./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.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_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/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_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/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_a3efff69-db1f-4cd5-9171-afedf084c9d5/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 6e8329de8885610e11451d8b1311f161005fbaac7c4b7180f37a9501d850f1ce --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:05:59,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:05:59,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:05:59,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:05:59,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:05:59,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:05:59,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:05:59,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:05:59,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:05:59,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:05:59,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:05:59,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:05:59,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:05:59,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:05:59,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:05:59,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:05:59,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:05:59,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:05:59,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:05:59,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:05:59,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:05:59,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:05:59,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:05:59,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:05:59,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:05:59,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:05:59,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:05:59,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:05:59,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:05:59,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:05:59,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:05:59,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:05:59,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:05:59,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:05:59,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:05:59,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:05:59,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:05:59,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:05:59,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:05:59,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:05:59,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:05:59,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:05:59,448 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:05:59,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:05:59,450 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:05:59,450 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:05:59,450 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:05:59,450 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:05:59,451 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:05:59,451 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:05:59,451 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:05:59,451 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:05:59,452 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:05:59,452 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:05:59,453 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:05:59,453 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:05:59,453 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:05:59,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:05:59,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:05:59,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:05:59,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:05:59,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:05:59,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:05:59,455 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:05:59,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:05:59,455 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:05:59,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:05:59,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:05:59,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:05:59,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:05:59,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:05:59,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:05:59,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:05:59,457 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:05:59,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:05:59,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:05:59,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:05:59,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:05:59,458 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_a3efff69-db1f-4cd5-9171-afedf084c9d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e8329de8885610e11451d8b1311f161005fbaac7c4b7180f37a9501d850f1ce [2021-11-07 01:05:59,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:05:59,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:05:59,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:05:59,817 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:05:59,818 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:05:59,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i [2021-11-07 01:05:59,896 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/data/25665c7c5/27a17b15bd1f4454a5461c92c74e8f6b/FLAG9f44febb7 [2021-11-07 01:06:00,834 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:06:00,835 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i [2021-11-07 01:06:00,885 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/data/25665c7c5/27a17b15bd1f4454a5461c92c74e8f6b/FLAG9f44febb7 [2021-11-07 01:06:01,239 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/data/25665c7c5/27a17b15bd1f4454a5461c92c74e8f6b [2021-11-07 01:06:01,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:06:01,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:06:01,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:01,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:06:01,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:06:01,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:01" (1/1) ... [2021-11-07 01:06:01,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf9d017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:01, skipping insertion in model container [2021-11-07 01:06:01,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:01" (1/1) ... [2021-11-07 01:06:01,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:06:01,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:06:01,686 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4492,4505] [2021-11-07 01:06:01,699 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_a3efff69-db1f-4cd5-9171-afedf084c9d5/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4552,4565] [2021-11-07 01:06:01,729 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:01,744 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:02,707 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:02,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:02,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:02,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:02,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:02,729 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:02,734 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:02,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:02,746 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,222 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:03,223 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:03,226 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:03,229 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:03,234 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:03,236 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:03,237 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:03,239 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:03,242 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:03,243 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:03,416 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:03,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:03,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:03,650 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 01:06:03,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@38d7e91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:03, skipping insertion in model container [2021-11-07 01:06:03,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:03,651 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:06:03,653 INFO L168 Benchmark]: Toolchain (without parser) took 2409.28 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 50.0 MB in the beginning and 79.2 MB in the end (delta: -29.3 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:06:03,654 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory was 67.2 MB in the beginning and 67.2 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:06:03,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2406.87 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 50.0 MB in the beginning and 79.2 MB in the end (delta: -29.3 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:06:03,656 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory was 67.2 MB in the beginning and 67.2 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2406.87 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 50.0 MB in the beginning and 79.2 MB in the end (delta: -29.3 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/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_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/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_a3efff69-db1f-4cd5-9171-afedf084c9d5/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 6e8329de8885610e11451d8b1311f161005fbaac7c4b7180f37a9501d850f1ce --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:06:05,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:06:05,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:06:05,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:06:05,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:06:05,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:06:05,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:06:05,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:06:05,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:06:05,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:06:05,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:06:05,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:06:05,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:06:05,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:06:05,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:06:05,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:06:05,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:06:05,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:06:05,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:06:05,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:06:05,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:06:05,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:06:05,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:06:05,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:06:05,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:06:05,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:06:05,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:06:05,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:06:05,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:06:05,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:06:05,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:06:05,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:06:05,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:06:05,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:06:05,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:06:05,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:06:05,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:06:05,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:06:05,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:06:05,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:06:05,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:06:05,888 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:06:05,933 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:06:05,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:06:05,937 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:06:05,937 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:06:05,937 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:06:05,937 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:06:05,938 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:06:05,938 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:06:05,938 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:06:05,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:06:05,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:06:05,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:06:05,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:06:05,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:06:05,942 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:06:05,942 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:06:05,942 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:06:05,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:06:05,942 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:06:05,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:06:05,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:06:05,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:06:05,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:06:05,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:06:05,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:06:05,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:06:05,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:06:05,945 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:06:05,945 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:06:05,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:06:05,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:06:05,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:06:05,946 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_a3efff69-db1f-4cd5-9171-afedf084c9d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e8329de8885610e11451d8b1311f161005fbaac7c4b7180f37a9501d850f1ce [2021-11-07 01:06:06,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:06:06,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:06:06,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:06:06,316 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:06:06,317 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:06:06,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i [2021-11-07 01:06:06,388 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/data/683f6d207/cd9458583fc64315b849268983f1daad/FLAGf15fa8b6f [2021-11-07 01:06:07,389 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:06:07,393 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i [2021-11-07 01:06:07,441 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/data/683f6d207/cd9458583fc64315b849268983f1daad/FLAGf15fa8b6f [2021-11-07 01:06:07,809 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/data/683f6d207/cd9458583fc64315b849268983f1daad [2021-11-07 01:06:07,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:06:07,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:06:07,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:07,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:06:07,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:06:07,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:07" (1/1) ... [2021-11-07 01:06:07,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57da17b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:07, skipping insertion in model container [2021-11-07 01:06:07,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:06:07" (1/1) ... [2021-11-07 01:06:07,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:06:07,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:06:08,257 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_a3efff69-db1f-4cd5-9171-afedf084c9d5/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4492,4505] [2021-11-07 01:06:08,264 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_a3efff69-db1f-4cd5-9171-afedf084c9d5/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4552,4565] [2021-11-07 01:06:08,287 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:08,292 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:09,059 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:09,062 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:09,063 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:09,064 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:09,067 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:09,090 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:09,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:09,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:09,101 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:09,479 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:09,480 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:09,481 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:09,482 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:09,484 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:09,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:09,485 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:09,486 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:09,487 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:09,487 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:09,662 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:09,833 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:09,834 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:09,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:09,992 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:06:10,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:06:10,049 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4492,4505] [2021-11-07 01:06:10,049 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4552,4565] [2021-11-07 01:06:10,051 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:10,051 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:10,102 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,103 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,103 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,104 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,110 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,111 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,112 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,112 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,144 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:10,145 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:10,146 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:10,146 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:10,147 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:10,148 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:10,148 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:10,149 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:10,149 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:10,149 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:10,169 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:10,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:10,335 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:06:10,359 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_a3efff69-db1f-4cd5-9171-afedf084c9d5/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4492,4505] [2021-11-07 01:06:10,359 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_a3efff69-db1f-4cd5-9171-afedf084c9d5/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness-1.i[4552,4565] [2021-11-07 01:06:10,360 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 01:06:10,361 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 01:06:10,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,427 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 01:06:10,427 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 01:06:10,428 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 01:06:10,428 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 01:06:10,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 01:06:10,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 01:06:10,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 01:06:10,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 01:06:10,431 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 01:06:10,431 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 01:06:10,449 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 01:06:10,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,543 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 01:06:10,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:06:10,974 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:06:10,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:10 WrapperNode [2021-11-07 01:06:10,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:06:10,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:06:10,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:06:10,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:06:10,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:10" (1/1) ... [2021-11-07 01:06:11,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:10" (1/1) ... [2021-11-07 01:06:11,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:06:11,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:06:11,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:06:11,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:06:11,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:10" (1/1) ... [2021-11-07 01:06:11,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:10" (1/1) ... [2021-11-07 01:06:11,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:10" (1/1) ... [2021-11-07 01:06:11,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:10" (1/1) ... [2021-11-07 01:06:11,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:10" (1/1) ... [2021-11-07 01:06:11,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:10" (1/1) ... [2021-11-07 01:06:11,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:10" (1/1) ... [2021-11-07 01:06:11,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:06:11,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:06:11,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:06:11,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:06:11,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:10" (1/1) ... [2021-11-07 01:06:11,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:06:11,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:06:11,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:06:11,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:06:11,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:06:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:06:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:06:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:06:11,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:06:11,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:06:11,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:06:11,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:06:11,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:06:11,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:06:11,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:06:11,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:06:24,973 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:06:24,973 INFO L299 CfgBuilder]: Removed 73 assume(true) statements. [2021-11-07 01:06:24,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:06:24 BoogieIcfgContainer [2021-11-07 01:06:24,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:06:24,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:06:24,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:06:24,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:06:24,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:06:07" (1/3) ... [2021-11-07 01:06:24,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72edc003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:06:24, skipping insertion in model container [2021-11-07 01:06:24,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:06:10" (2/3) ... [2021-11-07 01:06:24,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72edc003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:06:24, skipping insertion in model container [2021-11-07 01:06:24,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:06:24" (3/3) ... [2021-11-07 01:06:24,984 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_eq_c_str_harness-1.i [2021-11-07 01:06:24,989 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:06:24,989 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 01:06:25,035 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:06:25,041 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:06:25,041 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 01:06:25,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 75 states have (on average 1.5066666666666666) internal successors, (113), 80 states have internal predecessors, (113), 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 01:06:25,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:06:25,060 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:25,061 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] [2021-11-07 01:06:25,062 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:06:25,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:25,067 INFO L85 PathProgramCache]: Analyzing trace with hash 857180983, now seen corresponding path program 1 times [2021-11-07 01:06:25,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:25,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139838419] [2021-11-07 01:06:25,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:25,090 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:25,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:25,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:25,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:06:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:29,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:06:29,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:29,370 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 01:06:29,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:29,500 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 01:06:29,500 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:29,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139838419] [2021-11-07 01:06:29,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139838419] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:29,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:06:29,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:06:29,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070274259] [2021-11-07 01:06:29,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:06:29,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:29,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:06:29,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:06:29,531 INFO L87 Difference]: Start difference. First operand has 81 states, 75 states have (on average 1.5066666666666666) internal successors, (113), 80 states have internal predecessors, (113), 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 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:29,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:29,567 INFO L93 Difference]: Finished difference Result 159 states and 222 transitions. [2021-11-07 01:06:29,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:06:29,569 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-07 01:06:29,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:29,581 INFO L225 Difference]: With dead ends: 159 [2021-11-07 01:06:29,582 INFO L226 Difference]: Without dead ends: 75 [2021-11-07 01:06:29,587 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 58 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 01:06:29,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-07 01:06:29,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-11-07 01:06:29,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 74 states have internal predecessors, (87), 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 01:06:29,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2021-11-07 01:06:29,636 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 30 [2021-11-07 01:06:29,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:29,637 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2021-11-07 01:06:29,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2021-11-07 01:06:29,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:06:29,639 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:29,639 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] [2021-11-07 01:06:29,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:06:29,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:06:29,854 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:06:29,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:29,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1256337345, now seen corresponding path program 1 times [2021-11-07 01:06:29,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:29,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498964972] [2021-11-07 01:06:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:29,860 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:29,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:29,861 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:29,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:06:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:33,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:06:33,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:34,205 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 01:06:34,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:34,359 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 01:06:34,359 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:34,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498964972] [2021-11-07 01:06:34,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498964972] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:34,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:06:34,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:06:34,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766575088] [2021-11-07 01:06:34,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:06:34,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:34,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:06:34,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:06:34,362 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:34,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:34,508 INFO L93 Difference]: Finished difference Result 175 states and 205 transitions. [2021-11-07 01:06:34,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:06:34,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-07 01:06:34,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:34,511 INFO L225 Difference]: With dead ends: 175 [2021-11-07 01:06:34,511 INFO L226 Difference]: Without dead ends: 128 [2021-11-07 01:06:34,512 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:06:34,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-07 01:06:34,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 81. [2021-11-07 01:06:34,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 76 states have (on average 1.236842105263158) internal successors, (94), 80 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:34,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2021-11-07 01:06:34,523 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 30 [2021-11-07 01:06:34,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:34,523 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2021-11-07 01:06:34,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:34,524 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2021-11-07 01:06:34,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:06:34,525 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:34,525 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] [2021-11-07 01:06:34,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:06:34,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:06:34,726 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:06:34,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:34,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1044485245, now seen corresponding path program 1 times [2021-11-07 01:06:34,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:34,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496555877] [2021-11-07 01:06:34,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:34,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:34,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:34,731 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:34,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:06:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:38,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:06:38,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:39,075 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 01:06:39,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:39,328 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 01:06:39,328 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:39,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496555877] [2021-11-07 01:06:39,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496555877] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:39,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:06:39,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-07 01:06:39,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540890900] [2021-11-07 01:06:39,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:06:39,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:39,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:06:39,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:06:39,330 INFO L87 Difference]: Start difference. First operand 81 states and 94 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 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 01:06:39,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:39,650 INFO L93 Difference]: Finished difference Result 128 states and 149 transitions. [2021-11-07 01:06:39,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:06:39,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 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 30 [2021-11-07 01:06:39,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:39,651 INFO L225 Difference]: With dead ends: 128 [2021-11-07 01:06:39,651 INFO L226 Difference]: Without dead ends: 75 [2021-11-07 01:06:39,652 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:06:39,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-07 01:06:39,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-11-07 01:06:39,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 70 states have (on average 1.2142857142857142) internal successors, (85), 74 states have internal predecessors, (85), 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 01:06:39,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2021-11-07 01:06:39,658 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 30 [2021-11-07 01:06:39,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:39,660 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2021-11-07 01:06:39,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 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 01:06:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2021-11-07 01:06:39,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:06:39,662 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:39,662 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 01:06:39,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 01:06:39,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:06:39,863 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:06:39,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:39,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1966230668, now seen corresponding path program 1 times [2021-11-07 01:06:39,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:39,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242012336] [2021-11-07 01:06:39,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:39,867 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:39,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:39,868 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:39,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:06:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:43,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 1766 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:06:43,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:44,946 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 01:06:44,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:45,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:06:45,909 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:45,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242012336] [2021-11-07 01:06:45,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242012336] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:45,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:06:45,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 9] imperfect sequences [] total 18 [2021-11-07 01:06:45,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237847818] [2021-11-07 01:06:45,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-07 01:06:45,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:45,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 01:06:45,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2021-11-07 01:06:45,912 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand has 18 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:48,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:48,145 INFO L93 Difference]: Finished difference Result 259 states and 297 transitions. [2021-11-07 01:06:48,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-07 01:06:48,145 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 01:06:48,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:48,147 INFO L225 Difference]: With dead ends: 259 [2021-11-07 01:06:48,147 INFO L226 Difference]: Without dead ends: 230 [2021-11-07 01:06:48,149 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=254, Invalid=868, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 01:06:48,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-07 01:06:48,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 123. [2021-11-07 01:06:48,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 118 states have (on average 1.2033898305084745) internal successors, (142), 122 states have internal predecessors, (142), 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 01:06:48,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2021-11-07 01:06:48,164 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 39 [2021-11-07 01:06:48,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:48,165 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2021-11-07 01:06:48,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 18 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:06:48,165 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2021-11-07 01:06:48,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:06:48,167 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:48,167 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 01:06:48,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:06:48,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:06:48,382 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:06:48,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:48,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1920978139, now seen corresponding path program 1 times [2021-11-07 01:06:48,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:48,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136885629] [2021-11-07 01:06:48,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:48,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:48,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:48,388 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:48,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:06:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:52,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 1768 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:06:52,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:52,387 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 01:06:52,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:52,475 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 01:06:52,476 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:52,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136885629] [2021-11-07 01:06:52,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136885629] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:52,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:06:52,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:06:52,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709949031] [2021-11-07 01:06:52,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:06:52,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:52,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:06:52,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:06:52,477 INFO L87 Difference]: Start difference. First operand 123 states and 142 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 01:06:52,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:52,523 INFO L93 Difference]: Finished difference Result 168 states and 194 transitions. [2021-11-07 01:06:52,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:06:52,526 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 01:06:52,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:52,527 INFO L225 Difference]: With dead ends: 168 [2021-11-07 01:06:52,528 INFO L226 Difference]: Without dead ends: 139 [2021-11-07 01:06:52,528 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 01:06:52,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-07 01:06:52,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 127. [2021-11-07 01:06:52,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 122 states have (on average 1.1967213114754098) internal successors, (146), 126 states have internal predecessors, (146), 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 01:06:52,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2021-11-07 01:06:52,539 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 39 [2021-11-07 01:06:52,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:52,539 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2021-11-07 01:06:52,539 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 01:06:52,540 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2021-11-07 01:06:52,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 01:06:52,541 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:52,542 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] [2021-11-07 01:06:52,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:06:52,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:06:52,758 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:06:52,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:52,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1487483217, now seen corresponding path program 1 times [2021-11-07 01:06:52,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:52,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099355161] [2021-11-07 01:06:52,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:52,763 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:52,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:52,764 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:52,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:06:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:56,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 01:06:56,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:57,458 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 01:06:57,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:58,358 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 01:06:58,358 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:58,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099355161] [2021-11-07 01:06:58,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099355161] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:58,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:06:58,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 10] imperfect sequences [] total 20 [2021-11-07 01:06:58,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244455767] [2021-11-07 01:06:58,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-07 01:06:58,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:58,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 01:06:58,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2021-11-07 01:06:58,362 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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 01:07:02,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:02,342 INFO L93 Difference]: Finished difference Result 283 states and 316 transitions. [2021-11-07 01:07:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-07 01:07:02,343 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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 42 [2021-11-07 01:07:02,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:02,345 INFO L225 Difference]: With dead ends: 283 [2021-11-07 01:07:02,345 INFO L226 Difference]: Without dead ends: 253 [2021-11-07 01:07:02,347 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=415, Invalid=1307, Unknown=0, NotChecked=0, Total=1722 [2021-11-07 01:07:02,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-11-07 01:07:02,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 127. [2021-11-07 01:07:02,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 122 states have (on average 1.1967213114754098) internal successors, (146), 126 states have internal predecessors, (146), 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 01:07:02,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2021-11-07 01:07:02,358 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 42 [2021-11-07 01:07:02,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:02,358 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2021-11-07 01:07:02,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.9) internal successors, (78), 20 states have internal predecessors, (78), 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 01:07:02,359 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2021-11-07 01:07:02,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 01:07:02,361 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:02,361 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] [2021-11-07 01:07:02,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:02,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:02,574 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:07:02,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:02,574 INFO L85 PathProgramCache]: Analyzing trace with hash -278045387, now seen corresponding path program 1 times [2021-11-07 01:07:02,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:02,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260314163] [2021-11-07 01:07:02,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:02,579 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:02,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:02,580 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:02,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:07:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:06,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 01:07:06,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:07,060 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 01:07:07,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:07,362 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 01:07:07,362 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:07,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260314163] [2021-11-07 01:07:07,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1260314163] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:07,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:07,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 10 [2021-11-07 01:07:07,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360197323] [2021-11-07 01:07:07,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:07:07,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:07,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:07:07,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:07:07,364 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 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 01:07:08,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:08,097 INFO L93 Difference]: Finished difference Result 197 states and 230 transitions. [2021-11-07 01:07:08,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:07:08,100 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 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 42 [2021-11-07 01:07:08,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:08,101 INFO L225 Difference]: With dead ends: 197 [2021-11-07 01:07:08,101 INFO L226 Difference]: Without dead ends: 187 [2021-11-07 01:07:08,102 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:07:08,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-11-07 01:07:08,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 179. [2021-11-07 01:07:08,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.1896551724137931) internal successors, (207), 178 states have internal predecessors, (207), 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 01:07:08,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 207 transitions. [2021-11-07 01:07:08,116 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 207 transitions. Word has length 42 [2021-11-07 01:07:08,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:08,116 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 207 transitions. [2021-11-07 01:07:08,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 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 01:07:08,117 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 207 transitions. [2021-11-07 01:07:08,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 01:07:08,118 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:08,119 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] [2021-11-07 01:07:08,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-07 01:07:08,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:08,342 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 01:07:08,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:08,342 INFO L85 PathProgramCache]: Analyzing trace with hash 824502604, now seen corresponding path program 1 times [2021-11-07 01:07:08,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:08,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54483659] [2021-11-07 01:07:08,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:08,346 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:08,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:08,352 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:08,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3efff69-db1f-4cd5-9171-afedf084c9d5/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process