./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 c00e63dc 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-?-c00e63d-m [2025-02-06 04:53:23,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:53:23,859 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 04:53:23,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:53:23,873 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:53:23,891 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:53:23,892 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:53:23,892 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:53:23,892 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:53:23,892 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:53:23,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:53:23,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:53:23,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:53:23,893 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:53:23,893 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:53:23,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:53:23,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:53:23,894 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:53:23,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:53:23,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:53:23,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:53:23,894 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:53:23,894 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:53:23,895 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:53:23,895 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:53:23,895 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:53:23,895 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:53:23,895 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:53:23,895 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:53:23,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:53:23,896 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:53:23,896 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:53:23,896 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:53:23,896 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:53:23,896 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:53:23,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:53:23,896 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:53:23,896 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:53:23,897 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:53:23,897 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:53:23,897 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 [2025-02-06 04:53:24,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:53:24,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:53:24,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:53:24,178 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:53:24,178 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:53:24,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2025-02-06 04:53:25,469 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aa269ec16/6dff8348af474f4b947377961bc62959/FLAG4516a6a9a [2025-02-06 04:53:25,959 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:53:25,960 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2025-02-06 04:53:25,998 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aa269ec16/6dff8348af474f4b947377961bc62959/FLAG4516a6a9a [2025-02-06 04:53:26,013 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/aa269ec16/6dff8348af474f4b947377961bc62959 [2025-02-06 04:53:26,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:53:26,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:53:26,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:53:26,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:53:26,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:53:26,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:53:26" (1/1) ... [2025-02-06 04:53:26,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c453938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:26, skipping insertion in model container [2025-02-06 04:53:26,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:53:26" (1/1) ... [2025-02-06 04:53:26,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:53:26,312 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] [2025-02-06 04:53:26,320 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] [2025-02-06 04:53:26,963 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:26,964 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:26,965 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:26,965 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:26,966 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:26,976 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:26,977 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:26,978 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:26,979 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:26,980 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:26,981 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:26,981 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:26,982 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,441 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,441 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,451 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,457 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:53:27,586 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:53:27,607 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] [2025-02-06 04:53:27,608 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] [2025-02-06 04:53:27,685 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,686 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,687 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,687 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,689 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,699 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,703 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,705 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,705 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,706 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,709 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,710 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,710 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,841 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,846 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,847 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,856 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 04:53:27,865 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2025-02-06 04:53:27,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:53:28,111 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:53:28,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28 WrapperNode [2025-02-06 04:53:28,112 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:53:28,113 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:53:28,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:53:28,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:53:28,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28" (1/1) ... [2025-02-06 04:53:28,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28" (1/1) ... [2025-02-06 04:53:28,289 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 651 [2025-02-06 04:53:28,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:53:28,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:53:28,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:53:28,291 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:53:28,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28" (1/1) ... [2025-02-06 04:53:28,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28" (1/1) ... [2025-02-06 04:53:28,309 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28" (1/1) ... [2025-02-06 04:53:28,390 INFO L175 MemorySlicer]: Split 302 memory accesses to 7 slices as follows [238, 2, 6, 5, 9, 3, 39]. 79 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [6, 2, 5, 2, 5, 1, 5]. The 238 writes are split as follows [232, 0, 1, 1, 0, 1, 3]. [2025-02-06 04:53:28,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28" (1/1) ... [2025-02-06 04:53:28,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28" (1/1) ... [2025-02-06 04:53:28,435 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28" (1/1) ... [2025-02-06 04:53:28,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28" (1/1) ... [2025-02-06 04:53:28,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28" (1/1) ... [2025-02-06 04:53:28,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28" (1/1) ... [2025-02-06 04:53:28,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:53:28,480 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:53:28,481 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:53:28,481 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:53:28,482 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28" (1/1) ... [2025-02-06 04:53:28,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:53:28,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:53:28,524 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) [2025-02-06 04:53:28,530 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 [2025-02-06 04:53:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 04:53:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-06 04:53:28,555 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-06 04:53:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-06 04:53:28,555 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-06 04:53:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 04:53:28,555 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 04:53:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 04:53:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 04:53:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 04:53:28,556 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 04:53:28,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:53:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 04:53:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 04:53:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 04:53:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 04:53:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 04:53:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 04:53:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 04:53:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-02-06 04:53:28,558 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-02-06 04:53:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:53:28,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:53:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 04:53:28,559 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 04:53:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 04:53:28,559 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 04:53:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 04:53:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 04:53:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 04:53:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 04:53:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 04:53:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 04:53:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 04:53:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-06 04:53:28,559 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-06 04:53:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 04:53:28,559 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-02-06 04:53:28,560 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 04:53:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2025-02-06 04:53:28,564 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2025-02-06 04:53:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-06 04:53:28,564 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 04:53:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:53:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 04:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 04:53:28,927 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:53:28,930 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:53:28,979 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-06 04:53:29,019 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-06 04:53:29,058 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1; [2025-02-06 04:53:29,187 INFO L1309 $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; [2025-02-06 04:53:29,198 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 04:53:29,237 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3527: havoc #t~ret286; [2025-02-06 04:53:29,251 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7396: havoc #t~ret682.base, #t~ret682.offset; [2025-02-06 04:53:34,789 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2025-02-06 04:53:34,789 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:53:34,803 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:53:34,803 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:53:34,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:53:34 BoogieIcfgContainer [2025-02-06 04:53:34,804 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:53:34,808 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:53:34,808 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:53:34,813 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:53:34,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:53:26" (1/3) ... [2025-02-06 04:53:34,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cc20b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:53:34, skipping insertion in model container [2025-02-06 04:53:34,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:53:28" (2/3) ... [2025-02-06 04:53:34,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cc20b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:53:34, skipping insertion in model container [2025-02-06 04:53:34,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:53:34" (3/3) ... [2025-02-06 04:53:34,816 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2025-02-06 04:53:34,831 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:53:34,832 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. [2025-02-06 04:53:34,904 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:53:34,919 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;@34384191, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:53:34,919 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 04:53:34,924 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) [2025-02-06 04:53:34,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-02-06 04:53:34,933 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:53:34,935 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] [2025-02-06 04:53:34,936 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:53:34,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:53:34,942 INFO L85 PathProgramCache]: Analyzing trace with hash 206988999, now seen corresponding path program 1 times [2025-02-06 04:53:34,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:53:34,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827720202] [2025-02-06 04:53:34,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:34,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:53:40,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 04:53:40,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 04:53:40,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:40,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:41,836 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-06 04:53:41,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:53:41,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827720202] [2025-02-06 04:53:41,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827720202] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:53:41,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221776772] [2025-02-06 04:53:41,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:41,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:53:41,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:53:41,844 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) [2025-02-06 04:53:41,848 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 [2025-02-06 04:53:46,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 04:53:47,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 04:53:47,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:47,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:47,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 4018 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 04:53:47,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:53:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-06 04:53:47,758 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:53:47,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221776772] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:53:47,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:53:47,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 04:53:47,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882306908] [2025-02-06 04:53:47,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:53:47,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:53:47,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:53:47,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:53:47,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 04:53:47,788 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) [2025-02-06 04:53:50,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:53:50,414 INFO L93 Difference]: Finished difference Result 351 states and 522 transitions. [2025-02-06 04:53:50,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:53:50,416 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 [2025-02-06 04:53:50,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:53:50,424 INFO L225 Difference]: With dead ends: 351 [2025-02-06 04:53:50,424 INFO L226 Difference]: Without dead ends: 175 [2025-02-06 04:53:50,429 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 [2025-02-06 04:53:50,432 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, 2.2s IncrementalHoareTripleChecker+Time [2025-02-06 04:53:50,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 671 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-06 04:53:50,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-02-06 04:53:50,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-02-06 04:53:50,482 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) [2025-02-06 04:53:50,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 240 transitions. [2025-02-06 04:53:50,492 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 240 transitions. Word has length 69 [2025-02-06 04:53:50,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:53:50,495 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 240 transitions. [2025-02-06 04:53:50,495 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) [2025-02-06 04:53:50,496 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 240 transitions. [2025-02-06 04:53:50,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-06 04:53:50,499 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:53:50,500 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] [2025-02-06 04:53:50,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 04:53:50,700 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 [2025-02-06 04:53:50,701 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:53:50,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:53:50,701 INFO L85 PathProgramCache]: Analyzing trace with hash -2095157621, now seen corresponding path program 1 times [2025-02-06 04:53:50,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:53:50,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989973494] [2025-02-06 04:53:50,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:50,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:53:54,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-06 04:53:55,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-06 04:53:55,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:53:55,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:53:57,033 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-06 04:53:57,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:53:57,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989973494] [2025-02-06 04:53:57,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989973494] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:53:57,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139500726] [2025-02-06 04:53:57,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:53:57,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:53:57,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:53:57,038 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) [2025-02-06 04:53:57,040 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 [2025-02-06 04:54:01,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-06 04:54:02,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-06 04:54:02,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:54:02,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:54:02,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 4145 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 04:54:02,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:54:03,269 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-02-06 04:54:03,270 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 04:54:03,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139500726] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:54:03,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 04:54:03,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-02-06 04:54:03,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267567518] [2025-02-06 04:54:03,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:54:03,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 04:54:03,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:54:03,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 04:54:03,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-06 04:54:03,274 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) [2025-02-06 04:54:06,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 04:54:06,871 INFO L93 Difference]: Finished difference Result 322 states and 451 transitions. [2025-02-06 04:54:06,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:54:06,871 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 [2025-02-06 04:54:06,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 04:54:06,874 INFO L225 Difference]: With dead ends: 322 [2025-02-06 04:54:06,874 INFO L226 Difference]: Without dead ends: 187 [2025-02-06 04:54:06,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-02-06 04:54:06,876 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 254 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s 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, 3.0s IncrementalHoareTripleChecker+Time [2025-02-06 04:54:06,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 983 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2025-02-06 04:54:06,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2025-02-06 04:54:06,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2025-02-06 04:54:06,893 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) [2025-02-06 04:54:06,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 257 transitions. [2025-02-06 04:54:06,896 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 257 transitions. Word has length 84 [2025-02-06 04:54:06,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 04:54:06,896 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 257 transitions. [2025-02-06 04:54:06,897 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) [2025-02-06 04:54:06,897 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 257 transitions. [2025-02-06 04:54:06,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-02-06 04:54:06,899 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 04:54:06,899 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] [2025-02-06 04:54:06,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 04:54:07,099 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 [2025-02-06 04:54:07,100 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 04:54:07,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:54:07,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1846006283, now seen corresponding path program 1 times [2025-02-06 04:54:07,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:54:07,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953886161] [2025-02-06 04:54:07,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:54:07,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:54:10,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-02-06 04:54:13,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-02-06 04:54:13,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:54:13,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:54:21,243 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2025-02-06 04:54:21,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:54:21,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953886161] [2025-02-06 04:54:21,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953886161] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:54:21,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985114200] [2025-02-06 04:54:21,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:54:21,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:54:21,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:54:21,247 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) [2025-02-06 04:54:21,289 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 [2025-02-06 04:54:25,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes.