./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_buf_append_with_lookup_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 49bf9fd75d56d44e7e1e54aefea9fad1d2b78cb24b15e9eb5cce5de020ddf3d7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:46:44,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:46:44,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 10:46:44,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:46:44,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:46:44,345 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:46:44,346 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:46:44,346 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:46:44,347 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:46:44,350 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:46:44,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:46:44,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:46:44,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:46:44,354 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:46:44,354 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:46:44,355 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:46:44,355 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:46:44,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:46:44,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:46:44,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:46:44,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:46:44,356 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:46:44,357 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:46:44,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:46:44,361 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:46:44,361 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:46:44,362 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:46:44,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:46:44,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:46:44,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:46:44,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:46:44,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:46:44,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:46:44,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:46:44,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:46:44,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:46:44,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:46:44,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:46:44,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:46:44,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49bf9fd75d56d44e7e1e54aefea9fad1d2b78cb24b15e9eb5cce5de020ddf3d7 [2024-11-10 10:46:44,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:46:44,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:46:44,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:46:44,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:46:44,701 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:46:44,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i [2024-11-10 10:46:46,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:46:46,857 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:46:46,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_append_with_lookup_harness_negated.i [2024-11-10 10:46:46,900 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/593f943b0/5b7e48f887944dbca1c33420cf03e9a2/FLAG95845b47e [2024-11-10 10:46:46,913 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/593f943b0/5b7e48f887944dbca1c33420cf03e9a2 [2024-11-10 10:46:46,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:46:46,917 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:46:46,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:46:46,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:46:46,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:46:46,924 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:46:46" (1/1) ... [2024-11-10 10:46:46,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d3fa87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:46, skipping insertion in model container [2024-11-10 10:46:46,925 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:46:46" (1/1) ... [2024-11-10 10:46:47,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:46:47,442 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_buf_append_with_lookup_harness_negated.i[4505,4518] [2024-11-10 10:46:47,452 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_buf_append_with_lookup_harness_negated.i[4565,4578] [2024-11-10 10:46:48,503 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:48,504 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:48,504 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:48,505 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:48,506 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:48,534 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:48,535 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:48,540 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:48,542 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,169 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,173 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,278 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,279 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:46:49,472 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:46:49,494 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_buf_append_with_lookup_harness_negated.i[4505,4518] [2024-11-10 10:46:49,495 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_buf_append_with_lookup_harness_negated.i[4565,4578] [2024-11-10 10:46:49,542 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,543 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,543 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,544 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,545 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,599 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,600 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,606 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,611 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,758 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,758 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8265] [2024-11-10 10:46:49,814 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,814 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:46:49,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8751-8762] [2024-11-10 10:46:49,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:46:50,180 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:46:50,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50 WrapperNode [2024-11-10 10:46:50,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:46:50,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:46:50,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:46:50,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:46:50,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50" (1/1) ... [2024-11-10 10:46:50,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50" (1/1) ... [2024-11-10 10:46:50,473 INFO L138 Inliner]: procedures = 680, calls = 2646, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 971 [2024-11-10 10:46:50,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:46:50,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:46:50,477 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:46:50,477 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:46:50,488 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50" (1/1) ... [2024-11-10 10:46:50,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50" (1/1) ... [2024-11-10 10:46:50,497 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50" (1/1) ... [2024-11-10 10:46:50,583 INFO L175 MemorySlicer]: Split 572 memory accesses to 9 slices as follows [2, 257, 238, 20, 4, 1, 9, 32, 9]. 45 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 0, 6, 2, 2, 0, 5, 4, 4]. The 494 writes are split as follows [0, 257, 232, 1, 0, 0, 1, 3, 0]. [2024-11-10 10:46:50,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50" (1/1) ... [2024-11-10 10:46:50,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50" (1/1) ... [2024-11-10 10:46:50,647 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50" (1/1) ... [2024-11-10 10:46:50,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50" (1/1) ... [2024-11-10 10:46:50,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50" (1/1) ... [2024-11-10 10:46:50,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50" (1/1) ... [2024-11-10 10:46:50,680 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:46:50,686 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:46:50,686 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:46:50,686 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:46:50,687 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50" (1/1) ... [2024-11-10 10:46:50,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:46:50,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:46:50,727 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) [2024-11-10 10:46:50,733 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 [2024-11-10 10:46:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-10 10:46:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-10 10:46:50,775 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2024-11-10 10:46:50,776 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2024-11-10 10:46:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:46:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 10:46:50,776 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 10:46:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:46:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:46:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 10:46:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 10:46:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 10:46:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-10 10:46:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-10 10:46:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-10 10:46:50,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-10 10:46:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:46:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:46:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:46:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:46:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:46:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 10:46:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-10 10:46:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-10 10:46:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-10 10:46:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-10 10:46:50,777 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-10 10:46:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 10:46:50,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 10:46:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:46:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:46:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:46:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:46:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:46:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:46:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:46:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 10:46:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-10 10:46:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-10 10:46:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-10 10:46:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:46:50,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:46:50,778 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 10:46:50,778 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 10:46:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-10 10:46:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-10 10:46:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-10 10:46:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-10 10:46:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-10 10:46:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-10 10:46:50,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-10 10:46:50,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-10 10:46:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-10 10:46:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:46:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:46:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:46:50,781 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-10 10:46:50,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-10 10:46:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:46:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:46:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:46:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:46:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:46:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 10:46:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-10 10:46:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-10 10:46:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-10 10:46:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:46:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:46:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:46:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:46:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:46:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 10:46:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-10 10:46:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-10 10:46:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-10 10:46:50,785 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 10:46:50,786 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 10:46:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-10 10:46:50,786 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-10 10:46:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure assert_bytes_match [2024-11-10 10:46:50,786 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_bytes_match [2024-11-10 10:46:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-10 10:46:50,786 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-10 10:46:50,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:46:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:46:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:46:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:46:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:46:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 10:46:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-10 10:46:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-10 10:46:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-10 10:46:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:46:50,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:46:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:46:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:46:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:46:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 10:46:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-10 10:46:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-10 10:46:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-10 10:46:51,176 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:46:51,179 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:46:51,225 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-10 10:46:51,227 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-10 10:46:51,295 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7373: havoc #t~mem681;havoc #t~mem682;havoc #t~short683;havoc #t~mem684.base, #t~mem684.offset;havoc #t~short685;havoc #t~mem686;havoc #t~mem687;havoc #t~mem688;havoc #t~short689;havoc #t~mem690;havoc #t~mem691.base, #t~mem691.offset;havoc #t~short692;havoc #t~short693;havoc #t~short694;havoc #t~short695; [2024-11-10 10:46:51,318 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 10:46:51,353 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7383: havoc #t~mem696;havoc #t~mem697;havoc #t~mem698.base, #t~mem698.offset;havoc #t~short699;havoc #t~mem700;havoc #t~mem701.base, #t~mem701.offset;havoc #t~short702;havoc #t~short703;havoc #t~short704;havoc #t~short705; [2024-11-10 10:46:51,396 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2024-11-10 10:46:59,460 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2024-11-10 10:46:59,461 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7911: havoc aws_byte_buf_append_with_lookup_#t~ret895#1; [2024-11-10 10:46:59,461 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6657: havoc aws_byte_cursor_is_bounded_#t~mem509#1; [2024-11-10 10:46:59,521 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-10 10:46:59,522 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:46:59,538 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:46:59,538 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:46:59,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:46:59 BoogieIcfgContainer [2024-11-10 10:46:59,539 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:46:59,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:46:59,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:46:59,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:46:59,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:46:46" (1/3) ... [2024-11-10 10:46:59,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c4cdb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:46:59, skipping insertion in model container [2024-11-10 10:46:59,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:46:50" (2/3) ... [2024-11-10 10:46:59,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c4cdb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:46:59, skipping insertion in model container [2024-11-10 10:46:59,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:46:59" (3/3) ... [2024-11-10 10:46:59,554 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_append_with_lookup_harness_negated.i [2024-11-10 10:46:59,574 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:46:59,575 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:46:59,659 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:46:59,666 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;@72fc6ecc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:46:59,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:46:59,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 107 states have (on average 1.2242990654205608) internal successors, (131), 108 states have internal predecessors, (131), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-10 10:46:59,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-10 10:46:59,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:46:59,688 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:46:59,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:46:59,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:46:59,697 INFO L85 PathProgramCache]: Analyzing trace with hash -933102347, now seen corresponding path program 1 times [2024-11-10 10:46:59,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:46:59,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749640749] [2024-11-10 10:46:59,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:46:59,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:48:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-10 10:48:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 10:48:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 10:48:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:48:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 10:48:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 10:48:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 10:48:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 10:48:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-10 10:48:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-10 10:48:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 10:48:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 10:48:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 10:48:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 10:48:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 10:48:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 10:48:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:16,922 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-10 10:48:16,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:48:16,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749640749] [2024-11-10 10:48:16,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749640749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:48:16,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:48:16,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:48:16,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188817339] [2024-11-10 10:48:16,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:48:16,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:48:16,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:48:16,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:48:16,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:48:16,963 INFO L87 Difference]: Start difference. First operand has 165 states, 107 states have (on average 1.2242990654205608) internal successors, (131), 108 states have internal predecessors, (131), 44 states have call successors, (44), 12 states have call predecessors, (44), 12 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-10 10:48:21,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []