./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 14628bdc2b5dee98fd531ba30b57569c060efa6ead93e7c2de47c8a88cf53b5a --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 16:57:35,514 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 16:57:35,573 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 16:57:35,577 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 16:57:35,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 16:57:35,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 16:57:35,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 16:57:35,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 16:57:35,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 16:57:35,603 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 16:57:35,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 16:57:35,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 16:57:35,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 16:57:35,604 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 16:57:35,605 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 16:57:35,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 16:57:35,605 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 16:57:35,605 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 16:57:35,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 16:57:35,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 16:57:35,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 16:57:35,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 16:57:35,606 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 16:57:35,606 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 16:57:35,606 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 16:57:35,606 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 16:57:35,606 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:57:35,606 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:57:35,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:57:35,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:57:35,606 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 16:57:35,607 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 16:57:35,607 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 16:57:35,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 16:57:35,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:57:35,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 16:57:35,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 16:57:35,607 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 16:57:35,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 16:57:35,608 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 16:57:35,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 16:57:35,608 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 16:57:35,608 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 16:57:35,608 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 16:57:35,608 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 16:57:35,608 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14628bdc2b5dee98fd531ba30b57569c060efa6ead93e7c2de47c8a88cf53b5a [2025-01-09 16:57:35,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 16:57:35,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 16:57:35,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 16:57:35,848 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 16:57:35,848 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 16:57:35,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2025-01-09 16:57:37,093 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2f02e90af/c7218121c13f4a8bbc99e2a972aabd49/FLAGe2c6b3b4a [2025-01-09 16:57:37,545 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 16:57:37,546 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2025-01-09 16:57:37,571 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2f02e90af/c7218121c13f4a8bbc99e2a972aabd49/FLAGe2c6b3b4a [2025-01-09 16:57:37,583 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2f02e90af/c7218121c13f4a8bbc99e2a972aabd49 [2025-01-09 16:57:37,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 16:57:37,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 16:57:37,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 16:57:37,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 16:57:37,591 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 16:57:37,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:57:37" (1/1) ... [2025-01-09 16:57:37,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e338290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:37, skipping insertion in model container [2025-01-09 16:57:37,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:57:37" (1/1) ... [2025-01-09 16:57:37,643 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 16:57:37,824 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2025-01-09 16:57:37,831 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2025-01-09 16:57:38,352 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:38,353 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:38,353 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:38,353 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:38,354 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:38,376 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:38,377 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:38,379 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:38,379 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:38,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:38,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:38,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:38,388 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,020 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,029 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,079 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,080 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,080 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:57:39,110 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 16:57:39,123 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4495,4508] [2025-01-09 16:57:39,127 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i[4555,4568] [2025-01-09 16:57:39,187 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,187 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,187 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,192 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,193 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,193 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,194 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,194 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,195 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,195 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,195 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,251 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,255 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7770-7781] [2025-01-09 16:57:39,272 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,272 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,272 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 16:57:39,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 16:57:39,420 INFO L204 MainTranslator]: Completed translation [2025-01-09 16:57:39,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39 WrapperNode [2025-01-09 16:57:39,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 16:57:39,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 16:57:39,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 16:57:39,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 16:57:39,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (1/1) ... [2025-01-09 16:57:39,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (1/1) ... [2025-01-09 16:57:39,569 INFO L138 Inliner]: procedures = 680, calls = 1678, calls flagged for inlining = 50, calls inlined = 10, statements flattened = 850 [2025-01-09 16:57:39,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 16:57:39,569 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 16:57:39,570 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 16:57:39,570 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 16:57:39,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (1/1) ... [2025-01-09 16:57:39,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (1/1) ... [2025-01-09 16:57:39,589 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (1/1) ... [2025-01-09 16:57:39,652 INFO L175 MemorySlicer]: Split 332 memory accesses to 6 slices as follows [238, 2, 8, 6, 6, 72]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 5, 0, 1, 10]. The 241 writes are split as follows [232, 0, 0, 2, 1, 6]. [2025-01-09 16:57:39,653 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (1/1) ... [2025-01-09 16:57:39,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (1/1) ... [2025-01-09 16:57:39,690 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (1/1) ... [2025-01-09 16:57:39,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (1/1) ... [2025-01-09 16:57:39,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (1/1) ... [2025-01-09 16:57:39,706 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (1/1) ... [2025-01-09 16:57:39,709 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (1/1) ... [2025-01-09 16:57:39,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 16:57:39,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 16:57:39,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 16:57:39,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 16:57:39,722 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (1/1) ... [2025-01-09 16:57:39,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 16:57:39,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:57:39,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 16:57:39,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 16:57:39,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 16:57:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-01-09 16:57:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-01-09 16:57:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-01-09 16:57:39,783 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-01-09 16:57:39,783 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 16:57:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 16:57:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-01-09 16:57:39,784 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-01-09 16:57:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 16:57:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 16:57:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 16:57:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 16:57:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 16:57:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 16:57:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 16:57:39,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 16:57:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 16:57:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 16:57:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 16:57:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 16:57:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 16:57:39,785 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 16:57:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 16:57:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 16:57:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 16:57:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 16:57:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 16:57:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 16:57:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 16:57:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 16:57:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 16:57:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 16:57:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-01-09 16:57:39,786 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-01-09 16:57:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 16:57:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 16:57:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-01-09 16:57:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 16:57:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 16:57:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-01-09 16:57:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-01-09 16:57:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-01-09 16:57:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 16:57:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-01-09 16:57:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2025-01-09 16:57:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 16:57:39,789 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-01-09 16:57:39,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 16:57:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 16:57:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-01-09 16:57:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-01-09 16:57:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2025-01-09 16:57:39,791 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 16:57:39,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 16:57:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 16:57:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 16:57:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 16:57:39,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 16:57:40,083 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 16:57:40,086 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 16:57:45,891 INFO L? ?]: Removed 167 outVars from TransFormulas that were not future-live. [2025-01-09 16:57:45,891 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 16:57:45,900 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 16:57:45,900 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 16:57:45,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:57:45 BoogieIcfgContainer [2025-01-09 16:57:45,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 16:57:45,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 16:57:45,902 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 16:57:45,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 16:57:45,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:57:37" (1/3) ... [2025-01-09 16:57:45,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4678928b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:57:45, skipping insertion in model container [2025-01-09 16:57:45,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:57:39" (2/3) ... [2025-01-09 16:57:45,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4678928b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:57:45, skipping insertion in model container [2025-01-09 16:57:45,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:57:45" (3/3) ... [2025-01-09 16:57:45,911 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2025-01-09 16:57:45,925 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 16:57:45,926 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_set_at_harness.i that has 24 procedures, 288 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 16:57:45,967 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 16:57:45,979 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;@144b6d44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 16:57:45,980 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 16:57:45,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 288 states, 167 states have (on average 1.215568862275449) internal successors, (203), 169 states have internal predecessors, (203), 96 states have call successors, (96), 23 states have call predecessors, (96), 23 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2025-01-09 16:57:45,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-01-09 16:57:45,995 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:57:45,995 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:57:45,996 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:57:46,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:57:46,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1931342552, now seen corresponding path program 1 times [2025-01-09 16:57:46,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:57:46,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353226358] [2025-01-09 16:57:46,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:57:46,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:57:50,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 16:57:50,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 16:57:50,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:57:50,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:57:51,946 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2025-01-09 16:57:51,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:57:51,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353226358] [2025-01-09 16:57:51,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353226358] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:57:51,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631495566] [2025-01-09 16:57:51,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:57:51,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:57:51,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:57:51,957 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 16:57:51,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 16:57:56,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 16:57:56,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 16:57:56,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:57:56,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:57:56,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 4469 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 16:57:56,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:57:57,224 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2025-01-09 16:57:57,225 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:57:57,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631495566] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:57:57,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:57:57,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-01-09 16:57:57,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374311481] [2025-01-09 16:57:57,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:57:57,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 16:57:57,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:57:57,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 16:57:57,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 16:57:57,257 INFO L87 Difference]: Start difference. First operand has 288 states, 167 states have (on average 1.215568862275449) internal successors, (203), 169 states have internal predecessors, (203), 96 states have call successors, (96), 23 states have call predecessors, (96), 23 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2025-01-09 16:57:59,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:57:59,912 INFO L93 Difference]: Finished difference Result 571 states and 858 transitions. [2025-01-09 16:57:59,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 16:57:59,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 156 [2025-01-09 16:57:59,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:57:59,927 INFO L225 Difference]: With dead ends: 571 [2025-01-09 16:57:59,928 INFO L226 Difference]: Without dead ends: 285 [2025-01-09 16:57:59,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-01-09 16:57:59,933 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 408 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-01-09 16:57:59,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1260 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-01-09 16:57:59,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2025-01-09 16:57:59,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2025-01-09 16:57:59,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 164 states have (on average 1.2073170731707317) internal successors, (198), 167 states have internal predecessors, (198), 96 states have call successors, (96), 23 states have call predecessors, (96), 24 states have return successors, (111), 95 states have call predecessors, (111), 95 states have call successors, (111) [2025-01-09 16:57:59,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 405 transitions. [2025-01-09 16:57:59,989 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 405 transitions. Word has length 156 [2025-01-09 16:57:59,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:57:59,990 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 405 transitions. [2025-01-09 16:57:59,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2025-01-09 16:57:59,990 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 405 transitions. [2025-01-09 16:57:59,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-01-09 16:57:59,997 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:57:59,997 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 16:58:00,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 16:58:00,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 16:58:00,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:58:00,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:58:00,199 INFO L85 PathProgramCache]: Analyzing trace with hash 2015842466, now seen corresponding path program 1 times [2025-01-09 16:58:00,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:58:00,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718404720] [2025-01-09 16:58:00,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:58:00,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:58:04,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-01-09 16:58:04,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-01-09 16:58:04,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:58:04,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:58:06,289 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2025-01-09 16:58:06,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:58:06,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718404720] [2025-01-09 16:58:06,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718404720] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:58:06,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838244469] [2025-01-09 16:58:06,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:58:06,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:58:06,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:58:06,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 16:58:06,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 16:58:10,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-01-09 16:58:10,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-01-09 16:58:10,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:58:10,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:58:10,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 4723 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 16:58:10,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:58:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-01-09 16:58:12,436 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:58:12,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838244469] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:58:12,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:58:12,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2025-01-09 16:58:12,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114587655] [2025-01-09 16:58:12,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:58:12,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 16:58:12,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:58:12,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 16:58:12,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2025-01-09 16:58:12,438 INFO L87 Difference]: Start difference. First operand 285 states and 405 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2025-01-09 16:58:17,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:58:17,562 INFO L93 Difference]: Finished difference Result 514 states and 730 transitions. [2025-01-09 16:58:17,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 16:58:17,562 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 186 [2025-01-09 16:58:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:58:17,569 INFO L225 Difference]: With dead ends: 514 [2025-01-09 16:58:17,569 INFO L226 Difference]: Without dead ends: 285 [2025-01-09 16:58:17,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2025-01-09 16:58:17,575 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 464 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-01-09 16:58:17,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1622 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2025-01-09 16:58:17,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2025-01-09 16:58:17,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2025-01-09 16:58:17,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 164 states have (on average 1.2073170731707317) internal successors, (198), 167 states have internal predecessors, (198), 96 states have call successors, (96), 23 states have call predecessors, (96), 24 states have return successors, (107), 95 states have call predecessors, (107), 95 states have call successors, (107) [2025-01-09 16:58:17,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 401 transitions. [2025-01-09 16:58:17,623 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 401 transitions. Word has length 186 [2025-01-09 16:58:17,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:58:17,623 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 401 transitions. [2025-01-09 16:58:17,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2025-01-09 16:58:17,624 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 401 transitions. [2025-01-09 16:58:17,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2025-01-09 16:58:17,625 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:58:17,626 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:58:17,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 16:58:17,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:58:17,830 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:58:17,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:58:17,831 INFO L85 PathProgramCache]: Analyzing trace with hash 320849307, now seen corresponding path program 2 times [2025-01-09 16:58:17,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:58:17,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126620681] [2025-01-09 16:58:17,831 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 16:58:17,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:58:21,892 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 201 statements into 2 equivalence classes. [2025-01-09 16:58:22,036 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 201 statements. [2025-01-09 16:58:22,040 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 16:58:22,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:58:22,897 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2025-01-09 16:58:22,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:58:22,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126620681] [2025-01-09 16:58:22,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126620681] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:58:22,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:58:22,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 16:58:22,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667232540] [2025-01-09 16:58:22,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:58:22,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 16:58:22,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:58:22,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 16:58:22,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 16:58:22,899 INFO L87 Difference]: Start difference. First operand 285 states and 401 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2025-01-09 16:58:23,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:58:23,070 INFO L93 Difference]: Finished difference Result 496 states and 688 transitions. [2025-01-09 16:58:23,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 16:58:23,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 201 [2025-01-09 16:58:23,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:58:23,073 INFO L225 Difference]: With dead ends: 496 [2025-01-09 16:58:23,073 INFO L226 Difference]: Without dead ends: 290 [2025-01-09 16:58:23,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 16:58:23,074 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 0 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 16:58:23,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1534 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 16:58:23,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2025-01-09 16:58:23,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2025-01-09 16:58:23,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 168 states have (on average 1.2023809523809523) internal successors, (202), 171 states have internal predecessors, (202), 96 states have call successors, (96), 23 states have call predecessors, (96), 25 states have return successors, (109), 96 states have call predecessors, (109), 95 states have call successors, (109) [2025-01-09 16:58:23,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 407 transitions. [2025-01-09 16:58:23,090 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 407 transitions. Word has length 201 [2025-01-09 16:58:23,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:58:23,090 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 407 transitions. [2025-01-09 16:58:23,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2025-01-09 16:58:23,090 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 407 transitions. [2025-01-09 16:58:23,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2025-01-09 16:58:23,092 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:58:23,092 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:58:23,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 16:58:23,092 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:58:23,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:58:23,093 INFO L85 PathProgramCache]: Analyzing trace with hash 778665137, now seen corresponding path program 1 times [2025-01-09 16:58:23,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:58:23,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130362947] [2025-01-09 16:58:23,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:58:23,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:58:26,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes. [2025-01-09 16:58:26,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements. [2025-01-09 16:58:26,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:58:26,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:58:28,673 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2025-01-09 16:58:28,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:58:28,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130362947] [2025-01-09 16:58:28,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130362947] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:58:28,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813841511] [2025-01-09 16:58:28,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:58:28,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:58:28,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:58:28,676 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 16:58:28,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 16:58:32,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes. [2025-01-09 16:58:33,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements. [2025-01-09 16:58:33,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:58:33,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:58:33,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 4854 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 16:58:33,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:58:35,378 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-01-09 16:58:35,378 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:58:35,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813841511] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:58:35,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:58:35,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2025-01-09 16:58:35,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139504613] [2025-01-09 16:58:35,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:58:35,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 16:58:35,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:58:35,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 16:58:35,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2025-01-09 16:58:35,380 INFO L87 Difference]: Start difference. First operand 290 states and 407 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2025-01-09 16:58:41,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:58:41,135 INFO L93 Difference]: Finished difference Result 518 states and 724 transitions. [2025-01-09 16:58:41,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 16:58:41,136 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 207 [2025-01-09 16:58:41,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:58:41,139 INFO L225 Difference]: With dead ends: 518 [2025-01-09 16:58:41,143 INFO L226 Difference]: Without dead ends: 290 [2025-01-09 16:58:41,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2025-01-09 16:58:41,146 INFO L435 NwaCegarLoop]: 290 mSDtfsCounter, 500 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2025-01-09 16:58:41,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 1848 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2025-01-09 16:58:41,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2025-01-09 16:58:41,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2025-01-09 16:58:41,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 168 states have (on average 1.2023809523809523) internal successors, (202), 171 states have internal predecessors, (202), 96 states have call successors, (96), 23 states have call predecessors, (96), 25 states have return successors, (103), 96 states have call predecessors, (103), 95 states have call successors, (103) [2025-01-09 16:58:41,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 401 transitions. [2025-01-09 16:58:41,180 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 401 transitions. Word has length 207 [2025-01-09 16:58:41,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:58:41,181 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 401 transitions. [2025-01-09 16:58:41,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2025-01-09 16:58:41,182 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 401 transitions. [2025-01-09 16:58:41,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2025-01-09 16:58:41,188 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:58:41,188 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:58:41,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 16:58:41,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:58:41,389 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:58:41,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:58:41,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1917411246, now seen corresponding path program 2 times [2025-01-09 16:58:41,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:58:41,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197481563] [2025-01-09 16:58:41,390 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 16:58:41,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:58:44,892 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 222 statements into 2 equivalence classes. [2025-01-09 16:58:45,365 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 222 of 222 statements. [2025-01-09 16:58:45,365 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 16:58:45,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:58:46,897 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2025-01-09 16:58:46,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:58:46,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197481563] [2025-01-09 16:58:46,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197481563] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:58:46,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 16:58:46,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 16:58:46,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248844602] [2025-01-09 16:58:46,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:58:46,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 16:58:46,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:58:46,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 16:58:46,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 16:58:46,901 INFO L87 Difference]: Start difference. First operand 290 states and 401 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2025-01-09 16:58:47,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:58:47,291 INFO L93 Difference]: Finished difference Result 571 states and 795 transitions. [2025-01-09 16:58:47,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 16:58:47,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 222 [2025-01-09 16:58:47,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:58:47,296 INFO L225 Difference]: With dead ends: 571 [2025-01-09 16:58:47,296 INFO L226 Difference]: Without dead ends: 332 [2025-01-09 16:58:47,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 16:58:47,299 INFO L435 NwaCegarLoop]: 396 mSDtfsCounter, 23 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 16:58:47,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2360 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 16:58:47,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2025-01-09 16:58:47,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 306. [2025-01-09 16:58:47,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 178 states have (on average 1.196629213483146) internal successors, (213), 181 states have internal predecessors, (213), 101 states have call successors, (101), 23 states have call predecessors, (101), 26 states have return successors, (110), 102 states have call predecessors, (110), 100 states have call successors, (110) [2025-01-09 16:58:47,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 424 transitions. [2025-01-09 16:58:47,319 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 424 transitions. Word has length 222 [2025-01-09 16:58:47,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:58:47,320 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 424 transitions. [2025-01-09 16:58:47,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2025-01-09 16:58:47,320 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 424 transitions. [2025-01-09 16:58:47,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2025-01-09 16:58:47,321 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:58:47,322 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:58:47,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 16:58:47,322 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:58:47,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:58:47,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1754274448, now seen corresponding path program 1 times [2025-01-09 16:58:47,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:58:47,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236663986] [2025-01-09 16:58:47,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:58:47,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:58:50,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 222 statements into 1 equivalence classes. [2025-01-09 16:58:50,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 222 of 222 statements. [2025-01-09 16:58:50,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:58:50,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:58:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2025-01-09 16:58:53,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 16:58:53,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236663986] [2025-01-09 16:58:53,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236663986] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 16:58:53,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064761515] [2025-01-09 16:58:53,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:58:53,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 16:58:53,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 16:58:53,372 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 16:58:53,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 16:58:57,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 222 statements into 1 equivalence classes. [2025-01-09 16:58:58,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 222 of 222 statements. [2025-01-09 16:58:58,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:58:58,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 16:58:58,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 4978 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-09 16:58:58,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 16:59:00,752 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2025-01-09 16:59:00,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 16:59:00,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064761515] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 16:59:00,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 16:59:00,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2025-01-09 16:59:00,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754507771] [2025-01-09 16:59:00,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 16:59:00,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 16:59:00,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 16:59:00,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 16:59:00,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2025-01-09 16:59:00,755 INFO L87 Difference]: Start difference. First operand 306 states and 424 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) [2025-01-09 16:59:07,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 16:59:07,714 INFO L93 Difference]: Finished difference Result 534 states and 733 transitions. [2025-01-09 16:59:07,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 16:59:07,715 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) Word has length 222 [2025-01-09 16:59:07,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 16:59:07,723 INFO L225 Difference]: With dead ends: 534 [2025-01-09 16:59:07,724 INFO L226 Difference]: Without dead ends: 306 [2025-01-09 16:59:07,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=97, Invalid=605, Unknown=0, NotChecked=0, Total=702 [2025-01-09 16:59:07,728 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 510 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2025-01-09 16:59:07,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 2124 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2025-01-09 16:59:07,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2025-01-09 16:59:07,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2025-01-09 16:59:07,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 178 states have (on average 1.196629213483146) internal successors, (213), 181 states have internal predecessors, (213), 101 states have call successors, (101), 23 states have call predecessors, (101), 26 states have return successors, (106), 102 states have call predecessors, (106), 100 states have call successors, (106) [2025-01-09 16:59:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 420 transitions. [2025-01-09 16:59:07,756 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 420 transitions. Word has length 222 [2025-01-09 16:59:07,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 16:59:07,757 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 420 transitions. [2025-01-09 16:59:07,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) [2025-01-09 16:59:07,757 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 420 transitions. [2025-01-09 16:59:07,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2025-01-09 16:59:07,767 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 16:59:07,768 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 16:59:07,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 16:59:07,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-01-09 16:59:07,969 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 16:59:07,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 16:59:07,970 INFO L85 PathProgramCache]: Analyzing trace with hash 302106328, now seen corresponding path program 1 times [2025-01-09 16:59:07,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 16:59:07,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863190000] [2025-01-09 16:59:07,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 16:59:07,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 16:59:11,467 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 252 statements into 1 equivalence classes. [2025-01-09 16:59:11,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 252 of 252 statements. [2025-01-09 16:59:11,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 16:59:11,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat