./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/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_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/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_775668f4-0f0c-4519-8f65-5b9c1a86adf9/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 6dc5bd60f4d96fc7f9806283fae01bdd9c221bb414825650ea3065ab8880bb4d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:45:46,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:45:46,335 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 04:45:46,341 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:45:46,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:45:46,407 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:45:46,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:45:46,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:45:46,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:45:46,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:45:46,410 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:45:46,411 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:45:46,412 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:45:46,415 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:45:46,415 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:45:46,415 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:45:46,416 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:45:46,420 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:45:46,421 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:45:46,421 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:45:46,422 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:45:46,439 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:45:46,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:45:46,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:45:46,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:45:46,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:45:46,441 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:45:46,441 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:45:46,441 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:45:46,442 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:45:46,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:45:46,442 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:45:46,443 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:45:46,444 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:45:46,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:45:46,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:45:46,445 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:45:46,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:45:46,446 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:45:46,446 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:45:46,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:45:46,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:45:46,447 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:45:46,448 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:45:46,448 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_775668f4-0f0c-4519-8f65-5b9c1a86adf9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dc5bd60f4d96fc7f9806283fae01bdd9c221bb414825650ea3065ab8880bb4d [2024-11-09 04:45:46,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:45:46,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:45:46,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:45:46,856 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:45:46,857 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:45:46,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness_negated.i Unable to find full path for "g++" [2024-11-09 04:45:49,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:45:49,965 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:45:49,970 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness_negated.i [2024-11-09 04:45:50,024 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/data/11b4f517b/fb010fdb03fd4d85b8d103339066c9f6/FLAG419a6c6e5 [2024-11-09 04:45:50,052 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/data/11b4f517b/fb010fdb03fd4d85b8d103339066c9f6 [2024-11-09 04:45:50,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:45:50,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:45:50,061 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:45:50,061 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:45:50,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:45:50,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:45:50" (1/1) ... [2024-11-09 04:45:50,071 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd8c39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:50, skipping insertion in model container [2024-11-09 04:45:50,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:45:50" (1/1) ... [2024-11-09 04:45:50,230 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:45:50,627 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_775668f4-0f0c-4519-8f65-5b9c1a86adf9/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness_negated.i[4499,4512] [2024-11-09 04:45:50,638 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_775668f4-0f0c-4519-8f65-5b9c1a86adf9/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness_negated.i[4559,4572] [2024-11-09 04:45:51,874 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:51,875 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:51,876 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:51,877 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:51,879 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:51,900 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:51,901 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:51,905 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:51,906 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,246 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,247 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:45:53,485 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:45:53,513 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_775668f4-0f0c-4519-8f65-5b9c1a86adf9/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness_negated.i[4499,4512] [2024-11-09 04:45:53,518 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_775668f4-0f0c-4519-8f65-5b9c1a86adf9/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be32_harness_negated.i[4559,4572] [2024-11-09 04:45:53,609 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,610 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,611 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,612 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,613 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,630 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,631 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,633 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,635 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,923 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2024-11-09 04:45:53,926 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,928 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 04:45:53,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2024-11-09 04:45:53,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:45:54,248 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:45:54,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:54 WrapperNode [2024-11-09 04:45:54,249 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:45:54,250 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:45:54,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:45:54,251 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:45:54,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:54" (1/1) ... [2024-11-09 04:45:54,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:54" (1/1) ... [2024-11-09 04:45:54,485 INFO L138 Inliner]: procedures = 680, calls = 2639, calls flagged for inlining = 62, calls inlined = 11, statements flattened = 1027 [2024-11-09 04:45:54,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:45:54,486 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:45:54,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:45:54,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:45:54,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:54" (1/1) ... [2024-11-09 04:45:54,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:54" (1/1) ... [2024-11-09 04:45:54,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:54" (1/1) ... [2024-11-09 04:45:54,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:54" (1/1) ... [2024-11-09 04:45:54,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:54" (1/1) ... [2024-11-09 04:45:54,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:54" (1/1) ... [2024-11-09 04:45:54,611 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:54" (1/1) ... [2024-11-09 04:45:54,620 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:54" (1/1) ... [2024-11-09 04:45:54,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:45:54,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:45:54,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:45:54,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:45:54,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:54" (1/1) ... [2024-11-09 04:45:54,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:45:54,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:45:54,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:45:54,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:45:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2024-11-09 04:45:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2024-11-09 04:45:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-09 04:45:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-09 04:45:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:45:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 04:45:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 04:45:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-09 04:45:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 04:45:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 04:45:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:45:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 04:45:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 04:45:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 04:45:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 04:45:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:45:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:45:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 04:45:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ntoh32 [2024-11-09 04:45:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ntoh32 [2024-11-09 04:45:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:45:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:45:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 04:45:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 04:45:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 04:45:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 04:45:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 04:45:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 04:45:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-09 04:45:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-09 04:45:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:45:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:45:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:45:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 04:45:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 04:45:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 04:45:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 04:45:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:45:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2024-11-09 04:45:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:45:55,215 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:45:55,218 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:46:03,906 INFO L? ?]: Removed 150 outVars from TransFormulas that were not future-live. [2024-11-09 04:46:03,907 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:46:04,867 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:46:04,867 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:46:04,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:04 BoogieIcfgContainer [2024-11-09 04:46:04,868 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:46:04,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:46:04,872 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:46:04,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:46:04,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:45:50" (1/3) ... [2024-11-09 04:46:04,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78390100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:46:04, skipping insertion in model container [2024-11-09 04:46:04,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:45:54" (2/3) ... [2024-11-09 04:46:04,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78390100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:46:04, skipping insertion in model container [2024-11-09 04:46:04,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:04" (3/3) ... [2024-11-09 04:46:04,882 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_be32_harness_negated.i [2024-11-09 04:46:04,909 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:46:04,909 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:46:05,014 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:46:05,026 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;@7c0bd186, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:46:05,029 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:46:05,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 65 states have (on average 1.2) internal successors, (78), 66 states have internal predecessors, (78), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-09 04:46:05,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 04:46:05,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:46:05,054 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] [2024-11-09 04:46:05,056 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:46:05,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:46:05,065 INFO L85 PathProgramCache]: Analyzing trace with hash -382636325, now seen corresponding path program 1 times [2024-11-09 04:46:05,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:46:05,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365181761] [2024-11-09 04:46:05,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:46:05,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:48:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:48:15,234 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-09 04:48:15,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:48:15,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365181761] [2024-11-09 04:48:15,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365181761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:48:15,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947063972] [2024-11-09 04:48:15,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:48:15,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:48:15,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:48:15,241 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:48:15,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:50:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:14,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 7817 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 04:50:14,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:50:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 04:50:14,891 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:50:14,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947063972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:14,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:50:14,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 11 [2024-11-09 04:50:14,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925299578] [2024-11-09 04:50:14,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:14,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:50:14,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:50:14,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:50:14,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-09 04:50:14,937 INFO L87 Difference]: Start difference. First operand has 126 states, 65 states have (on average 1.2) internal successors, (78), 66 states have internal predecessors, (78), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-09 04:50:17,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:19,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:21,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:24,223 WARN L539 Checker$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 04:50:26,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:28,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:31,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:31,254 INFO L93 Difference]: Finished difference Result 239 states and 349 transitions. [2024-11-09 04:50:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:50:31,258 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 82 [2024-11-09 04:50:31,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:31,268 INFO L225 Difference]: With dead ends: 239 [2024-11-09 04:50:31,269 INFO L226 Difference]: Without dead ends: 124 [2024-11-09 04:50:31,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-09 04:50:31,276 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 2 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:31,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 868 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 6 Unknown, 0 Unchecked, 16.2s Time] [2024-11-09 04:50:31,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-09 04:50:31,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-09 04:50:31,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 64 states have (on average 1.171875) internal successors, (75), 65 states have internal predecessors, (75), 48 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 04:50:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 170 transitions. [2024-11-09 04:50:31,358 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 170 transitions. Word has length 82 [2024-11-09 04:50:31,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:31,360 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 170 transitions. [2024-11-09 04:50:31,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-09 04:50:31,361 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 170 transitions. [2024-11-09 04:50:31,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 04:50:31,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:31,365 INFO L215 NwaCegarLoop]: trace histogram [10, 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] [2024-11-09 04:50:31,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:50:31,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 04:50:31,566 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:50:31,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:31,568 INFO L85 PathProgramCache]: Analyzing trace with hash 496735125, now seen corresponding path program 1 times [2024-11-09 04:50:31,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:50:31,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293020287] [2024-11-09 04:50:31,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:31,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:52:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:52:34,785 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 04:52:34,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:52:34,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293020287] [2024-11-09 04:52:34,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293020287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:52:34,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:52:34,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:52:34,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005628966] [2024-11-09 04:52:34,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:52:34,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:52:34,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:52:34,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:52:34,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:52:34,793 INFO L87 Difference]: Start difference. First operand 124 states and 170 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 04:52:37,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:52:39,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:52:41,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:52:43,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:52:43,011 INFO L93 Difference]: Finished difference Result 217 states and 300 transitions. [2024-11-09 04:52:43,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:52:43,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 04:52:43,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:52:43,017 INFO L225 Difference]: With dead ends: 217 [2024-11-09 04:52:43,017 INFO L226 Difference]: Without dead ends: 127 [2024-11-09 04:52:43,019 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 04:52:43,020 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:52:43,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 450 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2024-11-09 04:52:43,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-09 04:52:43,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-09 04:52:43,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 66 states have (on average 1.196969696969697) internal successors, (79), 68 states have internal predecessors, (79), 48 states have call successors, (48), 11 states have call predecessors, (48), 12 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2024-11-09 04:52:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 175 transitions. [2024-11-09 04:52:43,044 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 175 transitions. Word has length 90 [2024-11-09 04:52:43,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:52:43,045 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 175 transitions. [2024-11-09 04:52:43,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 04:52:43,045 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 175 transitions. [2024-11-09 04:52:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-09 04:52:43,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:52:43,049 INFO L215 NwaCegarLoop]: trace histogram [10, 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 04:52:43,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:52:43,049 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:52:43,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:52:43,050 INFO L85 PathProgramCache]: Analyzing trace with hash -362268304, now seen corresponding path program 1 times [2024-11-09 04:52:43,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:52:43,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638084906] [2024-11-09 04:52:43,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:52:43,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:54:49,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:54:53,402 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 04:54:53,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:54:53,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638084906] [2024-11-09 04:54:53,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638084906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:54:53,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381717092] [2024-11-09 04:54:53,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:54:53,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:54:53,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:54:53,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:54:53,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:56:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:56:56,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 7982 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 04:56:56,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:56:56,332 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-09 04:56:56,333 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:56:57,592 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 04:56:57,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381717092] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 04:56:57,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:56:57,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 8 [2024-11-09 04:56:57,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475514374] [2024-11-09 04:56:57,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:56:57,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:56:57,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:56:57,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:56:57,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:56:57,598 INFO L87 Difference]: Start difference. First operand 127 states and 175 transitions. 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 04:56:59,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:57:02,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:57:04,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:57:05,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:57:05,425 INFO L93 Difference]: Finished difference Result 226 states and 317 transitions. [2024-11-09 04:57:05,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:57:05,427 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 91 [2024-11-09 04:57:05,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:57:05,429 INFO L225 Difference]: With dead ends: 226 [2024-11-09 04:57:05,430 INFO L226 Difference]: Without dead ends: 132 [2024-11-09 04:57:05,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:57:05,433 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 4 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:57:05,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 301 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2024-11-09 04:57:05,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-09 04:57:05,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 130. [2024-11-09 04:57:05,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 69 states have (on average 1.1884057971014492) internal successors, (82), 70 states have internal predecessors, (82), 48 states have call successors, (48), 12 states have call predecessors, (48), 12 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2024-11-09 04:57:05,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 178 transitions. [2024-11-09 04:57:05,454 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 178 transitions. Word has length 91 [2024-11-09 04:57:05,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:57:05,455 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 178 transitions. [2024-11-09 04:57:05,455 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 04:57:05,455 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 178 transitions. [2024-11-09 04:57:05,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 04:57:05,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:57:05,458 INFO L215 NwaCegarLoop]: trace histogram [10, 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 04:57:05,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 04:57:05,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:57:05,659 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:57:05,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:57:05,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1801292745, now seen corresponding path program 1 times [2024-11-09 04:57:05,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:57:05,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405502697] [2024-11-09 04:57:05,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:57:05,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:59:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:59:24,035 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-09 04:59:24,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:59:24,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405502697] [2024-11-09 04:59:24,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405502697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:59:24,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796905544] [2024-11-09 04:59:24,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:59:24,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:59:24,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:59:24,040 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:59:24,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_775668f4-0f0c-4519-8f65-5b9c1a86adf9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process