start difference. First operand 238 states and 298 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:39,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:39,326 INFO L93 Difference]: Finished difference Result 735 states and 873 transitions. [2021-11-07 01:11:39,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:11:39,331 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-07 01:11:39,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:39,336 INFO L225 Difference]: With dead ends: 735 [2021-11-07 01:11:39,336 INFO L226 Difference]: Without dead ends: 459 [2021-11-07 01:11:39,338 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:11:39,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-11-07 01:11:39,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 231. [2021-11-07 01:11:39,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 220 states have (on average 1.2545454545454546) internal successors, (276), 230 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:39,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 276 transitions. [2021-11-07 01:11:39,355 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 276 transitions. Word has length 58 [2021-11-07 01:11:39,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:39,356 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 276 transitions. [2021-11-07 01:11:39,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:39,356 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 276 transitions. [2021-11-07 01:11:39,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 01:11:39,358 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:39,359 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:11:39,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 01:11:39,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:39,583 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:11:39,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:39,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1728662275, now seen corresponding path program 1 times [2021-11-07 01:11:39,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:39,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119800015] [2021-11-07 01:11:39,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:39,588 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:39,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:39,589 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:39,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c4291fc-41e1-416a-99f5-37229c9f10c1/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:11:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:45,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 1875 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 01:11:45,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:46,050 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:11:46,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 35 [2021-11-07 01:11:46,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:46,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:59,707 WARN L207 SmtUtils]: Spent 12.59 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 01:11:59,714 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 01:11:59,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 129 treesize of output 772