./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_linked_list_back_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_linked_list_back_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 baad12004cda93802c22774fa87dd5ddbc51e76f7e3c81692100acfcfda43c3a --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:51:55,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:51:55,864 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:51:55,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:51:55,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:51:55,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:51:55,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:51:55,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:51:55,905 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:51:55,905 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:51:55,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:51:55,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:51:55,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:51:55,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:51:55,907 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:51:55,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:51:55,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:51:55,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:51:55,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:51:55,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:51:55,909 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:51:55,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:51:55,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:51:55,910 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:51:55,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:51:55,910 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:51:55,910 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:51:55,910 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 -> baad12004cda93802c22774fa87dd5ddbc51e76f7e3c81692100acfcfda43c3a [2025-02-08 01:51:56,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:51:56,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:51:56,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:51:56,241 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:51:56,242 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:51:56,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i [2025-02-08 01:51:57,583 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ddc19733b/78a4c539430d401799678ab9d68e183a/FLAGf420df3b7 [2025-02-08 01:51:58,755 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:51:58,756 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i [2025-02-08 01:51:58,788 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ddc19733b/78a4c539430d401799678ab9d68e183a/FLAGf420df3b7 [2025-02-08 01:51:58,803 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ddc19733b/78a4c539430d401799678ab9d68e183a [2025-02-08 01:51:58,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:51:58,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:51:58,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:51:58,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:51:58,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:51:58,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:51:58" (1/1) ... [2025-02-08 01:51:58,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d49fe5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:58, skipping insertion in model container [2025-02-08 01:51:58,814 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:51:58" (1/1) ... [2025-02-08 01:51:58,893 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:51:59,153 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_linked_list_back_harness.i[4494,4507] [2025-02-08 01:51:59,161 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_linked_list_back_harness.i[4554,4567] [2025-02-08 01:51:59,794 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:59,794 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:59,795 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:59,796 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:59,797 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:59,811 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:59,811 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:59,813 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:59,813 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:59,815 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:59,816 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:59,816 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:59,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,186 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_linked_list_back_harness.i[150650,150663] [2025-02-08 01:52:00,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:52:00,204 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:52:00,220 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_linked_list_back_harness.i[4494,4507] [2025-02-08 01:52:00,220 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_linked_list_back_harness.i[4554,4567] [2025-02-08 01:52:00,280 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,281 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,282 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,282 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,285 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,294 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,296 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,297 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,297 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,298 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,298 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,298 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,298 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:52:00,392 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_linked_list_back_harness.i[150650,150663] [2025-02-08 01:52:00,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:52:00,554 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:52:00,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00 WrapperNode [2025-02-08 01:52:00,555 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:52:00,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:52:00,556 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:52:00,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:52:00,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00" (1/1) ... [2025-02-08 01:52:00,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00" (1/1) ... [2025-02-08 01:52:00,686 INFO L138 Inliner]: procedures = 668, calls = 1043, calls flagged for inlining = 51, calls inlined = 5, statements flattened = 129 [2025-02-08 01:52:00,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:52:00,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:52:00,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:52:00,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:52:00,697 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00" (1/1) ... [2025-02-08 01:52:00,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00" (1/1) ... [2025-02-08 01:52:00,702 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00" (1/1) ... [2025-02-08 01:52:00,731 INFO L175 MemorySlicer]: Split 27 memory accesses to 3 slices as follows [2, 5, 20]. 74 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 6 writes are split as follows [0, 0, 6]. [2025-02-08 01:52:00,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00" (1/1) ... [2025-02-08 01:52:00,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00" (1/1) ... [2025-02-08 01:52:00,753 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00" (1/1) ... [2025-02-08 01:52:00,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00" (1/1) ... [2025-02-08 01:52:00,763 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00" (1/1) ... [2025-02-08 01:52:00,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00" (1/1) ... [2025-02-08 01:52:00,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:52:00,775 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:52:00,775 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:52:00,775 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:52:00,776 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00" (1/1) ... [2025-02-08 01:52:00,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:52:00,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:52:00,812 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 01:52:00,816 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 01:52:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_back [2025-02-08 01:52:00,844 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_back [2025-02-08 01:52:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:52:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:52:00,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:52:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2025-02-08 01:52:00,844 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2025-02-08 01:52:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:52:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2025-02-08 01:52:00,844 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2025-02-08 01:52:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:52:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:52:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:52:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:52:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:52:00,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:52:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2025-02-08 01:52:00,844 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2025-02-08 01:52:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:52:00,844 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:52:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:52:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:52:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:52:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:52:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:52:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:52:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:52:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-08 01:52:00,845 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-08 01:52:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2025-02-08 01:52:00,845 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2025-02-08 01:52:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:52:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:52:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:52:01,076 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:52:01,078 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:52:01,136 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4729: havoc #t~mem317.base, #t~mem317.offset;havoc #t~short318;havoc #t~mem319.base, #t~mem319.offset;havoc #t~mem320.base, #t~mem320.offset;havoc #t~short321; [2025-02-08 01:52:01,141 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-08 01:52:01,192 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4718: havoc #t~mem312.base, #t~mem312.offset;havoc #t~short313;havoc #t~mem314.base, #t~mem314.offset;havoc #t~mem315.base, #t~mem315.offset;havoc #t~short316; [2025-02-08 01:52:01,354 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4700-1: #t~ret311#1 := aws_linked_list_is_valid_deep_#res#1;havoc aws_linked_list_is_valid_deep_#t~ret322#1, aws_linked_list_is_valid_deep_#t~mem323#1.base, aws_linked_list_is_valid_deep_#t~mem323#1.offset, aws_linked_list_is_valid_deep_~list#1.base, aws_linked_list_is_valid_deep_~list#1.offset, aws_linked_list_is_valid_deep_~temp~0#1.base, aws_linked_list_is_valid_deep_~temp~0#1.offset, aws_linked_list_is_valid_deep_~head_reaches_tail~0#1;havoc aws_linked_list_is_valid_deep_#in~list#1.base, aws_linked_list_is_valid_deep_#in~list#1.offset;assume { :end_inline_aws_linked_list_is_valid_deep } true;#res#1 := (if 0 == #t~ret311#1 % 256 then 0 else 1);havoc #t~ret311#1; [2025-02-08 01:52:01,354 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4700: havoc #t~ret311#1; [2025-02-08 01:52:01,364 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4685: havoc #t~mem302.base, #t~mem302.offset; [2025-02-08 01:52:01,405 INFO L? ?]: Removed 57 outVars from TransFormulas that were not future-live. [2025-02-08 01:52:01,406 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:52:01,417 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:52:01,417 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:52:01,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:52:01 BoogieIcfgContainer [2025-02-08 01:52:01,419 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:52:01,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:52:01,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:52:01,426 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:52:01,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:51:58" (1/3) ... [2025-02-08 01:52:01,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142f7e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:52:01, skipping insertion in model container [2025-02-08 01:52:01,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:52:00" (2/3) ... [2025-02-08 01:52:01,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142f7e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:52:01, skipping insertion in model container [2025-02-08 01:52:01,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:52:01" (3/3) ... [2025-02-08 01:52:01,431 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_linked_list_back_harness.i [2025-02-08 01:52:01,445 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:52:01,447 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_linked_list_back_harness.i that has 9 procedures, 93 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-02-08 01:52:01,509 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:52:01,518 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;@5f3785b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:52:01,520 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:52:01,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 58 states have (on average 1.293103448275862) internal successors, (75), 60 states have internal predecessors, (75), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-02-08 01:52:01,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-08 01:52:01,535 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:52:01,537 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2025-02-08 01:52:01,537 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:52:01,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:52:01,544 INFO L85 PathProgramCache]: Analyzing trace with hash -466351013, now seen corresponding path program 1 times [2025-02-08 01:52:01,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:52:01,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859889214] [2025-02-08 01:52:01,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:01,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:52:01,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-08 01:52:01,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-08 01:52:01,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:01,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2025-02-08 01:52:02,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:52:02,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859889214] [2025-02-08 01:52:02,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859889214] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:52:02,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133758842] [2025-02-08 01:52:02,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:02,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:52:02,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:52:02,025 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 01:52:02,028 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 01:52:02,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-08 01:52:02,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-08 01:52:02,256 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:02,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:02,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:52:02,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:52:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2025-02-08 01:52:02,300 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:52:02,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133758842] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:52:02,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:52:02,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:52:02,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793178812] [2025-02-08 01:52:02,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:52:02,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:52:02,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:52:02,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:52:02,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:52:02,333 INFO L87 Difference]: Start difference. First operand has 93 states, 58 states have (on average 1.293103448275862) internal successors, (75), 60 states have internal predecessors, (75), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-08 01:52:02,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:52:02,375 INFO L93 Difference]: Finished difference Result 179 states and 253 transitions. [2025-02-08 01:52:02,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:52:02,379 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 83 [2025-02-08 01:52:02,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:52:02,389 INFO L225 Difference]: With dead ends: 179 [2025-02-08 01:52:02,389 INFO L226 Difference]: Without dead ends: 83 [2025-02-08 01:52:02,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 84 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 01:52:02,399 INFO L435 NwaCegarLoop]: 121 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, 121 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 01:52:02,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:52:02,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2025-02-08 01:52:02,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2025-02-08 01:52:02,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 51 states have (on average 1.196078431372549) internal successors, (61), 52 states have internal predecessors, (61), 23 states have call successors, (23), 8 states have call predecessors, (23), 8 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-02-08 01:52:02,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 106 transitions. [2025-02-08 01:52:02,458 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 106 transitions. Word has length 83 [2025-02-08 01:52:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:52:02,460 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 106 transitions. [2025-02-08 01:52:02,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-08 01:52:02,461 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 106 transitions. [2025-02-08 01:52:02,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-08 01:52:02,467 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:52:02,467 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2025-02-08 01:52:02,479 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 01:52:02,668 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 01:52:02,669 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:52:02,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:52:02,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1485800413, now seen corresponding path program 1 times [2025-02-08 01:52:02,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:52:02,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758860557] [2025-02-08 01:52:02,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:02,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:52:02,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-08 01:52:02,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-08 01:52:02,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:02,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:03,556 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-08 01:52:03,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:52:03,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758860557] [2025-02-08 01:52:03,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758860557] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:52:03,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584911535] [2025-02-08 01:52:03,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:03,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:52:03,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:52:03,561 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 01:52:03,563 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 01:52:03,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-08 01:52:03,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-08 01:52:03,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:03,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:03,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 58 conjuncts are in the unsatisfiable core [2025-02-08 01:52:03,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:52:03,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2025-02-08 01:52:03,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2025-02-08 01:52:05,888 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 44 proven. 16 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-08 01:52:05,888 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 01:52:18,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 80 [2025-02-08 01:52:18,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:52:18,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:52:18,899 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 01:52:19,022 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-08 01:52:19,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584911535] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 01:52:19,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 01:52:19,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [6, 16] total 33 [2025-02-08 01:52:19,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037545733] [2025-02-08 01:52:19,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:52:19,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-08 01:52:19,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:52:19,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-08 01:52:19,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=948, Unknown=3, NotChecked=0, Total=1056 [2025-02-08 01:52:19,028 INFO L87 Difference]: Start difference. First operand 83 states and 106 transitions. Second operand has 17 states, 15 states have (on average 2.6) internal successors, (39), 13 states have internal predecessors, (39), 7 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2025-02-08 01:52:19,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:52:19,668 INFO L93 Difference]: Finished difference Result 149 states and 195 transitions. [2025-02-08 01:52:19,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 01:52:19,669 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.6) internal successors, (39), 13 states have internal predecessors, (39), 7 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 83 [2025-02-08 01:52:19,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:52:19,670 INFO L225 Difference]: With dead ends: 149 [2025-02-08 01:52:19,670 INFO L226 Difference]: Without dead ends: 84 [2025-02-08 01:52:19,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 131 SyntacticMatches, 8 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=115, Invalid=1072, Unknown=3, NotChecked=0, Total=1190 [2025-02-08 01:52:19,672 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 4 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 01:52:19,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1323 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 01:52:19,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2025-02-08 01:52:19,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2025-02-08 01:52:19,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 23 states have call successors, (23), 8 states have call predecessors, (23), 8 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-02-08 01:52:19,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 107 transitions. [2025-02-08 01:52:19,689 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 107 transitions. Word has length 83 [2025-02-08 01:52:19,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:52:19,690 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 107 transitions. [2025-02-08 01:52:19,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.6) internal successors, (39), 13 states have internal predecessors, (39), 7 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2025-02-08 01:52:19,690 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 107 transitions. [2025-02-08 01:52:19,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-08 01:52:19,691 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:52:19,691 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2025-02-08 01:52:19,701 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 01:52:19,891 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 01:52:19,892 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:52:19,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:52:19,892 INFO L85 PathProgramCache]: Analyzing trace with hash -623945750, now seen corresponding path program 1 times [2025-02-08 01:52:19,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:52:19,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366919670] [2025-02-08 01:52:19,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:19,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:52:19,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-08 01:52:19,972 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-08 01:52:19,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:19,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:20,373 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-02-08 01:52:20,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:52:20,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366919670] [2025-02-08 01:52:20,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366919670] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:52:20,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621779999] [2025-02-08 01:52:20,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:20,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:52:20,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:52:20,377 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 01:52:20,379 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 01:52:20,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-08 01:52:20,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-08 01:52:20,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:20,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:20,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 54 conjuncts are in the unsatisfiable core [2025-02-08 01:52:20,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:52:20,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 01:52:20,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2025-02-08 01:52:20,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2025-02-08 01:52:20,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:52:20,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2025-02-08 01:52:20,781 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-02-08 01:52:20,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2025-02-08 01:52:20,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2025-02-08 01:52:20,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:52:20,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:52:20,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2025-02-08 01:52:20,821 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2025-02-08 01:52:20,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 29 [2025-02-08 01:52:20,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:52:20,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:52:20,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 10 [2025-02-08 01:52:20,882 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 01:52:20,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 01:52:20,974 INFO L349 Elim1Store]: treesize reduction 42, result has 20.8 percent of original size [2025-02-08 01:52:20,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 124 treesize of output 126 [2025-02-08 01:52:20,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:52:20,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:52:20,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:52:20,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 102 [2025-02-08 01:52:21,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 01:52:21,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 35 [2025-02-08 01:52:21,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 13 [2025-02-08 01:52:21,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 26 [2025-02-08 01:52:23,291 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-08 01:52:23,291 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 01:52:23,849 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 01:52:23,850 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 01:52:23,938 INFO L349 Elim1Store]: treesize reduction 86, result has 45.2 percent of original size [2025-02-08 01:52:23,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 173 treesize of output 202 [2025-02-08 01:52:23,960 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 01:52:23,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 222 treesize of output 222 [2025-02-08 01:52:23,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 177 [2025-02-08 01:52:23,982 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 01:52:23,983 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 01:52:24,047 INFO L349 Elim1Store]: treesize reduction 86, result has 45.2 percent of original size [2025-02-08 01:52:24,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 249 treesize of output 278 [2025-02-08 01:52:24,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 01:52:24,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 352 treesize of output 328 [2025-02-08 01:52:24,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 287 treesize of output 275 [2025-02-08 01:52:24,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2025-02-08 01:52:24,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2025-02-08 01:52:25,093 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 01:52:25,094 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 01:52:25,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 01:52:25,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 403 treesize of output 411 [2025-02-08 01:52:26,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 01:52:26,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 472 treesize of output 420 [2025-02-08 01:52:26,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621779999] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:52:26,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 01:52:26,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 12] total 17 [2025-02-08 01:52:26,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923635748] [2025-02-08 01:52:26,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 01:52:26,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-08 01:52:26,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:52:26,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-08 01:52:26,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=557, Unknown=19, NotChecked=0, Total=650 [2025-02-08 01:52:26,913 INFO L87 Difference]: Start difference. First operand 84 states and 107 transitions. Second operand has 17 states, 16 states have (on average 4.875) internal successors, (78), 15 states have internal predecessors, (78), 7 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-02-08 01:52:28,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:52:28,032 INFO L93 Difference]: Finished difference Result 139 states and 173 transitions. [2025-02-08 01:52:28,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-08 01:52:28,032 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.875) internal successors, (78), 15 states have internal predecessors, (78), 7 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 84 [2025-02-08 01:52:28,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:52:28,033 INFO L225 Difference]: With dead ends: 139 [2025-02-08 01:52:28,033 INFO L226 Difference]: Without dead ends: 0 [2025-02-08 01:52:28,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 125 SyntacticMatches, 15 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=207, Invalid=1574, Unknown=25, NotChecked=0, Total=1806 [2025-02-08 01:52:28,035 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 63 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 01:52:28,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 304 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 01:52:28,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-08 01:52:28,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-08 01:52:28,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:52:28,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-08 01:52:28,038 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2025-02-08 01:52:28,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:52:28,038 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 01:52:28,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.875) internal successors, (78), 15 states have internal predecessors, (78), 7 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-02-08 01:52:28,038 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-08 01:52:28,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-08 01:52:28,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-08 01:52:28,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 01:52:28,243 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 01:52:28,245 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 01:52:28,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-08 01:52:29,277 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:52:29,286 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~list!base [2025-02-08 01:52:29,287 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#list~0!base [2025-02-08 01:52:29,288 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2025-02-08 01:52:29,288 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2025-02-08 01:52:29,289 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~list!offset [2025-02-08 01:52:29,289 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#list~0!offset [2025-02-08 01:52:29,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:52:29 BoogieIcfgContainer [2025-02-08 01:52:29,290 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:52:29,291 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:52:29,291 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:52:29,292 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:52:29,292 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:52:01" (3/4) ... [2025-02-08 01:52:29,294 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:52:29,300 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_next_is_valid [2025-02-08 01:52:29,300 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2025-02-08 01:52:29,300 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_prev_is_valid [2025-02-08 01:52:29,301 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_back [2025-02-08 01:52:29,301 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-02-08 01:52:29,301 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-02-08 01:52:29,301 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_is_valid [2025-02-08 01:52:29,301 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_empty [2025-02-08 01:52:29,306 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-02-08 01:52:29,307 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 01:52:29,307 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 01:52:29,307 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 01:52:29,406 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:52:29,407 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:52:29,407 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:52:29,408 INFO L158 Benchmark]: Toolchain (without parser) took 30600.75ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 106.2MB in the beginning and 225.0MB in the end (delta: -118.8MB). Peak memory consumption was 85.7MB. Max. memory is 16.1GB. [2025-02-08 01:52:29,408 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 226.5MB. Free memory is still 146.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:52:29,408 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1746.74ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 48.5MB in the end (delta: 57.6MB). Peak memory consumption was 86.2MB. Max. memory is 16.1GB. [2025-02-08 01:52:29,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.17ms. Allocated memory is still 142.6MB. Free memory was 48.5MB in the beginning and 99.4MB in the end (delta: -50.9MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2025-02-08 01:52:29,409 INFO L158 Benchmark]: Boogie Preprocessor took 85.11ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 95.6MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:52:29,409 INFO L158 Benchmark]: IcfgBuilder took 644.22ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 68.1MB in the end (delta: 27.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 01:52:29,410 INFO L158 Benchmark]: TraceAbstraction took 27868.80ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 67.4MB in the beginning and 233.2MB in the end (delta: -165.9MB). Peak memory consumption was 142.4MB. Max. memory is 16.1GB. [2025-02-08 01:52:29,410 INFO L158 Benchmark]: Witness Printer took 115.59ms. Allocated memory is still 352.3MB. Free memory was 233.2MB in the beginning and 225.0MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:52:29,412 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 226.5MB. Free memory is still 146.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1746.74ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 48.5MB in the end (delta: 57.6MB). Peak memory consumption was 86.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 133.17ms. Allocated memory is still 142.6MB. Free memory was 48.5MB in the beginning and 99.4MB in the end (delta: -50.9MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.11ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 95.6MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 644.22ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 68.1MB in the end (delta: 27.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 27868.80ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 67.4MB in the beginning and 233.2MB in the end (delta: -165.9MB). Peak memory consumption was 142.4MB. Max. memory is 16.1GB. * Witness Printer took 115.59ms. Allocated memory is still 352.3MB. Free memory was 233.2MB in the beginning and 225.0MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~list!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#list~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~list!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#list~0!offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.8s, OverallIterations: 3, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 1748 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1497 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 674 IncrementalHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 251 mSDtfsCounter, 674 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 437 GetRequests, 340 SyntacticMatches, 23 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 15.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.0s InterpolantComputationTime, 500 NumberOfCodeBlocks, 500 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 576 ConstructedInterpolants, 115 QuantifiedInterpolants, 6867 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1095 ConjunctsInSsa, 113 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 478/541 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 01:52:29,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE