./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/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_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/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_ac524418-215b-465d-be39-9dce00e82adc/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 99ee682e10e695b9eb1615836043680c46e24c4df6227faaade6163d2feea99e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:09:23,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:09:23,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:09:23,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:09:23,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:09:23,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:09:23,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:09:23,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:09:23,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:09:23,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:09:23,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:09:23,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:09:23,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:09:23,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:09:23,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:09:23,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:09:23,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:09:23,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:09:23,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:09:23,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:09:23,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:09:23,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:09:23,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:09:23,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:09:23,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:09:23,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:09:23,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:09:23,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:09:23,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:09:23,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:09:23,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:09:23,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:09:23,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:09:23,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:09:23,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:09:23,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:09:23,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:09:23,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:09:23,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:09:23,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:09:23,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:09:23,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:09:23,275 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:09:23,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:09:23,276 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:09:23,276 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:09:23,276 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:09:23,277 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:09:23,277 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:09:23,277 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:09:23,277 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:09:23,278 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:09:23,278 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:09:23,278 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:09:23,278 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:09:23,279 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:09:23,279 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:09:23,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:09:23,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:09:23,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:09:23,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:09:23,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:09:23,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:09:23,281 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:09:23,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:09:23,281 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:09:23,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:09:23,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:09:23,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:09:23,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:09:23,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:09:23,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:09:23,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:09:23,283 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:09:23,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:09:23,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:09:23,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:09:23,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:09:23,284 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_ac524418-215b-465d-be39-9dce00e82adc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99ee682e10e695b9eb1615836043680c46e24c4df6227faaade6163d2feea99e [2021-11-07 02:09:23,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:09:23,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:09:23,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:09:23,568 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:09:23,569 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:09:23,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i [2021-11-07 02:09:23,667 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/data/7837aacac/beda9ccf510a42329fb53185742d6f55/FLAG10e6a7006 [2021-11-07 02:09:24,492 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:09:24,494 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i [2021-11-07 02:09:24,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/data/7837aacac/beda9ccf510a42329fb53185742d6f55/FLAG10e6a7006 [2021-11-07 02:09:25,001 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/data/7837aacac/beda9ccf510a42329fb53185742d6f55 [2021-11-07 02:09:25,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:09:25,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:09:25,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:25,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:09:25,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:09:25,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:25" (1/1) ... [2021-11-07 02:09:25,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@257a5784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:25, skipping insertion in model container [2021-11-07 02:09:25,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:25" (1/1) ... [2021-11-07 02:09:25,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:09:25,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:09:25,470 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_ac524418-215b-465d-be39-9dce00e82adc/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4492,4505] [2021-11-07 02:09:25,482 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_ac524418-215b-465d-be39-9dce00e82adc/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4552,4565] [2021-11-07 02:09:25,515 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:09:25,524 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:09:26,486 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:26,487 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:26,488 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:26,489 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:26,490 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:26,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:26,507 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:26,509 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:26,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:27,000 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:09:27,002 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:09:27,004 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:09:27,005 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:09:27,008 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:09:27,009 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:09:27,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:09:27,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:09:27,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:09:27,012 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:09:27,234 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:09:27,462 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:27,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:27,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:27,608 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 02:09:27,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@41317384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:27, skipping insertion in model container [2021-11-07 02:09:27,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:27,610 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:09:27,612 INFO L168 Benchmark]: Toolchain (without parser) took 2604.26 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 53.2 MB in the beginning and 69.1 MB in the end (delta: -15.9 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:27,613 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 96.5 MB. Free memory was 70.4 MB in the beginning and 70.4 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:09:27,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2598.25 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 53.0 MB in the beginning and 69.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:27,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 96.5 MB. Free memory was 70.4 MB in the beginning and 70.4 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2598.25 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 53.0 MB in the beginning and 69.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 22.0 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_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/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_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/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_ac524418-215b-465d-be39-9dce00e82adc/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 99ee682e10e695b9eb1615836043680c46e24c4df6227faaade6163d2feea99e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:09:29,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:09:29,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:09:29,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:09:29,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:09:29,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:09:29,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:09:29,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:09:29,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:09:29,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:09:29,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:09:29,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:09:29,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:09:29,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:09:29,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:09:29,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:09:29,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:09:29,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:09:29,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:09:29,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:09:29,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:09:29,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:09:29,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:09:29,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:09:29,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:09:29,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:09:29,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:09:29,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:09:29,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:09:29,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:09:29,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:09:29,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:09:29,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:09:29,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:09:29,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:09:29,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:09:29,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:09:29,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:09:30,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:09:30,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:09:30,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:09:30,011 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:09:30,037 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:09:30,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:09:30,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:09:30,039 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:09:30,039 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:09:30,039 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:09:30,039 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:09:30,040 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:09:30,040 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:09:30,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:09:30,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:09:30,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:09:30,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:09:30,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:09:30,042 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:09:30,042 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:09:30,042 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:09:30,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:09:30,043 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:09:30,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:09:30,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:09:30,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:09:30,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:09:30,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:09:30,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:09:30,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:09:30,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:09:30,045 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:09:30,045 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:09:30,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:09:30,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:09:30,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:09:30,046 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_ac524418-215b-465d-be39-9dce00e82adc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99ee682e10e695b9eb1615836043680c46e24c4df6227faaade6163d2feea99e [2021-11-07 02:09:30,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:09:30,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:09:30,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:09:30,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:09:30,445 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:09:30,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i [2021-11-07 02:09:30,530 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/data/e126499c7/c76f8825b1754836883aa0b8d821ed22/FLAG634a5d85e [2021-11-07 02:09:31,527 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:09:31,527 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i [2021-11-07 02:09:31,570 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/data/e126499c7/c76f8825b1754836883aa0b8d821ed22/FLAG634a5d85e [2021-11-07 02:09:31,970 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/data/e126499c7/c76f8825b1754836883aa0b8d821ed22 [2021-11-07 02:09:31,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:09:31,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:09:31,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:31,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:09:31,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:09:31,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:31" (1/1) ... [2021-11-07 02:09:31,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bcfbff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:31, skipping insertion in model container [2021-11-07 02:09:31,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:31" (1/1) ... [2021-11-07 02:09:32,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:09:32,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:09:32,514 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_ac524418-215b-465d-be39-9dce00e82adc/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4492,4505] [2021-11-07 02:09:32,522 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_ac524418-215b-465d-be39-9dce00e82adc/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4552,4565] [2021-11-07 02:09:32,558 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:09:32,572 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:09:34,257 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:34,258 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:34,259 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:34,260 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:34,261 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:34,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:34,281 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:34,283 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:34,285 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:34,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:09:34,898 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:09:34,900 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:09:34,901 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:09:34,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:09:34,904 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:09:34,905 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:09:34,906 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:09:34,906 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:09:34,907 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:09:35,098 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:09:35,244 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,259 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:35,432 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:09:35,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:09:35,526 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_ac524418-215b-465d-be39-9dce00e82adc/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4492,4505] [2021-11-07 02:09:35,527 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_ac524418-215b-465d-be39-9dce00e82adc/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4552,4565] [2021-11-07 02:09:35,528 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:09:35,529 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:09:35,563 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,563 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,564 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,565 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,612 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:09:35,613 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:09:35,614 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:09:35,615 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:09:35,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:09:35,617 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:09:35,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:09:35,619 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:09:35,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:09:35,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:09:35,643 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:09:35,745 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,745 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:35,812 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:09:35,842 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4492,4505] [2021-11-07 02:09:35,843 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_ac524418-215b-465d-be39-9dce00e82adc/sv-benchmarks/c/aws-c-common/aws_array_eq_c_str_harness.i[4552,4565] [2021-11-07 02:09:35,845 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:09:35,854 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:09:35,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,911 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,911 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,919 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:35,959 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:09:35,960 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:09:35,960 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:09:35,961 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:09:35,962 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:09:35,963 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:09:35,964 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:09:35,964 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:09:35,965 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:09:35,965 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:09:35,988 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 02:09:36,053 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:36,053 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:09:36,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:36,459 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:09:36,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:36 WrapperNode [2021-11-07 02:09:36,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:36,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:09:36,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:09:36,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:09:36,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:36" (1/1) ... [2021-11-07 02:09:36,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:36" (1/1) ... [2021-11-07 02:09:36,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:09:36,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:09:36,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:09:36,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:09:36,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:36" (1/1) ... [2021-11-07 02:09:36,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:36" (1/1) ... [2021-11-07 02:09:36,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:36" (1/1) ... [2021-11-07 02:09:36,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:36" (1/1) ... [2021-11-07 02:09:36,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:36" (1/1) ... [2021-11-07 02:09:36,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:36" (1/1) ... [2021-11-07 02:09:37,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:36" (1/1) ... [2021-11-07 02:09:37,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:09:37,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:09:37,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:09:37,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:09:37,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:36" (1/1) ... [2021-11-07 02:09:37,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:09:37,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:09:37,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:09:37,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:09:37,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:09:37,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:09:37,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:09:37,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:09:37,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:09:37,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:09:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:09:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:09:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:09:37,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:09:37,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:09:37,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:09:52,134 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:09:52,135 INFO L299 CfgBuilder]: Removed 73 assume(true) statements. [2021-11-07 02:09:52,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:09:52 BoogieIcfgContainer [2021-11-07 02:09:52,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:09:52,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:09:52,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:09:52,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:09:52,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:09:31" (1/3) ... [2021-11-07 02:09:52,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6675d54c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:09:52, skipping insertion in model container [2021-11-07 02:09:52,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:36" (2/3) ... [2021-11-07 02:09:52,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6675d54c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:09:52, skipping insertion in model container [2021-11-07 02:09:52,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:09:52" (3/3) ... [2021-11-07 02:09:52,153 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_eq_c_str_harness.i [2021-11-07 02:09:52,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:09:52,167 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 02:09:52,236 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:09:52,243 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 02:09:52,243 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 02:09:52,266 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 02:09:52,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 02:09:52,275 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:52,276 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 02:09:52,276 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 02:09:52,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:52,283 INFO L85 PathProgramCache]: Analyzing trace with hash 857180983, now seen corresponding path program 1 times [2021-11-07 02:09:52,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:52,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506059799] [2021-11-07 02:09:52,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:52,309 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:52,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:52,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:52,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:09:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:56,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:09:56,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:56,695 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 02:09:56,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:56,847 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 02:09:56,848 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:09:56,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506059799] [2021-11-07 02:09:56,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506059799] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:56,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:56,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:09:56,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953240706] [2021-11-07 02:09:56,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:09:56,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:09:56,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:09:56,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:09:56,902 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 02:09:56,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:56,954 INFO L93 Difference]: Finished difference Result 159 states and 222 transitions. [2021-11-07 02:09:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:09:56,956 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 02:09:56,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:56,967 INFO L225 Difference]: With dead ends: 159 [2021-11-07 02:09:56,968 INFO L226 Difference]: Without dead ends: 75 [2021-11-07 02:09:56,971 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 02:09:56,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-07 02:09:57,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-11-07 02:09:57,012 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 02:09:57,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2021-11-07 02:09:57,016 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 30 [2021-11-07 02:09:57,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:57,016 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2021-11-07 02:09:57,017 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 02:09:57,017 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2021-11-07 02:09:57,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 02:09:57,019 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:57,019 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 02:09:57,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:09:57,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:09:57,220 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 02:09:57,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:57,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1256337345, now seen corresponding path program 1 times [2021-11-07 02:09:57,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:09:57,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030732508] [2021-11-07 02:09:57,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:57,226 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:09:57,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:09:57,227 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:09:57,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:10:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:01,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:10:01,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:01,955 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 02:10:01,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:02,115 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 02:10:02,116 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:02,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030732508] [2021-11-07 02:10:02,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030732508] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:02,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:02,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:10:02,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423167637] [2021-11-07 02:10:02,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:10:02,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:02,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:10:02,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:10:02,120 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 02:10:02,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:02,267 INFO L93 Difference]: Finished difference Result 175 states and 205 transitions. [2021-11-07 02:10:02,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:10:02,268 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 02:10:02,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:02,270 INFO L225 Difference]: With dead ends: 175 [2021-11-07 02:10:02,270 INFO L226 Difference]: Without dead ends: 128 [2021-11-07 02:10:02,271 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 02:10:02,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-07 02:10:02,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 81. [2021-11-07 02:10:02,280 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 02:10:02,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2021-11-07 02:10:02,281 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 30 [2021-11-07 02:10:02,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:02,282 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2021-11-07 02:10:02,282 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 02:10:02,282 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2021-11-07 02:10:02,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 02:10:02,288 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:02,288 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 02:10:02,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-07 02:10:02,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:02,503 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 02:10:02,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:02,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1044485245, now seen corresponding path program 1 times [2021-11-07 02:10:02,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:02,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153751177] [2021-11-07 02:10:02,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:02,507 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:02,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:02,508 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:02,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:10:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:06,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:10:06,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:07,251 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 02:10:07,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:07,563 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 02:10:07,563 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:07,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153751177] [2021-11-07 02:10:07,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153751177] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:07,564 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:07,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-07 02:10:07,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600475262] [2021-11-07 02:10:07,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:10:07,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:07,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:10:07,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:10:07,566 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 02:10:07,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:07,888 INFO L93 Difference]: Finished difference Result 128 states and 149 transitions. [2021-11-07 02:10:07,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:10:07,889 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 02:10:07,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:07,890 INFO L225 Difference]: With dead ends: 128 [2021-11-07 02:10:07,890 INFO L226 Difference]: Without dead ends: 75 [2021-11-07 02:10:07,891 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 02:10:07,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-07 02:10:07,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-11-07 02:10:07,898 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 02:10:07,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2021-11-07 02:10:07,899 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 30 [2021-11-07 02:10:07,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:07,900 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2021-11-07 02:10:07,900 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 02:10:07,900 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2021-11-07 02:10:07,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 02:10:07,902 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:07,902 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 02:10:07,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 02:10:08,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:08,111 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 02:10:08,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:08,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1966230668, now seen corresponding path program 1 times [2021-11-07 02:10:08,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:08,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457468502] [2021-11-07 02:10:08,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:08,116 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:08,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:08,116 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:08,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:10:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:12,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 1766 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-07 02:10:12,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:14,658 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 02:10:14,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:17,127 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 02:10:17,128 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:17,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457468502] [2021-11-07 02:10:17,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457468502] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:17,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:17,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 15] imperfect sequences [] total 30 [2021-11-07 02:10:17,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106191531] [2021-11-07 02:10:17,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-07 02:10:17,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:17,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-07 02:10:17,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=758, Unknown=0, NotChecked=0, Total=870 [2021-11-07 02:10:17,131 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand has 30 states, 30 states have (on average 2.533333333333333) internal successors, (76), 30 states have internal predecessors, (76), 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 02:10:25,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:25,972 INFO L93 Difference]: Finished difference Result 232 states and 264 transitions. [2021-11-07 02:10:25,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-07 02:10:25,973 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.533333333333333) internal successors, (76), 30 states have internal predecessors, (76), 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 02:10:25,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:25,976 INFO L225 Difference]: With dead ends: 232 [2021-11-07 02:10:25,976 INFO L226 Difference]: Without dead ends: 185 [2021-11-07 02:10:25,978 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=717, Invalid=2705, Unknown=0, NotChecked=0, Total=3422 [2021-11-07 02:10:25,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-11-07 02:10:25,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 125. [2021-11-07 02:10:25,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 120 states have (on average 1.2083333333333333) internal successors, (145), 124 states have internal predecessors, (145), 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 02:10:25,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 145 transitions. [2021-11-07 02:10:25,992 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 145 transitions. Word has length 39 [2021-11-07 02:10:25,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:25,992 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 145 transitions. [2021-11-07 02:10:25,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.533333333333333) internal successors, (76), 30 states have internal predecessors, (76), 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 02:10:25,993 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 145 transitions. [2021-11-07 02:10:25,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 02:10:25,999 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:25,999 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 02:10:26,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 02:10:26,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:26,223 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 02:10:26,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:26,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1487483217, now seen corresponding path program 1 times [2021-11-07 02:10:26,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:26,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668954601] [2021-11-07 02:10:26,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:26,228 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:26,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:26,229 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:26,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:10:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:10:30,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-07 02:10:30,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:10:31,781 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 02:10:31,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:10:33,326 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 02:10:33,327 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:10:33,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668954601] [2021-11-07 02:10:33,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668954601] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:10:33,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:10:33,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 15] imperfect sequences [] total 29 [2021-11-07 02:10:33,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226226255] [2021-11-07 02:10:33,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 02:10:33,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:10:33,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 02:10:33,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2021-11-07 02:10:33,330 INFO L87 Difference]: Start difference. First operand 125 states and 145 transitions. Second operand has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 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 02:10:41,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:10:41,388 INFO L93 Difference]: Finished difference Result 266 states and 303 transitions. [2021-11-07 02:10:41,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-07 02:10:41,388 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 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 02:10:41,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:10:41,390 INFO L225 Difference]: With dead ends: 266 [2021-11-07 02:10:41,390 INFO L226 Difference]: Without dead ends: 220 [2021-11-07 02:10:41,393 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=735, Invalid=2571, Unknown=0, NotChecked=0, Total=3306 [2021-11-07 02:10:41,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-07 02:10:41,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 150. [2021-11-07 02:10:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.206896551724138) internal successors, (175), 149 states have internal predecessors, (175), 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 02:10:41,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 175 transitions. [2021-11-07 02:10:41,420 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 175 transitions. Word has length 42 [2021-11-07 02:10:41,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:10:41,421 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 175 transitions. [2021-11-07 02:10:41,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.793103448275862) internal successors, (81), 29 states have internal predecessors, (81), 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 02:10:41,421 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 175 transitions. [2021-11-07 02:10:41,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 02:10:41,423 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:41,423 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 02:10:41,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:41,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:41,644 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 02:10:41,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:41,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2135782765, now seen corresponding path program 1 times [2021-11-07 02:10:41,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:41,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209425301] [2021-11-07 02:10:41,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:41,648 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:41,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:41,649 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:41,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac524418-215b-465d-be39-9dce00e82adc/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process