./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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_from_buf_harness_negated.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 3d97d04097e42514d5700bbc256d61ac595fb6c5eca16e749be15c2d6158293f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:53:21,368 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:53:21,433 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 19:53:21,457 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:53:21,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:53:21,485 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:53:21,487 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:53:21,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:53:21,488 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:53:21,491 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:53:21,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:53:21,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:53:21,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:53:21,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:53:21,492 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:53:21,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:53:21,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:53:21,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:53:21,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:53:21,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:53:21,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:53:21,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:53:21,495 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:53:21,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:53:21,496 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:53:21,496 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:53:21,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:53:21,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:53:21,497 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:53:21,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:53:21,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:53:21,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:53:21,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:53:21,498 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:53:21,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:53:21,498 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:53:21,498 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:53:21,499 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:53:21,499 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:53:21,499 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d97d04097e42514d5700bbc256d61ac595fb6c5eca16e749be15c2d6158293f [2024-11-16 19:53:21,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:53:21,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:53:21,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:53:21,731 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:53:21,731 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:53:21,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness_negated.i [2024-11-16 19:53:23,030 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:53:23,392 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:53:23,393 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_from_buf_harness_negated.i [2024-11-16 19:53:23,429 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d910eb4aa/e3f9746de5cc4bdbb9a34eab98652c78/FLAG06836b872 [2024-11-16 19:53:23,442 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d910eb4aa/e3f9746de5cc4bdbb9a34eab98652c78 [2024-11-16 19:53:23,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:53:23,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:53:23,448 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:53:23,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:53:23,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:53:23,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:53:23" (1/1) ... [2024-11-16 19:53:23,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c2d76dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:23, skipping insertion in model container [2024-11-16 19:53:23,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:53:23" (1/1) ... [2024-11-16 19:53:23,559 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:53:23,772 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_from_buf_harness_negated.i[4498,4511] [2024-11-16 19:53:23,777 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_from_buf_harness_negated.i[4558,4571] [2024-11-16 19:53:24,263 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,264 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,264 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,265 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,265 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,274 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,275 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,276 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,277 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,642 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,643 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:53:24,776 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:53:24,791 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_from_buf_harness_negated.i[4498,4511] [2024-11-16 19:53:24,794 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_from_buf_harness_negated.i[4558,4571] [2024-11-16 19:53:24,829 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,830 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,831 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,831 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,832 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,838 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,840 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,841 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,841 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2024-11-16 19:53:24,948 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:24,948 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:53:25,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2024-11-16 19:53:25,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:53:25,213 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:53:25,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25 WrapperNode [2024-11-16 19:53:25,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:53:25,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:53:25,214 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:53:25,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:53:25,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25" (1/1) ... [2024-11-16 19:53:25,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25" (1/1) ... [2024-11-16 19:53:25,355 INFO L138 Inliner]: procedures = 679, calls = 2633, calls flagged for inlining = 61, calls inlined = 9, statements flattened = 870 [2024-11-16 19:53:25,355 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:53:25,356 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:53:25,356 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:53:25,356 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:53:25,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25" (1/1) ... [2024-11-16 19:53:25,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25" (1/1) ... [2024-11-16 19:53:25,374 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25" (1/1) ... [2024-11-16 19:53:25,486 INFO L175 MemorySlicer]: Split 565 memory accesses to 6 slices as follows [2, 257, 39, 247, 14, 6]. 45 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 0, 8, 11, 2, 0]. The 495 writes are split as follows [0, 257, 2, 232, 2, 2]. [2024-11-16 19:53:25,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25" (1/1) ... [2024-11-16 19:53:25,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25" (1/1) ... [2024-11-16 19:53:25,524 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25" (1/1) ... [2024-11-16 19:53:25,525 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25" (1/1) ... [2024-11-16 19:53:25,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25" (1/1) ... [2024-11-16 19:53:25,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25" (1/1) ... [2024-11-16 19:53:25,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:53:25,550 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:53:25,550 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:53:25,550 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:53:25,551 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25" (1/1) ... [2024-11-16 19:53:25,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:53:25,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:53:25,585 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) [2024-11-16 19:53:25,590 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 [2024-11-16 19:53:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-16 19:53:25,626 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-16 19:53:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-16 19:53:25,626 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-16 19:53:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:53:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 19:53:25,626 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 19:53:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 19:53:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 19:53:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 19:53:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 19:53:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 19:53:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 19:53:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:53:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:53:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:53:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:53:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:53:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:53:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 19:53:25,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 19:53:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_from_buf [2024-11-16 19:53:25,629 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_from_buf [2024-11-16 19:53:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:53:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:53:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:53:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:53:25,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:53:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:53:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:53:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 19:53:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:53:25,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:53:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 19:53:25,630 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 19:53:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-16 19:53:25,630 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-16 19:53:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 19:53:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 19:53:25,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 19:53:25,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 19:53:25,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 19:53:25,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 19:53:25,631 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 19:53:25,631 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 19:53:25,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:53:25,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:53:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:53:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:53:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:53:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:53:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 19:53:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:53:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:53:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:53:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:53:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 19:53:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 19:53:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-16 19:53:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-16 19:53:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-16 19:53:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-16 19:53:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:53:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:53:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:53:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:53:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:53:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:53:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:53:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:53:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:53:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:53:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:53:25,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:53:25,892 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:53:25,894 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:53:25,919 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-16 19:53:25,935 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-16 19:53:25,964 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7345: havoc #t~mem678;havoc #t~mem679;havoc #t~short680;havoc #t~mem681.base, #t~mem681.offset;havoc #t~short682;havoc #t~mem683;havoc #t~mem684;havoc #t~mem685;havoc #t~short686;havoc #t~mem687;havoc #t~mem688.base, #t~mem688.offset;havoc #t~short689;havoc #t~short690;havoc #t~short691;havoc #t~short692; [2024-11-16 19:53:25,984 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 19:53:26,012 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7355: havoc #t~mem693;havoc #t~mem694;havoc #t~mem695.base, #t~mem695.offset;havoc #t~short696;havoc #t~mem697;havoc #t~mem698.base, #t~mem698.offset;havoc #t~short699;havoc #t~short700;havoc #t~short701;havoc #t~short702; [2024-11-16 19:53:26,034 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8208: havoc #t~mem1071;havoc #t~mem1072.base, #t~mem1072.offset;call ULTIMATE.dealloc(~#cur~0.base, ~#cur~0.offset);havoc ~#cur~0.base, ~#cur~0.offset; [2024-11-16 19:53:33,319 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2024-11-16 19:53:33,320 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2024-11-16 19:53:33,344 INFO L? ?]: Removed 125 outVars from TransFormulas that were not future-live. [2024-11-16 19:53:33,344 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:53:33,355 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:53:33,355 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:53:33,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:53:33 BoogieIcfgContainer [2024-11-16 19:53:33,355 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:53:33,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:53:33,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:53:33,359 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:53:33,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:53:23" (1/3) ... [2024-11-16 19:53:33,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1349c5f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:53:33, skipping insertion in model container [2024-11-16 19:53:33,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:53:25" (2/3) ... [2024-11-16 19:53:33,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1349c5f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:53:33, skipping insertion in model container [2024-11-16 19:53:33,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:53:33" (3/3) ... [2024-11-16 19:53:33,365 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_from_buf_harness_negated.i [2024-11-16 19:53:33,377 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:53:33,378 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:53:33,419 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:53:33,424 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;@71a2611c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:53:33,425 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 19:53:33,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 89 states have (on average 1.247191011235955) internal successors, (111), 90 states have internal predecessors, (111), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-16 19:53:33,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-16 19:53:33,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:53:33,437 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 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] [2024-11-16 19:53:33,438 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:53:33,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:53:33,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1024331500, now seen corresponding path program 1 times [2024-11-16 19:53:33,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:53:33,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758481760] [2024-11-16 19:53:33,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:53:33,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:54:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:54:47,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 19:54:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:54:47,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 19:54:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:54:47,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 19:54:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:54:47,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:54:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:54:47,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 19:54:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:54:47,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 19:54:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:54:47,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 19:54:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:54:47,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 19:54:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:54:47,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 19:54:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:54:47,662 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-16 19:54:47,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:54:47,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758481760] [2024-11-16 19:54:47,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758481760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:54:47,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:54:47,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:54:47,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103651817] [2024-11-16 19:54:47,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:54:47,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:54:47,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:54:47,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:54:47,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:54:47,697 INFO L87 Difference]: Start difference. First operand has 129 states, 89 states have (on average 1.247191011235955) internal successors, (111), 90 states have internal predecessors, (111), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 19:54:51,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 19:54:53,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 19:54:53,730 INFO L93 Difference]: Finished difference Result 253 states and 348 transitions. [2024-11-16 19:54:53,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:54:53,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2024-11-16 19:54:53,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 19:54:53,738 INFO L225 Difference]: With dead ends: 253 [2024-11-16 19:54:53,738 INFO L226 Difference]: Without dead ends: 121 [2024-11-16 19:54:53,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:54:53,742 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 62 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-16 19:54:53,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 139 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 95 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2024-11-16 19:54:53,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-16 19:54:53,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-16 19:54:53,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 82 states have (on average 1.2195121951219512) internal successors, (100), 83 states have internal predecessors, (100), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-16 19:54:53,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 155 transitions. [2024-11-16 19:54:53,777 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 155 transitions. Word has length 65 [2024-11-16 19:54:53,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 19:54:53,778 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 155 transitions. [2024-11-16 19:54:53,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 19:54:53,778 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 155 transitions. [2024-11-16 19:54:53,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-16 19:54:53,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:54:53,780 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 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] [2024-11-16 19:54:53,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:54:53,780 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:54:53,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:54:53,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1693957968, now seen corresponding path program 1 times [2024-11-16 19:54:53,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:54:53,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83280244] [2024-11-16 19:54:53,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:54:53,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms