./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_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_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/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_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/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_fc762559-113b-4baa-b69c-9b88b28cb7b4/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 675ab2caa96cd9b2eb6b721efd0b1d83fbee049c822d5b953bd418a0212be644 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:19:53,006 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:19:53,073 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 06:19:53,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:19:53,079 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:19:53,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:19:53,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:19:53,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:19:53,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:19:53,105 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:19:53,105 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:19:53,106 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:19:53,106 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:19:53,106 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:19:53,107 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:19:53,107 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:19:53,108 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:19:53,108 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:19:53,108 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:19:53,109 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:19:53,109 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:19:53,110 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:19:53,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:19:53,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:19:53,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:19:53,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:19:53,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:19:53,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:19:53,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:19:53,113 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:19:53,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:19:53,113 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:19:53,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:19:53,119 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:19:53,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:19:53,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:19:53,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:19:53,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:19:53,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:19:53,122 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:19:53,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:19:53,123 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:19:53,123 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:19:53,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:19:53,124 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_fc762559-113b-4baa-b69c-9b88b28cb7b4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 675ab2caa96cd9b2eb6b721efd0b1d83fbee049c822d5b953bd418a0212be644 [2024-11-09 06:19:53,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:19:53,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:19:53,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:19:53,422 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:19:53,423 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:19:53,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i Unable to find full path for "g++" [2024-11-09 06:19:55,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:19:55,996 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:19:55,997 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i [2024-11-09 06:19:56,039 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje/data/682e897bb/86300077b5be46fc8c4f65bab6893daa/FLAG51e0a6dac [2024-11-09 06:19:56,060 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje/data/682e897bb/86300077b5be46fc8c4f65bab6893daa [2024-11-09 06:19:56,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:19:56,065 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:19:56,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:19:56,069 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:19:56,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:19:56,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:19:56" (1/1) ... [2024-11-09 06:19:56,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d6a4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:56, skipping insertion in model container [2024-11-09 06:19:56,077 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:19:56" (1/1) ... [2024-11-09 06:19:56,227 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:19:56,533 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_fc762559-113b-4baa-b69c-9b88b28cb7b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2024-11-09 06:19:56,542 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_fc762559-113b-4baa-b69c-9b88b28cb7b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2024-11-09 06:19:57,608 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:57,610 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:57,610 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:57,611 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:57,613 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:57,629 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:57,631 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:57,633 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:57,634 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:58,502 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:58,503 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:58,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:19:58,688 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:19:58,710 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_fc762559-113b-4baa-b69c-9b88b28cb7b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4493,4506] [2024-11-09 06:19:58,711 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_fc762559-113b-4baa-b69c-9b88b28cb7b4/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_harness.i[4553,4566] [2024-11-09 06:19:58,774 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:58,779 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:58,779 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:58,780 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:58,781 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:58,795 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:58,797 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:58,799 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:58,800 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:59,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2024-11-09 06:19:59,050 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:59,051 WARN L1698 CHandler]: Possible shadowing of function index [2024-11-09 06:19:59,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2024-11-09 06:19:59,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:19:59,373 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:19:59,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:59 WrapperNode [2024-11-09 06:19:59,374 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:19:59,375 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:19:59,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:19:59,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:19:59,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:59" (1/1) ... [2024-11-09 06:19:59,465 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:59" (1/1) ... [2024-11-09 06:19:59,529 INFO L138 Inliner]: procedures = 680, calls = 2643, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 869 [2024-11-09 06:19:59,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:19:59,531 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:19:59,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:19:59,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:19:59,542 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:59" (1/1) ... [2024-11-09 06:19:59,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:59" (1/1) ... [2024-11-09 06:19:59,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:59" (1/1) ... [2024-11-09 06:19:59,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:59" (1/1) ... [2024-11-09 06:19:59,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:59" (1/1) ... [2024-11-09 06:19:59,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:59" (1/1) ... [2024-11-09 06:19:59,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:59" (1/1) ... [2024-11-09 06:19:59,600 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:59" (1/1) ... [2024-11-09 06:19:59,620 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:19:59,621 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:19:59,621 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:19:59,621 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:19:59,622 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:59" (1/1) ... [2024-11-09 06:19:59,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:19:59,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:19:59,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:19:59,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:19:59,692 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-09 06:19:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-09 06:19:59,693 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-09 06:19:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-09 06:19:59,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:19:59,693 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 06:19:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 06:19:59,693 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_append [2024-11-09 06:19:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_append [2024-11-09 06:19:59,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 06:19:59,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:19:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-09 06:19:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-09 06:19:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:19:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:19:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:19:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:19:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:19:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-09 06:19:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-09 