./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/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_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/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_f0de2346-4f8f-40a0-804d-ec0ada96734b/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 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:25:53,007 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:25:53,122 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 01:25:53,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:25:53,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:25:53,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:25:53,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:25:53,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:25:53,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:25:53,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:25:53,160 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:25:53,160 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:25:53,161 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:25:53,161 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:25:53,161 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:25:53,162 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:25:53,162 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:25:53,163 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:25:53,163 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:25:53,164 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:25:53,164 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:25:53,169 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:25:53,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:25:53,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:25:53,170 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:25:53,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:25:53,171 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:25:53,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:25:53,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:25:53,172 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:25:53,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:25:53,177 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:25:53,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:25:53,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:25:53,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:25:53,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:25:53,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:25:53,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:25:53,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:25:53,196 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:25:53,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:25:53,197 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:25:53,197 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:25:53,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:25:53,198 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_f0de2346-4f8f-40a0-804d-ec0ada96734b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2024-11-09 01:25:53,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:25:53,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:25:53,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:25:53,586 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:25:53,587 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:25:53,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i Unable to find full path for "g++" [2024-11-09 01:25:55,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:25:56,441 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:25:56,445 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2024-11-09 01:25:56,507 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje/data/117d42eae/d9b4f1f0c3484f2ba7bccdd94f59c95b/FLAGc3e3ca807 [2024-11-09 01:25:56,873 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje/data/117d42eae/d9b4f1f0c3484f2ba7bccdd94f59c95b [2024-11-09 01:25:56,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:25:56,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:25:56,884 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:25:56,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:25:56,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:25:56,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:25:56" (1/1) ... [2024-11-09 01:25:56,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f86c43b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:25:56, skipping insertion in model container [2024-11-09 01:25:56,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:25:56" (1/1) ... [2024-11-09 01:25:57,059 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:25:57,442 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_f0de2346-4f8f-40a0-804d-ec0ada96734b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2024-11-09 01:25:57,454 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_f0de2346-4f8f-40a0-804d-ec0ada96734b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2024-11-09 01:25:58,894 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:25:58,895 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:25:58,900 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:25:58,901 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:25:58,907 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:25:58,939 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:25:58,940 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:25:58,943 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:25:58,944 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:25:59,825 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:25:59,826 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:25:59,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:26:00,006 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:26:00,024 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_f0de2346-4f8f-40a0-804d-ec0ada96734b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2024-11-09 01:26:00,025 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_f0de2346-4f8f-40a0-804d-ec0ada96734b/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2024-11-09 01:26:00,073 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:26:00,074 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:26:00,074 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:26:00,075 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:26:00,075 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:26:00,082 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:26:00,083 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:26:00,084 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:26:00,085 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:26:00,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-11-09 01:26:00,274 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:26:00,275 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 01:26:00,295 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-11-09 01:26:00,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:26:00,612 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:26:00,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:00 WrapperNode [2024-11-09 01:26:00,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:26:00,615 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:26:00,615 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:26:00,615 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:26:00,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:00" (1/1) ... [2024-11-09 01:26:00,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:00" (1/1) ... [2024-11-09 01:26:00,862 INFO L138 Inliner]: procedures = 679, calls = 2625, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 990 [2024-11-09 01:26:00,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:26:00,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:26:00,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:26:00,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:26:00,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:00" (1/1) ... [2024-11-09 01:26:00,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:00" (1/1) ... [2024-11-09 01:26:00,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:00" (1/1) ... [2024-11-09 01:26:00,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:00" (1/1) ... [2024-11-09 01:26:00,951 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:00" (1/1) ... [2024-11-09 01:26:00,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:00" (1/1) ... [2024-11-09 01:26:00,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:00" (1/1) ... [2024-11-09 01:26:00,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:00" (1/1) ... [2024-11-09 01:26:00,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:26:00,975 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:26:00,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:26:00,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:26:00,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:00" (1/1) ... [2024-11-09 01:26:00,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:26:00,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:26:01,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:26:01,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:26:01,065 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-11-09 01:26:01,065 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-11-09 01:26:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-09 01:26:01,066 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-09 01:26:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:26:01,066 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 01:26:01,066 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 01:26:01,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-09 01:26:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 01:26:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 01:26:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 01:26:01,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 01:26:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 01:26:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 01:26:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 01:26:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 01:26:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:26:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 01:26:01,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:26:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:26:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 01:26:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 01:26:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 01:26:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 01:26:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 01:26:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 01:26:01,071 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:26:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:26:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 01:26:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 01:26:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 01:26:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 01:26:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 01:26:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 01:26:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2024-11-09 01:26:01,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:26:01,420 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:26:01,423 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:26:08,617 INFO L? ?]: Removed 136 outVars from TransFormulas that were not future-live. [2024-11-09 01:26:08,618 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:26:09,370 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:26:09,370 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 01:26:09,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:26:09 BoogieIcfgContainer [2024-11-09 01:26:09,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:26:09,373 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:26:09,373 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:26:09,376 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:26:09,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:25:56" (1/3) ... [2024-11-09 01:26:09,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fa9447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:26:09, skipping insertion in model container [2024-11-09 01:26:09,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:00" (2/3) ... [2024-11-09 01:26:09,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fa9447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:26:09, skipping insertion in model container [2024-11-09 01:26:09,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:26:09" (3/3) ... [2024-11-09 01:26:09,379 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness.i [2024-11-09 01:26:09,397 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:26:09,398 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:26:09,463 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:26:09,469 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;@5c34b513, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:26:09,469 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:26:09,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 53 states have internal predecessors, (64), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-09 01:26:09,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 01:26:09,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:09,483 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] [2024-11-09 01:26:09,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:26:09,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:09,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1921279732, now seen corresponding path program 1 times [2024-11-09 01:26:09,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:09,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259224227] [2024-11-09 01:26:09,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:09,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:29:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:30:56,125 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 01:30:56,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:30:56,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259224227] [2024-11-09 01:30:56,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259224227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:30:56,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216296355] [2024-11-09 01:30:56,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:30:56,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:30:56,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:30:56,132 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:30:56,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0de2346-4f8f-40a0-804d-ec0ada96734b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:33:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:33:09,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 7693 conjuncts, 122 conjuncts are in the unsatisfiable core [2024-11-09 01:33:09,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:33:09,982 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 [2024-11-09 01:33:10,851 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-09 01:33:10,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-09 01:33:13,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 01:33:13,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 01:33:13,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 01:33:17,024 INFO L349 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2024-11-09 01:33:17,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 25 [2024-11-09 01:33:21,773 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2024-11-09 01:33:21,774 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 [2024-11-09 01:33:28,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:33:29,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:33:29,042 INFO L349 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2024-11-09 01:33:29,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 948 treesize of output 971 [2024-11-09 01:33:29,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:33:29,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 927 treesize of output 945 [2024-11-09 01:33:29,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:33:29,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:33:29,382 INFO L349 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2024-11-09 01:33:29,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 936 treesize of output 959 [2024-11-09 01:33:29,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:33:29,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 956 treesize of output 944 [2024-11-09 01:33:30,053 INFO L349 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2024-11-09 01:33:30,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 18 [2024-11-09 01:33:31,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:33:32,369 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-09 01:33:32,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 28 [2024-11-09 01:33:32,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:33:33,198 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-09 01:33:33,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 28 [2024-11-09 01:33:33,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:33:33,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 125 [2024-11-09 01:33:34,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 28 [2024-11-09 01:33:34,054 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:33:34,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 23 treesize of output 5 [2024-11-09 01:33:34,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:33:43,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:43,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 225 treesize of output 249 [2024-11-09 01:33:44,194 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:44,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 215 treesize of output 271 [2024-11-09 01:33:44,346 INFO L224 Elim1Store]: Index analysis took 112 ms [2024-11-09 01:33:44,602 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:33:44,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 191 treesize of output 215 [2024-11-09 01:33:53,575 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 01:33:53,576 INFO L311 TraceCheckSpWp]: Computing backward predicates...