./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_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_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/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_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/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_44e978e4-f55f-4441-b491-7f60af4de4c9/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 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:21:24,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:21:24,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:21:25,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:21:25,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:21:25,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:21:25,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:21:25,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:21:25,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:21:25,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:21:25,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:21:25,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:21:25,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:21:25,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:21:25,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:21:25,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:21:25,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:21:25,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:21:25,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:21:25,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:21:25,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:21:25,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:21:25,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:21:25,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:21:25,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:21:25,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:21:25,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:21:25,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:21:25,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:21:25,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:21:25,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:21:25,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:21:25,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:21:25,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:21:25,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:21:25,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:21:25,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:21:25,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:21:25,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:21:25,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:21:25,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:21:25,089 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:21:25,114 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:21:25,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:21:25,120 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:21:25,121 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:21:25,121 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:21:25,121 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:21:25,122 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:21:25,122 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:21:25,125 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:21:25,126 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:21:25,126 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:21:25,126 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:21:25,127 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:21:25,127 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:21:25,128 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:21:25,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:21:25,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:21:25,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:21:25,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:21:25,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:21:25,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:21:25,130 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:21:25,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:21:25,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:21:25,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:21:25,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:21:25,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:21:25,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:21:25,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:21:25,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:21:25,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:21:25,134 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:21:25,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:21:25,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:21:25,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:21:25,136 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:21:25,136 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_44e978e4-f55f-4441-b491-7f60af4de4c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa [2021-11-07 01:21:25,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:21:25,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:21:25,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:21:25,461 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:21:25,462 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:21:25,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-07 01:21:25,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/data/11ad9ddf3/d0ce34179072477ab61272230bb5748a/FLAG33db9877e [2021-11-07 01:21:26,492 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:21:26,493 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-07 01:21:26,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/data/11ad9ddf3/d0ce34179072477ab61272230bb5748a/FLAG33db9877e [2021-11-07 01:21:26,910 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/data/11ad9ddf3/d0ce34179072477ab61272230bb5748a [2021-11-07 01:21:26,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:21:26,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:21:26,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:21:26,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:21:26,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:21:26,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:26" (1/1) ... [2021-11-07 01:21:26,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb06a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:26, skipping insertion in model container [2021-11-07 01:21:26,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:26" (1/1) ... [2021-11-07 01:21:26,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:21:27,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:21:27,395 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_44e978e4-f55f-4441-b491-7f60af4de4c9/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-07 01:21:27,406 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_44e978e4-f55f-4441-b491-7f60af4de4c9/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-07 01:21:27,432 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:21:27,447 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:21:28,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:28,536 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:28,536 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:28,537 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:28,538 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:28,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:28,554 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:28,556 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:28,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:28,991 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:21:28,992 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:21:28,994 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:21:28,995 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:21:28,997 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:21:28,998 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:21:28,999 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:21:28,999 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:21:29,000 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:21:29,001 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:21:29,256 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:21:29,362 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:29,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:29,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:21:29,611 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 01:21:29,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5906d65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:29, skipping insertion in model container [2021-11-07 01:21:29,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:21:29,613 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:21:29,617 INFO L168 Benchmark]: Toolchain (without parser) took 2700.56 ms. Allocated memory was 123.7 MB in the beginning and 165.7 MB in the end (delta: 41.9 MB). Free memory was 79.8 MB in the beginning and 125.9 MB in the end (delta: -46.2 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:21:29,617 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 123.7 MB. Free memory was 97.6 MB in the beginning and 97.6 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:21:29,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2695.83 ms. Allocated memory was 123.7 MB in the beginning and 165.7 MB in the end (delta: 41.9 MB). Free memory was 79.5 MB in the beginning and 125.9 MB in the end (delta: -46.4 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:21:29,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 123.7 MB. Free memory was 97.6 MB in the beginning and 97.6 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2695.83 