06:19:59,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:19:59,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:19:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 06:19:59,695 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 06:19:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 06:19:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:19:59,731 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:19:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-09 06:19:59,731 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-09 06:19:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:19:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:19:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 06:19:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 06:19:59,733 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 06:19:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2024-11-09 06:19:59,733 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2024-11-09 06:19:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 06:19:59,735 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 06:19:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:19:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:20:00,130 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:20:00,133 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:20:07,836 INFO L? ?]: Removed 99 outVars from TransFormulas that were not future-live. [2024-11-09 06:20:07,836 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:20:09,250 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:20:09,250 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:20:09,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:20:09 BoogieIcfgContainer [2024-11-09 06:20:09,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:20:09,253 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:20:09,253 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:20:09,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:20:09,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:19:56" (1/3) ... [2024-11-09 06:20:09,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a18ed3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:20:09, skipping insertion in model container [2024-11-09 06:20:09,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:19:59" (2/3) ... [2024-11-09 06:20:09,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a18ed3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:20:09, skipping insertion in model container [2024-11-09 06:20:09,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:20:09" (3/3) ... [2024-11-09 06:20:09,260 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_harness.i [2024-11-09 06:20:09,281 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:20:09,281 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:20:09,355 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:20:09,362 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;@5df4251a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:20:09,363 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:20:09,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 63 states have (on average 1.1587301587301588) internal successors, (73), 64 states have internal predecessors, (73), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-09 06:20:09,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 06:20:09,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:20:09,385 INFO L215 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:20:09,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:20:09,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:20:09,391 INFO L85 PathProgramCache]: Analyzing trace with hash -487749287, now seen corresponding path program 1 times [2024-11-09 06:20:09,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:20:09,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988555609] [2024-11-09 06:20:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:20:09,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:22:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-09 06:23:08,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:08,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988555609] [2024-11-09 06:23:08,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988555609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:08,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:08,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 06:23:08,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084185368] [2024-11-09 06:23:08,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:08,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:23:08,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:08,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:23:08,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:23:08,779 INFO L87 Difference]: Start difference. First operand has 126 states, 63 states have (on average 1.1587301587301588) internal successors, (73), 64 states have internal predecessors, (73), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 14 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-09 06:23:10,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:13,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:15,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:17,986 WARN L539 Checker$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 06:23:20,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:22,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:24,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:27,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:29,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:32,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:34,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:36,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:23:46,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:46,172 INFO L93 Difference]: Finished difference Result 250 states and 366 transitions. [2024-11-09 06:23:46,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:23:46,176 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) Word has length 63 [2024-11-09 06:23:46,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:46,188 INFO L225 Difference]: With dead ends: 250 [2024-11-09 06:23:46,189 INFO L226 Difference]: Without dead ends: 163 [2024-11-09 06:23:46,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2024-11-09 06:23:46,197 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 61 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 48 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:46,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1044 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 757 Invalid, 12 Unknown, 0 Unchecked, 35.4s Time] [2024-11-09 06:23:46,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-09 06:23:46,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 146. [2024-11-09 06:23:46,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 72 states have (on average 1.125) internal successors, (81), 74 states have internal predecessors, (81), 59 states have call successors, (59), 14 states have call predecessors, (59), 14 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-09 06:23:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 198 transitions. [2024-11-09 06:23:46,295 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 198 transitions. Word has length 63 [2024-11-09 06:23:46,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:46,296 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 198 transitions. [2024-11-09 06:23:46,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-09 06:23:46,297 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 198 transitions. [2024-11-09 06:23:46,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 06:23:46,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:46,300 INFO L215 NwaCegarLoop]: trace histogram [7, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:23:46,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:23:46,301 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:23:46,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:46,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1804336842, now seen corresponding path program 1 times [2024-11-09 06:23:46,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:46,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051421586] [2024-11-09 06:23:46,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:46,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:26:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:06,854 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 06:27:06,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:27:06,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051421586] [2024-11-09 06:27:06,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051421586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:27:06,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615706926] [2024-11-09 06:27:06,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:06,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:27:06,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:27:06,858 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:27:06,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc762559-113b-4baa-b69c-9b88b28cb7b4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:29:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:02,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 7648 conjuncts, 102 conjuncts are in the unsatisfiable core [2024-11-09 06:29:02,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:04,402 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 06:29:04,480 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 06:29:23,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 66 [2024-11-09 06:29:23,304 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-09 06:29:23,304 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 86 treesize of output 77 [2024-11-09 06:29:23,466 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-09 06:29:23,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 78 [2024-11-09 06:30:04,423 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:04,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 422 treesize of output 602 [2024-11-09 06:30:04,763 INFO L224 Elim1Store]: Index analysis took 310 ms [2024-11-09 06:30:08,098 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:08,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 1 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 101 case distinctions, treesize of input 378 treesize of output 686 [2024-11-09 06:30:08,674 INFO L224 Elim1Store]: Index analysis took 517 ms [2024-11-09 06:30:10,388 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:10,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 278 treesize of output 458