./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_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_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/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_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/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_8d7c1635-63b3-4c43-b69d-a55c91917f89/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 9b90640eabcf61bf9b6c4e01fcd2a39b8b829676407f71504872cd65ce1f895a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:00:43,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:00:44,059 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:00:44,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:00:44,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:00:44,095 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:00:44,095 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:00:44,096 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:00:44,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:00:44,097 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:00:44,098 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:00:44,098 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:00:44,099 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:00:44,099 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:00:44,100 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:00:44,100 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:00:44,100 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:00:44,106 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:00:44,106 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:00:44,107 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:00:44,107 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:00:44,108 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:00:44,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:00:44,110 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:00:44,110 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:00:44,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:00:44,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:00:44,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:00:44,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:00:44,112 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:00:44,112 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:00:44,112 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:00:44,113 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:00:44,113 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:00:44,114 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:00:44,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:00:44,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:00:44,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:00:44,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:00:44,116 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:00:44,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:00:44,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:00:44,116 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:00:44,117 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:00:44,117 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_8d7c1635-63b3-4c43-b69d-a55c91917f89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b90640eabcf61bf9b6c4e01fcd2a39b8b829676407f71504872cd65ce1f895a [2024-11-09 05:00:44,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:00:44,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:00:44,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:00:44,501 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:00:44,501 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:00:44,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i Unable to find full path for "g++" [2024-11-09 05:00:46,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:00:47,436 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:00:47,436 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i [2024-11-09 05:00:47,492 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/data/fc9f226a2/14d7b9ef01fa43a589f77720ba397cef/FLAG69b148516 [2024-11-09 05:00:47,728 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/data/fc9f226a2/14d7b9ef01fa43a589f77720ba397cef [2024-11-09 05:00:47,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:00:47,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:00:47,736 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:00:47,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:00:47,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:00:47,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:00:47" (1/1) ... [2024-11-09 05:00:47,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@95373a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:47, skipping insertion in model container [2024-11-09 05:00:47,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:00:47" (1/1) ... [2024-11-09 05:00:47,929 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:00:48,331 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_8d7c1635-63b3-4c43-b69d-a55c91917f89/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i[4499,4512] [2024-11-09 05:00:48,343 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_8d7c1635-63b3-4c43-b69d-a55c91917f89/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i[4559,4572] [2024-11-09 05:00:49,863 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:49,864 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:49,865 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:49,866 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:49,868 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:49,891 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:49,892 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:49,895 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:49,896 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,093 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,094 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:00:51,293 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:00:51,315 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_8d7c1635-63b3-4c43-b69d-a55c91917f89/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i[4499,4512] [2024-11-09 05:00:51,316 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_8d7c1635-63b3-4c43-b69d-a55c91917f89/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i[4559,4572] [2024-11-09 05:00:51,367 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,368 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,368 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,369 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,369 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,377 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,378 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,379 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,380 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-11-09 05:00:51,578 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,579 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 05:00:51,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2024-11-09 05:00:51,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:00:51,917 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:00:51,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:51 WrapperNode [2024-11-09 05:00:51,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:00:51,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:00:51,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:00:51,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:00:51,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:51" (1/1) ... [2024-11-09 05:00:52,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:51" (1/1) ... [2024-11-09 05:00:52,202 INFO L138 Inliner]: procedures = 680, calls = 2639, calls flagged for inlining = 61, calls inlined = 11, statements flattened = 1027 [2024-11-09 05:00:52,203 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:00:52,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:00:52,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:00:52,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:00:52,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:51" (1/1) ... [2024-11-09 05:00:52,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:51" (1/1) ... [2024-11-09 05:00:52,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:51" (1/1) ... [2024-11-09 05:00:52,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:51" (1/1) ... [2024-11-09 05:00:52,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:51" (1/1) ... [2024-11-09 05:00:52,308 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:51" (1/1) ... [2024-11-09 05:00:52,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:51" (1/1) ... [2024-11-09 05:00:52,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:51" (1/1) ... [2024-11-09 05:00:52,351 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:00:52,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:00:52,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:00:52,356 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:00:52,357 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:51" (1/1) ... [2024-11-09 05:00:52,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:00:52,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:00:52,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:00:52,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:00:52,454 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-11-09 05:00:52,454 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-11-09 05:00:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hton64 [2024-11-09 05:00:52,457 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hton64 [2024-11-09 05:00:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-09 05:00:52,457 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-09 05:00:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:00:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 05:00:52,458 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 05:00:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-09 05:00:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 05:00:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 05:00:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ntoh64 [2024-11-09 05:00:52,459 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ntoh64 [2024-11-09 05:00:52,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:00:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 05:00:52,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 05:00:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:00:52,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:00:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:00:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:00:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:00:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:00:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:00:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 05:00:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 05:00:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 05:00:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 05:00:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 05:00:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 05:00:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-09 05:00:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-09 05:00:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:00:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:00:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:00:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:00:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:00:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 05:00:52,463 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 05:00:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:00:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_big_endian [2024-11-09 05:00:52,465 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_big_endian [2024-11-09 05:00:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2024-11-09 05:00:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:00:52,838 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:00:52,841 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:01:00,386 INFO L? ?]: Removed 159 outVars from TransFormulas that were not future-live. [2024-11-09 05:01:00,386 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:01:01,481 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:01:01,482 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:01:01,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:01:01 BoogieIcfgContainer [2024-11-09 05:01:01,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:01:01,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:01:01,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:01:01,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:01:01,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:00:47" (1/3) ... [2024-11-09 05:01:01,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5763459c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:01:01, skipping insertion in model container [2024-11-09 05:01:01,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:51" (2/3) ... [2024-11-09 05:01:01,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5763459c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:01:01, skipping insertion in model container [2024-11-09 05:01:01,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:01:01" (3/3) ... [2024-11-09 05:01:01,494 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_be64_harness.i [2024-11-09 05:01:01,515 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:01:01,516 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:01:01,608 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:01:01,617 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;@528e6110, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:01:01,618 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:01:01,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 69 states have (on average 1.1884057971014492) internal successors, (82), 70 states have internal predecessors, (82), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 05:01:01,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 05:01:01,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:01,638 INFO L215 NwaCegarLoop]: trace histogram [9, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:01,639 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:01:01,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:01,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1369178122, now seen corresponding path program 1 times [2024-11-09 05:01:01,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:01:01,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558670079] [2024-11-09 05:01:01,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:01,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:02:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:03:01,602 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-09 05:03:01,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:03:01,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558670079] [2024-11-09 05:03:01,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558670079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:03:01,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:03:01,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:03:01,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472215699] [2024-11-09 05:03:01,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:03:01,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:03:01,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:03:01,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:03:01,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:03:01,657 INFO L87 Difference]: Start difference. First operand has 134 states, 69 states have (on average 1.1884057971014492) internal successors, (82), 70 states have internal predecessors, (82), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:03:04,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:03:06,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:03:08,608 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 [] [2024-11-09 05:03:09,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:03:09,945 INFO L93 Difference]: Finished difference Result 237 states and 339 transitions. [2024-11-09 05:03:09,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:03:09,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 90 [2024-11-09 05:03:09,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:03:09,966 INFO L225 Difference]: With dead ends: 237 [2024-11-09 05:03:09,967 INFO L226 Difference]: Without dead ends: 135 [2024-11-09 05:03:09,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:03:09,975 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 1 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:03:09,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 474 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2024-11-09 05:03:09,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-09 05:03:10,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-09 05:03:10,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 70 states have (on average 1.2) internal successors, (84), 72 states have internal predecessors, (84), 50 states have call successors, (50), 13 states have call predecessors, (50), 14 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2024-11-09 05:03:10,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 184 transitions. [2024-11-09 05:03:10,043 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 184 transitions. Word has length 90 [2024-11-09 05:03:10,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:03:10,044 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 184 transitions. [2024-11-09 05:03:10,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:03:10,045 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 184 transitions. [2024-11-09 05:03:10,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-09 05:03:10,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:03:10,050 INFO L215 NwaCegarLoop]: trace histogram [9, 5, 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, 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 05:03:10,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:03:10,051 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:03:10,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:03:10,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1593148294, now seen corresponding path program 1 times [2024-11-09 05:03:10,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:03:10,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290339363] [2024-11-09 05:03:10,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:03:10,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:04:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:05:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-09 05:05:10,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:05:10,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290339363] [2024-11-09 05:05:10,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290339363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:05:10,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81964395] [2024-11-09 05:05:10,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:05:10,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:05:10,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:05:10,027 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:05:10,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:07:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:07:21,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 7986 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:07:21,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:07:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 05:07:22,152 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:07:23,596 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-09 05:07:23,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81964395] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:07:23,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:07:23,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10, 5] total 14 [2024-11-09 05:07:23,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460157402] [2024-11-09 05:07:23,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:07:23,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:07:23,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:07:23,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:07:23,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:07:23,602 INFO L87 Difference]: Start difference. First operand 135 states and 184 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:07:25,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:07:28,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:07:30,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:07:31,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:07:31,611 INFO L93 Difference]: Finished difference Result 242 states and 334 transitions. [2024-11-09 05:07:31,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:07:31,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 91 [2024-11-09 05:07:31,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:07:31,615 INFO L225 Difference]: With dead ends: 242 [2024-11-09 05:07:31,615 INFO L226 Difference]: Without dead ends: 140 [2024-11-09 05:07:31,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:07:31,618 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 4 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:07:31,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 470 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2024-11-09 05:07:31,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-09 05:07:31,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2024-11-09 05:07:31,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 73 states have (on average 1.1917808219178083) internal successors, (87), 74 states have internal predecessors, (87), 50 states have call successors, (50), 14 states have call predecessors, (50), 14 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2024-11-09 05:07:31,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 187 transitions. [2024-11-09 05:07:31,641 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 187 transitions. Word has length 91 [2024-11-09 05:07:31,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:07:31,641 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 187 transitions. [2024-11-09 05:07:31,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:07:31,642 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 187 transitions. [2024-11-09 05:07:31,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 05:07:31,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:07:31,645 INFO L215 NwaCegarLoop]: trace histogram [9, 5, 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, 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 05:07:31,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:07:31,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:07:31,846 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:07:31,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:07:31,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1817531320, now seen corresponding path program 1 times [2024-11-09 05:07:31,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:07:31,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971933238] [2024-11-09 05:07:31,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:07:31,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:12,060 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-09 05:10:12,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:12,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971933238] [2024-11-09 05:10:12,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971933238] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:10:12,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665571146] [2024-11-09 05:10:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:12,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:12,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:12,065 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:12,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d7c1635-63b3-4c43-b69d-a55c91917f89/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:12:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:27,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 8009 conjuncts, 222 conjuncts are in the unsatisfiable core [2024-11-09 05:12:27,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:27,463 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 05:12:27,754 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 [2024-11-09 05:12:32,211 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-09 05:12:32,212 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 05:12:32,351 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 05:12:32,409 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 05:12:44,687 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 05:12:44,688 INFO L311 TraceCheckSpWp]: Computing backward predicates...