./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 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_contents_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 dffc4cc659c78c5e4d3c572c2e076191f4762fb06451fbe9d95775fc3e18059d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 16:58:17,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 16:58:17,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 16:58:17,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 16:58:17,709 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 16:58:17,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 16:58:17,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 16:58:17,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 16:58:17,735 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 16:58:17,735 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 16:58:17,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 16:58:17,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 16:58:17,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 16:58:17,735 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 16:58:17,735 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 16:58:17,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 16:58:17,736 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 16:58:17,736 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 16:58:17,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 16:58:17,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 16:58:17,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 16:58:17,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 16:58:17,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 16:58:17,738 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 16:58:17,738 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 16:58:17,738 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 16:58:17,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:58:17,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:58:17,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:58:17,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:58:17,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 16:58:17,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:58:17,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:58:17,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:58:17,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:58:17,740 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 16:58:17,740 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 16:58:17,740 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 16:58:17,740 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 16:58:17,740 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 16:58:17,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 16:58:17,740 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 16:58:17,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 16:58:17,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 16:58:17,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 16:58:17,741 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 -> dffc4cc659c78c5e4d3c572c2e076191f4762fb06451fbe9d95775fc3e18059d [2025-01-09 16:58:17,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 16:58:18,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 16:58:18,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 16:58:18,003 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 16:58:18,003 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 16:58:18,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2025-01-09 16:58:19,235 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f0d4c3c29/5def810e0fe144dabb9b048079ccf597/FLAG11de341d0 [2025-01-09 16:58:19,752 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 16:58:19,752 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2025-01-09 16:58:19,786 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f0d4c3c29/5def810e0fe144dabb9b048079ccf597/FLAG11de341d0 [2025-01-09 16:58:19,809 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f0d4c3c29/5def810e0fe144dabb9b048079ccf597 [2025-01-09 16:58:19,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 16:58:19,813 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 16:58:19,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 16:58:19,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 16:58:19,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 16:58:19,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:58:19" (1/1) ... [2025-01-09 16:58:19,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c6a772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:19, skipping insertion in model container [2025-01-09 16:58:19,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:58:19" (1/1) ... [2025-01-09 16:58:19,897 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 16:58:20,160 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_contents_harness.i[4502,4515] [2025-01-09 16:58:20,169 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_contents_harness.i[4562,4575] [2025-01-09 16:58:20,859 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:20,859 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:20,860 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:20,860 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:20,861 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:20,871 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:20,872 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:20,874 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:20,876 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:20,878 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:20,878 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:20,879 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:20,879 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,279 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,287 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:58:21,425 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 16:58:21,437 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_contents_harness.i[4502,4515] [2025-01-09 16:58:21,438 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_contents_harness.i[4562,4575] [2025-01-09 16:58:21,502 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,503 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,503 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,504 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,504 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,511 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,511 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,512 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,513 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,514 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,515 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,515 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,516 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,621 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,626 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:58:21,637 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2025-01-09 16:58:21,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:58:21,950 INFO L204 MainTranslator]: Completed translation [2025-01-09 16:58:21,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21 WrapperNode [2025-01-09 16:58:21,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 16:58:21,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 16:58:21,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 16:58:21,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 16:58:21,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (1/1) ... [2025-01-09 16:58:22,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (1/1) ... [2025-01-09 16:58:22,131 INFO L138 Inliner]: procedures = 679, calls = 1720, calls flagged for inlining = 51, calls inlined = 7, statements flattened = 701 [2025-01-09 16:58:22,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 16:58:22,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 16:58:22,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 16:58:22,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 16:58:22,149 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (1/1) ... [2025-01-09 16:58:22,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (1/1) ... [2025-01-09 16:58:22,156 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (1/1) ... [2025-01-09 16:58:22,236 INFO L175 MemorySlicer]: Split 358 memory accesses to 7 slices as follows [238, 2, 6, 3, 7, 92, 10]. 66 percent of accesses are in the largest equivalence class. The 39 initializations are split as follows [6, 2, 0, 1, 5, 20, 5]. The 248 writes are split as follows [232, 0, 2, 1, 0, 13, 0]. [2025-01-09 16:58:22,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (1/1) ... [2025-01-09 16:58:22,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (1/1) ... [2025-01-09 16:58:22,288 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (1/1) ... [2025-01-09 16:58:22,294 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (1/1) ... [2025-01-09 16:58:22,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (1/1) ... [2025-01-09 16:58:22,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (1/1) ... [2025-01-09 16:58:22,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (1/1) ... [2025-01-09 16:58:22,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 16:58:22,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 16:58:22,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 16:58:22,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 16:58:22,347 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (1/1) ... [2025-01-09 16:58:22,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:58:22,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:58:22,393 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) [2025-01-09 16:58:22,397 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 [2025-01-09 16:58:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 16:58:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-01-09 16:58:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-01-09 16:58:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 16:58:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 16:58:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 16:58:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 16:58:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 16:58:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 16:58:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 16:58:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 16:58:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 16:58:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 16:58:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 16:58:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 16:58:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 16:58:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 16:58:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 16:58:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 16:58:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 16:58:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 16:58:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 16:58:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 16:58:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 16:58:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 16:58:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 16:58:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 16:58:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-01-09 16:58:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 16:58:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 16:58:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-01-09 16:58:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 16:58:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 16:58:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 16:58:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 16:58:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 16:58:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 16:58:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2025-01-09 16:58:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2025-01-09 16:58:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-01-09 16:58:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-01-09 16:58:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 16:58:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 16:58:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 16:58:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 16:58:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 16:58:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 16:58:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 16:58:22,834 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 16:58:22,837 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 16:58:29,513 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2025-01-09 16:58:29,514 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 16:58:29,525 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 16:58:29,525 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 16:58:29,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:58:29 BoogieIcfgContainer [2025-01-09 16:58:29,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 16:58:29,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 16:58:29,528 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 16:58:29,533 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 16:58:29,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:58:19" (1/3) ... [2025-01-09 16:58:29,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2f45c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:58:29, skipping insertion in model container [2025-01-09 16:58:29,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:58:21" (2/3) ... [2025-01-09 16:58:29,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2f45c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:58:29, skipping insertion in model container [2025-01-09 16:58:29,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:58:29" (3/3) ... [2025-01-09 16:58:29,535 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_contents_harness.i [2025-01-09 16:58:29,549 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 16:58:29,551 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_swap_contents_harness.i that has 15 procedures, 160 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 16:58:29,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 16:58:29,622 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;@459e5708, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 16:58:29,625 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 16:58:29,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 93 states have internal predecessors, (107), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-01-09 16:58:29,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-01-09 16:58:29,647 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:58:29,648 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:58:29,649 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:58:29,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:58:29,654 INFO L85 PathProgramCache]: Analyzing trace with hash -959965628, now seen corresponding path program 1 times [2025-01-09 16:58:29,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:58:29,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25250108] [2025-01-09 16:58:29,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:58:29,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:58:34,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-01-09 16:58:35,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-01-09 16:58:35,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:58:35,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:58:35,897 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2025-01-09 16:58:35,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:58:35,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25250108] [2025-01-09 16:58:35,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25250108] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:58:35,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994315900] [2025-01-09 16:58:35,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:58:35,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:58:35,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:58:35,903 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) [2025-01-09 16:58:35,904 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 [2025-01-09 16:58:40,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-01-09 16:58:41,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-01-09 16:58:41,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:58:41,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:58:41,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 4627 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 16:58:41,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:58:41,333 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2025-01-09 16:58:41,333 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:58:41,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994315900] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:58:41,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:58:41,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2025-01-09 16:58:41,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251037701] [2025-01-09 16:58:41,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:58:41,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 16:58:41,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:58:41,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 16:58:41,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 16:58:41,363 INFO L87 Difference]: Start difference. First operand has 160 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 93 states have internal predecessors, (107), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-01-09 16:58:41,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:58:41,482 INFO L93 Difference]: Finished difference Result 317 states and 454 transitions. [2025-01-09 16:58:41,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 16:58:41,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 174 [2025-01-09 16:58:41,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:58:41,490 INFO L225 Difference]: With dead ends: 317 [2025-01-09 16:58:41,491 INFO L226 Difference]: Without dead ends: 156 [2025-01-09 16:58:41,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 16:58:41,497 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 16:58:41,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 412 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 16:58:41,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2025-01-09 16:58:41,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2025-01-09 16:58:41,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 89 states have (on average 1.146067415730337) internal successors, (102), 90 states have internal predecessors, (102), 52 states have call successors, (52), 14 states have call predecessors, (52), 14 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-01-09 16:58:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 205 transitions. [2025-01-09 16:58:41,554 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 205 transitions. Word has length 174 [2025-01-09 16:58:41,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:58:41,555 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 205 transitions. [2025-01-09 16:58:41,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-01-09 16:58:41,556 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 205 transitions. [2025-01-09 16:58:41,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-01-09 16:58:41,562 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:58:41,563 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:58:41,585 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 [2025-01-09 16:58:41,763 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 [2025-01-09 16:58:41,764 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:58:41,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:58:41,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1876441160, now seen corresponding path program 1 times [2025-01-09 16:58:41,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:58:41,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716255138] [2025-01-09 16:58:41,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:58:41,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:58:45,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-01-09 16:58:46,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-01-09 16:58:46,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:58:46,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:58:47,503 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2025-01-09 16:58:47,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:58:47,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716255138] [2025-01-09 16:58:47,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716255138] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:58:47,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252642941] [2025-01-09 16:58:47,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:58:47,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:58:47,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:58:47,509 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) [2025-01-09 16:58:47,511 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 [2025-01-09 16:58:52,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-01-09 16:58:52,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-01-09 16:58:52,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:58:52,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:58:52,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 4633 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 16:58:52,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:58:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2025-01-09 16:58:53,337 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:58:53,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252642941] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:58:53,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:58:53,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-01-09 16:58:53,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036544606] [2025-01-09 16:58:53,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:58:53,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 16:58:53,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:58:53,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 16:58:53,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 16:58:53,339 INFO L87 Difference]: Start difference. First operand 156 states and 205 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-01-09 16:58:56,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 16:58:57,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 16:58:58,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:58:58,134 INFO L93 Difference]: Finished difference Result 307 states and 408 transitions. [2025-01-09 16:58:58,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 16:58:58,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 174 [2025-01-09 16:58:58,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:58:58,138 INFO L225 Difference]: With dead ends: 307 [2025-01-09 16:58:58,138 INFO L226 Difference]: Without dead ends: 158 [2025-01-09 16:58:58,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-01-09 16:58:58,140 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 198 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-01-09 16:58:58,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 575 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2025-01-09 16:58:58,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2025-01-09 16:58:58,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2025-01-09 16:58:58,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 92 states have internal predecessors, (103), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (57), 51 states have call predecessors, (57), 51 states have call successors, (57) [2025-01-09 16:58:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 212 transitions. [2025-01-09 16:58:58,156 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 212 transitions. Word has length 174 [2025-01-09 16:58:58,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:58:58,157 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 212 transitions. [2025-01-09 16:58:58,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-01-09 16:58:58,157 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 212 transitions. [2025-01-09 16:58:58,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2025-01-09 16:58:58,160 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:58:58,160 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:58:58,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 16:58:58,361 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 [2025-01-09 16:58:58,361 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:58:58,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:58:58,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1033136662, now seen corresponding path program 1 times [2025-01-09 16:58:58,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:58:58,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70347294] [2025-01-09 16:58:58,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:58:58,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:59:02,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 189 statements into 1 equivalence classes. [2025-01-09 16:59:02,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 189 of 189 statements. [2025-01-09 16:59:02,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:59:02,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:59:03,569 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2025-01-09 16:59:03,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:59:03,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70347294] [2025-01-09 16:59:03,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70347294] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:59:03,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21060025] [2025-01-09 16:59:03,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:59:03,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:59:03,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:59:03,573 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) [2025-01-09 16:59:03,576 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 [2025-01-09 16:59:07,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 189 statements into 1 equivalence classes. [2025-01-09 16:59:08,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 189 of 189 statements. [2025-01-09 16:59:08,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:59:08,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:59:08,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 4760 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 16:59:08,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:59:08,868 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2025-01-09 16:59:08,868 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:59:08,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21060025] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:59:08,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:59:08,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-01-09 16:59:08,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20017925] [2025-01-09 16:59:08,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:59:08,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 16:59:08,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:59:08,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 16:59:08,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 16:59:08,871 INFO L87 Difference]: Start difference. First operand 158 states and 212 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-01-09 16:59:12,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:59:12,526 INFO L93 Difference]: Finished difference Result 271 states and 365 transitions. [2025-01-09 16:59:12,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 16:59:12,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 189 [2025-01-09 16:59:12,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:59:12,528 INFO L225 Difference]: With dead ends: 271 [2025-01-09 16:59:12,528 INFO L226 Difference]: Without dead ends: 158 [2025-01-09 16:59:12,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-01-09 16:59:12,530 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 196 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2025-01-09 16:59:12,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 575 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2025-01-09 16:59:12,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2025-01-09 16:59:12,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2025-01-09 16:59:12,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 92 states have internal predecessors, (103), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (55), 51 states have call predecessors, (55), 51 states have call successors, (55) [2025-01-09 16:59:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 210 transitions. [2025-01-09 16:59:12,545 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 210 transitions. Word has length 189 [2025-01-09 16:59:12,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:59:12,547 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 210 transitions. [2025-01-09 16:59:12,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-01-09 16:59:12,547 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 210 transitions. [2025-01-09 16:59:12,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2025-01-09 16:59:12,550 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:59:12,550 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:59:12,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 16:59:12,757 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 [2025-01-09 16:59:12,757 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:59:12,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:59:12,758 INFO L85 PathProgramCache]: Analyzing trace with hash -765566814, now seen corresponding path program 2 times [2025-01-09 16:59:12,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:59:12,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916409056] [2025-01-09 16:59:12,758 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 16:59:12,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:59:16,643 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 204 statements into 2 equivalence classes. [2025-01-09 16:59:17,356 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 204 of 204 statements. [2025-01-09 16:59:17,356 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 16:59:17,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:59:18,880 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2025-01-09 16:59:18,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:59:18,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916409056] [2025-01-09 16:59:18,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916409056] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:59:18,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:59:18,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 16:59:18,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482534992] [2025-01-09 16:59:18,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:59:18,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 16:59:18,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:59:18,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 16:59:18,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 16:59:18,884 INFO L87 Difference]: Start difference. First operand 158 states and 210 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2025-01-09 16:59:20,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:59:20,757 INFO L93 Difference]: Finished difference Result 240 states and 316 transitions. [2025-01-09 16:59:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 16:59:20,759 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 204 [2025-01-09 16:59:20,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:59:20,761 INFO L225 Difference]: With dead ends: 240 [2025-01-09 16:59:20,761 INFO L226 Difference]: Without dead ends: 158 [2025-01-09 16:59:20,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 16:59:20,762 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 23 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-01-09 16:59:20,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 849 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-01-09 16:59:20,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2025-01-09 16:59:20,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2025-01-09 16:59:20,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 92 states have internal predecessors, (103), 52 states have call successors, (52), 14 states have call predecessors, (52), 15 states have return successors, (53), 51 states have call predecessors, (53), 51 states have call successors, (53) [2025-01-09 16:59:20,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2025-01-09 16:59:20,792 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 204 [2025-01-09 16:59:20,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:59:20,793 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2025-01-09 16:59:20,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2025-01-09 16:59:20,793 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2025-01-09 16:59:20,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2025-01-09 16:59:20,795 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:59:20,795 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:59:20,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 16:59:20,796 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:59:20,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:59:20,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1919405256, now seen corresponding path program 3 times [2025-01-09 16:59:20,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:59:20,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481806632] [2025-01-09 16:59:20,796 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 16:59:20,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:59:24,363 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 234 statements into 14 equivalence classes. [2025-01-09 16:59:25,556 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 57 of 234 statements. [2025-01-09 16:59:25,556 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-09 16:59:25,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:59:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2025-01-09 16:59:28,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:59:28,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481806632] [2025-01-09 16:59:28,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481806632] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:59:28,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158528564] [2025-01-09 16:59:28,048 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 16:59:28,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:59:28,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:59:28,050 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) [2025-01-09 16:59:28,051 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 [2025-01-09 16:59:32,702 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 234 statements into 14 equivalence classes.