./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF --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 df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:58:10,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:58:10,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:58:10,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:58:10,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:58:10,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:58:10,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:58:10,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:58:10,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:58:10,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:58:10,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:58:10,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:58:10,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:58:10,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:58:10,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:58:10,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:58:10,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:58:10,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:58:10,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:58:10,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:58:10,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:58:10,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:58:10,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:58:10,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:58:10,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:58:10,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:58:10,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:58:10,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:58:10,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:58:10,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:58:10,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:58:10,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:58:10,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:58:10,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:58:10,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:58:10,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:58:10,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:58:10,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:58:10,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:58:10,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:58:10,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:58:10,432 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:58:10,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:58:10,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:58:10,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:58:10,510 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:58:10,510 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:58:10,511 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:58:10,511 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:58:10,511 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:58:10,519 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:58:10,520 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:58:10,521 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:58:10,522 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:58:10,522 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:58:10,522 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:58:10,523 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:58:10,523 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:58:10,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:58:10,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:58:10,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:58:10,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:58:10,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:58:10,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:58:10,526 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:58:10,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:58:10,526 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:58:10,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:58:10,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:58:10,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:58:10,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:58:10,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:58:10,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:58:10,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:58:10,532 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:58:10,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:58:10,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:58:10,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:58:10,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:58:10,534 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_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 [2021-11-12 22:58:10,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:58:10,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:58:10,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:58:10,919 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:58:10,920 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:58:10,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-12 22:58:11,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/data/1d5e548a5/178d33bc1c704bea90c378fe1be1bc9c/FLAGbcb590141 [2021-11-12 22:58:12,042 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:58:12,044 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-12 22:58:12,110 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/data/1d5e548a5/178d33bc1c704bea90c378fe1be1bc9c/FLAGbcb590141 [2021-11-12 22:58:12,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/data/1d5e548a5/178d33bc1c704bea90c378fe1be1bc9c [2021-11-12 22:58:12,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:58:12,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:58:12,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:58:12,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:58:12,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:58:12,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:58:12" (1/1) ... [2021-11-12 22:58:12,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22bfab51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:12, skipping insertion in model container [2021-11-12 22:58:12,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:58:12" (1/1) ... [2021-11-12 22:58:12,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:58:12,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:58:12,967 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_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-12 22:58:12,979 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_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-12 22:58:13,014 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:58:13,025 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:58:14,277 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:14,278 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:14,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:14,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:14,282 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:14,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:14,303 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:14,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:14,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:14,866 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:58:14,868 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:58:14,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:58:14,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:58:14,874 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:58:14,880 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:58:14,881 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:58:14,882 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:58:14,883 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:58:14,888 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:58:15,118 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:58:15,283 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:15,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:15,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:58:15,493 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) [2021-11-12 22:58:15,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@538d4d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:15, skipping insertion in model container [2021-11-12 22:58:15,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:58:15,495 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:58:15,498 INFO L158 Benchmark]: Toolchain (without parser) took 3080.94ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 77.6MB in the beginning and 72.9MB in the end (delta: 4.8MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2021-11-12 22:58:15,500 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:58:15,502 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3077.58ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 77.3MB in the beginning and 72.9MB in the end (delta: 4.5MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2021-11-12 22:58:15,505 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3077.58ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 77.3MB in the beginning and 72.9MB in the end (delta: 4.5MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. * 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_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF --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 df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:58:18,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:58:18,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:58:18,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:58:18,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:58:18,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:58:18,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:58:18,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:58:18,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:58:18,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:58:18,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:58:18,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:58:18,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:58:18,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:58:18,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:58:18,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:58:18,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:58:18,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:58:18,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:58:18,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:58:18,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:58:18,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:58:18,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:58:18,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:58:18,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:58:18,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:58:18,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:58:18,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:58:18,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:58:18,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:58:18,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:58:18,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:58:18,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:58:18,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:58:18,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:58:18,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:58:18,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:58:18,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:58:18,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:58:18,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:58:18,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:58:18,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:58:18,527 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:58:18,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:58:18,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:58:18,529 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:58:18,529 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:58:18,529 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:58:18,530 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:58:18,530 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:58:18,530 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:58:18,531 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:58:18,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:58:18,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:58:18,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:58:18,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:58:18,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:58:18,533 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:58:18,534 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:58:18,534 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:58:18,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:58:18,535 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:58:18,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:58:18,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:58:18,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:58:18,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:58:18,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:58:18,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:58:18,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:58:18,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:58:18,542 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:58:18,542 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:58:18,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:58:18,543 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:58:18,543 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:58:18,543 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_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7033dfc83b180e9cf25def7ed6e49b1b8e99adfb4ac0289552069b1c368159 [2021-11-12 22:58:19,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:58:19,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:58:19,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:58:19,107 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:58:19,108 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:58:19,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-12 22:58:19,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/data/86a1dc85f/c673cb7f973a4b62ab8392a4796b3749/FLAGdc8e2172a [2021-11-12 22:58:20,341 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:58:20,342 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i [2021-11-12 22:58:20,394 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/data/86a1dc85f/c673cb7f973a4b62ab8392a4796b3749/FLAGdc8e2172a [2021-11-12 22:58:20,638 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/data/86a1dc85f/c673cb7f973a4b62ab8392a4796b3749 [2021-11-12 22:58:20,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:58:20,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:58:20,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:58:20,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:58:20,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:58:20,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:58:20" (1/1) ... [2021-11-12 22:58:20,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5439f070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:20, skipping insertion in model container [2021-11-12 22:58:20,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:58:20" (1/1) ... [2021-11-12 22:58:20,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:58:20,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:58:21,221 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_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-12 22:58:21,230 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_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-12 22:58:21,269 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:58:21,278 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:58:22,450 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:22,451 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:22,452 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:22,453 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:22,455 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:22,476 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:22,477 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:22,480 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:22,481 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:23,057 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:58:23,059 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:58:23,061 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:58:23,063 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:58:23,065 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:58:23,067 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:58:23,068 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:58:23,069 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:58:23,069 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:58:23,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:58:23,316 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:58:23,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:23,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:23,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:58:23,726 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:58:23,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:58:23,813 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_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-12 22:58:23,813 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_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-12 22:58:23,815 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:58:23,818 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:58:23,884 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:23,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:23,885 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:23,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:23,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:23,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:23,911 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:23,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:23,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:23,988 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:58:23,989 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:58:23,990 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:58:23,991 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:58:23,992 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:58:23,993 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:58:23,993 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:58:23,994 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:58:23,995 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:58:23,999 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:58:24,046 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:58:24,159 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:24,159 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:24,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:58:24,285 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:58:24,317 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_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4504,4517] [2021-11-12 22:58:24,318 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_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/sv-benchmarks/c/aws-c-common/aws_byte_cursor_left_trim_pred_harness.i[4564,4577] [2021-11-12 22:58:24,320 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:58:24,321 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:58:24,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:24,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:24,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:24,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:24,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:24,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:24,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:24,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:24,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:24,436 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:58:24,437 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:58:24,438 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:58:24,439 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:58:24,440 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:58:24,441 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:58:24,441 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:58:24,442 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:58:24,442 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:58:24,443 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:58:24,474 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:58:24,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:24,572 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:58:24,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:58:25,057 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:58:25,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:25 WrapperNode [2021-11-12 22:58:25,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:58:25,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:58:25,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:58:25,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:58:25,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:25" (1/1) ... [2021-11-12 22:58:25,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:25" (1/1) ... [2021-11-12 22:58:25,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:58:25,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:58:25,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:58:25,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:58:25,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:25" (1/1) ... [2021-11-12 22:58:25,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:25" (1/1) ... [2021-11-12 22:58:25,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:25" (1/1) ... [2021-11-12 22:58:25,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:25" (1/1) ... [2021-11-12 22:58:25,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:25" (1/1) ... [2021-11-12 22:58:25,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:25" (1/1) ... [2021-11-12 22:58:25,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:25" (1/1) ... [2021-11-12 22:58:25,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:58:25,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:58:25,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:58:25,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:58:25,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:25" (1/1) ... [2021-11-12 22:58:25,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:58:25,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:58:25,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:58:25,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:58:25,685 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-12 22:58:25,685 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-12 22:58:25,685 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~uint8_t~0~TO~C_BOOL [2021-11-12 22:58:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~uint8_t~0~TO~C_BOOL [2021-11-12 22:58:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:58:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 22:58:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 22:58:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:58:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:58:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:58:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:58:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:58:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_left_trim_pred [2021-11-12 22:58:25,688 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_left_trim_pred [2021-11-12 22:58:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:58:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:58:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:58:25,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:58:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 22:58:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 22:58:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:58:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-12 22:58:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-12 22:58:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:58:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:58:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:58:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:58:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:58:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:58:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:58:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:58:41,724 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:58:41,725 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:58:41,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:58:41 BoogieIcfgContainer [2021-11-12 22:58:41,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:58:41,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:58:41,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:58:41,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:58:41,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:58:20" (1/3) ... [2021-11-12 22:58:41,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d8a598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:58:41, skipping insertion in model container [2021-11-12 22:58:41,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:58:25" (2/3) ... [2021-11-12 22:58:41,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d8a598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:58:41, skipping insertion in model container [2021-11-12 22:58:41,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:58:41" (3/3) ... [2021-11-12 22:58:41,738 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_left_trim_pred_harness.i [2021-11-12 22:58:41,745 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:58:41,745 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:58:41,850 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:58:41,858 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 [2021-11-12 22:58:41,858 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:58:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 64 states have internal predecessors, (78), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-12 22:58:41,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-12 22:58:41,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:41,893 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:58:41,894 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:58:41,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:41,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1215746245, now seen corresponding path program 1 times [2021-11-12 22:58:41,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:41,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [856157477] [2021-11-12 22:58:41,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:41,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:41,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:41,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:41,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:58:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:46,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 1807 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:58:46,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:47,135 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-12 22:58:47,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:47,344 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-12 22:58:47,345 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:47,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [856157477] [2021-11-12 22:58:47,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [856157477] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:58:47,349 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:58:47,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:58:47,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926810221] [2021-11-12 22:58:47,357 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:47,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:58:47,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:47,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:58:47,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:58:47,424 INFO L87 Difference]: Start difference. First operand has 95 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 64 states have internal predecessors, (78), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 22:58:47,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:47,486 INFO L93 Difference]: Finished difference Result 186 states and 253 transitions. [2021-11-12 22:58:47,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:58:47,489 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), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 61 [2021-11-12 22:58:47,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:47,500 INFO L225 Difference]: With dead ends: 186 [2021-11-12 22:58:47,501 INFO L226 Difference]: Without dead ends: 86 [2021-11-12 22:58:47,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:58:47,510 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:47,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 4.17ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:58:47,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-12 22:58:47,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-11-12 22:58:47,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 56 states have (on average 1.1785714285714286) internal successors, (66), 57 states have internal predecessors, (66), 22 states have call successors, (22), 8 states have call predecessors, (22), 7 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-12 22:58:47,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 108 transitions. [2021-11-12 22:58:47,569 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 108 transitions. Word has length 61 [2021-11-12 22:58:47,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:58:47,570 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 108 transitions. [2021-11-12 22:58:47,571 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), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 22:58:47,571 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 108 transitions. [2021-11-12 22:58:47,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:58:47,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:47,576 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:58:47,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:47,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:58:47,788 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:58:47,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:47,792 INFO L85 PathProgramCache]: Analyzing trace with hash 121767508, now seen corresponding path program 1 times [2021-11-12 22:58:47,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:47,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527785542] [2021-11-12 22:58:47,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:47,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:47,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:47,801 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:47,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:58:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:52,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:58:52,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:58:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-12 22:58:53,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:58:53,822 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-12 22:58:53,823 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:58:53,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527785542] [2021-11-12 22:58:53,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527785542] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:58:53,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:58:53,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-12 22:58:53,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131621789] [2021-11-12 22:58:53,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:58:53,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:58:53,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:58:53,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:58:53,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:58:53,828 INFO L87 Difference]: Start difference. First operand 86 states and 108 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-12 22:58:54,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:58:54,105 INFO L93 Difference]: Finished difference Result 155 states and 200 transitions. [2021-11-12 22:58:54,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:58:54,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2021-11-12 22:58:54,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:58:54,111 INFO L225 Difference]: With dead ends: 155 [2021-11-12 22:58:54,111 INFO L226 Difference]: Without dead ends: 89 [2021-11-12 22:58:54,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:58:54,114 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 27 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 200.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.16ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 241.95ms IncrementalHoareTripleChecker+Time [2021-11-12 22:58:54,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 341 Invalid, 48 Unknown, 0 Unchecked, 6.16ms Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 241.95ms Time] [2021-11-12 22:58:54,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-12 22:58:54,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-11-12 22:58:54,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 60 states have internal predecessors, (68), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2021-11-12 22:58:54,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2021-11-12 22:58:54,144 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 114 transitions. Word has length 63 [2021-11-12 22:58:54,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:58:54,145 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 114 transitions. [2021-11-12 22:58:54,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-12 22:58:54,146 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 114 transitions. [2021-11-12 22:58:54,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-12 22:58:54,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:58:54,151 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:58:54,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:58:54,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:58:54,376 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:58:54,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:58:54,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1486959695, now seen corresponding path program 1 times [2021-11-12 22:58:54,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:58:54,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255734017] [2021-11-12 22:58:54,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:58:54,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:58:54,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:58:54,389 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:58:54,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:58:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:58:59,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1814 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 22:58:59,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:00,032 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-12 22:59:00,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:00,537 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-12 22:59:00,537 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:59:00,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255734017] [2021-11-12 22:59:00,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255734017] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:59:00,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:59:00,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2021-11-12 22:59:00,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712967106] [2021-11-12 22:59:00,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:59:00,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:59:00,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:59:00,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:59:00,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:59:00,542 INFO L87 Difference]: Start difference. First operand 89 states and 114 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-12 22:59:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:59:00,868 INFO L93 Difference]: Finished difference Result 148 states and 189 transitions. [2021-11-12 22:59:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:59:00,869 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2021-11-12 22:59:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:59:00,872 INFO L225 Difference]: With dead ends: 148 [2021-11-12 22:59:00,872 INFO L226 Difference]: Without dead ends: 89 [2021-11-12 22:59:00,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:59:00,875 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 47 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 251.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.38ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 279.37ms IncrementalHoareTripleChecker+Time [2021-11-12 22:59:00,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 418 Invalid, 70 Unknown, 0 Unchecked, 5.38ms Time], IncrementalHoareTripleChecker [19 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 279.37ms Time] [2021-11-12 22:59:00,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-12 22:59:00,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-11-12 22:59:00,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 60 states have internal predecessors, (68), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 20 states have call predecessors, (22), 20 states have call successors, (22) [2021-11-12 22:59:00,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 112 transitions. [2021-11-12 22:59:00,894 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 112 transitions. Word has length 65 [2021-11-12 22:59:00,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:59:00,895 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 112 transitions. [2021-11-12 22:59:00,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-12 22:59:00,895 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 112 transitions. [2021-11-12 22:59:00,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-12 22:59:00,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:59:00,899 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:59:00,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 22:59:01,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:59:01,112 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:59:01,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:59:01,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1438008465, now seen corresponding path program 1 times [2021-11-12 22:59:01,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:59:01,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620548310] [2021-11-12 22:59:01,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:59:01,120 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:59:01,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:59:01,121 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:59:01,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc4aee4-71e6-469d-8ab1-24f03b12f4bd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:59:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:59:06,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 1822 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-12 22:59:06,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:59:12,269 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-12 22:59:12,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:59:30,502 WARN L227 SmtUtils]: Spent 12.34s on a formula simplification. DAG size of input: 523 DAG size of output: 269 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 22:59:30,509 INFO L354 Elim1Store]: treesize reduction 837, result has 46.8 percent of original size [2021-11-12 22:59:30,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 128 treesize of output 771