ms. Allocated memory was 123.7 MB in the beginning and 165.7 MB in the end (delta: 41.9 MB). Free memory was 79.5 MB in the beginning and 125.9 MB in the end (delta: -46.4 MB). Peak memory consumption was 40.9 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_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/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_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/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_44e978e4-f55f-4441-b491-7f60af4de4c9/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 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:21:31,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:21:31,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:21:32,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:21:32,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:21:32,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:21:32,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:21:32,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:21:32,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:21:32,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:21:32,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:21:32,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:21:32,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:21:32,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:21:32,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:21:32,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:21:32,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:21:32,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:21:32,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:21:32,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:21:32,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:21:32,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:21:32,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:21:32,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:21:32,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:21:32,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:21:32,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:21:32,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:21:32,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:21:32,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:21:32,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:21:32,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:21:32,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:21:32,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:21:32,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:21:32,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:21:32,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:21:32,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:21:32,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:21:32,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:21:32,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:21:32,106 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:21:32,154 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:21:32,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:21:32,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:21:32,158 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:21:32,158 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:21:32,158 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:21:32,159 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:21:32,159 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:21:32,159 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:21:32,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:21:32,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:21:32,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:21:32,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:21:32,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:21:32,163 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:21:32,163 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:21:32,163 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:21:32,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:21:32,164 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:21:32,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:21:32,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:21:32,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:21:32,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:21:32,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:21:32,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:21:32,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:21:32,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:21:32,166 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:21:32,166 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:21:32,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:21:32,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:21:32,167 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:21:32,167 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_44e978e4-f55f-4441-b491-7f60af4de4c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa [2021-11-07 01:21:32,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:21:32,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:21:32,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:21:32,665 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:21:32,666 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:21:32,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-07 01:21:32,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/data/1ab687c4f/6a800bfceb224876a1ea640d4bc8c4d4/FLAG99d06373b [2021-11-07 01:21:33,819 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:21:33,820 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-07 01:21:33,866 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/data/1ab687c4f/6a800bfceb224876a1ea640d4bc8c4d4/FLAG99d06373b [2021-11-07 01:21:34,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/data/1ab687c4f/6a800bfceb224876a1ea640d4bc8c4d4 [2021-11-07 01:21:34,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:21:34,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:21:34,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:21:34,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:21:34,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:21:34,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:34" (1/1) ... [2021-11-07 01:21:34,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5643ea29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:34, skipping insertion in model container [2021-11-07 01:21:34,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:21:34" (1/1) ... [2021-11-07 01:21:34,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:21:34,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:21:34,834 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_44e978e4-f55f-4441-b491-7f60af4de4c9/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-07 01:21:34,842 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_44e978e4-f55f-4441-b491-7f60af4de4c9/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-07 01:21:34,871 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:21:34,878 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:21:36,340 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:36,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:36,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:36,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:36,346 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:36,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:36,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:36,373 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:36,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:36,970 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:21:36,972 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:21:36,974 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:21:36,976 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:21:36,982 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:21:36,983 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:21:36,984 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:21:36,985 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:21:36,987 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:21:36,988 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:21:37,199 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:21:37,353 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:37,354 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:37,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:21:37,607 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:21:37,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:21:37,662 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_44e978e4-f55f-4441-b491-7f60af4de4c9/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-07 01:21:37,662 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_44e978e4-f55f-4441-b491-7f60af4de4c9/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-07 01:21:37,664 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:21:37,665 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:21:37,726 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:37,727 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:37,727 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:37,730 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:37,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:37,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:37,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:37,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:37,754 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:37,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:21:37,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:21:37,813 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:21:37,814 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:21:37,815 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:21:37,815 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:21:37,816 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:21:37,820 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:21:37,821 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:21:37,822 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:21:37,852 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:21:37,935 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:37,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:38,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:21:38,038 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:21:38,051 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_44e978e4-f55f-4441-b491-7f60af4de4c9/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4499,4512] [2021-11-07 01:21:38,052 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i[4559,4572] [2021-11-07 01:21:38,053 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:21:38,054 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:21:38,082 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:38,085 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:38,085 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:38,086 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:38,086 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:38,092 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:38,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:38,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:38,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:38,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:21:38,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:21:38,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:21:38,133 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:21:38,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:21:38,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:21:38,135 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:21:38,135 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:21:38,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:21:38,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:21:38,184 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:21:38,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:38,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:21:38,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:21:38,806 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:21:38,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:38 WrapperNode [2021-11-07 01:21:38,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:21:38,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:21:38,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:21:38,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:21:38,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:38" (1/1) ... [2021-11-07 01:21:38,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:38" (1/1) ... [2021-11-07 01:21:39,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:21:39,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:21:39,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:21:39,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:21:39,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:38" (1/1) ... [2021-11-07 01:21:39,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:38" (1/1) ... [2021-11-07 01:21:39,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:38" (1/1) ... [2021-11-07 01:21:39,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:38" (1/1) ... [2021-11-07 01:21:39,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:38" (1/1) ... [2021-11-07 01:21:39,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:38" (1/1) ... [2021-11-07 01:21:39,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:38" (1/1) ... [2021-11-07 01:21:39,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:21:39,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:21:39,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:21:39,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:21:39,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:38" (1/1) ... [2021-11-07 01:21:39,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:21:39,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:21:39,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:21:39,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:21:39,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:21:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:21:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:21:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-07 01:21:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:21:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:21:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:21:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:21:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:21:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:21:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:21:39,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:21:39,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:21:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:21:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:21:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:21:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 01:21:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:21:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:21:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:21:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:21:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-07 01:21:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-07 01:21:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-07 01:21:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:21:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:21:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:21:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:21:55,551 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !true; [2021-11-07 01:21:55,560 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:21:55,560 INFO L299 CfgBuilder]: Removed 84 assume(true) statements. [2021-11-07 01:21:55,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:21:55 BoogieIcfgContainer [2021-11-07 01:21:55,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:21:55,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:21:55,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:21:55,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:21:55,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:21:34" (1/3) ... [2021-11-07 01:21:55,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6905f761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:21:55, skipping insertion in model container [2021-11-07 01:21:55,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:21:38" (2/3) ... [2021-11-07 01:21:55,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6905f761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:21:55, skipping insertion in model container [2021-11-07 01:21:55,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:21:55" (3/3) ... [2021-11-07 01:21:55,572 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_array_harness.i [2021-11-07 01:21:55,578 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:21:55,579 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 01:21:55,632 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:21:55,644 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 01:21:55,644 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 01:21:55,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 90 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:21:55,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:21:55,677 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:21:55,678 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] [2021-11-07 01:21:55,679 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:21:55,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:21:55,690 INFO L85 PathProgramCache]: Analyzing trace with hash -2112400035, now seen corresponding path program 1 times [2021-11-07 01:21:55,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:21:55,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263764222] [2021-11-07 01:21:55,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:21:55,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:21:55,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:21:55,727 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:21:55,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:22:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:00,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:22:00,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:00,377 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 01:22:00,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:00,474 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 01:22:00,475 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:00,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263764222] [2021-11-07 01:22:00,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263764222] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:00,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:00,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:22:00,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052204218] [2021-11-07 01:22:00,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:22:00,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:00,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:22:00,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:22:00,505 INFO L87 Difference]: Start difference. First operand has 91 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 90 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 01:22:00,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:00,533 INFO L93 Difference]: Finished difference Result 177 states and 232 transitions. [2021-11-07 01:22:00,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:22:00,535 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2021-11-07 01:22:00,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:00,545 INFO L225 Difference]: With dead ends: 177 [2021-11-07 01:22:00,546 INFO L226 Difference]: Without dead ends: 85 [2021-11-07 01:22:00,549 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 48 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 01:22:00,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-07 01:22:00,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-07 01:22:00,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.2151898734177216) internal successors, (96), 84 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:00,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2021-11-07 01:22:00,595 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 25 [2021-11-07 01:22:00,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:00,596 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2021-11-07 01:22:00,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 01:22:00,596 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2021-11-07 01:22:00,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:22:00,597 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:00,598 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] [2021-11-07 01:22:00,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:00,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:00,807 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:22:00,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:00,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1235816865, now seen corresponding path program 1 times [2021-11-07 01:22:00,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:00,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143951207] [2021-11-07 01:22:00,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:00,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:00,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:00,819 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:00,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:22:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:05,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:22:05,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:05,433 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 01:22:05,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:05,532 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 01:22:05,532 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:05,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143951207] [2021-11-07 01:22:05,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143951207] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:05,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:05,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:22:05,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771736527] [2021-11-07 01:22:05,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:22:05,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:05,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:22:05,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:22:05,537 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 01:22:05,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:05,699 INFO L93 Difference]: Finished difference Result 180 states and 203 transitions. [2021-11-07 01:22:05,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:22:05,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 25 [2021-11-07 01:22:05,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:05,703 INFO L225 Difference]: With dead ends: 180 [2021-11-07 01:22:05,703 INFO L226 Difference]: Without dead ends: 150 [2021-11-07 01:22:05,705 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:22:05,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-07 01:22:05,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 88. [2021-11-07 01:22:05,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 87 states have internal predecessors, (99), 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 01:22:05,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2021-11-07 01:22:05,719 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 25 [2021-11-07 01:22:05,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:05,719 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2021-11-07 01:22:05,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 01:22:05,720 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2021-11-07 01:22:05,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-07 01:22:05,721 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:05,721 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:22:05,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:05,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:05,943 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:22:05,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:05,944 INFO L85 PathProgramCache]: Analyzing trace with hash 293799461, now seen corresponding path program 1 times [2021-11-07 01:22:05,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:05,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081914766] [2021-11-07 01:22:05,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:05,949 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:05,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:05,958 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:05,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:22:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:10,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:22:10,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:10,349 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 01:22:10,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:10,446 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 01:22:10,446 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:10,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081914766] [2021-11-07 01:22:10,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081914766] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:10,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:10,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:22:10,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601921621] [2021-11-07 01:22:10,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:22:10,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:10,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:22:10,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:22:10,449 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:10,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:10,573 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2021-11-07 01:22:10,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:22:10,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-07 01:22:10,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:10,576 INFO L225 Difference]: With dead ends: 118 [2021-11-07 01:22:10,576 INFO L226 Difference]: Without dead ends: 88 [2021-11-07 01:22:10,577 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 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 01:22:10,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-07 01:22:10,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2021-11-07 01:22:10,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 84 states have internal predecessors, (94), 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 01:22:10,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2021-11-07 01:22:10,586 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 27 [2021-11-07 01:22:10,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:10,591 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2021-11-07 01:22:10,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2021-11-07 01:22:10,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 01:22:10,593 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:10,593 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] [2021-11-07 01:22:10,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:10,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:10,816 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:22:10,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:10,817 INFO L85 PathProgramCache]: Analyzing trace with hash 659600795, now seen corresponding path program 1 times [2021-11-07 01:22:10,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:10,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104235368] [2021-11-07 01:22:10,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:10,821 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:10,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:10,822 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:10,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:22:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:15,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:22:15,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:15,615 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 01:22:15,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:15,804 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 01:22:15,805 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:15,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104235368] [2021-11-07 01:22:15,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104235368] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:15,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:15,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:22:15,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769320093] [2021-11-07 01:22:15,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:22:15,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:15,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:22:15,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:22:15,807 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 01:22:15,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:15,944 INFO L93 Difference]: Finished difference Result 228 states and 256 transitions. [2021-11-07 01:22:15,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:22:15,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 46 [2021-11-07 01:22:15,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:15,948 INFO L225 Difference]: With dead ends: 228 [2021-11-07 01:22:15,948 INFO L226 Difference]: Without dead ends: 182 [2021-11-07 01:22:15,949 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:22:15,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-07 01:22:15,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 88. [2021-11-07 01:22:15,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 87 states have internal predecessors, (97), 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 01:22:15,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2021-11-07 01:22:15,961 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 46 [2021-11-07 01:22:15,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:15,962 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2021-11-07 01:22:15,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 01:22:15,962 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2021-11-07 01:22:15,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 01:22:15,964 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:15,965 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] [2021-11-07 01:22:16,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:16,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:16,182 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:22:16,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:16,183 INFO L85 PathProgramCache]: Analyzing trace with hash 20122135, now seen corresponding path program 1 times [2021-11-07 01:22:16,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:16,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998081956] [2021-11-07 01:22:16,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:16,190 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:16,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:16,192 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:16,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:22:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:20,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 1808 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 01:22:20,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:21,171 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 01:22:21,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:21,445 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 01:22:21,445 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:21,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998081956] [2021-11-07 01:22:21,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998081956] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:21,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:21,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 01:22:21,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088565506] [2021-11-07 01:22:21,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:22:21,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:21,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:22:21,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:22:21,449 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:21,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:21,846 INFO L93 Difference]: Finished difference Result 139 states and 154 transitions. [2021-11-07 01:22:21,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 01:22:21,857 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-07 01:22:21,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:21,858 INFO L225 Difference]: With dead ends: 139 [2021-11-07 01:22:21,859 INFO L226 Difference]: Without dead ends: 83 [2021-11-07 01:22:21,860 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:22:21,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-07 01:22:21,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-11-07 01:22:21,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 77 states have (on average 1.1688311688311688) internal successors, (90), 82 states have internal predecessors, (90), 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 01:22:21,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 90 transitions. [2021-11-07 01:22:21,869 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 90 transitions. Word has length 48 [2021-11-07 01:22:21,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:21,869 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 90 transitions. [2021-11-07 01:22:21,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:21,870 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2021-11-07 01:22:21,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 01:22:21,872 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:21,872 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] [2021-11-07 01:22:21,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:22,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:22,091 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:22:22,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:22,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1019144308, now seen corresponding path program 1 times [2021-11-07 01:22:22,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:22,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728613921] [2021-11-07 01:22:22,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:22,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:22,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:22,099 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:22,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:22:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:26,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 1813 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 01:22:26,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:27,309 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 01:22:27,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:22:27,498 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 01:22:27,498 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:22:27,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728613921] [2021-11-07 01:22:27,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728613921] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:22:27,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:22:27,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-07 01:22:27,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891016690] [2021-11-07 01:22:27,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 01:22:27,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:22:27,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 01:22:27,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:22:27,501 INFO L87 Difference]: Start difference. First operand 83 states and 90 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:28,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:22:28,107 INFO L93 Difference]: Finished difference Result 121 states and 131 transitions. [2021-11-07 01:22:28,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:22:28,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-07 01:22:28,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:22:28,109 INFO L225 Difference]: With dead ends: 121 [2021-11-07 01:22:28,109 INFO L226 Difference]: Without dead ends: 83 [2021-11-07 01:22:28,110 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:22:28,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-07 01:22:28,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-11-07 01:22:28,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 77 states have (on average 1.155844155844156) internal successors, (89), 82 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:28,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2021-11-07 01:22:28,120 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 49 [2021-11-07 01:22:28,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:22:28,121 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2021-11-07 01:22:28,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:22:28,131 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2021-11-07 01:22:28,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 01:22:28,133 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:22:28,134 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] [2021-11-07 01:22:28,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:22:28,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:22:28,335 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 01:22:28,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:22:28,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1500815626, now seen corresponding path program 1 times [2021-11-07 01:22:28,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:22:28,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046202329] [2021-11-07 01:22:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:22:28,340 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:22:28,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:22:28,341 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:22:28,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e978e4-f55f-4441-b491-7f60af4de4c9/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:22:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:22:32,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-07 01:22:32,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:22:33,874 INFO L354 Elim1Store]: treesize reduction 1099, result has 7.0 percent of original size [2021-11-07 01:22:33,875 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 7 case distinctions, treesize of input 70 treesize of output 95 [2021-11-07 01:22:34,556 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-07 01:22:34,556 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 158 treesize of output 66 [2021-11-07 01:22:35,329 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 01:22:35,329 INFO L328 TraceCheckSpWp]: Computing backward predicates...