./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --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 e8acf6765f11fcd1914a16b600f73d0dd655e8b1eed69990958acc7eadb94c2e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:03:21,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:03:21,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 03:03:21,261 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:03:21,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:03:21,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:03:21,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:03:21,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:03:21,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:03:21,295 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:03:21,295 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:03:21,295 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:03:21,295 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:03:21,296 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:03:21,296 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:03:21,296 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:03:21,296 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:03:21,296 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:03:21,296 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:03:21,297 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:03:21,297 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:03:21,297 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:03:21,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:03:21,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:03:21,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:03:21,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:03:21,298 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:03:21,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:03:21,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:03:21,299 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:03:21,299 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:03:21,299 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:03:21,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:03:21,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:03:21,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:03:21,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:03:21,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:03:21,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:03:21,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:03:21,300 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:03:21,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:03:21,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:03:21,301 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:03:21,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:03:21,301 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> e8acf6765f11fcd1914a16b600f73d0dd655e8b1eed69990958acc7eadb94c2e [2024-11-14 03:03:21,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:03:21,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:03:21,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:03:21,690 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:03:21,690 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:03:21,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i Unable to find full path for "g++" [2024-11-14 03:03:23,745 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:03:24,470 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:03:24,474 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i [2024-11-14 03:03:24,523 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/data/e5e3d7877/c5cbeec92a224fd399cd5de0ba34112b/FLAGe7ced68fe [2024-11-14 03:03:24,540 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/data/e5e3d7877/c5cbeec92a224fd399cd5de0ba34112b [2024-11-14 03:03:24,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:03:24,544 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:03:24,546 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:03:24,547 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:03:24,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:03:24,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:03:24" (1/1) ... [2024-11-14 03:03:24,554 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c89e9a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:24, skipping insertion in model container [2024-11-14 03:03:24,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:03:24" (1/1) ... [2024-11-14 03:03:24,666 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:03:24,982 WARN L250 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_e27f1364-b7fe-4934-8e9b-f6a273c3382b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2024-11-14 03:03:24,992 WARN L250 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_e27f1364-b7fe-4934-8e9b-f6a273c3382b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2024-11-14 03:03:26,100 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:26,101 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:26,101 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:26,102 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:26,103 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:26,120 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:26,121 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:26,124 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:26,125 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,170 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,170 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:03:27,333 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:03:27,354 WARN L250 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_e27f1364-b7fe-4934-8e9b-f6a273c3382b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4495,4508] [2024-11-14 03:03:27,355 WARN L250 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_e27f1364-b7fe-4934-8e9b-f6a273c3382b/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness.i[4555,4568] [2024-11-14 03:03:27,467 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,468 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,468 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,469 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,473 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,486 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,487 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,491 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,492 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2024-11-14 03:03:27,695 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,697 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-14 03:03:27,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2024-11-14 03:03:27,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:03:28,061 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:03:28,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:28 WrapperNode [2024-11-14 03:03:28,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:03:28,063 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:03:28,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:03:28,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:03:28,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:28" (1/1) ... [2024-11-14 03:03:28,192 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:28" (1/1) ... [2024-11-14 03:03:28,299 INFO L138 Inliner]: procedures = 680, calls = 2618, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 871 [2024-11-14 03:03:28,299 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:03:28,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:03:28,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:03:28,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:03:28,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:28" (1/1) ... [2024-11-14 03:03:28,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:28" (1/1) ... [2024-11-14 03:03:28,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:28" (1/1) ... [2024-11-14 03:03:28,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:28" (1/1) ... [2024-11-14 03:03:28,403 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:28" (1/1) ... [2024-11-14 03:03:28,412 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:28" (1/1) ... [2024-11-14 03:03:28,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:28" (1/1) ... [2024-11-14 03:03:28,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:28" (1/1) ... [2024-11-14 03:03:28,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:03:28,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:03:28,463 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:03:28,463 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:03:28,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:28" (1/1) ... [2024-11-14 03:03:28,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:03:28,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:03:28,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:03:28,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:03:28,631 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-14 03:03:28,631 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-14 03:03:28,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:03:28,632 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-14 03:03:28,632 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-14 03:03:28,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 03:03:28,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:03:28,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:03:28,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:03:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:03:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:03:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:03:28,633 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-14 03:03:28,637 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-14 03:03:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:03:28,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:03:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-14 03:03:28,637 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-14 03:03:28,637 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-14 03:03:28,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-14 03:03:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 03:03:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:03:28,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:03:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-14 03:03:28,638 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-14 03:03:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:03:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:03:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2024-11-14 03:03:28,638 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2024-11-14 03:03:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 03:03:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-14 03:03:28,638 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-14 03:03:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:03:28,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:03:29,090 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:03:29,093 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:03:36,959 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2024-11-14 03:03:36,963 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:03:38,478 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:03:38,479 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:03:38,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:03:38 BoogieIcfgContainer [2024-11-14 03:03:38,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:03:38,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:03:38,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:03:38,492 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:03:38,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:03:24" (1/3) ... [2024-11-14 03:03:38,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ad7069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:03:38, skipping insertion in model container [2024-11-14 03:03:38,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:03:28" (2/3) ... [2024-11-14 03:03:38,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ad7069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:03:38, skipping insertion in model container [2024-11-14 03:03:38,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:03:38" (3/3) ... [2024-11-14 03:03:38,496 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness.i [2024-11-14 03:03:38,523 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:03:38,526 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_write_u8_harness.i that has 11 procedures, 98 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:03:38,613 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:03:38,632 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@21528080, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:03:38,633 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:03:38,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-14 03:03:38,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-14 03:03:38,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:03:38,653 INFO L215 NwaCegarLoop]: trace histogram [6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:03:38,654 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:03:38,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:03:38,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1032521397, now seen corresponding path program 1 times [2024-11-14 03:03:38,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:03:38,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966601591] [2024-11-14 03:03:38,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:03:38,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:05:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:07:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 03:07:01,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:07:01,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966601591] [2024-11-14 03:07:01,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966601591] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:07:01,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543926588] [2024-11-14 03:07:01,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:07:01,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:07:01,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:07:01,261 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:07:01,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27f1364-b7fe-4934-8e9b-f6a273c3382b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:08:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:08:43,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 7628 conjuncts, 138 conjuncts are in the unsatisfiable core [2024-11-14 03:08:43,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:08:43,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-14 03:08:46,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:08:46,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-14 03:08:46,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:08:46,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-14 03:08:46,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-14 03:08:47,629 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-14 03:08:47,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-14 03:08:48,350 INFO L349 Elim1Store]: treesize reduction 52, result has 30.7 percent of original size [2024-11-14 03:08:48,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 29 [2024-11-14 03:08:48,502 INFO L349 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2024-11-14 03:08:48,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 30 [2024-11-14 03:08:56,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:08:57,280 INFO L349 Elim1Store]: treesize reduction 92, result has 22.7 percent of original size [2024-11-14 03:08:57,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 34 treesize of output 39 [2024-11-14 03:08:59,345 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2024-11-14 03:08:59,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 28 [2024-11-14 03:09:05,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-14 03:09:10,846 WARN L286 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 454 DAG size of output: 316 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-14 03:09:10,847 INFO L349 Elim1Store]: treesize reduction 424, result has 57.6 percent of original size [2024-11-14 03:09:10,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 2 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 64 case distinctions, treesize of input 498 treesize of output 984 [2024-11-14 03:09:15,290 INFO L349 Elim1Store]: treesize reduction 196, result has 65.7 percent of original size [2024-11-14 03:09:15,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 436 treesize of output 782 [2024-11-14 03:09:15,871 INFO L224 Elim1Store]: Index analysis took 440 ms [2024-11-14 03:09:20,102 INFO L349 Elim1Store]: treesize reduction 196, result has 65.7 percent of original size [2024-11-14 03:09:20,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 436 treesize of output 780 [2024-11-14 03:09:20,751 INFO L224 Elim1Store]: Index analysis took 473 ms [2024-11-14 03:09:25,776 WARN L286 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 243 DAG size of output: 241 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-14 03:09:25,776 INFO L349 Elim1Store]: treesize reduction 4, result has 99.1 percent of original size [2024-11-14 03:09:25,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 390 treesize of output 802