./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness_negated.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 cddb8be3317e9d6bf2e67633b62d21b872e62a4205c204f682a628045c0c7f11 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:28:12,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:28:12,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:28:12,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:28:12,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:28:12,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:28:12,964 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:28:12,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:28:12,964 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:28:12,965 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:28:12,965 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:28:12,965 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:28:12,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:28:12,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:28:12,965 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:28:12,965 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:28:12,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:28:12,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:28:12,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:28:12,966 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:28:12,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:28:12,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:28:12,966 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:28:12,966 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:28:12,966 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:28:12,966 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:28:12,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:28:12,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:28:12,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:28:12,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:28:12,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:28:12,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:28:12,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:28:12,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:28:12,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:28:12,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:28:12,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:28:12,967 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:28:12,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:28:12,968 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:28:12,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:28:12,968 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:28:12,968 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:28:12,968 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:28:12,968 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:28:12,968 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 -> cddb8be3317e9d6bf2e67633b62d21b872e62a4205c204f682a628045c0c7f11 [2025-01-09 17:28:13,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:28:13,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:28:13,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:28:13,199 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:28:13,199 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:28:13,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness_negated.i [2025-01-09 17:28:14,408 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/468eb42c7/0f8b69cdb2754f52af3f6e90abd2403d/FLAG9430430f1 [2025-01-09 17:28:14,845 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:28:14,847 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_top_harness_negated.i [2025-01-09 17:28:14,873 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/468eb42c7/0f8b69cdb2754f52af3f6e90abd2403d/FLAG9430430f1 [2025-01-09 17:28:14,965 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/468eb42c7/0f8b69cdb2754f52af3f6e90abd2403d [2025-01-09 17:28:14,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:28:14,968 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:28:14,969 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:28:14,969 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:28:14,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:28:14,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:28:14" (1/1) ... [2025-01-09 17:28:14,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a544789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:14, skipping insertion in model container [2025-01-09 17:28:14,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:28:14" (1/1) ... [2025-01-09 17:28:15,035 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:28:15,205 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_priority_queue_top_harness_negated.i[4496,4509] [2025-01-09 17:28:15,211 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_priority_queue_top_harness_negated.i[4556,4569] [2025-01-09 17:28:15,800 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:15,800 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:15,801 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:15,801 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:15,801 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:15,809 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:15,809 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:15,810 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:15,810 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,112 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,113 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:28:16,191 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:28:16,202 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_priority_queue_top_harness_negated.i[4496,4509] [2025-01-09 17:28:16,203 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_priority_queue_top_harness_negated.i[4556,4569] [2025-01-09 17:28:16,263 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,264 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,264 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,264 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,265 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,269 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,270 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,270 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,271 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,357 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,358 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:28:16,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7671-7682] [2025-01-09 17:28:16,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:28:16,525 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:28:16,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16 WrapperNode [2025-01-09 17:28:16,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:28:16,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:28:16,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:28:16,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:28:16,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (1/1) ... [2025-01-09 17:28:16,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (1/1) ... [2025-01-09 17:28:16,622 INFO L138 Inliner]: procedures = 678, calls = 1548, calls flagged for inlining = 54, calls inlined = 10, statements flattened = 726 [2025-01-09 17:28:16,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:28:16,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:28:16,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:28:16,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:28:16,635 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (1/1) ... [2025-01-09 17:28:16,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (1/1) ... [2025-01-09 17:28:16,642 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (1/1) ... [2025-01-09 17:28:16,693 INFO L175 MemorySlicer]: Split 340 memory accesses to 7 slices as follows [82, 238, 2, 6, 2, 7, 3]. 70 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [10, 6, 2, 0, 1, 5, 1]. The 253 writes are split as follows [17, 232, 0, 2, 1, 0, 1]. [2025-01-09 17:28:16,694 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (1/1) ... [2025-01-09 17:28:16,695 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (1/1) ... [2025-01-09 17:28:16,728 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (1/1) ... [2025-01-09 17:28:16,730 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (1/1) ... [2025-01-09 17:28:16,737 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (1/1) ... [2025-01-09 17:28:16,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (1/1) ... [2025-01-09 17:28:16,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (1/1) ... [2025-01-09 17:28:16,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:28:16,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:28:16,768 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:28:16,768 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:28:16,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (1/1) ... [2025-01-09 17:28:16,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:28:16,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:28:16,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 17:28:16,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 17:28:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-01-09 17:28:16,829 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-01-09 17:28:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:28:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-01-09 17:28:16,830 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-01-09 17:28:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 17:28:16,830 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 17:28:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:28:16,831 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:28:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:28:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:28:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:28:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:28:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:28:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:28:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 17:28:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:28:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:28:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:28:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:28:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:28:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:28:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 17:28:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:28:16,833 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:28:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:28:16,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:28:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:28:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:28:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-01-09 17:28:16,833 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-01-09 17:28:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:28:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:28:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:28:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:28:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:28:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:28:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 17:28:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:28:16,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:28:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:28:16,834 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:28:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-01-09 17:28:16,834 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-01-09 17:28:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 17:28:16,835 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 17:28:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:28:16,835 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:28:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:28:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:28:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:28:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:28:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:28:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:28:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 17:28:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-01-09 17:28:16,835 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-01-09 17:28:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-01-09 17:28:16,835 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-01-09 17:28:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:28:16,836 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:28:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:28:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:28:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:28:16,837 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:28:16,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:28:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:28:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:28:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:28:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:28:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:28:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:28:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 17:28:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2025-01-09 17:28:16,838 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2025-01-09 17:28:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-01-09 17:28:16,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-01-09 17:28:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:28:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:28:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:28:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:28:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:28:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:28:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 17:28:17,112 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:28:17,114 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:28:22,824 INFO L? ?]: Removed 160 outVars from TransFormulas that were not future-live. [2025-01-09 17:28:22,824 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:28:22,835 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:28:22,838 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 17:28:22,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:28:22 BoogieIcfgContainer [2025-01-09 17:28:22,839 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:28:22,841 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:28:22,841 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:28:22,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:28:22,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:28:14" (1/3) ... [2025-01-09 17:28:22,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652cc09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:28:22, skipping insertion in model container [2025-01-09 17:28:22,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:28:16" (2/3) ... [2025-01-09 17:28:22,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652cc09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:28:22, skipping insertion in model container [2025-01-09 17:28:22,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:28:22" (3/3) ... [2025-01-09 17:28:22,846 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_top_harness_negated.i [2025-01-09 17:28:22,857 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:28:22,859 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_top_harness_negated.i that has 19 procedures, 206 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 17:28:22,923 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:28:22,936 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;@28256e4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:28:22,937 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:28:22,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 130 states have (on average 1.2153846153846153) internal successors, (158), 130 states have internal predecessors, (158), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2025-01-09 17:28:22,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-01-09 17:28:22,953 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:22,954 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:28:22,954 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:22,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:22,959 INFO L85 PathProgramCache]: Analyzing trace with hash -266601269, now seen corresponding path program 1 times [2025-01-09 17:28:22,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:22,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930929885] [2025-01-09 17:28:22,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:22,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:27,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 17:28:27,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 17:28:27,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:27,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:28,175 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-01-09 17:28:28,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:28,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930929885] [2025-01-09 17:28:28,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930929885] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:28:28,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372043043] [2025-01-09 17:28:28,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:28,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:28,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:28:28,180 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:28:28,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 17:28:32,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 17:28:33,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 17:28:33,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:33,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:33,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 4575 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:28:33,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:28:33,170 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-01-09 17:28:33,171 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:28:33,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372043043] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:33,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:28:33,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:28:33,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740918538] [2025-01-09 17:28:33,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:33,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:28:33,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:33,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:28:33,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:28:33,194 INFO L87 Difference]: Start difference. First operand has 206 states, 130 states have (on average 1.2153846153846153) internal successors, (158), 130 states have internal predecessors, (158), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-01-09 17:28:33,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:33,235 INFO L93 Difference]: Finished difference Result 389 states and 543 transitions. [2025-01-09 17:28:33,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:28:33,238 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 148 [2025-01-09 17:28:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:33,245 INFO L225 Difference]: With dead ends: 389 [2025-01-09 17:28:33,245 INFO L226 Difference]: Without dead ends: 201 [2025-01-09 17:28:33,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:28:33,251 INFO L435 NwaCegarLoop]: 268 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, 268 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 [2025-01-09 17:28:33,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:28:33,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2025-01-09 17:28:33,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2025-01-09 17:28:33,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 125 states have (on average 1.2) internal successors, (150), 126 states have internal predecessors, (150), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2025-01-09 17:28:33,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 263 transitions. [2025-01-09 17:28:33,302 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 263 transitions. Word has length 148 [2025-01-09 17:28:33,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:33,304 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 263 transitions. [2025-01-09 17:28:33,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2025-01-09 17:28:33,304 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 263 transitions. [2025-01-09 17:28:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-01-09 17:28:33,310 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:33,310 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:28:33,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 17:28:33,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 17:28:33,511 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:33,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:33,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2040385463, now seen corresponding path program 1 times [2025-01-09 17:28:33,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:33,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275497751] [2025-01-09 17:28:33,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:33,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:37,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 17:28:37,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 17:28:37,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:37,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:38,735 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2025-01-09 17:28:38,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:38,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275497751] [2025-01-09 17:28:38,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275497751] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:38,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:28:38,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:28:38,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304241446] [2025-01-09 17:28:38,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:38,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:28:38,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:38,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:28:38,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:28:38,738 INFO L87 Difference]: Start difference. First operand 201 states and 263 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-01-09 17:28:39,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:39,214 INFO L93 Difference]: Finished difference Result 353 states and 462 transitions. [2025-01-09 17:28:39,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:28:39,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 148 [2025-01-09 17:28:39,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:39,217 INFO L225 Difference]: With dead ends: 353 [2025-01-09 17:28:39,217 INFO L226 Difference]: Without dead ends: 201 [2025-01-09 17:28:39,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:28:39,219 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 19 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:39,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 938 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 17:28:39,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2025-01-09 17:28:39,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2025-01-09 17:28:39,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 125 states have (on average 1.192) internal successors, (149), 126 states have internal predecessors, (149), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2025-01-09 17:28:39,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 262 transitions. [2025-01-09 17:28:39,232 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 262 transitions. Word has length 148 [2025-01-09 17:28:39,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:39,234 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 262 transitions. [2025-01-09 17:28:39,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-01-09 17:28:39,234 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 262 transitions. [2025-01-09 17:28:39,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-01-09 17:28:39,236 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:39,237 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 3, 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] [2025-01-09 17:28:39,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 17:28:39,237 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:39,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:39,237 INFO L85 PathProgramCache]: Analyzing trace with hash 142490113, now seen corresponding path program 1 times [2025-01-09 17:28:39,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:39,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595239032] [2025-01-09 17:28:39,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:39,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:42,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 17:28:43,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 17:28:43,079 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:43,079 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:44,408 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2025-01-09 17:28:44,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:44,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595239032] [2025-01-09 17:28:44,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595239032] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:28:44,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002027802] [2025-01-09 17:28:44,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:44,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:44,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:28:44,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:28:44,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 17:28:48,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 17:28:49,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 17:28:49,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:49,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:49,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 4625 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 17:28:49,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:28:50,551 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-01-09 17:28:50,551 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:28:50,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002027802] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:50,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:28:50,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-01-09 17:28:50,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133827194] [2025-01-09 17:28:50,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:50,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:28:50,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:50,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:28:50,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 17:28:50,553 INFO L87 Difference]: Start difference. First operand 201 states and 262 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-01-09 17:28:52,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:52,345 INFO L93 Difference]: Finished difference Result 372 states and 494 transitions. [2025-01-09 17:28:52,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 17:28:52,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 156 [2025-01-09 17:28:52,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:52,350 INFO L225 Difference]: With dead ends: 372 [2025-01-09 17:28:52,350 INFO L226 Difference]: Without dead ends: 203 [2025-01-09 17:28:52,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 17:28:52,351 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 46 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:52,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1419 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-09 17:28:52,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2025-01-09 17:28:52,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2025-01-09 17:28:52,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 126 states have (on average 1.1904761904761905) internal successors, (150), 128 states have internal predecessors, (150), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2025-01-09 17:28:52,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 269 transitions. [2025-01-09 17:28:52,368 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 269 transitions. Word has length 156 [2025-01-09 17:28:52,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:52,369 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 269 transitions. [2025-01-09 17:28:52,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-01-09 17:28:52,369 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 269 transitions. [2025-01-09 17:28:52,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2025-01-09 17:28:52,373 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:52,373 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:28:52,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 17:28:52,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:28:52,574 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:52,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:52,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1371058429, now seen corresponding path program 1 times [2025-01-09 17:28:52,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:52,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605812437] [2025-01-09 17:28:52,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:52,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:28:56,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-01-09 17:28:56,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-01-09 17:28:56,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:28:56,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:28:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2025-01-09 17:28:57,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:28:57,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605812437] [2025-01-09 17:28:57,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605812437] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:28:57,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:28:57,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 17:28:57,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660886012] [2025-01-09 17:28:57,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:28:57,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:28:57,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:28:57,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:28:57,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:28:57,809 INFO L87 Difference]: Start difference. First operand 203 states and 269 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2025-01-09 17:28:58,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:28:58,715 INFO L93 Difference]: Finished difference Result 358 states and 475 transitions. [2025-01-09 17:28:58,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:28:58,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 171 [2025-01-09 17:28:58,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:28:58,719 INFO L225 Difference]: With dead ends: 358 [2025-01-09 17:28:58,719 INFO L226 Difference]: Without dead ends: 203 [2025-01-09 17:28:58,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:28:58,722 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 36 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-09 17:28:58,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1132 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-09 17:28:58,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2025-01-09 17:28:58,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2025-01-09 17:28:58,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 126 states have (on average 1.1825396825396826) internal successors, (149), 128 states have internal predecessors, (149), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2025-01-09 17:28:58,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 268 transitions. [2025-01-09 17:28:58,737 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 268 transitions. Word has length 171 [2025-01-09 17:28:58,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:28:58,738 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 268 transitions. [2025-01-09 17:28:58,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2025-01-09 17:28:58,738 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 268 transitions. [2025-01-09 17:28:58,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 17:28:58,739 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:28:58,739 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:28:58,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 17:28:58,740 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:28:58,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:28:58,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1209261736, now seen corresponding path program 1 times [2025-01-09 17:28:58,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:28:58,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50502227] [2025-01-09 17:28:58,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:28:58,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:29:02,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 17:29:02,410 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 17:29:02,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:29:02,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:29:03,745 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2025-01-09 17:29:03,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:29:03,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50502227] [2025-01-09 17:29:03,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50502227] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:29:03,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772243455] [2025-01-09 17:29:03,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:29:03,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:29:03,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:29:03,748 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:29:03,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 17:29:08,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 17:29:08,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 17:29:08,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:29:08,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:29:08,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 4819 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 17:29:08,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:29:10,479 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-01-09 17:29:10,479 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:29:10,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772243455] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:29:10,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:29:10,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2025-01-09 17:29:10,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137265908] [2025-01-09 17:29:10,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:29:10,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 17:29:10,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:29:10,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 17:29:10,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2025-01-09 17:29:10,482 INFO L87 Difference]: Start difference. First operand 203 states and 268 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2025-01-09 17:29:12,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:29:12,653 INFO L93 Difference]: Finished difference Result 371 states and 492 transitions. [2025-01-09 17:29:12,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 17:29:12,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 187 [2025-01-09 17:29:12,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:29:12,656 INFO L225 Difference]: With dead ends: 371 [2025-01-09 17:29:12,656 INFO L226 Difference]: Without dead ends: 203 [2025-01-09 17:29:12,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2025-01-09 17:29:12,658 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 68 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:29:12,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 1505 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-01-09 17:29:12,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2025-01-09 17:29:12,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2025-01-09 17:29:12,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 126 states have (on average 1.1825396825396826) internal successors, (149), 128 states have internal predecessors, (149), 57 states have call successors, (57), 18 states have call predecessors, (57), 19 states have return successors, (61), 56 states have call predecessors, (61), 56 states have call successors, (61) [2025-01-09 17:29:12,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 267 transitions. [2025-01-09 17:29:12,668 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 267 transitions. Word has length 187 [2025-01-09 17:29:12,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:29:12,669 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 267 transitions. [2025-01-09 17:29:12,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2025-01-09 17:29:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 267 transitions. [2025-01-09 17:29:12,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2025-01-09 17:29:12,670 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:29:12,671 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 17:29:12,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 17:29:12,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:29:12,871 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:29:12,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:29:12,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1749357630, now seen corresponding path program 2 times [2025-01-09 17:29:12,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:29:12,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268720679] [2025-01-09 17:29:12,872 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 17:29:12,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:29:16,805 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 202 statements into 2 equivalence classes. [2025-01-09 17:29:16,901 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 202 statements. [2025-01-09 17:29:16,901 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 17:29:16,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:29:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2025-01-09 17:29:18,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:29:18,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268720679] [2025-01-09 17:29:18,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268720679] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:29:18,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:29:18,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 17:29:18,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334688370] [2025-01-09 17:29:18,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:29:18,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:29:18,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:29:18,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:29:18,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:29:18,813 INFO L87 Difference]: Start difference. First operand 203 states and 267 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2025-01-09 17:29:19,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:29:19,114 INFO L93 Difference]: Finished difference Result 211 states and 275 transitions. [2025-01-09 17:29:19,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:29:19,115 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 202 [2025-01-09 17:29:19,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:29:19,116 INFO L225 Difference]: With dead ends: 211 [2025-01-09 17:29:19,116 INFO L226 Difference]: Without dead ends: 209 [2025-01-09 17:29:19,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:29:19,117 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 3 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 17:29:19,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1278 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 17:29:19,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2025-01-09 17:29:19,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 208. [2025-01-09 17:29:19,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 129 states have (on average 1.178294573643411) internal successors, (152), 131 states have internal predecessors, (152), 58 states have call successors, (58), 19 states have call predecessors, (58), 20 states have return successors, (62), 57 states have call predecessors, (62), 57 states have call successors, (62) [2025-01-09 17:29:19,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 272 transitions. [2025-01-09 17:29:19,128 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 272 transitions. Word has length 202 [2025-01-09 17:29:19,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:29:19,129 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 272 transitions. [2025-01-09 17:29:19,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2025-01-09 17:29:19,129 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 272 transitions. [2025-01-09 17:29:19,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-01-09 17:29:19,131 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:29:19,131 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-01-09 17:29:19,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 17:29:19,131 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:29:19,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:29:19,132 INFO L85 PathProgramCache]: Analyzing trace with hash 480431414, now seen corresponding path program 3 times [2025-01-09 17:29:19,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:29:19,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625962872] [2025-01-09 17:29:19,132 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 17:29:19,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:29:22,708 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 217 statements into 7 equivalence classes. [2025-01-09 17:29:23,444 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 64 of 217 statements. [2025-01-09 17:29:23,445 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-09 17:29:23,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:29:25,317 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-01-09 17:29:25,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:29:25,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625962872] [2025-01-09 17:29:25,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625962872] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:29:25,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541890574] [2025-01-09 17:29:25,317 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 17:29:25,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:29:25,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:29:25,320 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:29:25,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 17:29:29,778 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 217 statements into 7 equivalence classes.