./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 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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-?-48c9605-m [2025-02-08 01:30:20,947 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:30:21,007 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:30:21,012 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:30:21,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:30:21,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:30:21,044 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:30:21,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:30:21,045 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:30:21,046 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:30:21,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:30:21,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:30:21,047 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:30:21,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:30:21,047 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:30:21,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:30:21,048 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:30:21,048 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:30:21,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:30:21,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:30:21,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:30:21,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:30:21,048 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:30:21,049 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:30:21,049 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:30:21,049 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:30:21,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:30:21,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:30:21,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:30:21,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:30:21,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:30:21,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:30:21,050 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:30:21,050 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:30:21,050 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:30:21,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:30:21,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:30:21,051 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:30:21,051 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:30:21,051 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:30:21,051 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-jdk21/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 [2025-02-08 01:30:21,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:30:21,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:30:21,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:30:21,353 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:30:21,353 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:30:21,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2025-02-08 01:30:22,653 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a7772f01/7fa21df29c8c480182b52d82435fc0f2/FLAGdd109942f [2025-02-08 01:30:23,252 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:30:23,253 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2025-02-08 01:30:23,291 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a7772f01/7fa21df29c8c480182b52d82435fc0f2/FLAGdd109942f [2025-02-08 01:30:23,312 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a7772f01/7fa21df29c8c480182b52d82435fc0f2 [2025-02-08 01:30:23,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:30:23,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:30:23,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:30:23,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:30:23,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:30:23,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:30:23" (1/1) ... [2025-02-08 01:30:23,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@709691d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:23, skipping insertion in model container [2025-02-08 01:30:23,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:30:23" (1/1) ... [2025-02-08 01:30:23,401 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:30:23,657 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2025-02-08 01:30:23,665 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2025-02-08 01:30:24,462 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,463 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,463 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,464 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,465 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,475 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,476 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,477 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,477 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,479 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,480 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,480 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,480 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,891 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,891 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,900 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,913 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:24,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:30:25,004 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:30:25,015 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2025-02-08 01:30:25,016 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2025-02-08 01:30:25,095 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,096 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,096 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,097 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,097 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,102 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,104 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,105 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,106 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,107 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,107 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,108 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,108 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,197 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,197 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,198 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,203 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:25,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2025-02-08 01:30:25,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:30:25,455 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:30:25,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25 WrapperNode [2025-02-08 01:30:25,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:30:25,457 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:30:25,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:30:25,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:30:25,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25" (1/1) ... [2025-02-08 01:30:25,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25" (1/1) ... [2025-02-08 01:30:25,649 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 651 [2025-02-08 01:30:25,652 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:30:25,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:30:25,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:30:25,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:30:25,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25" (1/1) ... [2025-02-08 01:30:25,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25" (1/1) ... [2025-02-08 01:30:25,670 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25" (1/1) ... [2025-02-08 01:30:25,753 INFO L175 MemorySlicer]: Split 302 memory accesses to 7 slices as follows [238, 2, 6, 39, 9, 5, 3]. 79 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [6, 2, 5, 5, 5, 2, 1]. The 238 writes are split as follows [232, 0, 1, 3, 0, 1, 1]. [2025-02-08 01:30:25,755 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25" (1/1) ... [2025-02-08 01:30:25,755 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25" (1/1) ... [2025-02-08 01:30:25,791 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25" (1/1) ... [2025-02-08 01:30:25,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25" (1/1) ... [2025-02-08 01:30:25,800 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25" (1/1) ... [2025-02-08 01:30:25,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25" (1/1) ... [2025-02-08 01:30:25,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:30:25,819 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:30:25,819 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:30:25,819 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:30:25,820 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25" (1/1) ... [2025-02-08 01:30:25,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:30:25,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:30:25,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:30:25,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:30:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:30:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-08 01:30:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-08 01:30:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:30:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:30:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:30:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:30:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:30:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:30:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:30:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:30:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:30:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:30:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-08 01:30:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:30:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:30:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:30:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:30:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:30:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:30:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-08 01:30:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:30:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:30:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:30:25,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:30:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:30:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-02-08 01:30:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:30:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:30:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:30:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-08 01:30:25,899 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-08 01:30:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:30:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-02-08 01:30:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2025-02-08 01:30:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:30:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:30:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:30:25,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:30:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:30:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:30:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:30:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:30:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:30:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:30:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-08 01:30:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:30:25,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:30:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:30:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:30:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:30:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:30:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:30:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:30:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-08 01:30:26,184 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:30:26,187 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:30:26,246 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-08 01:30:26,280 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-08 01:30:26,320 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1;#t~ret681#1 := nondet_uint8_t_#res#1;havoc nondet_uint8_t_#t~nondet10#1;assume { :end_inline_nondet_uint8_t } true;call write~int#2(#t~ret681#1, ~dst#1.base, ~dst#1.offset + (if ~index~0#1 % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then ~index~0#1 % 18446744073709551616 % 18446744073709551616 else ~index~0#1 % 18446744073709551616 % 18446744073709551616 - 18446744073709551616), 1);havoc ~index~0#1;havoc #t~ret681#1; [2025-02-08 01:30:26,426 INFO L1324 $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; [2025-02-08 01:30:26,433 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:30:26,491 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3527: havoc #t~ret286; [2025-02-08 01:30:26,504 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7396: havoc #t~ret682.base, #t~ret682.offset; [2025-02-08 01:30:32,063 INFO L? ?]: Removed 101 outVars from TransFormulas that were not future-live. [2025-02-08 01:30:32,064 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:30:32,079 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:30:32,079 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:30:32,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:30:32 BoogieIcfgContainer [2025-02-08 01:30:32,080 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:30:32,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:30:32,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:30:32,088 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:30:32,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:30:23" (1/3) ... [2025-02-08 01:30:32,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd56f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:30:32, skipping insertion in model container [2025-02-08 01:30:32,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:25" (2/3) ... [2025-02-08 01:30:32,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd56f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:30:32, skipping insertion in model container [2025-02-08 01:30:32,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:30:32" (3/3) ... [2025-02-08 01:30:32,092 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2025-02-08 01:30:32,106 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:30:32,107 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_swap_harness.i that has 16 procedures, 173 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-08 01:30:32,171 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:30:32,225 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;@3f1679b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:30:32,225 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:30:32,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 92 states have (on average 1.173913043478261) internal successors, (108), 96 states have internal predecessors, (108), 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) [2025-02-08 01:30:32,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-02-08 01:30:32,239 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:30:32,239 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] [2025-02-08 01:30:32,240 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:30:32,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:30:32,246 INFO L85 PathProgramCache]: Analyzing trace with hash -309932848, now seen corresponding path program 1 times [2025-02-08 01:30:32,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:30:32,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781969596] [2025-02-08 01:30:32,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:32,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:30:37,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-02-08 01:30:37,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-02-08 01:30:37,758 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:30:37,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:38,300 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-02-08 01:30:38,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:30:38,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781969596] [2025-02-08 01:30:38,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781969596] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:30:38,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513901233] [2025-02-08 01:30:38,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:38,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:30:38,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:30:38,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:30:38,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 01:30:43,523 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-02-08 01:30:44,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-02-08 01:30:44,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:30:44,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:44,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 4018 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:30:44,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:30:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-02-08 01:30:44,147 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:30:44,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513901233] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:30:44,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:30:44,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:30:44,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731102065] [2025-02-08 01:30:44,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:30:44,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:30:44,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:30:44,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:30:44,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:30:44,175 INFO L87 Difference]: Start difference. First operand has 173 states, 92 states have (on average 1.173913043478261) internal successors, (108), 96 states have internal predecessors, (108), 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 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-08 01:30:44,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:30:44,224 INFO L93 Difference]: Finished difference Result 340 states and 496 transitions. [2025-02-08 01:30:44,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:30:44,226 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 68 [2025-02-08 01:30:44,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:30:44,232 INFO L225 Difference]: With dead ends: 340 [2025-02-08 01:30:44,232 INFO L226 Difference]: Without dead ends: 162 [2025-02-08 01:30:44,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:30:44,239 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 01:30:44,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:30:44,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2025-02-08 01:30:44,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2025-02-08 01:30:44,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 87 states have (on average 1.1379310344827587) internal successors, (99), 89 states have internal predecessors, (99), 59 states have call successors, (59), 15 states have call predecessors, (59), 15 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2025-02-08 01:30:44,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 215 transitions. [2025-02-08 01:30:44,291 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 215 transitions. Word has length 68 [2025-02-08 01:30:44,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:30:44,292 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 215 transitions. [2025-02-08 01:30:44,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-08 01:30:44,292 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 215 transitions. [2025-02-08 01:30:44,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-02-08 01:30:44,295 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:30:44,295 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] [2025-02-08 01:30:44,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:30:44,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 01:30:44,496 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:30:44,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:30:44,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1407442035, now seen corresponding path program 1 times [2025-02-08 01:30:44,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:30:44,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741528929] [2025-02-08 01:30:44,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:44,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:30:49,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-02-08 01:30:49,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-02-08 01:30:49,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:30:49,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:50,653 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-08 01:30:50,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:30:50,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741528929] [2025-02-08 01:30:50,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741528929] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:30:50,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383123786] [2025-02-08 01:30:50,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:50,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:30:50,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:30:50,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:30:50,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 01:30:55,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-02-08 01:30:56,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-02-08 01:30:56,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:30:56,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:56,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 4018 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 01:30:56,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:30:56,501 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-08 01:30:56,501 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:30:56,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383123786] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:30:56,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:30:56,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-02-08 01:30:56,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156738501] [2025-02-08 01:30:56,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:30:56,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:30:56,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:30:56,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:30:56,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:30:56,505 INFO L87 Difference]: Start difference. First operand 162 states and 215 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2025-02-08 01:30:57,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:30:57,375 INFO L93 Difference]: Finished difference Result 290 states and 397 transitions. [2025-02-08 01:30:57,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:30:57,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 68 [2025-02-08 01:30:57,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:30:57,380 INFO L225 Difference]: With dead ends: 290 [2025-02-08 01:30:57,380 INFO L226 Difference]: Without dead ends: 164 [2025-02-08 01:30:57,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:30:57,381 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 34 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-08 01:30:57,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 702 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-08 01:30:57,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2025-02-08 01:30:57,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2025-02-08 01:30:57,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 88 states have (on average 1.1363636363636365) internal successors, (100), 91 states have internal predecessors, (100), 59 states have call successors, (59), 15 states have call predecessors, (59), 16 states have return successors, (65), 57 states have call predecessors, (65), 57 states have call successors, (65) [2025-02-08 01:30:57,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 224 transitions. [2025-02-08 01:30:57,401 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 224 transitions. Word has length 68 [2025-02-08 01:30:57,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:30:57,402 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 224 transitions. [2025-02-08 01:30:57,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2025-02-08 01:30:57,402 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 224 transitions. [2025-02-08 01:30:57,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-02-08 01:30:57,404 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:30:57,404 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] [2025-02-08 01:30:57,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 01:30:57,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:30:57,605 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:30:57,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:30:57,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1420811111, now seen corresponding path program 1 times [2025-02-08 01:30:57,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:30:57,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899857004] [2025-02-08 01:30:57,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:57,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:31:01,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-08 01:31:01,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-08 01:31:01,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:31:01,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:31:03,440 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-08 01:31:03,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:31:03,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899857004] [2025-02-08 01:31:03,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899857004] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:31:03,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995147513] [2025-02-08 01:31:03,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:31:03,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:31:03,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:31:03,443 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:31:03,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 01:31:08,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-08 01:31:08,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-08 01:31:08,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:31:08,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:31:08,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 4145 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 01:31:08,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:31:09,544 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-02-08 01:31:09,544 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:31:09,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995147513] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:31:09,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:31:09,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-02-08 01:31:09,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830134770] [2025-02-08 01:31:09,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:31:09,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:31:09,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:31:09,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:31:09,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-02-08 01:31:09,546 INFO L87 Difference]: Start difference. First operand 164 states and 224 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 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) [2025-02-08 01:31:11,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:31:11,158 INFO L93 Difference]: Finished difference Result 301 states and 420 transitions. [2025-02-08 01:31:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:31:11,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 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 82 [2025-02-08 01:31:11,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:31:11,161 INFO L225 Difference]: With dead ends: 301 [2025-02-08 01:31:11,161 INFO L226 Difference]: Without dead ends: 176 [2025-02-08 01:31:11,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:31:11,164 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 44 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-08 01:31:11,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1071 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-08 01:31:11,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-02-08 01:31:11,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2025-02-08 01:31:11,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 94 states have (on average 1.1382978723404256) internal successors, (107), 97 states have internal predecessors, (107), 64 states have call successors, (64), 16 states have call predecessors, (64), 17 states have return successors, (70), 62 states have call predecessors, (70), 62 states have call successors, (70) [2025-02-08 01:31:11,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 241 transitions. [2025-02-08 01:31:11,186 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 241 transitions. Word has length 82 [2025-02-08 01:31:11,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:31:11,186 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 241 transitions. [2025-02-08 01:31:11,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 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) [2025-02-08 01:31:11,188 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 241 transitions. [2025-02-08 01:31:11,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-02-08 01:31:11,190 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:31:11,191 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, 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] [2025-02-08 01:31:11,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 01:31:11,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:31:11,392 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:31:11,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:31:11,392 INFO L85 PathProgramCache]: Analyzing trace with hash -668321625, now seen corresponding path program 1 times [2025-02-08 01:31:11,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:31:11,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774734966] [2025-02-08 01:31:11,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:31:11,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:31:15,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-02-08 01:31:17,427 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-02-08 01:31:17,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:31:17,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:31:24,635 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-02-08 01:31:24,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:31:24,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774734966] [2025-02-08 01:31:24,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774734966] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:31:24,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966285707] [2025-02-08 01:31:24,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:31:24,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:31:24,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:31:24,638 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:31:24,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 01:31:29,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes.