./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d2088ac57520281350e2a5a3a1c8295b6f3f6b1edc40c64fce86e2816b5a5aa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:24:37,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:24:37,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:24:37,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:24:37,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:24:37,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:24:37,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:24:37,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:24:37,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:24:37,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:24:37,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:24:37,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:24:37,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:24:37,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:24:37,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:24:37,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:24:37,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:24:37,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:24:37,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:24:37,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:24:37,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:24:37,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:24:37,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:24:37,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:24:37,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:24:37,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:24:37,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:24:37,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:24:37,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:24:37,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:24:37,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:24:37,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:24:37,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:24:37,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:24:37,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:24:37,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:24:37,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:24:37,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:24:37,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:24:37,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:24:38,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:24:38,001 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:24:38,045 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:24:38,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:24:38,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:24:38,048 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:24:38,048 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:24:38,048 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:24:38,048 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:24:38,048 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:24:38,049 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:24:38,049 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:24:38,050 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:24:38,050 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:24:38,050 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:24:38,051 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:24:38,051 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:24:38,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:24:38,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:24:38,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:24:38,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:24:38,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:24:38,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:24:38,053 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:24:38,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:24:38,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:24:38,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:24:38,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:24:38,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:24:38,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:24:38,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:24:38,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:24:38,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:24:38,056 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:24:38,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:24:38,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:24:38,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:24:38,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:24:38,057 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_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d2088ac57520281350e2a5a3a1c8295b6f3f6b1edc40c64fce86e2816b5a5aa [2021-11-07 01:24:38,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:24:38,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:24:38,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:24:38,345 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:24:38,345 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:24:38,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i [2021-11-07 01:24:38,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/data/56a4eb97f/7be27428a05543d0a5337bf5763e7e5d/FLAG65fef83ac [2021-11-07 01:24:39,359 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:24:39,360 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i [2021-11-07 01:24:39,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/data/56a4eb97f/7be27428a05543d0a5337bf5763e7e5d/FLAG65fef83ac [2021-11-07 01:24:39,808 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/data/56a4eb97f/7be27428a05543d0a5337bf5763e7e5d [2021-11-07 01:24:39,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:24:39,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:24:39,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:24:39,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:24:39,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:24:39,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:24:39" (1/1) ... [2021-11-07 01:24:39,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7cb839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:39, skipping insertion in model container [2021-11-07 01:24:39,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:24:39" (1/1) ... [2021-11-07 01:24:39,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:24:39,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:24:40,256 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_b12e8225-50ca-4d6d-90d8-14d9431b82a6/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4497,4510] [2021-11-07 01:24:40,264 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_b12e8225-50ca-4d6d-90d8-14d9431b82a6/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4557,4570] [2021-11-07 01:24:40,288 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:24:40,294 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:24:41,273 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:41,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:41,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:41,275 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:41,276 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:41,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:41,292 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:41,294 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:41,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:41,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:24:41,795 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:24:41,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:24:41,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:24:41,803 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:24:41,807 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:24:41,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:24:41,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:24:41,813 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:24:41,816 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:24:42,030 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:24:42,178 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:42,179 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:42,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:24:42,290 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:24:42,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16294ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:42, skipping insertion in model container [2021-11-07 01:24:42,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:24:42,291 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:24:42,293 INFO L168 Benchmark]: Toolchain (without parser) took 2480.21 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 63.4 MB in the beginning and 77.2 MB in the end (delta: -13.7 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:24:42,294 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 104.9 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:24:42,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2462.19 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 63.2 MB in the beginning and 77.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:24:42,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 104.9 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2462.19 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 63.2 MB in the beginning and 77.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d2088ac57520281350e2a5a3a1c8295b6f3f6b1edc40c64fce86e2816b5a5aa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:24:44,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:24:44,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:24:44,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:24:44,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:24:44,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:24:44,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:24:44,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:24:44,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:24:44,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:24:44,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:24:44,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:24:44,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:24:44,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:24:44,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:24:44,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:24:44,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:24:44,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:24:44,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:24:44,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:24:44,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:24:44,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:24:44,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:24:44,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:24:44,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:24:44,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:24:44,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:24:44,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:24:44,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:24:44,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:24:44,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:24:44,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:24:44,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:24:44,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:24:44,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:24:44,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:24:44,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:24:44,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:24:44,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:24:44,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:24:44,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:24:44,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:24:44,701 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:24:44,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:24:44,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:24:44,705 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:24:44,705 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:24:44,705 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:24:44,705 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:24:44,705 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:24:44,706 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:24:44,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:24:44,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:24:44,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:24:44,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:24:44,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:24:44,709 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:24:44,710 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:24:44,710 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:24:44,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:24:44,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:24:44,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:24:44,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:24:44,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:24:44,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:24:44,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:24:44,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:24:44,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:24:44,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:24:44,712 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:24:44,712 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:24:44,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:24:44,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:24:44,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:24:44,713 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_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d2088ac57520281350e2a5a3a1c8295b6f3f6b1edc40c64fce86e2816b5a5aa [2021-11-07 01:24:45,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:24:45,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:24:45,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:24:45,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:24:45,114 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:24:45,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i [2021-11-07 01:24:45,196 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/data/09de08d3c/f507840bf1bc45a5bda3b59e359bf703/FLAG712bbbcf6 [2021-11-07 01:24:46,188 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:24:46,189 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i [2021-11-07 01:24:46,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/data/09de08d3c/f507840bf1bc45a5bda3b59e359bf703/FLAG712bbbcf6 [2021-11-07 01:24:46,647 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/data/09de08d3c/f507840bf1bc45a5bda3b59e359bf703 [2021-11-07 01:24:46,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:24:46,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:24:46,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:24:46,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:24:46,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:24:46,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:24:46" (1/1) ... [2021-11-07 01:24:46,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e95dffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:46, skipping insertion in model container [2021-11-07 01:24:46,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:24:46" (1/1) ... [2021-11-07 01:24:46,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:24:46,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:24:47,100 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_b12e8225-50ca-4d6d-90d8-14d9431b82a6/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4497,4510] [2021-11-07 01:24:47,107 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_b12e8225-50ca-4d6d-90d8-14d9431b82a6/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4557,4570] [2021-11-07 01:24:47,133 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:24:47,139 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:24:48,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,310 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,311 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,313 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,313 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:48,730 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:24:48,732 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:24:48,733 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:24:48,734 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:24:48,736 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:24:48,737 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:24:48,737 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:24:48,738 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:24:48,739 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:24:48,739 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:24:48,912 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:24:49,067 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,075 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:24:49,269 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:24:49,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:24:49,378 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_b12e8225-50ca-4d6d-90d8-14d9431b82a6/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4497,4510] [2021-11-07 01:24:49,379 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_b12e8225-50ca-4d6d-90d8-14d9431b82a6/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4557,4570] [2021-11-07 01:24:49,381 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:24:49,382 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:24:49,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,461 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,461 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,462 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,480 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,481 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,514 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:24:49,515 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:24:49,516 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:24:49,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:24:49,517 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:24:49,518 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:24:49,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:24:49,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:24:49,519 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:24:49,520 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:24:49,540 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:24:49,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:24:49,670 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:24:49,683 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_b12e8225-50ca-4d6d-90d8-14d9431b82a6/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4497,4510] [2021-11-07 01:24:49,684 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_b12e8225-50ca-4d6d-90d8-14d9431b82a6/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i[4557,4570] [2021-11-07 01:24:49,685 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:24:49,686 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:24:49,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,716 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,716 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,717 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,717 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,755 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:24:49,756 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:24:49,757 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:24:49,757 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:24:49,758 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:24:49,758 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:24:49,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:24:49,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:24:49,760 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:24:49,760 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:24:49,779 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:24:49,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,872 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:24:49,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:24:50,236 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:24:50,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50 WrapperNode [2021-11-07 01:24:50,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:24:50,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:24:50,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:24:50,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:24:50,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:24:50,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:24:50,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:24:50,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:24:50,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:24:50,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:24:50,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:24:50,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:24:50,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (1/1) ... [2021-11-07 01:24:50,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:24:50,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:24:50,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:24:50,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:24:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure htonl [2021-11-07 01:24:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:24:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:24:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:24:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:24:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:24:50,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:24:50,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:24:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:24:50,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:24:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:24:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:24:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:24:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:24:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:24:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:24:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:24:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:25:05,444 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:25:05,445 INFO L299 CfgBuilder]: Removed 89 assume(true) statements. [2021-11-07 01:25:05,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:25:05 BoogieIcfgContainer [2021-11-07 01:25:05,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:25:05,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:25:05,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:25:05,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:25:05,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:24:46" (1/3) ... [2021-11-07 01:25:05,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbb4d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:25:05, skipping insertion in model container [2021-11-07 01:25:05,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:24:50" (2/3) ... [2021-11-07 01:25:05,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbb4d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:25:05, skipping insertion in model container [2021-11-07 01:25:05,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:25:05" (3/3) ... [2021-11-07 01:25:05,455 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be32_harness.i [2021-11-07 01:25:05,460 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:25:05,461 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 01:25:05,518 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:25:05,532 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:25:05,533 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 01:25:05,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 174 states have (on average 1.4827586206896552) internal successors, (258), 185 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:05,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:25:05,566 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:05,567 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:05,570 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:25:05,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:05,581 INFO L85 PathProgramCache]: Analyzing trace with hash 733514216, now seen corresponding path program 1 times [2021-11-07 01:25:05,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:05,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258875178] [2021-11-07 01:25:05,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:05,605 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:05,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:05,608 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:05,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:25:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:09,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:25:09,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:09,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:09,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:10,101 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:10,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258875178] [2021-11-07 01:25:10,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258875178] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:10,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:10,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:25:10,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418716100] [2021-11-07 01:25:10,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:25:10,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:10,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:25:10,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:25:10,125 INFO L87 Difference]: Start difference. First operand has 186 states, 174 states have (on average 1.4827586206896552) internal successors, (258), 185 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:10,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:10,155 INFO L93 Difference]: Finished difference Result 368 states and 511 transitions. [2021-11-07 01:25:10,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:25:10,157 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 01:25:10,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:10,168 INFO L225 Difference]: With dead ends: 368 [2021-11-07 01:25:10,168 INFO L226 Difference]: Without dead ends: 181 [2021-11-07 01:25:10,171 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:25:10,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-07 01:25:10,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-07 01:25:10,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 170 states have (on average 1.3588235294117648) internal successors, (231), 180 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 231 transitions. [2021-11-07 01:25:10,216 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 231 transitions. Word has length 39 [2021-11-07 01:25:10,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:10,216 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 231 transitions. [2021-11-07 01:25:10,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:10,217 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 231 transitions. [2021-11-07 01:25:10,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:25:10,219 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:10,219 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:10,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:10,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:10,441 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:25:10,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:10,445 INFO L85 PathProgramCache]: Analyzing trace with hash 699508844, now seen corresponding path program 1 times [2021-11-07 01:25:10,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:10,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256045881] [2021-11-07 01:25:10,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:10,453 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:10,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:10,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:10,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:25:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:14,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:25:14,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:14,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:14,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:15,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:15,050 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:15,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256045881] [2021-11-07 01:25:15,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256045881] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:15,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:15,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:25:15,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103109931] [2021-11-07 01:25:15,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:25:15,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:15,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:25:15,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:25:15,054 INFO L87 Difference]: Start difference. First operand 181 states and 231 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:15,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:15,442 INFO L93 Difference]: Finished difference Result 336 states and 428 transitions. [2021-11-07 01:25:15,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:25:15,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 01:25:15,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:15,445 INFO L225 Difference]: With dead ends: 336 [2021-11-07 01:25:15,445 INFO L226 Difference]: Without dead ends: 181 [2021-11-07 01:25:15,446 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:15,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-07 01:25:15,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-07 01:25:15,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 170 states have (on average 1.3411764705882352) internal successors, (228), 180 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:15,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 228 transitions. [2021-11-07 01:25:15,472 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 228 transitions. Word has length 39 [2021-11-07 01:25:15,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:15,473 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 228 transitions. [2021-11-07 01:25:15,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:15,474 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 228 transitions. [2021-11-07 01:25:15,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 01:25:15,480 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:15,481 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:15,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:15,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:15,689 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:25:15,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:15,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1277536330, now seen corresponding path program 1 times [2021-11-07 01:25:15,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:15,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625352383] [2021-11-07 01:25:15,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:15,697 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:15,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:15,698 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:15,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:25:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:19,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:25:19,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:20,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:20,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:20,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:20,210 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:20,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625352383] [2021-11-07 01:25:20,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625352383] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:20,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:20,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:25:20,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831986995] [2021-11-07 01:25:20,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:25:20,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:20,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:25:20,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:25:20,212 INFO L87 Difference]: Start difference. First operand 181 states and 228 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:20,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:20,736 INFO L93 Difference]: Finished difference Result 397 states and 508 transitions. [2021-11-07 01:25:20,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:25:20,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-07 01:25:20,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:20,746 INFO L225 Difference]: With dead ends: 397 [2021-11-07 01:25:20,746 INFO L226 Difference]: Without dead ends: 241 [2021-11-07 01:25:20,748 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:25:20,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-07 01:25:20,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 193. [2021-11-07 01:25:20,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 182 states have (on average 1.3186813186813187) internal successors, (240), 192 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 240 transitions. [2021-11-07 01:25:20,769 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 240 transitions. Word has length 51 [2021-11-07 01:25:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:20,769 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 240 transitions. [2021-11-07 01:25:20,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:20,770 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 240 transitions. [2021-11-07 01:25:20,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 01:25:20,777 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:20,777 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:20,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:20,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:20,993 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:25:20,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:20,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1671903116, now seen corresponding path program 1 times [2021-11-07 01:25:20,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:20,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671620828] [2021-11-07 01:25:20,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:20,996 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:20,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:20,997 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:20,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:25:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:25,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 1842 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:25:25,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:25,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-07 01:25:25,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:25,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:26,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-07 01:25:26,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:26,401 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:26,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671620828] [2021-11-07 01:25:26,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671620828] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:26,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:26,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 13 [2021-11-07 01:25:26,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596514852] [2021-11-07 01:25:26,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 01:25:26,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:26,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 01:25:26,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:25:26,403 INFO L87 Difference]: Start difference. First operand 193 states and 240 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:33,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:33,291 INFO L93 Difference]: Finished difference Result 420 states and 528 transitions. [2021-11-07 01:25:33,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 01:25:33,292 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-07 01:25:33,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:33,293 INFO L225 Difference]: With dead ends: 420 [2021-11-07 01:25:33,293 INFO L226 Difference]: Without dead ends: 254 [2021-11-07 01:25:33,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2021-11-07 01:25:33,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-07 01:25:33,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 196. [2021-11-07 01:25:33,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 185 states have (on average 1.318918918918919) internal successors, (244), 195 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:33,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 244 transitions. [2021-11-07 01:25:33,309 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 244 transitions. Word has length 51 [2021-11-07 01:25:33,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:33,310 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 244 transitions. [2021-11-07 01:25:33,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:33,310 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 244 transitions. [2021-11-07 01:25:33,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:25:33,312 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:33,312 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:33,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 01:25:33,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:33,528 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:25:33,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:33,529 INFO L85 PathProgramCache]: Analyzing trace with hash 325189425, now seen corresponding path program 1 times [2021-11-07 01:25:33,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:33,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630896412] [2021-11-07 01:25:33,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:33,532 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:33,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:33,533 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:33,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:25:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:37,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:25:37,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:38,095 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:25:38,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:25:38,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:38,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:38,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:38,821 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:38,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630896412] [2021-11-07 01:25:38,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630896412] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:38,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:38,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:25:38,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521765276] [2021-11-07 01:25:38,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:25:38,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:38,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:25:38,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:25:38,823 INFO L87 Difference]: Start difference. First operand 196 states and 244 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:45,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:25:45,978 INFO L93 Difference]: Finished difference Result 592 states and 733 transitions. [2021-11-07 01:25:45,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:25:45,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-07 01:25:45,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:25:45,984 INFO L225 Difference]: With dead ends: 592 [2021-11-07 01:25:45,985 INFO L226 Difference]: Without dead ends: 416 [2021-11-07 01:25:45,985 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:25:45,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2021-11-07 01:25:46,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 238. [2021-11-07 01:25:46,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 227 states have (on average 1.3127753303964758) internal successors, (298), 237 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:46,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 298 transitions. [2021-11-07 01:25:46,011 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 298 transitions. Word has length 58 [2021-11-07 01:25:46,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:25:46,013 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 298 transitions. [2021-11-07 01:25:46,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:25:46,014 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 298 transitions. [2021-11-07 01:25:46,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:25:46,020 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:25:46,020 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:25:46,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:25:46,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:25:46,221 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:25:46,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:25:46,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1046617873, now seen corresponding path program 1 times [2021-11-07 01:25:46,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:25:46,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916961090] [2021-11-07 01:25:46,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:25:46,225 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:25:46,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:25:46,226 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:25:46,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:25:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:25:50,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 1857 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:25:50,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:25:50,819 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-07 01:25:50,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 203 treesize of output 59 [2021-11-07 01:25:51,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:51,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:25:51,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:25:51,962 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:25:51,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916961090] [2021-11-07 01:25:51,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916961090] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:25:51,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:25:51,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 01:25:51,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237771283] [2021-11-07 01:25:51,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 01:25:51,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:25:51,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 01:25:51,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 01:25:51,964 INFO L87 Difference]: Start difference. First operand 238 states and 298 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:05,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:26:05,206 INFO L93 Difference]: Finished difference Result 735 states and 873 transitions. [2021-11-07 01:26:05,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:26:05,209 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-07 01:26:05,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:26:05,212 INFO L225 Difference]: With dead ends: 735 [2021-11-07 01:26:05,213 INFO L226 Difference]: Without dead ends: 459 [2021-11-07 01:26:05,214 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:26:05,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2021-11-07 01:26:05,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 231. [2021-11-07 01:26:05,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 220 states have (on average 1.2545454545454546) internal successors, (276), 230 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:05,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 276 transitions. [2021-11-07 01:26:05,227 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 276 transitions. Word has length 58 [2021-11-07 01:26:05,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:26:05,227 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 276 transitions. [2021-11-07 01:26:05,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:26:05,228 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 276 transitions. [2021-11-07 01:26:05,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 01:26:05,229 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:26:05,229 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:26:05,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:26:05,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:26:05,447 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:26:05,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:26:05,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1728662275, now seen corresponding path program 1 times [2021-11-07 01:26:05,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:26:05,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16702907] [2021-11-07 01:26:05,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:26:05,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:26:05,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:26:05,453 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:26:05,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12e8225-50ca-4d6d-90d8-14d9431b82a6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:26:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:26:09,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 1875 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 01:26:09,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:26:10,478 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:26:10,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 99 treesize of output 35 [2021-11-07 01:26:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:26:10,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:26:21,095 WARN L207 SmtUtils]: Spent 9.78 s on a formula simplification. DAG size of input: 523 DAG size of output: 269 [2021-11-07 01:26:21,100 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-07 01:26:21,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 129 treesize of output 772