./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2db61bc8caac695a597c69165a9f1c31e5d6287353b2f48b5d9e2ea54ecf275c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 08:47:30,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 08:47:30,082 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 08:47:30,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 08:47:30,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 08:47:30,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 08:47:30,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 08:47:30,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 08:47:30,123 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 08:47:30,123 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 08:47:30,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 08:47:30,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 08:47:30,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 08:47:30,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 08:47:30,125 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 08:47:30,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 08:47:30,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 08:47:30,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 08:47:30,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 08:47:30,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 08:47:30,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 08:47:30,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 08:47:30,135 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 08:47:30,135 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 08:47:30,136 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 08:47:30,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 08:47:30,136 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 08:47:30,136 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 08:47:30,137 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 08:47:30,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:47:30,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 08:47:30,138 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 08:47:30,138 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 08:47:30,138 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 08:47:30,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 08:47:30,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 08:47:30,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 08:47:30,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 08:47:30,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 08:47:30,141 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2db61bc8caac695a597c69165a9f1c31e5d6287353b2f48b5d9e2ea54ecf275c [2024-11-12 08:47:30,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 08:47:30,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 08:47:30,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 08:47:30,425 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 08:47:30,425 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 08:47:30,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2024-11-12 08:47:31,912 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 08:47:32,370 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 08:47:32,371 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2024-11-12 08:47:32,418 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60dceb856/7be5ab954c704ec19cb3a9e7f3196481/FLAG26992acd5 [2024-11-12 08:47:32,436 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60dceb856/7be5ab954c704ec19cb3a9e7f3196481 [2024-11-12 08:47:32,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 08:47:32,441 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 08:47:32,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 08:47:32,443 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 08:47:32,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 08:47:32,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:47:32" (1/1) ... [2024-11-12 08:47:32,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@477202b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:32, skipping insertion in model container [2024-11-12 08:47:32,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:47:32" (1/1) ... [2024-11-12 08:47:32,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 08:47:32,868 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4498,4511] [2024-11-12 08:47:32,878 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4558,4571] [2024-11-12 08:47:33,696 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:33,697 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:33,697 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:33,698 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:33,700 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:33,714 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:33,715 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:33,717 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:33,718 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,225 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,226 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:47:34,378 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 08:47:34,400 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4498,4511] [2024-11-12 08:47:34,401 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i[4558,4571] [2024-11-12 08:47:34,445 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,446 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,446 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,446 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,447 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,452 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,452 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,453 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,453 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-12 08:47:34,710 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,710 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:47:34,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-12 08:47:34,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:47:34,950 INFO L204 MainTranslator]: Completed translation [2024-11-12 08:47:34,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34 WrapperNode [2024-11-12 08:47:34,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 08:47:34,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 08:47:34,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 08:47:34,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 08:47:34,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34" (1/1) ... [2024-11-12 08:47:35,051 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34" (1/1) ... [2024-11-12 08:47:35,182 INFO L138 Inliner]: procedures = 680, calls = 2625, calls flagged for inlining = 63, calls inlined = 9, statements flattened = 863 [2024-11-12 08:47:35,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 08:47:35,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 08:47:35,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 08:47:35,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 08:47:35,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34" (1/1) ... [2024-11-12 08:47:35,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34" (1/1) ... [2024-11-12 08:47:35,207 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34" (1/1) ... [2024-11-12 08:47:35,295 INFO L175 MemorySlicer]: Split 538 memory accesses to 7 slices as follows [2, 257, 238, 8, 22, 6, 5]. 48 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 0, 6, 0, 2, 0, 5]. The 492 writes are split as follows [0, 257, 232, 0, 1, 2, 0]. [2024-11-12 08:47:35,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34" (1/1) ... [2024-11-12 08:47:35,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34" (1/1) ... [2024-11-12 08:47:35,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34" (1/1) ... [2024-11-12 08:47:35,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34" (1/1) ... [2024-11-12 08:47:35,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34" (1/1) ... [2024-11-12 08:47:35,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34" (1/1) ... [2024-11-12 08:47:35,381 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 08:47:35,382 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 08:47:35,382 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 08:47:35,382 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 08:47:35,383 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34" (1/1) ... [2024-11-12 08:47:35,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:47:35,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:47:35,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 08:47:35,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 08:47:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2024-11-12 08:47:35,468 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2024-11-12 08:47:35,468 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-12 08:47:35,469 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-12 08:47:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 08:47:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-12 08:47:35,469 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-12 08:47:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 08:47:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 08:47:35,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 08:47:35,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 08:47:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-12 08:47:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-12 08:47:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-12 08:47:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 08:47:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 08:47:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 08:47:35,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 08:47:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 08:47:35,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-12 08:47:35,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-12 08:47:35,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 08:47:35,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 08:47:35,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 08:47:35,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 08:47:35,473 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-12 08:47:35,473 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-12 08:47:35,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 08:47:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 08:47:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 08:47:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 08:47:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 08:47:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-12 08:47:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-12 08:47:35,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 08:47:35,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 08:47:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-12 08:47:35,475 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-12 08:47:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-12 08:47:35,475 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-12 08:47:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-12 08:47:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-12 08:47:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-12 08:47:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-12 08:47:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-12 08:47:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-12 08:47:35,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-12 08:47:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 08:47:35,476 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 08:47:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 08:47:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 08:47:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 08:47:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 08:47:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 08:47:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 08:47:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-12 08:47:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-12 08:47:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 08:47:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 08:47:35,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 08:47:35,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 08:47:35,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-12 08:47:35,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-12 08:47:35,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-12 08:47:35,477 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-12 08:47:35,477 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-12 08:47:35,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 08:47:35,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 08:47:35,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 08:47:35,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 08:47:35,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 08:47:35,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-12 08:47:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-12 08:47:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 08:47:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 08:47:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 08:47:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 08:47:35,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 08:47:35,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-12 08:47:35,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-12 08:47:35,798 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 08:47:35,800 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 08:47:44,024 INFO L? ?]: Removed 102 outVars from TransFormulas that were not future-live. [2024-11-12 08:47:44,024 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 08:47:44,042 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 08:47:44,043 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 08:47:44,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:47:44 BoogieIcfgContainer [2024-11-12 08:47:44,043 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 08:47:44,046 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 08:47:44,046 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 08:47:44,050 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 08:47:44,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:47:32" (1/3) ... [2024-11-12 08:47:44,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86bcb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:47:44, skipping insertion in model container [2024-11-12 08:47:44,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:47:34" (2/3) ... [2024-11-12 08:47:44,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86bcb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:47:44, skipping insertion in model container [2024-11-12 08:47:44,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:47:44" (3/3) ... [2024-11-12 08:47:44,054 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_c_str_harness.i [2024-11-12 08:47:44,072 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 08:47:44,073 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 08:47:44,153 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:47:44,162 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=PETRI_NET, 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;@66e6cf73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:47:44,164 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 08:47:44,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 79 states have (on average 1.2531645569620253) internal successors, (99), 81 states have internal predecessors, (99), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-12 08:47:44,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-12 08:47:44,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:47:44,186 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:47:44,187 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:47:44,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:47:44,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1360230449, now seen corresponding path program 1 times [2024-11-12 08:47:44,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:47:44,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51667004] [2024-11-12 08:47:44,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:47:44,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:48:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 08:49:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-12 08:49:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-12 08:49:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:49:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 08:49:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-12 08:49:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-12 08:49:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-12 08:49:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-12 08:49:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 08:49:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-12 08:49:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 08:49:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 08:49:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-12 08:49:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-12 08:49:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:49:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 08:49:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-12 08:49:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:49:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-12 08:49:00,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:49:00,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51667004] [2024-11-12 08:49:00,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51667004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:49:00,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:49:00,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 08:49:00,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57862276] [2024-11-12 08:49:00,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:49:00,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 08:49:00,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:49:00,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 08:49:00,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 08:49:00,715 INFO L87 Difference]: Start difference. First operand has 121 states, 79 states have (on average 1.2531645569620253) internal successors, (99), 81 states have internal predecessors, (99), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-12 08:49:04,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:49:07,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:49:07,506 INFO L93 Difference]: Finished difference Result 239 states and 342 transitions. [2024-11-12 08:49:07,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 08:49:07,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 114 [2024-11-12 08:49:07,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:49:07,517 INFO L225 Difference]: With dead ends: 239 [2024-11-12 08:49:07,517 INFO L226 Difference]: Without dead ends: 118 [2024-11-12 08:49:07,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 08:49:07,523 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 106 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 69 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-12 08:49:07,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 174 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 128 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2024-11-12 08:49:07,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-12 08:49:07,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2024-11-12 08:49:07,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 75 states have (on average 1.2133333333333334) internal successors, (91), 76 states have internal predecessors, (91), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-12 08:49:07,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 152 transitions. [2024-11-12 08:49:07,576 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 152 transitions. Word has length 114 [2024-11-12 08:49:07,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:49:07,578 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 152 transitions. [2024-11-12 08:49:07,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-12 08:49:07,578 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 152 transitions. [2024-11-12 08:49:07,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-12 08:49:07,582 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:49:07,582 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:49:07,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 08:49:07,583 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:49:07,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:49:07,584 INFO L85 PathProgramCache]: Analyzing trace with hash 509490785, now seen corresponding path program 1 times [2024-11-12 08:49:07,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:49:07,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748678748] [2024-11-12 08:49:07,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:49:07,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms