./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_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 14628bdc2b5dee98fd531ba30b57569c060efa6ead93e7c2de47c8a88cf53b5a --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:29:21,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:29:21,167 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:29:21,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:29:21,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:29:21,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:29:21,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:29:21,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:29:21,192 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:29:21,192 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:29:21,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:29:21,192 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:29:21,192 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:29:21,192 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:29:21,192 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:29:21,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:29:21,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:29:21,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:29:21,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:29:21,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:29:21,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:29:21,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:29:21,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:29:21,193 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:29:21,193 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:29:21,193 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:29:21,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:29:21,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:29:21,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:29:21,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:29:21,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:29:21,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:29:21,194 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:29:21,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:29:21,194 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:29:21,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:29:21,194 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:29:21,194 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:29:21,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:29:21,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:29:21,195 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 -> 14628bdc2b5dee98fd531ba30b57569c060efa6ead93e7c2de47c8a88cf53b5a [2025-02-08 01:29:21,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:29:21,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:29:21,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:29:21,477 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:29:21,477 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:29:21,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2025-02-08 01:29:22,640 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e36a95af/476c640458234d338b1f0793d0b0ce8c/FLAG82c4eeb88 [2025-02-08 01:29:22,990 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:29:22,992 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2025-02-08 01:29:23,026 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e36a95af/476c640458234d338b1f0793d0b0ce8c/FLAG82c4eeb88 [2025-02-08 01:29:23,188 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e36a95af/476c640458234d338b1f0793d0b0ce8c [2025-02-08 01:29:23,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:29:23,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:29:23,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:29:23,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:29:23,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:29:23,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:29:23" (1/1) ... [2025-02-08 01:29:23,198 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d02557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:23, skipping insertion in model container [2025-02-08 01:29:23,198 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:29:23" (1/1) ... [2025-02-08 01:29:23,256 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:29:23,477 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_set_at_harness.i[4495,4508] [2025-02-08 01:29:23,487 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_set_at_harness.i[4555,4568] [2025-02-08 01:29:23,878 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:23,879 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:23,879 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:23,880 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:23,880 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:23,890 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:23,891 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:23,893 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:23,895 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:23,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:23,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:23,897 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:23,897 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,249 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,304 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,305 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,305 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:29:24,343 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:29:24,357 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_set_at_harness.i[4495,4508] [2025-02-08 01:29:24,357 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_set_at_harness.i[4555,4568] [2025-02-08 01:29:24,399 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,399 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,399 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,400 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,400 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,407 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,407 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,410 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,410 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,410 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,411 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,473 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,477 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7770-7781] [2025-02-08 01:29:24,500 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,501 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,501 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:29:24,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:29:24,673 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:29:24,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24 WrapperNode [2025-02-08 01:29:24,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:29:24,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:29:24,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:29:24,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:29:24,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24" (1/1) ... [2025-02-08 01:29:24,742 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24" (1/1) ... [2025-02-08 01:29:24,773 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 50, calls inlined = 10, statements flattened = 850 [2025-02-08 01:29:24,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:29:24,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:29:24,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:29:24,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:29:24,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24" (1/1) ... [2025-02-08 01:29:24,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24" (1/1) ... [2025-02-08 01:29:24,791 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24" (1/1) ... [2025-02-08 01:29:24,855 INFO L175 MemorySlicer]: Split 332 memory accesses to 6 slices as follows [238, 2, 6, 72, 8, 6]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 10, 5, 1]. The 241 writes are split as follows [232, 0, 2, 6, 0, 1]. [2025-02-08 01:29:24,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24" (1/1) ... [2025-02-08 01:29:24,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24" (1/1) ... [2025-02-08 01:29:24,891 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24" (1/1) ... [2025-02-08 01:29:24,896 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24" (1/1) ... [2025-02-08 01:29:24,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24" (1/1) ... [2025-02-08 01:29:24,917 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24" (1/1) ... [2025-02-08 01:29:24,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:29:24,928 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:29:24,928 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:29:24,928 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:29:24,929 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24" (1/1) ... [2025-02-08 01:29:24,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:29:24,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:29:24,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:29:24,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:29:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:29:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-08 01:29:24,975 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-08 01:29:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:29:24,975 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:29:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:29:24,975 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:29:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-02-08 01:29:24,975 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-02-08 01:29:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:29:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:29:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:29:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:29:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:29:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:29:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:29:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:29:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:29:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:29:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:29:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:29:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:29:24,976 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:29:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:29:24,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:29:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:29:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:29:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:29:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:29:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:29:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:29:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:29:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:29:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-02-08 01:29:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-02-08 01:29:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:29:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:29:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:29:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:29:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-08 01:29:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-08 01:29:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-02-08 01:29:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-02-08 01:29:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:29:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:29:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:29:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:29:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:29:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:29:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:29:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:29:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-02-08 01:29:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-02-08 01:29:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-02-08 01:29:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-02-08 01:29:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-02-08 01:29:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-02-08 01:29:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:29:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:29:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-02-08 01:29:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-02-08 01:29:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2025-02-08 01:29:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2025-02-08 01:29:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:29:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-08 01:29:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-08 01:29:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:29:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:29:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:29:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-08 01:29:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-08 01:29:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:29:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:29:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:29:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:29:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:29:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:29:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:29:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:29:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2025-02-08 01:29:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2025-02-08 01:29:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:29:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:29:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:29:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:29:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:29:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:29:25,243 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:29:25,244 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:29:25,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-08 01:29:25,307 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-02-08 01:29:25,350 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-08 01:29:25,376 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-02-08 01:29:25,451 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-08 01:29:25,454 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:29:25,469 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2025-02-08 01:29:25,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7535: havoc aws_array_list_ensure_capacity_#t~ret764#1; [2025-02-08 01:29:25,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7412: call ULTIMATE.dealloc(aws_array_list_calc_necessary_size_~#index_inc~0#1.base, aws_array_list_calc_necessary_size_~#index_inc~0#1.offset);havoc aws_array_list_calc_necessary_size_~#index_inc~0#1.base, aws_array_list_calc_necessary_size_~#index_inc~0#1.offset; [2025-02-08 01:29:25,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7513: call ULTIMATE.dealloc(aws_array_list_ensure_capacity_~#necessary_size~0#1.base, aws_array_list_ensure_capacity_~#necessary_size~0#1.offset);havoc aws_array_list_ensure_capacity_~#necessary_size~0#1.base, aws_array_list_ensure_capacity_~#necessary_size~0#1.offset; [2025-02-08 01:29:25,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7522: havoc aws_array_list_ensure_capacity_#t~ret757#1; [2025-02-08 01:29:25,618 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7391: havoc #t~ret681.base, #t~ret681.offset; [2025-02-08 01:29:25,634 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2615: havoc #t~ret59#1; [2025-02-08 01:29:30,853 INFO L? ?]: Removed 159 outVars from TransFormulas that were not future-live. [2025-02-08 01:29:30,853 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:29:30,870 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:29:30,873 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:29:30,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:29:30 BoogieIcfgContainer [2025-02-08 01:29:30,873 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:29:30,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:29:30,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:29:30,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:29:30,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:29:23" (1/3) ... [2025-02-08 01:29:30,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db04ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:29:30, skipping insertion in model container [2025-02-08 01:29:30,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:29:24" (2/3) ... [2025-02-08 01:29:30,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db04ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:29:30, skipping insertion in model container [2025-02-08 01:29:30,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:29:30" (3/3) ... [2025-02-08 01:29:30,881 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2025-02-08 01:29:30,892 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:29:30,894 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_set_at_harness.i that has 24 procedures, 287 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:29:30,943 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:29:30,953 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;@72c4b46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:29:30,954 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:29:30,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 287 states, 163 states have (on average 1.2208588957055215) internal successors, (199), 168 states have internal predecessors, (199), 96 states have call successors, (96), 23 states have call predecessors, (96), 23 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2025-02-08 01:29:30,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-02-08 01:29:30,969 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:29:30,970 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:29:30,970 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:29:30,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:29:30,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1948483330, now seen corresponding path program 1 times [2025-02-08 01:29:30,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:29:30,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473150607] [2025-02-08 01:29:30,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:29:30,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:29:35,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-08 01:29:35,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-08 01:29:35,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:29:35,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:29:36,229 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2025-02-08 01:29:36,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:29:36,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473150607] [2025-02-08 01:29:36,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473150607] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:29:36,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338611478] [2025-02-08 01:29:36,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:29:36,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:29:36,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:29:36,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:29:36,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 01:29:40,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-08 01:29:40,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-08 01:29:40,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:29:40,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:29:40,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 4469 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:29:40,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:29:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2025-02-08 01:29:40,835 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:29:40,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338611478] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:29:40,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:29:40,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:29:40,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412184269] [2025-02-08 01:29:40,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:29:40,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:29:40,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:29:40,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:29:40,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:29:40,863 INFO L87 Difference]: Start difference. First operand has 287 states, 163 states have (on average 1.2208588957055215) internal successors, (199), 168 states have internal predecessors, (199), 96 states have call successors, (96), 23 states have call predecessors, (96), 23 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-08 01:29:40,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:29:40,921 INFO L93 Difference]: Finished difference Result 568 states and 831 transitions. [2025-02-08 01:29:40,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:29:40,923 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 154 [2025-02-08 01:29:40,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:29:40,929 INFO L225 Difference]: With dead ends: 568 [2025-02-08 01:29:40,930 INFO L226 Difference]: Without dead ends: 277 [2025-02-08 01:29:40,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:29:40,941 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 01:29:40,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:29:40,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2025-02-08 01:29:40,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2025-02-08 01:29:40,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 159 states have (on average 1.1949685534591195) internal successors, (190), 161 states have internal predecessors, (190), 94 states have call successors, (94), 23 states have call predecessors, (94), 23 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-08 01:29:41,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 377 transitions. [2025-02-08 01:29:41,004 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 377 transitions. Word has length 154 [2025-02-08 01:29:41,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:29:41,005 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 377 transitions. [2025-02-08 01:29:41,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2025-02-08 01:29:41,005 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 377 transitions. [2025-02-08 01:29:41,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-02-08 01:29:41,007 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:29:41,008 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:29:41,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:29:41,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 01:29:41,212 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:29:41,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:29:41,214 INFO L85 PathProgramCache]: Analyzing trace with hash -533909371, now seen corresponding path program 1 times [2025-02-08 01:29:41,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:29:41,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442998460] [2025-02-08 01:29:41,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:29:41,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:29:45,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-08 01:29:45,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-08 01:29:45,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:29:45,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:29:46,272 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2025-02-08 01:29:46,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:29:46,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442998460] [2025-02-08 01:29:46,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442998460] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:29:46,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580823974] [2025-02-08 01:29:46,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:29:46,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:29:46,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:29:46,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:29:46,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 01:29:50,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-08 01:29:50,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-08 01:29:50,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:29:50,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:29:50,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 4469 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 01:29:50,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:29:51,477 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2025-02-08 01:29:51,478 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:29:51,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580823974] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:29:51,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:29:51,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-02-08 01:29:51,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661458982] [2025-02-08 01:29:51,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:29:51,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:29:51,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:29:51,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:29:51,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:29:51,482 INFO L87 Difference]: Start difference. First operand 277 states and 377 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2025-02-08 01:29:53,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:29:53,129 INFO L93 Difference]: Finished difference Result 531 states and 739 transitions. [2025-02-08 01:29:53,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:29:53,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 154 [2025-02-08 01:29:53,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:29:53,134 INFO L225 Difference]: With dead ends: 531 [2025-02-08 01:29:53,134 INFO L226 Difference]: Without dead ends: 279 [2025-02-08 01:29:53,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:29:53,136 INFO L435 NwaCegarLoop]: 348 mSDtfsCounter, 40 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-08 01:29:53,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1295 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-08 01:29:53,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2025-02-08 01:29:53,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2025-02-08 01:29:53,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 160 states have (on average 1.19375) internal successors, (191), 163 states have internal predecessors, (191), 94 states have call successors, (94), 23 states have call predecessors, (94), 24 states have return successors, (109), 93 states have call predecessors, (109), 93 states have call successors, (109) [2025-02-08 01:29:53,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 394 transitions. [2025-02-08 01:29:53,153 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 394 transitions. Word has length 154 [2025-02-08 01:29:53,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:29:53,154 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 394 transitions. [2025-02-08 01:29:53,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2025-02-08 01:29:53,154 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 394 transitions. [2025-02-08 01:29:53,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-02-08 01:29:53,159 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:29:53,159 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:29:53,176 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 01:29:53,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:29:53,360 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:29:53,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:29:53,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1907958675, now seen corresponding path program 1 times [2025-02-08 01:29:53,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:29:53,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515110233] [2025-02-08 01:29:53,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:29:53,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:29:57,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-02-08 01:29:57,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-02-08 01:29:57,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:29:57,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:29:58,755 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2025-02-08 01:29:58,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:29:58,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515110233] [2025-02-08 01:29:58,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515110233] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:29:58,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169237931] [2025-02-08 01:29:58,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:29:58,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:29:58,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:29:58,757 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:29:58,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 01:30:02,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-02-08 01:30:03,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-02-08 01:30:03,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:30:03,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:03,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 4723 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 01:30:03,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:30:04,699 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2025-02-08 01:30:04,699 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:30:04,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169237931] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:30:04,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:30:04,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-02-08 01:30:04,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506213395] [2025-02-08 01:30:04,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:30:04,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:30:04,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:30:04,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:30:04,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-02-08 01:30:04,702 INFO L87 Difference]: Start difference. First operand 279 states and 394 transitions. Second operand has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2025-02-08 01:30:06,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:30:06,707 INFO L93 Difference]: Finished difference Result 503 states and 709 transitions. [2025-02-08 01:30:06,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:30:06,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 182 [2025-02-08 01:30:06,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:30:06,710 INFO L225 Difference]: With dead ends: 503 [2025-02-08 01:30:06,710 INFO L226 Difference]: Without dead ends: 279 [2025-02-08 01:30:06,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:30:06,716 INFO L435 NwaCegarLoop]: 346 mSDtfsCounter, 146 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-08 01:30:06,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1811 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-08 01:30:06,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2025-02-08 01:30:06,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2025-02-08 01:30:06,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 160 states have (on average 1.19375) internal successors, (191), 163 states have internal predecessors, (191), 94 states have call successors, (94), 23 states have call predecessors, (94), 24 states have return successors, (105), 93 states have call predecessors, (105), 93 states have call successors, (105) [2025-02-08 01:30:06,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 390 transitions. [2025-02-08 01:30:06,749 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 390 transitions. Word has length 182 [2025-02-08 01:30:06,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:30:06,751 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 390 transitions. [2025-02-08 01:30:06,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2025-02-08 01:30:06,752 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 390 transitions. [2025-02-08 01:30:06,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2025-02-08 01:30:06,753 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:30:06,756 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:30:06,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 01:30:06,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:30:06,957 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:30:06,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:30:06,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1983542682, now seen corresponding path program 2 times [2025-02-08 01:30:06,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:30:06,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272094958] [2025-02-08 01:30:06,958 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:30:06,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:30:10,606 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 196 statements into 2 equivalence classes. [2025-02-08 01:30:10,690 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 31 of 196 statements. [2025-02-08 01:30:10,691 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:30:10,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:11,260 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2025-02-08 01:30:11,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:30:11,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272094958] [2025-02-08 01:30:11,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272094958] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:30:11,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:30:11,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:30:11,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554363560] [2025-02-08 01:30:11,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:30:11,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:30:11,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:30:11,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:30:11,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:30:11,263 INFO L87 Difference]: Start difference. First operand 279 states and 390 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-08 01:30:11,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:30:11,359 INFO L93 Difference]: Finished difference Result 477 states and 654 transitions. [2025-02-08 01:30:11,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:30:11,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 196 [2025-02-08 01:30:11,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:30:11,363 INFO L225 Difference]: With dead ends: 477 [2025-02-08 01:30:11,363 INFO L226 Difference]: Without dead ends: 276 [2025-02-08 01:30:11,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:30:11,366 INFO L435 NwaCegarLoop]: 369 mSDtfsCounter, 0 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:30:11,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1102 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 01:30:11,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2025-02-08 01:30:11,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2025-02-08 01:30:11,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 159 states have (on average 1.1886792452830188) internal successors, (189), 162 states have internal predecessors, (189), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (102), 91 states have call predecessors, (102), 91 states have call successors, (102) [2025-02-08 01:30:11,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 383 transitions. [2025-02-08 01:30:11,392 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 383 transitions. Word has length 196 [2025-02-08 01:30:11,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:30:11,393 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 383 transitions. [2025-02-08 01:30:11,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-08 01:30:11,393 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 383 transitions. [2025-02-08 01:30:11,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2025-02-08 01:30:11,397 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:30:11,397 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:30:11,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:30:11,398 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:30:11,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:30:11,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1017397981, now seen corresponding path program 1 times [2025-02-08 01:30:11,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:30:11,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009351437] [2025-02-08 01:30:11,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:11,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:30:15,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes. [2025-02-08 01:30:15,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements. [2025-02-08 01:30:15,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:30:15,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:16,696 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2025-02-08 01:30:16,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:30:16,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009351437] [2025-02-08 01:30:16,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009351437] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:30:16,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988969137] [2025-02-08 01:30:16,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:16,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:30:16,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:30:16,700 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:30:16,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 01:30:21,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes. [2025-02-08 01:30:21,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements. [2025-02-08 01:30:21,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:30:21,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:21,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 4947 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 01:30:21,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:30:23,161 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2025-02-08 01:30:23,161 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:30:23,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988969137] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:30:23,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:30:23,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2025-02-08 01:30:23,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786196656] [2025-02-08 01:30:23,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:30:23,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 01:30:23,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:30:23,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 01:30:23,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-02-08 01:30:23,162 INFO L87 Difference]: Start difference. First operand 276 states and 383 transitions. Second operand has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2025-02-08 01:30:25,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:30:25,547 INFO L93 Difference]: Finished difference Result 491 states and 677 transitions. [2025-02-08 01:30:25,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:30:25,548 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 207 [2025-02-08 01:30:25,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:30:25,552 INFO L225 Difference]: With dead ends: 491 [2025-02-08 01:30:25,552 INFO L226 Difference]: Without dead ends: 276 [2025-02-08 01:30:25,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2025-02-08 01:30:25,554 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 178 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:30:25,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 2059 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-02-08 01:30:25,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2025-02-08 01:30:25,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2025-02-08 01:30:25,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 159 states have (on average 1.1886792452830188) internal successors, (189), 162 states have internal predecessors, (189), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (96), 91 states have call predecessors, (96), 91 states have call successors, (96) [2025-02-08 01:30:25,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 377 transitions. [2025-02-08 01:30:25,574 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 377 transitions. Word has length 207 [2025-02-08 01:30:25,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:30:25,575 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 377 transitions. [2025-02-08 01:30:25,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2025-02-08 01:30:25,575 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 377 transitions. [2025-02-08 01:30:25,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2025-02-08 01:30:25,576 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:30:25,576 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:30:25,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 01:30:25,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:30:25,782 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:30:25,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:30:25,785 INFO L85 PathProgramCache]: Analyzing trace with hash 130368822, now seen corresponding path program 2 times [2025-02-08 01:30:25,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:30:25,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84592205] [2025-02-08 01:30:25,785 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:30:25,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:30:29,342 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 221 statements into 2 equivalence classes. [2025-02-08 01:30:29,903 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 221 of 221 statements. [2025-02-08 01:30:29,904 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 01:30:29,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:31,716 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2025-02-08 01:30:31,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:30:31,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84592205] [2025-02-08 01:30:31,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84592205] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:30:31,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:30:31,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 01:30:31,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207618428] [2025-02-08 01:30:31,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:30:31,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:30:31,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:30:31,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:30:31,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:30:31,719 INFO L87 Difference]: Start difference. First operand 276 states and 377 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2025-02-08 01:30:35,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:30:40,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:30:44,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:30:45,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:30:45,655 INFO L93 Difference]: Finished difference Result 544 states and 747 transitions. [2025-02-08 01:30:45,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:30:45,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 221 [2025-02-08 01:30:45,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:30:45,659 INFO L225 Difference]: With dead ends: 544 [2025-02-08 01:30:45,660 INFO L226 Difference]: Without dead ends: 318 [2025-02-08 01:30:45,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:30:45,662 INFO L435 NwaCegarLoop]: 377 mSDtfsCounter, 22 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2025-02-08 01:30:45,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2250 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time] [2025-02-08 01:30:45,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2025-02-08 01:30:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 292. [2025-02-08 01:30:45,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 169 states have (on average 1.183431952662722) internal successors, (200), 172 states have internal predecessors, (200), 97 states have call successors, (97), 23 states have call predecessors, (97), 25 states have return successors, (103), 97 states have call predecessors, (103), 96 states have call successors, (103) [2025-02-08 01:30:45,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 400 transitions. [2025-02-08 01:30:45,680 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 400 transitions. Word has length 221 [2025-02-08 01:30:45,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:30:45,680 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 400 transitions. [2025-02-08 01:30:45,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2025-02-08 01:30:45,681 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 400 transitions. [2025-02-08 01:30:45,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2025-02-08 01:30:45,683 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:30:45,683 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:30:45,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 01:30:45,683 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:30:45,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:30:45,684 INFO L85 PathProgramCache]: Analyzing trace with hash -856213867, now seen corresponding path program 1 times [2025-02-08 01:30:45,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:30:45,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804606649] [2025-02-08 01:30:45,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:45,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:30:49,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes. [2025-02-08 01:30:49,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 221 of 221 statements. [2025-02-08 01:30:49,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:30:49,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:51,653 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2025-02-08 01:30:51,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:30:51,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804606649] [2025-02-08 01:30:51,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804606649] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:30:51,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146563373] [2025-02-08 01:30:51,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:51,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:30:51,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:30:51,657 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:30:51,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 01:30:56,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes.