./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.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_ring_buffer_acquire_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 5d24b296895bb1aad8d34c2d7efdb39aad00aa64487bccb479278d36c5a9a207 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 20:03:15,436 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 20:03:15,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 20:03:15,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 20:03:15,542 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 20:03:15,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 20:03:15,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 20:03:15,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 20:03:15,582 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 20:03:15,584 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 20:03:15,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 20:03:15,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 20:03:15,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 20:03:15,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 20:03:15,589 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 20:03:15,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 20:03:15,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 20:03:15,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 20:03:15,591 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 20:03:15,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 20:03:15,592 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 20:03:15,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 20:03:15,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 20:03:15,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 20:03:15,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 20:03:15,597 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 20:03:15,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 20:03:15,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 20:03:15,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 20:03:15,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 20:03:15,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 20:03:15,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 20:03:15,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 20:03:15,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 20:03:15,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 20:03:15,603 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 20:03:15,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 20:03:15,604 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 20:03:15,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 20:03:15,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d24b296895bb1aad8d34c2d7efdb39aad00aa64487bccb479278d36c5a9a207 [2024-11-16 20:03:15,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 20:03:15,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 20:03:15,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 20:03:15,911 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 20:03:15,912 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 20:03:15,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i [2024-11-16 20:03:17,472 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 20:03:18,042 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 20:03:18,043 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_ring_buffer_acquire_harness.i [2024-11-16 20:03:18,084 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6decf6cd/9106439923e14fb598c9daa2fe061257/FLAG28bac7319 [2024-11-16 20:03:18,571 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6decf6cd/9106439923e14fb598c9daa2fe061257 [2024-11-16 20:03:18,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 20:03:18,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 20:03:18,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 20:03:18,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 20:03:18,585 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 20:03:18,586 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:03:18" (1/1) ... [2024-11-16 20:03:18,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b1542b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:18, skipping insertion in model container [2024-11-16 20:03:18,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:03:18" (1/1) ... [2024-11-16 20:03:18,747 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 20:03:19,099 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_ring_buffer_acquire_harness.i[4497,4510] [2024-11-16 20:03:19,108 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_ring_buffer_acquire_harness.i[4557,4570] [2024-11-16 20:03:20,412 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:20,414 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:20,416 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:20,417 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:20,418 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:20,432 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:20,433 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:20,435 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:20,435 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,067 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,067 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 20:03:21,292 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 20:03:21,308 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_ring_buffer_acquire_harness.i[4497,4510] [2024-11-16 20:03:21,313 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_ring_buffer_acquire_harness.i[4557,4570] [2024-11-16 20:03:21,344 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,345 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,345 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,346 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,346 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,356 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,357 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,358 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,358 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2024-11-16 20:03:21,485 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,486 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:03:21,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8989-9000] [2024-11-16 20:03:21,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 20:03:21,856 INFO L204 MainTranslator]: Completed translation [2024-11-16 20:03:21,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21 WrapperNode [2024-11-16 20:03:21,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 20:03:21,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 20:03:21,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 20:03:21,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 20:03:21,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21" (1/1) ... [2024-11-16 20:03:22,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21" (1/1) ... [2024-11-16 20:03:22,109 INFO L138 Inliner]: procedures = 684, calls = 2943, calls flagged for inlining = 61, calls inlined = 12, statements flattened = 1207 [2024-11-16 20:03:22,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 20:03:22,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 20:03:22,110 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 20:03:22,110 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 20:03:22,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21" (1/1) ... [2024-11-16 20:03:22,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21" (1/1) ... [2024-11-16 20:03:22,132 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21" (1/1) ... [2024-11-16 20:03:22,249 INFO L175 MemorySlicer]: Split 617 memory accesses to 5 slices as follows [257, 2, 47, 243, 68]. 42 percent of accesses are in the largest equivalence class. The 27 initializations are split as follows [0, 2, 4, 11, 10]. The 515 writes are split as follows [257, 0, 22, 232, 4]. [2024-11-16 20:03:22,252 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21" (1/1) ... [2024-11-16 20:03:22,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21" (1/1) ... [2024-11-16 20:03:22,300 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21" (1/1) ... [2024-11-16 20:03:22,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21" (1/1) ... [2024-11-16 20:03:22,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21" (1/1) ... [2024-11-16 20:03:22,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21" (1/1) ... [2024-11-16 20:03:22,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 20:03:22,337 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 20:03:22,337 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 20:03:22,337 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 20:03:22,338 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21" (1/1) ... [2024-11-16 20:03:22,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 20:03:22,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 20:03:22,379 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 20:03:22,381 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 20:03:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-16 20:03:22,435 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-16 20:03:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 20:03:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 20:03:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 20:03:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr [2024-11-16 20:03:22,436 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr [2024-11-16 20:03:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 20:03:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 20:03:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 20:03:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 20:03:22,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 20:03:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 20:03:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 20:03:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 20:03:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 20:03:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 20:03:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-16 20:03:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-16 20:03:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 20:03:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 20:03:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 20:03:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 20:03:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 20:03:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 20:03:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 20:03:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 20:03:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 20:03:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_priv_xlate_order [2024-11-16 20:03:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_priv_xlate_order [2024-11-16 20:03:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 20:03:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 20:03:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 20:03:22,439 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 20:03:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-16 20:03:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-16 20:03:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 20:03:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 20:03:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 20:03:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 20:03:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 20:03:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr [2024-11-16 20:03:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr [2024-11-16 20:03:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 20:03:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 20:03:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_from_empty_array [2024-11-16 20:03:22,440 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_from_empty_array [2024-11-16 20:03:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 20:03:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 20:03:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 20:03:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 20:03:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 20:03:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 20:03:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 20:03:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 20:03:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 20:03:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 20:03:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 20:03:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_check_atomic_ptr [2024-11-16 20:03:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_check_atomic_ptr [2024-11-16 20:03:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure is_front_valid_state [2024-11-16 20:03:22,441 INFO L138 BoogieDeclarations]: Found implementation of procedure is_front_valid_state [2024-11-16 20:03:22,441 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-16 20:03:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-16 20:03:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure is_ends_valid_state [2024-11-16 20:03:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ends_valid_state [2024-11-16 20:03:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure s_buf_belongs_to_pool [2024-11-16 20:03:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure s_buf_belongs_to_pool [2024-11-16 20:03:22,442 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-16 20:03:22,442 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-16 20:03:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 20:03:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 20:03:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 20:03:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 20:03:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 20:03:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_store_ptr_explicit [2024-11-16 20:03:22,446 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_store_ptr_explicit [2024-11-16 20:03:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ring_buffer_is_valid [2024-11-16 20:03:22,446 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ring_buffer_is_valid [2024-11-16 20:03:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure is_middle_valid_state [2024-11-16 20:03:22,446 INFO L138 BoogieDeclarations]: Found implementation of procedure is_middle_valid_state [2024-11-16 20:03:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure aws_atomic_load_ptr_explicit [2024-11-16 20:03:22,446 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_atomic_load_ptr_explicit [2024-11-16 20:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 20:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 20:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 20:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 20:03:22,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 20:03:22,808 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 20:03:22,811 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 20:03:22,851 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-16 20:03:22,911 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8801: havoc #t~mem1324.base, #t~mem1324.offset;havoc #t~mem1325.base, #t~mem1325.offset;havoc #t~short1326;havoc #t~mem1327.base, #t~mem1327.offset;havoc #t~short1328;havoc #t~mem1329.base, #t~mem1329.offset;havoc #t~mem1330.base, #t~mem1330.offset;havoc #t~short1331;havoc #t~mem1332.base, #t~mem1332.offset;havoc #t~mem1333;havoc #t~mem1334.base, #t~mem1334.offset;havoc #t~short1335; [2024-11-16 20:03:22,913 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2024-11-16 