./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje --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 b9b18ebf4b8789ea2f47784074870c5f6db1e5ba9b6bdc5a046638032691b06b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:43:23,740 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:43:23,863 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 04:43:23,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:43:23,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:43:23,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:43:23,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:43:23,918 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:43:23,919 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:43:23,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:43:23,924 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:43:23,925 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:43:23,925 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:43:23,925 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:43:23,926 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:43:23,926 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:43:23,927 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:43:23,929 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:43:23,929 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:43:23,930 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:43:23,930 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:43:23,931 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:43:23,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:43:23,932 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:43:23,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:43:23,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:43:23,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:43:23,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:43:23,935 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:43:23,936 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:43:23,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:43:23,936 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:43:23,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:43:23,937 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:43:23,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:43:23,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:43:23,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:43:23,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:43:23,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:43:23,938 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:43:23,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:43:23,941 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:43:23,941 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:43:23,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:43:23,942 INFO L153 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_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9b18ebf4b8789ea2f47784074870c5f6db1e5ba9b6bdc5a046638032691b06b [2024-11-09 04:43:24,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:43:24,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:43:24,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:43:24,334 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:43:24,338 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:43:24,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i Unable to find full path for "g++" [2024-11-09 04:43:26,287 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:43:26,918 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:43:26,921 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i [2024-11-09 04:43:26,966 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/data/e141b7b7a/4ce223aaeacb47f38ea1001d2e2d58f7/FLAG69c99ff2d [2024-11-09 04:43:27,374 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/data/e141b7b7a/4ce223aaeacb47f38ea1001d2e2d58f7 [2024-11-09 04:43:27,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:43:27,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:43:27,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:43:27,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:43:27,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:43:27,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:43:27" (1/1) ... [2024-11-09 04:43:27,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599fc9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:27, skipping insertion in model container [2024-11-09 04:43:27,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:43:27" (1/1) ... [2024-11-09 04:43:27,505 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:43:27,797 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_658de558-a34e-4456-97ab-69d70849a09a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4497,4510] [2024-11-09 04:43:27,806 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_658de558-a34e-4456-97ab-69d70849a09a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4557,4570] [2024-11-09 04:43:29,033 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:29,036 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:29,036 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:29,037 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:29,041 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:29,074 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:29,077 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:29,082 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:29,087 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:29,964 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:29,965 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:30,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:43:30,176 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:43:30,196 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_658de558-a34e-4456-97ab-69d70849a09a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4497,4510] [2024-11-09 04:43:30,197 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_658de558-a34e-4456-97ab-69d70849a09a/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_u8_harness_negated.i[4557,4570] [2024-11-09 04:43:30,264 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:30,265 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:30,266 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:30,270 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:30,271 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:30,282 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:30,287 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:30,289 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:30,289 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:30,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2024-11-09 04:43:30,469 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:30,470 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:43:30,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2024-11-09 04:43:30,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:43:30,799 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:43:30,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:30 WrapperNode [2024-11-09 04:43:30,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:43:30,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:43:30,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:43:30,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:43:30,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:30" (1/1) ... [2024-11-09 04:43:30,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:30" (1/1) ... [2024-11-09 04:43:31,027 INFO L138 Inliner]: procedures = 679, calls = 2625, calls flagged for inlining = 61, calls inlined = 10, statements flattened = 1000 [2024-11-09 04:43:31,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:43:31,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:43:31,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:43:31,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:43:31,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:30" (1/1) ... [2024-11-09 04:43:31,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:30" (1/1) ... [2024-11-09 04:43:31,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:30" (1/1) ... [2024-11-09 04:43:31,054 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:30" (1/1) ... [2024-11-09 04:43:31,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:30" (1/1) ... [2024-11-09 04:43:31,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:30" (1/1) ... [2024-11-09 04:43:31,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:30" (1/1) ... [2024-11-09 04:43:31,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:30" (1/1) ... [2024-11-09 04:43:31,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:43:31,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:43:31,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:43:31,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:43:31,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:30" (1/1) ... [2024-11-09 04:43:31,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:43:31,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:43:31,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:43:31,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:43:31,236 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-11-09 04:43:31,237 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-11-09 04:43:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-09 04:43:31,238 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-09 04:43:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:43:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 04:43:31,238 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 04:43:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-09 04:43:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 04:43:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 04:43:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:43:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 04:43:31,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 04:43:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 04:43:31,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 04:43:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:43:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:43:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 04:43:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:43:31,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:43:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 04:43:31,242 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 04:43:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 04:43:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 04:43:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:43:31,242 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:43:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:43:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 04:43:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 04:43:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 04:43:31,243 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 04:43:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:43:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2024-11-09 04:43:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:43:31,593 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:43:31,595 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:43:39,303 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-09 04:43:39,304 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:43:40,301 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:43:40,302 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:43:40,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:43:40 BoogieIcfgContainer [2024-11-09 04:43:40,303 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:43:40,306 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:43:40,306 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:43:40,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:43:40,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:43:27" (1/3) ... [2024-11-09 04:43:40,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5708445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:43:40, skipping insertion in model container [2024-11-09 04:43:40,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:43:30" (2/3) ... [2024-11-09 04:43:40,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5708445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:43:40, skipping insertion in model container [2024-11-09 04:43:40,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:43:40" (3/3) ... [2024-11-09 04:43:40,315 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_u8_harness_negated.i [2024-11-09 04:43:40,341 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:43:40,342 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:43:40,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:43:40,464 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;@7b3523b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:43:40,466 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:43:40,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 50 states have (on average 1.2) internal successors, (60), 51 states have internal predecessors, (60), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-09 04:43:40,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 04:43:40,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:43:40,491 INFO L215 NwaCegarLoop]: trace histogram [9, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:43:40,493 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:43:40,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:43:40,503 INFO L85 PathProgramCache]: Analyzing trace with hash -888592984, now seen corresponding path program 1 times [2024-11-09 04:43:40,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:43:40,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713193817] [2024-11-09 04:43:40,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:43:40,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:46:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-09 04:47:18,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:47:18,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713193817] [2024-11-09 04:47:18,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713193817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:47:18,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906785109] [2024-11-09 04:47:18,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:47:18,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:47:18,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:47:18,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:47:18,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:49:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:49:04,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 7741 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-11-09 04:49:04,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:49:07,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 04:49:07,350 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-09 04:49:07,350 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 2 case distinctions, treesize of input 26 treesize of output 21 [2024-11-09 04:49:07,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 04:49:12,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 04:49:13,458 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 04:49:13,458 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:49:13,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906785109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:49:13,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:49:13,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 27 [2024-11-09 04:49:13,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200395217] [2024-11-09 04:49:13,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:49:13,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 04:49:13,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:49:13,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 04:49:13,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2024-11-09 04:49:13,497 INFO L87 Difference]: Start difference. First operand has 98 states, 50 states have (on average 1.2) internal successors, (60), 51 states have internal predecessors, (60), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 15 states, 8 states have (on average 3.125) internal successors, (25), 10 states have internal predecessors, (25), 7 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-09 04:49:15,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:18,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:49:20,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:49:22,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:49:25,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:49:27,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:49:29,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:49:32,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:49:34,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:49:36,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:49:39,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 04:49:43,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:49:43,652 INFO L93 Difference]: Finished difference Result 187 states and 270 transitions. [2024-11-09 04:49:43,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 04:49:43,655 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 8 states have (on average 3.125) internal successors, (25), 10 states have internal predecessors, (25), 7 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) Word has length 68 [2024-11-09 04:49:43,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:49:43,663 INFO L225 Difference]: With dead ends: 187 [2024-11-09 04:49:43,664 INFO L226 Difference]: Without dead ends: 97 [2024-11-09 04:49:43,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=148, Invalid=974, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 04:49:43,671 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 14 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 9 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:49:43,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 410 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 203 Invalid, 11 Unknown, 0 Unchecked, 27.7s Time] [2024-11-09 04:49:43,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-09 04:49:43,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-09 04:49:43,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 50 states have internal predecessors, (56), 38 states have call successors, (38), 9 states have call predecessors, (38), 9 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-09 04:49:43,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 131 transitions. [2024-11-09 04:49:43,723 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 131 transitions. Word has length 68 [2024-11-09 04:49:43,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:49:43,724 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 131 transitions. [2024-11-09 04:49:43,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 8 states have (on average 3.125) internal successors, (25), 10 states have internal predecessors, (25), 7 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-09 04:49:43,724 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 131 transitions. [2024-11-09 04:49:43,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 04:49:43,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:49:43,727 INFO L215 NwaCegarLoop]: trace histogram [10, 5, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:49:43,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:49:43,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 04:49:43,928 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:49:43,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:49:43,929 INFO L85 PathProgramCache]: Analyzing trace with hash 914466311, now seen corresponding path program 1 times [2024-11-09 04:49:43,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:49:43,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744546709] [2024-11-09 04:49:43,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:49:43,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:51:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:52:00,498 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-09 04:52:00,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:52:00,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744546709] [2024-11-09 04:52:00,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744546709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:52:00,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057028062] [2024-11-09 04:52:00,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:52:00,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:52:00,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:52:00,503 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:52:00,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_658de558-a34e-4456-97ab-69d70849a09a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:54:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:54:08,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 7774 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-11-09 04:54:08,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:54:11,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 04:54:11,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 04:54:11,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 04:54:22,223 INFO L349 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2024-11-09 04:54:22,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 72 [2024-11-09 04:54:22,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:54:22,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 61 [2024-11-09 04:54:22,359 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 04:54:22,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 53 [2024-11-09 04:54:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 76 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-09 04:54:22,990 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:54:24,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057028062] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:54:24,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [177046127] [2024-11-09 04:54:24,524 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2024-11-09 04:54:24,524 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:54:24,528 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:54:24,533 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:54:24,534 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:57:22,823 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_bool with input of size 9732 for LOIs [2024-11-09 04:57:32,878 INFO L197 IcfgInterpreter]: Interpreting procedure aws_byte_cursor_read with input of size 69 for LOIs [2024-11-09 04:57:45,674 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 56 for LOIs [2024-11-09 04:57:45,721 INFO L197 IcfgInterpreter]: Interpreting procedure aws_byte_cursor_is_valid with input of size 47 for LOIs [2024-11-09 04:57:45,852 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 9778 for LOIs