./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_erase_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_array_list_erase_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 d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:39:15,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:39:15,334 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 19:39:15,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:39:15,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:39:15,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:39:15,377 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:39:15,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:39:15,378 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:39:15,378 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:39:15,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:39:15,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:39:15,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:39:15,379 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:39:15,380 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:39:15,380 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:39:15,380 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:39:15,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:39:15,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:39:15,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:39:15,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:39:15,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:39:15,386 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:39:15,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:39:15,386 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:39:15,386 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:39:15,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:39:15,387 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:39:15,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:39:15,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:39:15,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:39:15,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:39:15,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:39:15,388 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:39:15,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:39:15,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:39:15,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:39:15,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:39:15,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:39:15,390 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b [2024-11-16 19:39:15,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:39:15,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:39:15,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:39:15,660 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:39:15,661 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:39:15,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2024-11-16 19:39:17,050 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:39:17,445 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:39:17,445 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2024-11-16 19:39:17,484 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecf97994f/b101262ac76344d3a292ed64fbc32063/FLAGae456f01d [2024-11-16 19:39:17,506 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecf97994f/b101262ac76344d3a292ed64fbc32063 [2024-11-16 19:39:17,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:39:17,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:39:17,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:39:17,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:39:17,518 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:39:17,519 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:39:17" (1/1) ... [2024-11-16 19:39:17,519 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71767b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:17, skipping insertion in model container [2024-11-16 19:39:17,520 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:39:17" (1/1) ... [2024-11-16 19:39:17,612 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:39:17,911 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_array_list_erase_harness.i[4494,4507] [2024-11-16 19:39:17,917 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_array_list_erase_harness.i[4554,4567] [2024-11-16 19:39:18,557 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,560 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,560 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,561 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,563 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,571 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,572 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,574 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,575 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,578 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,578 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,581 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,581 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,973 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,973 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,981 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,982 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,988 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,988 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,993 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:18,999 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,066 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,067 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:39:19,102 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:39:19,116 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_array_list_erase_harness.i[4494,4507] [2024-11-16 19:39:19,118 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_array_list_erase_harness.i[4554,4567] [2024-11-16 19:39:19,159 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,160 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,160 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,160 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,161 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,165 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,165 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,166 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,166 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,167 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,167 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,168 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,168 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,219 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,220 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,221 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,221 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,222 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,222 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,223 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,225 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7825-7836] [2024-11-16 19:39:19,239 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,240 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:39:19,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:39:19,437 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:39:19,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19 WrapperNode [2024-11-16 19:39:19,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:39:19,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:39:19,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:39:19,439 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:39:19,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19" (1/1) ... [2024-11-16 19:39:19,503 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19" (1/1) ... [2024-11-16 19:39:19,577 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2024-11-16 19:39:19,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:39:19,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:39:19,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:39:19,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:39:19,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19" (1/1) ... [2024-11-16 19:39:19,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19" (1/1) ... [2024-11-16 19:39:19,605 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19" (1/1) ... [2024-11-16 19:39:19,684 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 73, 2, 6, 3, 9]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 10, 2, 0, 1, 5]. The 243 writes are split as follows [232, 6, 0, 2, 1, 2]. [2024-11-16 19:39:19,684 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19" (1/1) ... [2024-11-16 19:39:19,684 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19" (1/1) ... [2024-11-16 19:39:19,721 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19" (1/1) ... [2024-11-16 19:39:19,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19" (1/1) ... [2024-11-16 19:39:19,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19" (1/1) ... [2024-11-16 19:39:19,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19" (1/1) ... [2024-11-16 19:39:19,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:39:19,760 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:39:19,760 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:39:19,760 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:39:19,761 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19" (1/1) ... [2024-11-16 19:39:19,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:39:19,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:39:19,792 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 19:39:19,794 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 19:39:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2024-11-16 19:39:19,827 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2024-11-16 19:39:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:39:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-16 19:39:19,827 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-16 19:39:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-16 19:39:19,827 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-16 19:39:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 19:39:19,828 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 19:39:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 19:39:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 19:39:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 19:39:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 19:39:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 19:39:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 19:39:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:39:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:39:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:39:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:39:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:39:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:39:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-16 19:39:19,829 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-16 19:39:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 19:39:19,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 19:39:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:39:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:39:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2024-11-16 19:39:19,829 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2024-11-16 19:39:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:39:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:39:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:39:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:39:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:39:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 19:39:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:39:19,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:39:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 19:39:19,830 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 19:39:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-16 19:39:19,831 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-16 19:39:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-16 19:39:19,831 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-16 19:39:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-16 19:39:19,831 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-16 19:39:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 19:39:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 19:39:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 19:39:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 19:39:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 19:39:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 19:39:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-16 19:39:19,832 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-16 19:39:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 19:39:19,832 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 19:39:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2024-11-16 19:39:19,832 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2024-11-16 19:39:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:39:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:39:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:39:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:39:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:39:19,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:39:19,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 19:39:19,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-16 19:39:19,834 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-16 19:39:19,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:39:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2024-11-16 19:39:19,835 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2024-11-16 19:39:19,835 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-16 19:39:19,835 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-16 19:39:19,835 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-16 19:39:19,835 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-16 19:39:19,835 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-16 19:39:19,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-16 19:39:19,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:39:19,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:39:19,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:39:19,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:39:19,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:39:19,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:39:20,080 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:39:20,082 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:39:20,161 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2024-11-16 19:39:20,163 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc #t~nondet10; [2024-11-16 19:39:20,190 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2024-11-16 19:39:20,206 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2024-11-16 19:39:20,210 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7446: havoc #t~ret688.base, #t~ret688.offset; [2024-11-16 19:39:20,293 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2024-11-16 19:39:20,298 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 19:39:20,304 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7393: havoc #t~ret682.base, #t~ret682.offset; [2024-11-16 19:39:26,693 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3355: havoc aws_array_list_pop_front_#t~ret182#1; [2024-11-16 19:39:26,694 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3387: havoc aws_array_list_erase_#t~ret196#1; [2024-11-16 19:39:26,924 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3445: havoc #t~ret230; [2024-11-16 19:39:26,924 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3432: havoc ~last_item_offset~1; [2024-11-16 19:39:26,993 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-16 19:39:26,994 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:39:27,006 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:39:27,006 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:39:27,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:39:27 BoogieIcfgContainer [2024-11-16 19:39:27,007 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:39:27,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:39:27,009 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:39:27,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:39:27,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:39:17" (1/3) ... [2024-11-16 19:39:27,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efe6288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:39:27, skipping insertion in model container [2024-11-16 19:39:27,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:19" (2/3) ... [2024-11-16 19:39:27,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efe6288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:39:27, skipping insertion in model container [2024-11-16 19:39:27,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:39:27" (3/3) ... [2024-11-16 19:39:27,013 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness.i [2024-11-16 19:39:27,026 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:39:27,026 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:39:27,071 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:39:27,076 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;@6418747d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:39:27,077 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 19:39:27,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 255 states, 145 states have (on average 1.186206896551724) internal successors, (172), 146 states have internal predecessors, (172), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-16 19:39:27,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 19:39:27,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:39:27,089 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2024-11-16 19:39:27,089 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:39:27,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:39:27,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1982072228, now seen corresponding path program 1 times [2024-11-16 19:39:27,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:39:27,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181913313] [2024-11-16 19:39:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:39:27,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:39:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:32,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 19:39:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:32,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 19:39:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:32,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 19:39:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:32,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 19:39:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:32,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 19:39:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:32,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 19:39:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:33,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 19:39:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:33,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 19:39:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:33,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 19:39:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:33,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 19:39:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:33,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 19:39:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:33,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 19:39:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:33,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 19:39:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:33,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 19:39:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:33,076 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-16 19:39:33,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:39:33,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181913313] [2024-11-16 19:39:33,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181913313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:39:33,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:39:33,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:39:33,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695700176] [2024-11-16 19:39:33,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:39:33,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:39:33,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:39:33,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:39:33,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:39:33,106 INFO L87 Difference]: Start difference. First operand has 255 states, 145 states have (on average 1.186206896551724) internal successors, (172), 146 states have internal predecessors, (172), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 19:39:37,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 19:39:41,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 19:39:49,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 19:39:49,322 INFO L93 Difference]: Finished difference Result 546 states and 840 transitions. [2024-11-16 19:39:49,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:39:49,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2024-11-16 19:39:49,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 19:39:49,334 INFO L225 Difference]: With dead ends: 546 [2024-11-16 19:39:49,334 INFO L226 Difference]: Without dead ends: 295 [2024-11-16 19:39:49,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:39:49,345 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 159 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 250 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-11-16 19:39:49,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 389 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 371 Invalid, 2 Unknown, 0 Unchecked, 15.5s Time] [2024-11-16 19:39:49,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-16 19:39:49,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 249. [2024-11-16 19:39:49,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 140 states have (on average 1.1785714285714286) internal successors, (165), 141 states have internal predecessors, (165), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-16 19:39:49,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 340 transitions. [2024-11-16 19:39:49,440 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 340 transitions. Word has length 87 [2024-11-16 19:39:49,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 19:39:49,443 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 340 transitions. [2024-11-16 19:39:49,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 19:39:49,443 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 340 transitions. [2024-11-16 19:39:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 19:39:49,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:39:49,447 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2024-11-16 19:39:49,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:39:49,447 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:39:49,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:39:49,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1149359706, now seen corresponding path program 1 times [2024-11-16 19:39:49,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:39:49,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864984365] [2024-11-16 19:39:49,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:39:49,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:39:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:55,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 19:39:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:55,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 19:39:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:55,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 19:39:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:55,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 19:39:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:55,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 19:39:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:55,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 19:39:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:56,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 19:39:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:56,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 19:39:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:56,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 19:39:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:56,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 19:39:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:56,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 19:39:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:56,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 19:39:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:56,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 19:39:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:56,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 19:39:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:39:56,781 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-16 19:39:56,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:39:56,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864984365] [2024-11-16 19:39:56,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864984365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 19:39:56,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096894316] [2024-11-16 19:39:56,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:39:56,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:39:56,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:39:56,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 19:39:56,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 19:40:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:40:01,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-16 19:40:01,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 19:40:05,822 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= |c_#memory_$Pointer$#1.base| (store |c_old(#memory_$Pointer$#1.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#1.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#1.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= |c_#memory_$Pointer$#1.offset| (store |c_old(#memory_$Pointer$#1.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#1.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#1.offset| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))))) is different from true [2024-11-16 19:40:06,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 19:40:06,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 19:40:06,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 19:40:06,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 19:40:11,811 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 47 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 19:40:11,811 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 19:40:20,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096894316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 19:40:20,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-16 19:40:20,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13] total 18 [2024-11-16 19:40:20,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957775545] [2024-11-16 19:40:20,402 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-16 19:40:20,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 19:40:20,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:40:20,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 19:40:20,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=632, Unknown=1, NotChecked=50, Total=756 [2024-11-16 19:40:20,405 INFO L87 Difference]: Start difference. First operand 249 states and 340 transitions. Second operand has 18 states, 16 states have (on average 4.4375) internal successors, (71), 13 states have internal predecessors, (71), 7 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-16 19:40:24,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []