./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_swap_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 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:36:34,655 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:36:34,716 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:36:34,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:36:34,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:36:34,741 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:36:34,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:36:34,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:36:34,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:36:34,743 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:36:34,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:36:34,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:36:34,744 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:36:34,744 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:36:34,744 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:36:34,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:36:34,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:36:34,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:36:34,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:36:34,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:36:34,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:36:34,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:36:34,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:36:34,745 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:36:34,745 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:36:34,745 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:36:34,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:36:34,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:36:34,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:36:34,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:36:34,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:36:34,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:36:34,746 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:36:34,747 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:36:34,747 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:36:34,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:36:34,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:36:34,747 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:36:34,747 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:36:34,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:36:34,747 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2025-03-04 02:36:34,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:36:34,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:36:34,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:36:34,973 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:36:34,973 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:36:34,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2025-03-04 02:36:36,091 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4033047fd/f52a076bb2cb40c08a3f5b8f89be3b34/FLAG4581eb88e [2025-03-04 02:36:36,568 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:36:36,569 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2025-03-04 02:36:36,592 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4033047fd/f52a076bb2cb40c08a3f5b8f89be3b34/FLAG4581eb88e [2025-03-04 02:36:36,679 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4033047fd/f52a076bb2cb40c08a3f5b8f89be3b34 [2025-03-04 02:36:36,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:36:36,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:36:36,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:36:36,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:36:36,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:36:36,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:36:36" (1/1) ... [2025-03-04 02:36:36,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca6ab6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:36, skipping insertion in model container [2025-03-04 02:36:36,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:36:36" (1/1) ... [2025-03-04 02:36:36,748 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:36:36,917 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_swap_harness.i[4493,4506] [2025-03-04 02:36:36,923 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_swap_harness.i[4553,4566] [2025-03-04 02:36:37,435 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,435 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,435 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,436 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,436 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,454 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,454 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,455 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,456 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,457 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,458 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,458 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,458 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,799 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,799 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,807 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,814 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:36:37,891 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:36:37,905 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_swap_harness.i[4493,4506] [2025-03-04 02:36:37,905 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_swap_harness.i[4553,4566] [2025-03-04 02:36:37,949 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,950 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,950 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,950 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,951 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,959 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,960 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,960 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,961 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,962 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,962 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,963 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:37,963 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:38,046 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:38,047 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:38,047 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:38,050 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:38,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2025-03-04 02:36:38,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:36:38,218 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:36:38,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38 WrapperNode [2025-03-04 02:36:38,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:36:38,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:36:38,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:36:38,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:36:38,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38" (1/1) ... [2025-03-04 02:36:38,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38" (1/1) ... [2025-03-04 02:36:38,312 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 651 [2025-03-04 02:36:38,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:36:38,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:36:38,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:36:38,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:36:38,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38" (1/1) ... [2025-03-04 02:36:38,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38" (1/1) ... [2025-03-04 02:36:38,331 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38" (1/1) ... [2025-03-04 02:36:38,397 INFO L175 MemorySlicer]: Split 302 memory accesses to 7 slices as follows [238, 2, 3, 9, 5, 39, 6]. 79 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [6, 2, 1, 5, 2, 5, 5]. The 238 writes are split as follows [232, 0, 1, 0, 1, 3, 1]. [2025-03-04 02:36:38,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38" (1/1) ... [2025-03-04 02:36:38,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38" (1/1) ... [2025-03-04 02:36:38,430 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38" (1/1) ... [2025-03-04 02:36:38,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38" (1/1) ... [2025-03-04 02:36:38,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38" (1/1) ... [2025-03-04 02:36:38,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38" (1/1) ... [2025-03-04 02:36:38,463 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:36:38,465 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:36:38,465 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:36:38,465 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:36:38,466 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38" (1/1) ... [2025-03-04 02:36:38,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:36:38,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:36:38,496 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) [2025-03-04 02:36:38,504 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 [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-04 02:36:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-04 02:36:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:36:38,522 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:36:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:36:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:36:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-04 02:36:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:36:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:36:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:36:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-04 02:36:38,523 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-04 02:36:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:36:38,524 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-04 02:36:38,524 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2025-03-04 02:36:38,524 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:36:38,524 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:36:38,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:36:38,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:36:38,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:36:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:36:38,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-04 02:36:38,782 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:36:38,785 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:36:38,821 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-04 02:36:38,855 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-04 02:36:38,886 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1; [2025-03-04 02:36:38,976 INFO L1325 $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; [2025-03-04 02:36:38,982 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:36:39,023 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3527: havoc #t~ret286; [2025-03-04 02:36:39,034 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7396: havoc #t~ret682.base, #t~ret682.offset; [2025-03-04 02:36:44,291 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2025-03-04 02:36:44,291 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:36:44,299 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:36:44,299 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:36:44,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:36:44 BoogieIcfgContainer [2025-03-04 02:36:44,300 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:36:44,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:36:44,302 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:36:44,305 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:36:44,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:36:36" (1/3) ... [2025-03-04 02:36:44,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336d3f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:36:44, skipping insertion in model container [2025-03-04 02:36:44,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:38" (2/3) ... [2025-03-04 02:36:44,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336d3f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:36:44, skipping insertion in model container [2025-03-04 02:36:44,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:36:44" (3/3) ... [2025-03-04 02:36:44,307 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2025-03-04 02:36:44,319 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:36:44,320 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_swap_harness.i that has 16 procedures, 178 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-04 02:36:44,369 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:36:44,378 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;@1b04e8cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:36:44,379 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:36:44,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 100 states have (on average 1.16) internal successors, (116), 101 states have internal predecessors, (116), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2025-03-04 02:36:44,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-04 02:36:44,393 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:36:44,393 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:36:44,393 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:36:44,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:36:44,398 INFO L85 PathProgramCache]: Analyzing trace with hash 206988999, now seen corresponding path program 1 times [2025-03-04 02:36:44,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:36:44,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59388145] [2025-03-04 02:36:44,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:36:44,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:36:48,442 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-04 02:36:48,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-04 02:36:48,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:36:48,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:36:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-04 02:36:49,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:36:49,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59388145] [2025-03-04 02:36:49,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59388145] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:36:49,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524943885] [2025-03-04 02:36:49,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:36:49,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:36:49,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:36:49,839 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) [2025-03-04 02:36:49,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 02:36:53,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-04 02:36:54,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-04 02:36:54,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:36:54,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:36:54,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 4018 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 02:36:54,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:36:54,975 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-04 02:36:54,975 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:36:54,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524943885] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:36:54,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:36:54,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-04 02:36:54,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829776156] [2025-03-04 02:36:54,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:36:54,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:36:54,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:36:54,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:36:55,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 02:36:55,002 INFO L87 Difference]: Start difference. First operand has 178 states, 100 states have (on average 1.16) internal successors, (116), 101 states have internal predecessors, (116), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-04 02:36:57,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:36:57,494 INFO L93 Difference]: Finished difference Result 351 states and 522 transitions. [2025-03-04 02:36:57,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 02:36:57,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2025-03-04 02:36:57,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:36:57,504 INFO L225 Difference]: With dead ends: 351 [2025-03-04 02:36:57,505 INFO L226 Difference]: Without dead ends: 175 [2025-03-04 02:36:57,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:36:57,510 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 239 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-04 02:36:57,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 671 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-04 02:36:57,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-04 02:36:57,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-03-04 02:36:57,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 97 states have (on average 1.1443298969072164) internal successors, (111), 99 states have internal predecessors, (111), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2025-03-04 02:36:57,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 240 transitions. [2025-03-04 02:36:57,551 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 240 transitions. Word has length 69 [2025-03-04 02:36:57,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:36:57,551 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 240 transitions. [2025-03-04 02:36:57,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-04 02:36:57,551 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 240 transitions. [2025-03-04 02:36:57,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-04 02:36:57,556 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:36:57,556 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:36:57,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 02:36:57,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 02:36:57,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:36:57,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:36:57,758 INFO L85 PathProgramCache]: Analyzing trace with hash -2095157621, now seen corresponding path program 1 times [2025-03-04 02:36:57,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:36:57,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275371279] [2025-03-04 02:36:57,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:36:57,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:37:01,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-04 02:37:01,541 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-04 02:37:01,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:37:01,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:37:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-04 02:37:02,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:37:02,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275371279] [2025-03-04 02:37:02,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275371279] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:37:02,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053865594] [2025-03-04 02:37:02,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:02,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:37:02,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:37:02,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:37:02,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 02:37:07,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-04 02:37:07,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-04 02:37:07,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:37:07,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:37:07,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 4145 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 02:37:07,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:37:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-04 02:37:08,851 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:37:08,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053865594] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:37:08,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:37:08,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-03-04 02:37:08,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339454159] [2025-03-04 02:37:08,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:37:08,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:37:08,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:37:08,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:37:08,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-04 02:37:08,854 INFO L87 Difference]: Start difference. First operand 175 states and 240 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-03-04 02:37:12,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:37:12,919 INFO L93 Difference]: Finished difference Result 322 states and 451 transitions. [2025-03-04 02:37:12,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 02:37:12,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2025-03-04 02:37:12,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:37:12,922 INFO L225 Difference]: With dead ends: 322 [2025-03-04 02:37:12,922 INFO L226 Difference]: Without dead ends: 187 [2025-03-04 02:37:12,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-03-04 02:37:12,923 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 254 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-03-04 02:37:12,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 983 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-03-04 02:37:12,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2025-03-04 02:37:12,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2025-03-04 02:37:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 103 states have (on average 1.145631067961165) internal successors, (118), 105 states have internal predecessors, (118), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2025-03-04 02:37:12,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 257 transitions. [2025-03-04 02:37:12,945 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 257 transitions. Word has length 84 [2025-03-04 02:37:12,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:37:12,946 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 257 transitions. [2025-03-04 02:37:12,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-03-04 02:37:12,947 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 257 transitions. [2025-03-04 02:37:12,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-03-04 02:37:12,949 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:37:12,949 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:37:12,965 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 02:37:13,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-04 02:37:13,150 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:37:13,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:37:13,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1846006283, now seen corresponding path program 1 times [2025-03-04 02:37:13,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:37:13,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86645192] [2025-03-04 02:37:13,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:13,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:37:16,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-03-04 02:37:18,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-03-04 02:37:18,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:37:18,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:37:25,066 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2025-03-04 02:37:25,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:37:25,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86645192] [2025-03-04 02:37:25,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86645192] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:37:25,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383979659] [2025-03-04 02:37:25,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:25,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:37:25,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:37:25,069 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:37:25,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 02:37:28,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes.