./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e401a4e4197b43467958a92870f8195ba22195c146137fa78352c627ea2eeb40 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:06:39,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:06:39,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:06:39,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:06:39,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:06:39,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:06:39,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:06:39,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:06:39,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:06:39,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:06:39,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:06:39,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:06:39,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:06:39,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:06:39,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:06:39,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:06:39,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:06:39,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:06:39,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:06:40,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:06:40,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:06:40,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:06:40,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:06:40,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:06:40,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:06:40,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:06:40,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:06:40,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:06:40,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:06:40,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:06:40,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:06:40,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:06:40,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:06:40,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:06:40,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:06:40,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:06:40,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:06:40,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:06:40,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:06:40,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:06:40,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:06:40,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:06:40,070 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:06:40,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:06:40,072 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:06:40,072 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:06:40,072 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:06:40,073 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:06:40,073 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:06:40,073 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:06:40,073 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:06:40,074 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:06:40,074 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:06:40,074 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:06:40,074 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:06:40,075 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:06:40,075 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:06:40,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:06:40,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:06:40,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:06:40,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:06:40,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:06:40,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:06:40,078 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:06:40,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:06:40,078 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:06:40,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:06:40,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:06:40,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:06:40,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:06:40,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:06:40,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:06:40,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:06:40,080 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:06:40,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:06:40,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:06:40,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:06:40,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:06:40,082 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_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e401a4e4197b43467958a92870f8195ba22195c146137fa78352c627ea2eeb40 [2021-11-03 04:06:40,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:06:40,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:06:40,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:06:40,399 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:06:40,400 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:06:40,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i [2021-11-03 04:06:40,475 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/data/6b4e282dc/c07040a4c67b4be5899cc6d2485fc2b1/FLAG9490d172b [2021-11-03 04:06:41,527 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:06:41,528 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i [2021-11-03 04:06:41,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/data/6b4e282dc/c07040a4c67b4be5899cc6d2485fc2b1/FLAG9490d172b [2021-11-03 04:06:41,921 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/data/6b4e282dc/c07040a4c67b4be5899cc6d2485fc2b1 [2021-11-03 04:06:41,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:06:41,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:06:41,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:06:41,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:06:41,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:06:41,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:41" (1/1) ... [2021-11-03 04:06:41,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b7e7b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:41, skipping insertion in model container [2021-11-03 04:06:41,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:41" (1/1) ... [2021-11-03 04:06:41,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:06:42,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:06:42,367 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_6f377a84-7999-4ea2-a432-5de23cfe47ab/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i[4502,4515] [2021-11-03 04:06:42,374 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_6f377a84-7999-4ea2-a432-5de23cfe47ab/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i[4562,4575] [2021-11-03 04:06:42,399 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:06:42,406 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:06:43,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:43,726 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:43,727 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:43,730 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:43,732 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:43,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:43,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:43,770 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:43,772 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:44,329 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:06:44,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:06:44,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:06:44,338 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:06:44,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:06:44,340 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:06:44,341 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:06:44,342 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:06:44,342 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:06:44,343 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:06:44,544 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:06:44,705 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:44,707 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:44,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:06:44,901 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 04:06:44,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e446e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:44, skipping insertion in model container [2021-11-03 04:06:44,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:06:44,904 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:06:44,907 INFO L168 Benchmark]: Toolchain (without parser) took 2979.24 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 75.0 MB in the beginning and 76.3 MB in the end (delta: -1.2 MB). Peak memory consumption was 43.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:06:44,908 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 102.8 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:06:44,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2975.52 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 74.8 MB in the beginning and 76.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. [2021-11-03 04:06:44,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 102.8 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2975.52 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 74.8 MB in the beginning and 76.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6984]: 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_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e401a4e4197b43467958a92870f8195ba22195c146137fa78352c627ea2eeb40 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:06:47,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:06:47,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:06:47,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:06:47,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:06:47,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:06:47,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:06:47,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:06:47,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:06:47,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:06:47,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:06:47,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:06:47,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:06:47,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:06:47,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:06:47,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:06:47,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:06:47,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:06:47,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:06:47,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:06:47,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:06:47,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:06:47,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:06:47,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:06:47,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:06:47,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:06:47,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:06:47,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:06:47,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:06:47,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:06:47,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:06:47,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:06:47,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:06:47,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:06:47,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:06:47,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:06:47,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:06:47,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:06:47,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:06:47,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:06:47,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:06:47,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:06:47,433 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:06:47,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:06:47,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:06:47,435 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:06:47,435 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:06:47,435 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:06:47,436 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:06:47,436 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:06:47,436 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:06:47,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:06:47,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:06:47,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:06:47,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:06:47,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:06:47,439 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:06:47,439 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:06:47,439 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:06:47,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:06:47,440 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:06:47,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:06:47,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:06:47,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:06:47,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:06:47,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:06:47,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:06:47,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:06:47,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:06:47,442 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:06:47,442 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:06:47,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:06:47,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:06:47,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:06:47,442 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_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e401a4e4197b43467958a92870f8195ba22195c146137fa78352c627ea2eeb40 [2021-11-03 04:06:47,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:06:47,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:06:47,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:06:47,875 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:06:47,876 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:06:47,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i [2021-11-03 04:06:47,958 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/data/c3ac46599/c4710ee943a946ed8acc236547428f7c/FLAG0872a9626 [2021-11-03 04:06:48,904 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:06:48,905 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i [2021-11-03 04:06:48,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/data/c3ac46599/c4710ee943a946ed8acc236547428f7c/FLAG0872a9626 [2021-11-03 04:06:49,394 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/data/c3ac46599/c4710ee943a946ed8acc236547428f7c [2021-11-03 04:06:49,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:06:49,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:06:49,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:06:49,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:06:49,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:06:49,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:49" (1/1) ... [2021-11-03 04:06:49,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346d7c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:49, skipping insertion in model container [2021-11-03 04:06:49,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:49" (1/1) ... [2021-11-03 04:06:49,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:06:49,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:06:49,907 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_6f377a84-7999-4ea2-a432-5de23cfe47ab/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i[4502,4515] [2021-11-03 04:06:49,915 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_6f377a84-7999-4ea2-a432-5de23cfe47ab/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i[4562,4575] [2021-11-03 04:06:49,951 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:06:49,965 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:06:51,172 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,197 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,198 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,201 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:51,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:06:51,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:06:51,714 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:06:51,715 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:06:51,717 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:06:51,718 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:06:51,718 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:06:51,719 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:06:51,720 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:06:51,721 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:06:51,908 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:06:52,044 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,046 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:06:52,218 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:06:52,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:06:52,273 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_6f377a84-7999-4ea2-a432-5de23cfe47ab/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i[4502,4515] [2021-11-03 04:06:52,274 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_6f377a84-7999-4ea2-a432-5de23cfe47ab/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i[4562,4575] [2021-11-03 04:06:52,275 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:06:52,276 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:06:52,337 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,341 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,343 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,359 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,359 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,457 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:06:52,458 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:06:52,459 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:06:52,460 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:06:52,461 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:06:52,461 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:06:52,462 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:06:52,466 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:06:52,466 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:06:52,467 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:06:52,511 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:06:52,584 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,585 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:06:52,672 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:06:52,686 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_6f377a84-7999-4ea2-a432-5de23cfe47ab/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i[4502,4515] [2021-11-03 04:06:52,687 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_6f377a84-7999-4ea2-a432-5de23cfe47ab/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i[4562,4575] [2021-11-03 04:06:52,688 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 04:06:52,689 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 04:06:52,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,726 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,726 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,733 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,734 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,735 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,735 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,827 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 04:06:52,828 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 04:06:52,828 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 04:06:52,829 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 04:06:52,830 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 04:06:52,831 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 04:06:52,831 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 04:06:52,832 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 04:06:52,832 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 04:06:52,833 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 04:06:52,894 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 04:06:52,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:52,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 04:06:53,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:06:53,311 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:06:53,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53 WrapperNode [2021-11-03 04:06:53,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:06:53,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:06:53,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:06:53,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:06:53,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:06:53,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:06:53,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:06:53,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:06:53,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:06:53,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:06:53,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:06:53,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:06:53,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (1/1) ... [2021-11-03 04:06:53,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:06:53,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:06:53,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:06:53,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:06:53,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:06:53,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:06:53,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:06:53,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:06:53,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:06:53,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:06:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:06:53,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:06:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:06:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:06:53,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:06:53,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:06:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:07:11,126 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:07:11,127 INFO L299 CfgBuilder]: Removed 73 assume(true) statements. [2021-11-03 04:07:11,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:07:11 BoogieIcfgContainer [2021-11-03 04:07:11,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:07:11,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:07:11,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:07:11,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:07:11,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:06:49" (1/3) ... [2021-11-03 04:07:11,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7627d75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:07:11, skipping insertion in model container [2021-11-03 04:07:11,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:53" (2/3) ... [2021-11-03 04:07:11,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7627d75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:07:11, skipping insertion in model container [2021-11-03 04:07:11,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:07:11" (3/3) ... [2021-11-03 04:07:11,140 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_secure_harness.i [2021-11-03 04:07:11,147 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:07:11,147 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 04:07:11,204 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:07:11,210 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:07:11,211 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 04:07:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 154 states have (on average 1.4610389610389611) internal successors, (225), 160 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:11,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 04:07:11,241 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:11,242 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:07:11,242 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:07:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:11,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1283718026, now seen corresponding path program 1 times [2021-11-03 04:07:11,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:07:11,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787913165] [2021-11-03 04:07:11,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:11,296 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:07:11,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:07:11,300 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:07:11,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:07:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:15,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1750 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:07:15,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:07:15,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:15,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:07:16,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:16,020 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:07:16,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787913165] [2021-11-03 04:07:16,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787913165] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:16,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:16,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:07:16,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028063425] [2021-11-03 04:07:16,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:07:16,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:07:16,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:07:16,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:07:16,058 INFO L87 Difference]: Start difference. First operand has 161 states, 154 states have (on average 1.4610389610389611) internal successors, (225), 160 states have internal predecessors, (225), 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 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:16,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:16,114 INFO L93 Difference]: Finished difference Result 318 states and 445 transitions. [2021-11-03 04:07:16,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:07:16,116 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 04:07:16,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:16,126 INFO L225 Difference]: With dead ends: 318 [2021-11-03 04:07:16,127 INFO L226 Difference]: Without dead ends: 156 [2021-11-03 04:07:16,130 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:07:16,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-03 04:07:16,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-11-03 04:07:16,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 150 states have (on average 1.36) internal successors, (204), 155 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:16,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 204 transitions. [2021-11-03 04:07:16,178 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 204 transitions. Word has length 34 [2021-11-03 04:07:16,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:16,179 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 204 transitions. [2021-11-03 04:07:16,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:16,180 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 204 transitions. [2021-11-03 04:07:16,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-03 04:07:16,182 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:16,182 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:07:16,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:07:16,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:07:16,383 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:07:16,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:16,384 INFO L85 PathProgramCache]: Analyzing trace with hash 27354892, now seen corresponding path program 1 times [2021-11-03 04:07:16,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:07:16,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610652294] [2021-11-03 04:07:16,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:16,392 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:07:16,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:07:16,393 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:07:16,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:07:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:20,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 1750 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:07:20,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:07:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:20,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:07:21,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:21,182 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:07:21,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610652294] [2021-11-03 04:07:21,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610652294] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:21,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:21,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:07:21,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128894822] [2021-11-03 04:07:21,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:07:21,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:07:21,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:07:21,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:07:21,187 INFO L87 Difference]: Start difference. First operand 156 states and 204 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:21,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:21,490 INFO L93 Difference]: Finished difference Result 286 states and 374 transitions. [2021-11-03 04:07:21,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:07:21,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-03 04:07:21,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:21,494 INFO L225 Difference]: With dead ends: 286 [2021-11-03 04:07:21,494 INFO L226 Difference]: Without dead ends: 156 [2021-11-03 04:07:21,495 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:21,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-03 04:07:21,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-11-03 04:07:21,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 155 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:21,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 202 transitions. [2021-11-03 04:07:21,509 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 202 transitions. Word has length 34 [2021-11-03 04:07:21,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:21,510 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 202 transitions. [2021-11-03 04:07:21,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:21,510 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 202 transitions. [2021-11-03 04:07:21,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 04:07:21,512 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:21,513 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] [2021-11-03 04:07:21,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 04:07:21,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:07:21,727 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 04:07:21,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:21,728 INFO L85 PathProgramCache]: Analyzing trace with hash -2136977490, now seen corresponding path program 1 times [2021-11-03 04:07:21,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:07:21,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240067850] [2021-11-03 04:07:21,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:21,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:07:21,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:07:21,745 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:07:21,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:07:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:26,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:07:26,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:07:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:26,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:07:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:26,750 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:07:26,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240067850] [2021-11-03 04:07:26,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240067850] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:26,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:26,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:07:26,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777926182] [2021-11-03 04:07:26,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:07:26,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:07:26,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:07:26,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:07:26,759 INFO L87 Difference]: Start difference. First operand 156 states and 202 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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) [2021-11-03 04:07:27,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:27,291 INFO L93 Difference]: Finished difference Result 347 states and 456 transitions. [2021-11-03 04:07:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:07:27,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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 [2021-11-03 04:07:27,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:27,299 INFO L225 Difference]: With dead ends: 347 [2021-11-03 04:07:27,299 INFO L226 Difference]: Without dead ends: 216 [2021-11-03 04:07:27,300 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:07:27,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-03 04:07:27,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 168. [2021-11-03 04:07:27,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 162 states have (on average 1.3209876543209877) internal successors, (214), 167 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:27,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 214 transitions. [2021-11-03 04:07:27,316 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 214 transitions. Word has length 46 [2021-11-03 04:07:27,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:27,317 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 214 transitions. [2021-11-03 04:07:27,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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) [2021-11-03 04:07:27,317 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 214 transitions. [2021-11-03 04:07:27,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 04:07:27,320 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:27,320 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] [2021-11-03 04:07:27,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:07:27,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:07:27,521 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)] === [2021-11-03 04:07:27,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:27,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1456389932, now seen corresponding path program 1 times [2021-11-03 04:07:27,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:07:27,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236060756] [2021-11-03 04:07:27,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:27,528 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:07:27,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:07:27,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:07:27,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:07:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:32,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 04:07:32,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:07:32,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 04:07:33,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:33,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:07:33,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-03 04:07:33,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:33,762 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:07:33,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236060756] [2021-11-03 04:07:33,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236060756] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:33,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:33,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-03 04:07:33,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149722152] [2021-11-03 04:07:33,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-03 04:07:33,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:07:33,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-03 04:07:33,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-03 04:07:33,770 INFO L87 Difference]: Start difference. First operand 168 states and 214 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:48,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:07:48,755 INFO L93 Difference]: Finished difference Result 347 states and 445 transitions. [2021-11-03 04:07:48,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-03 04:07:48,757 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-03 04:07:48,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:07:48,759 INFO L225 Difference]: With dead ends: 347 [2021-11-03 04:07:48,759 INFO L226 Difference]: Without dead ends: 206 [2021-11-03 04:07:48,760 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2021-11-03 04:07:48,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-03 04:07:48,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 164. [2021-11-03 04:07:48,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 158 states have (on average 1.3164556962025316) internal successors, (208), 163 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:48,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 208 transitions. [2021-11-03 04:07:48,775 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 208 transitions. Word has length 46 [2021-11-03 04:07:48,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:07:48,776 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 208 transitions. [2021-11-03 04:07:48,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:07:48,776 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 208 transitions. [2021-11-03 04:07:48,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 04:07:48,779 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:07:48,779 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:07:48,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 04:07:48,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:07:48,994 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)] === [2021-11-03 04:07:48,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:07:48,995 INFO L85 PathProgramCache]: Analyzing trace with hash -738588498, now seen corresponding path program 1 times [2021-11-03 04:07:48,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:07:49,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080583589] [2021-11-03 04:07:49,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:07:49,000 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:07:49,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:07:49,001 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:07:49,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:07:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:07:53,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:07:53,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:07:54,270 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:07:54,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 04:07:54,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:54,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:07:55,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:07:55,169 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:07:55,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080583589] [2021-11-03 04:07:55,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080583589] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:07:55,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:07:55,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 04:07:55,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815390049] [2021-11-03 04:07:55,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:07:55,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:07:55,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:07:55,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:07:55,172 INFO L87 Difference]: Start difference. First operand 164 states and 208 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:08:07,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:08:07,442 INFO L93 Difference]: Finished difference Result 499 states and 628 transitions. [2021-11-03 04:08:07,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:08:07,446 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-03 04:08:07,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:08:07,449 INFO L225 Difference]: With dead ends: 499 [2021-11-03 04:08:07,450 INFO L226 Difference]: Without dead ends: 355 [2021-11-03 04:08:07,450 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:08:07,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-11-03 04:08:07,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 202. [2021-11-03 04:08:07,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 196 states have (on average 1.3061224489795917) internal successors, (256), 201 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:08:07,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 256 transitions. [2021-11-03 04:08:07,473 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 256 transitions. Word has length 54 [2021-11-03 04:08:07,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:08:07,476 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 256 transitions. [2021-11-03 04:08:07,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:08:07,477 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 256 transitions. [2021-11-03 04:08:07,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 04:08:07,485 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:08:07,486 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:08:07,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:08:07,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:08:07,710 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)] === [2021-11-03 04:08:07,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:08:07,711 INFO L85 PathProgramCache]: Analyzing trace with hash -710253458, now seen corresponding path program 1 times [2021-11-03 04:08:07,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:08:07,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067377645] [2021-11-03 04:08:07,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:08:07,717 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:08:07,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:08:07,718 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:08:07,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:08:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:08:12,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 1785 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:08:12,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:08:12,923 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:08:12,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-03 04:08:13,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:08:13,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:08:14,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:08:14,360 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:08:14,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067377645] [2021-11-03 04:08:14,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067377645] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:08:14,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:08:14,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-11-03 04:08:14,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145250906] [2021-11-03 04:08:14,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 04:08:14,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:08:14,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 04:08:14,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-03 04:08:14,364 INFO L87 Difference]: Start difference. First operand 202 states and 256 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:08:33,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:08:33,010 INFO L93 Difference]: Finished difference Result 588 states and 705 transitions. [2021-11-03 04:08:33,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 04:08:33,014 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-03 04:08:33,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:08:33,018 INFO L225 Difference]: With dead ends: 588 [2021-11-03 04:08:33,019 INFO L226 Difference]: Without dead ends: 327 [2021-11-03 04:08:33,020 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2021-11-03 04:08:33,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-11-03 04:08:33,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 190. [2021-11-03 04:08:33,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 184 states have (on average 1.2282608695652173) internal successors, (226), 189 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:08:33,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 226 transitions. [2021-11-03 04:08:33,035 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 226 transitions. Word has length 54 [2021-11-03 04:08:33,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:08:33,035 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 226 transitions. [2021-11-03 04:08:33,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:08:33,036 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 226 transitions. [2021-11-03 04:08:33,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-03 04:08:33,038 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:08:33,038 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:08:33,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:08:33,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:08:33,262 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)] === [2021-11-03 04:08:33,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:08:33,263 INFO L85 PathProgramCache]: Analyzing trace with hash -869117129, now seen corresponding path program 1 times [2021-11-03 04:08:33,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:08:33,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234782501] [2021-11-03 04:08:33,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:08:33,270 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:08:33,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:08:33,276 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:08:33,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f377a84-7999-4ea2-a432-5de23cfe47ab/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:08:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:08:38,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 04:08:38,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:08:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:08:39,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:08:54,563 WARN L207 SmtUtils]: Spent 14.00 s on a formula simplification. DAG size of input: 526 DAG size of output: 272 [2021-11-03 04:08:54,568 INFO L354 Elim1Store]: treesize reduction 897, result has 45.1 percent of original size [2021-11-03 04:08:54,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 132 treesize of output 771