20:03:22,915 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-16 20:03:22,975 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7377: 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 20:03:23,017 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5793: havoc #t~ret422;havoc #t~mem421.base, #t~mem421.offset; [2024-11-16 20:03:23,026 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 20:03:23,043 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6044: havoc #t~mem452.base, #t~mem452.offset;havoc #t~mem453.base, #t~mem453.offset;havoc #t~short454; [2024-11-16 20:03:23,060 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L9214: havoc #t~mem1357.base, #t~mem1357.offset; [2024-11-16 20:03:23,087 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5624: havoc #t~ret408.base, #t~ret408.offset; [2024-11-16 20:03:23,171 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6077: havoc #t~mem464.base, #t~mem464.offset;havoc #t~mem465.base, #t~mem465.offset;havoc #t~mem466.base, #t~mem466.offset;havoc #t~short467;havoc #t~short468;havoc #t~mem469.base, #t~mem469.offset;havoc #t~short470; [2024-11-16 20:03:23,203 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8231: havoc #t~mem1063;havoc #t~mem1064.base, #t~mem1064.offset;havoc #t~mem1065;havoc #t~mem1066.base, #t~mem1066.offset;call ULTIMATE.dealloc(~#buf~2.base, ~#buf~2.offset);havoc ~#buf~2.base, ~#buf~2.offset; [2024-11-16 20:03:23,217 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L9225: havoc #t~mem1360.base, #t~mem1360.offset; [2024-11-16 20:03:31,044 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8644: havoc aws_ring_buffer_acquire_#t~ret1238#1; [2024-11-16 20:03:31,044 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8630-2: havoc aws_ring_buffer_acquire_#t~ret1229#1; [2024-11-16 20:03:31,044 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8638: havoc aws_ring_buffer_acquire_~ring_space~0#1; [2024-11-16 20:03:31,044 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8688: havoc aws_ring_buffer_acquire_#t~ret1268#1; [2024-11-16 20:03:31,248 INFO L? ?]: Removed 224 outVars from TransFormulas that were not future-live. [2024-11-16 20:03:31,249 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 20:03:31,290 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 20:03:31,292 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 20:03:31,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:03:31 BoogieIcfgContainer [2024-11-16 20:03:31,293 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 20:03:31,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 20:03:31,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 20:03:31,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 20:03:31,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:03:18" (1/3) ... [2024-11-16 20:03:31,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697f61a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:03:31, skipping insertion in model container [2024-11-16 20:03:31,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21" (2/3) ... [2024-11-16 20:03:31,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697f61a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:03:31, skipping insertion in model container [2024-11-16 20:03:31,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:03:31" (3/3) ... [2024-11-16 20:03:31,302 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_ring_buffer_acquire_harness.i [2024-11-16 20:03:31,321 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 20:03:31,322 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-16 20:03:31,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 20:03:31,422 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;@79d7adbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 20:03:31,422 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-16 20:03:31,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 417 states, 245 states have (on average 1.2163265306122448) internal successors, (298), 250 states have internal predecessors, (298), 146 states have call successors, (146), 21 states have call predecessors, (146), 21 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2024-11-16 20:03:31,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-16 20:03:31,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:03:31,440 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2024-11-16 20:03:31,440 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting aws_atomic_store_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [aws_atomic_priv_xlate_orderErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION, aws_atomic_load_ptr_explicitErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 1 more)] === [2024-11-16 20:03:31,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:03:31,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1035067229, now seen corresponding path program 1 times [2024-11-16 20:03:31,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:03:31,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002221539] [2024-11-16 20:03:31,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:03:31,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:04:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:04:47,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 20:04:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:04:47,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:04:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:04:47,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 20:04:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:04:47,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 20:04:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:04:47,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 20:04:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:04:47,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 20:04:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:04:47,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:04:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:04:47,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 20:04:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:04:47,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 20:04:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:04:47,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 20:04:47,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:04:47,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 20:04:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:04:47,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 20:04:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:04:47,394 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-16 20:04:47,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:04:47,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002221539] [2024-11-16 20:04:47,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002221539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:04:47,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 20:04:47,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 20:04:47,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779168843] [2024-11-16 20:04:47,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:04:47,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 20:04:47,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:04:47,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 20:04:47,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 20:04:47,430 INFO L87 Difference]: Start difference. First operand has 417 states, 245 states have (on average 1.2163265306122448) internal successors, (298), 250 states have internal predecessors, (298), 146 states have call successors, (146), 21 states have call predecessors, (146), 21 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) 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, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 20:04:51,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []