./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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_hash_iter_delete_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 5090677d6d260db259697db079256cfe609dc5bc5a9b3d2a9bbc85c8942fae90 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:10:35,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:10:35,411 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:10:35,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:10:35,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:10:35,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:10:35,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:10:35,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:10:35,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:10:35,455 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:10:35,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:10:35,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:10:35,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:10:35,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:10:35,457 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:10:35,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:10:35,458 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:10:35,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:10:35,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:10:35,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:10:35,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:10:35,458 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:10:35,459 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:10:35,459 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:10:35,459 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:10:35,459 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:10:35,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:10:35,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:10:35,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:10:35,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:10:35,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:10:35,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:10:35,460 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:10:35,460 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:10:35,460 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:10:35,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:10:35,461 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:10:35,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:10:35,461 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:10:35,461 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:10:35,461 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 -> 5090677d6d260db259697db079256cfe609dc5bc5a9b3d2a9bbc85c8942fae90 [2025-02-06 05:10:35,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:10:35,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:10:35,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:10:35,750 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:10:35,750 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:10:35,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i [2025-02-06 05:10:37,101 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2e7533c72/0beaf97c7c80481ba95f2fc0dbfdf6f8/FLAGfe6dd591b [2025-02-06 05:10:37,641 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:10:37,642 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i [2025-02-06 05:10:37,682 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2e7533c72/0beaf97c7c80481ba95f2fc0dbfdf6f8/FLAGfe6dd591b [2025-02-06 05:10:37,699 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2e7533c72/0beaf97c7c80481ba95f2fc0dbfdf6f8 [2025-02-06 05:10:37,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:10:37,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:10:37,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:10:37,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:10:37,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:10:37,712 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:10:37" (1/1) ... [2025-02-06 05:10:37,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7f992c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:37, skipping insertion in model container [2025-02-06 05:10:37,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:10:37" (1/1) ... [2025-02-06 05:10:37,807 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:10:38,093 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_hash_iter_delete_harness.i[4494,4507] [2025-02-06 05:10:38,102 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_hash_iter_delete_harness.i[4554,4567] [2025-02-06 05:10:39,172 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:39,172 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:39,173 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:39,174 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:39,175 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:39,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:39,186 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:39,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:39,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:39,190 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:39,191 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:39,191 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:39,191 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,287 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,288 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,320 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,320 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,331 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,349 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,351 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,352 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,352 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,352 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,353 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,353 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,398 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_hash_iter_delete_harness.i[227989,228002] [2025-02-06 05:10:40,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:10:40,430 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:10:40,447 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_hash_iter_delete_harness.i[4494,4507] [2025-02-06 05:10:40,447 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_hash_iter_delete_harness.i[4554,4567] [2025-02-06 05:10:40,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,486 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,486 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,487 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,487 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,492 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,494 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,494 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,499 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,499 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-02-06 05:10:40,701 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,702 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,709 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,709 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,711 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,712 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,721 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,722 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,723 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,724 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,725 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:40,741 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_hash_iter_delete_harness.i[227989,228002] [2025-02-06 05:10:40,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:10:40,942 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:10:40,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40 WrapperNode [2025-02-06 05:10:40,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:10:40,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:10:40,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:10:40,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:10:40,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40" (1/1) ... [2025-02-06 05:10:41,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40" (1/1) ... [2025-02-06 05:10:41,123 INFO L138 Inliner]: procedures = 763, calls = 2455, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 747 [2025-02-06 05:10:41,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:10:41,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:10:41,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:10:41,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:10:41,135 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40" (1/1) ... [2025-02-06 05:10:41,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40" (1/1) ... [2025-02-06 05:10:41,143 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40" (1/1) ... [2025-02-06 05:10:41,226 INFO L175 MemorySlicer]: Split 348 memory accesses to 9 slices as follows [2, 45, 238, 13, 40, 2, 1, 5, 2]. 68 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 6, 0, 9, 0, 0, 5, 0]. The 246 writes are split as follows [0, 6, 232, 1, 4, 1, 1, 0, 1]. [2025-02-06 05:10:41,230 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40" (1/1) ... [2025-02-06 05:10:41,230 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40" (1/1) ... [2025-02-06 05:10:41,284 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40" (1/1) ... [2025-02-06 05:10:41,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40" (1/1) ... [2025-02-06 05:10:41,303 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40" (1/1) ... [2025-02-06 05:10:41,311 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40" (1/1) ... [2025-02-06 05:10:41,330 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:10:41,333 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:10:41,333 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:10:41,333 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:10:41,334 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40" (1/1) ... [2025-02-06 05:10:41,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:10:41,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:10:41,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 05:10:41,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 05:10:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-06 05:10:41,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 05:10:41,401 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:10:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:10:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:10:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-06 05:10:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-06 05:10:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-02-06 05:10:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:10:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:10:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:10:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:10:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-02-06 05:10:41,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2025-02-06 05:10:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 05:10:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 05:10:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-06 05:10:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-02-06 05:10:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-02-06 05:10:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-02-06 05:10:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-02-06 05:10:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-02-06 05:10:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2025-02-06 05:10:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:10:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:10:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:10:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-02-06 05:10:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-02-06 05:10:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-06 05:10:41,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-06 05:10:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:10:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:10:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:10:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:10:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:10:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 05:10:41,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-06 05:10:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:10:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-06 05:10:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:10:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2025-02-06 05:10:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-06 05:10:41,408 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_delete [2025-02-06 05:10:41,408 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_delete [2025-02-06 05:10:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:10:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:10:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:10:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:10:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:10:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:10:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 05:10:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 05:10:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-06 05:10:41,409 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-06 05:10:41,409 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-06 05:10:41,857 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:10:41,861 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:10:41,901 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-06 05:10:41,961 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-06 05:10:41,967 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:10:42,204 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9142-1: assume false; [2025-02-06 05:10:42,205 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9142-1: assume !false; [2025-02-06 05:10:42,205 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9640-1: assume false; [2025-02-06 05:10:42,205 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9640-1: assume !false; [2025-02-06 05:10:42,423 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-02-06 05:10:42,507 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9990: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-02-06 05:10:42,511 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 05:10:42,541 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-06 05:10:42,564 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-06 05:10:47,778 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6833: havoc aws_hash_table_has_an_empty_slot_#t~mem566#1.base, aws_hash_table_has_an_empty_slot_#t~mem566#1.offset;havoc aws_hash_table_has_an_empty_slot_#t~ret567#1; [2025-02-06 05:10:47,778 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6843: havoc hash_table_state_has_an_empty_slot_#t~mem571#1; [2025-02-06 05:10:47,876 INFO L? ?]: Removed 222 outVars from TransFormulas that were not future-live. [2025-02-06 05:10:47,877 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:10:47,899 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:10:47,899 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:10:47,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:10:47 BoogieIcfgContainer [2025-02-06 05:10:47,900 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:10:47,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:10:47,904 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:10:47,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:10:47,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:10:37" (1/3) ... [2025-02-06 05:10:47,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcf3bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:10:47, skipping insertion in model container [2025-02-06 05:10:47,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:40" (2/3) ... [2025-02-06 05:10:47,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcf3bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:10:47, skipping insertion in model container [2025-02-06 05:10:47,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:10:47" (3/3) ... [2025-02-06 05:10:47,911 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_delete_harness.i [2025-02-06 05:10:47,924 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:10:47,926 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_delete_harness.i that has 28 procedures, 257 locations, 1 initial locations, 13 loop locations, and 1 error locations. [2025-02-06 05:10:47,981 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:10:47,995 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;@3d731930, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:10:47,995 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:10:48,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 225 states, 150 states have (on average 1.2933333333333332) internal successors, (194), 151 states have internal predecessors, (194), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2025-02-06 05:10:48,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-02-06 05:10:48,016 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:10:48,016 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:10:48,017 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:10:48,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:10:48,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1654136597, now seen corresponding path program 1 times [2025-02-06 05:10:48,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:10:48,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891755893] [2025-02-06 05:10:48,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:10:48,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:10:53,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-06 05:10:54,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-06 05:10:54,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:10:54,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:10:54,911 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2025-02-06 05:10:54,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:10:54,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891755893] [2025-02-06 05:10:54,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891755893] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:10:54,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052382422] [2025-02-06 05:10:54,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:10:54,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:10:54,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:10:54,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:10:54,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 05:11:00,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-06 05:11:00,768 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-06 05:11:00,768 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:00,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:00,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 4561 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 05:11:00,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:11:00,834 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2025-02-06 05:11:00,834 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:11:00,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052382422] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:11:00,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:11:00,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 05:11:00,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351798570] [2025-02-06 05:11:00,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:11:00,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:11:00,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:11:00,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:11:00,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:11:00,871 INFO L87 Difference]: Start difference. First operand has 225 states, 150 states have (on average 1.2933333333333332) internal successors, (194), 151 states have internal predecessors, (194), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2025-02-06 05:11:00,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:11:00,956 INFO L93 Difference]: Finished difference Result 445 states and 638 transitions. [2025-02-06 05:11:00,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:11:00,958 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2025-02-06 05:11:00,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:11:00,966 INFO L225 Difference]: With dead ends: 445 [2025-02-06 05:11:00,966 INFO L226 Difference]: Without dead ends: 220 [2025-02-06 05:11:00,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:11:00,973 INFO L435 NwaCegarLoop]: 291 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 05:11:00,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 291 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:11:00,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2025-02-06 05:11:01,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2025-02-06 05:11:01,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 146 states have (on average 1.2465753424657535) internal successors, (182), 147 states have internal predecessors, (182), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-02-06 05:11:01,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 289 transitions. [2025-02-06 05:11:01,035 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 289 transitions. Word has length 203 [2025-02-06 05:11:01,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:11:01,038 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 289 transitions. [2025-02-06 05:11:01,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2025-02-06 05:11:01,038 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 289 transitions. [2025-02-06 05:11:01,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-02-06 05:11:01,045 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:11:01,045 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:11:01,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 05:11:01,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 05:11:01,246 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:11:01,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:11:01,247 INFO L85 PathProgramCache]: Analyzing trace with hash 829835442, now seen corresponding path program 1 times [2025-02-06 05:11:01,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:11:01,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220890620] [2025-02-06 05:11:01,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:01,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:11:05,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-06 05:11:05,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-06 05:11:05,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:05,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:07,475 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2025-02-06 05:11:07,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:11:07,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220890620] [2025-02-06 05:11:07,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220890620] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:11:07,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:11:07,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 05:11:07,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615240037] [2025-02-06 05:11:07,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:11:07,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 05:11:07,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:11:07,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 05:11:07,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:11:07,481 INFO L87 Difference]: Start difference. First operand 220 states and 289 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2025-02-06 05:11:07,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:11:07,800 INFO L93 Difference]: Finished difference Result 403 states and 533 transitions. [2025-02-06 05:11:07,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 05:11:07,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2025-02-06 05:11:07,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:11:07,805 INFO L225 Difference]: With dead ends: 403 [2025-02-06 05:11:07,805 INFO L226 Difference]: Without dead ends: 225 [2025-02-06 05:11:07,807 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 [2025-02-06 05:11:07,808 INFO L435 NwaCegarLoop]: 283 mSDtfsCounter, 0 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 05:11:07,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1128 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 05:11:07,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2025-02-06 05:11:07,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2025-02-06 05:11:07,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 150 states have (on average 1.24) internal successors, (186), 151 states have internal predecessors, (186), 54 states have call successors, (54), 19 states have call predecessors, (54), 20 states have return successors, (54), 54 states have call predecessors, (54), 53 states have call successors, (54) [2025-02-06 05:11:07,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 294 transitions. [2025-02-06 05:11:07,837 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 294 transitions. Word has length 203 [2025-02-06 05:11:07,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:11:07,839 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 294 transitions. [2025-02-06 05:11:07,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2025-02-06 05:11:07,839 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 294 transitions. [2025-02-06 05:11:07,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-02-06 05:11:07,843 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:11:07,843 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:11:07,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 05:11:07,843 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:11:07,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:11:07,844 INFO L85 PathProgramCache]: Analyzing trace with hash 469007607, now seen corresponding path program 1 times [2025-02-06 05:11:07,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:11:07,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085250725] [2025-02-06 05:11:07,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:07,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:11:11,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-02-06 05:11:12,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-02-06 05:11:12,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:12,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:13,827 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2025-02-06 05:11:13,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:11:13,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085250725] [2025-02-06 05:11:13,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085250725] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:11:13,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:11:13,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 05:11:13,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513050872] [2025-02-06 05:11:13,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:11:13,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 05:11:13,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:11:13,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 05:11:13,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:11:13,831 INFO L87 Difference]: Start difference. First operand 225 states and 294 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2025-02-06 05:11:14,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:11:14,375 INFO L93 Difference]: Finished difference Result 396 states and 525 transitions. [2025-02-06 05:11:14,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 05:11:14,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 209 [2025-02-06 05:11:14,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:11:14,388 INFO L225 Difference]: With dead ends: 396 [2025-02-06 05:11:14,388 INFO L226 Difference]: Without dead ends: 232 [2025-02-06 05:11:14,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:11:14,392 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 21 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 05:11:14,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 790 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 05:11:14,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2025-02-06 05:11:14,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2025-02-06 05:11:14,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 155 states have (on average 1.238709677419355) internal successors, (192), 157 states have internal predecessors, (192), 55 states have call successors, (55), 19 states have call predecessors, (55), 21 states have return successors, (56), 55 states have call predecessors, (56), 54 states have call successors, (56) [2025-02-06 05:11:14,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 303 transitions. [2025-02-06 05:11:14,413 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 303 transitions. Word has length 209 [2025-02-06 05:11:14,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:11:14,414 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 303 transitions. [2025-02-06 05:11:14,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2025-02-06 05:11:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 303 transitions. [2025-02-06 05:11:14,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-02-06 05:11:14,418 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:11:14,418 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:11:14,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 05:11:14,418 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:11:14,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:11:14,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1408261288, now seen corresponding path program 1 times [2025-02-06 05:11:14,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:11:14,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407858513] [2025-02-06 05:11:14,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:14,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:11:18,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-02-06 05:11:18,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-02-06 05:11:18,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:18,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:23,637 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2025-02-06 05:11:23,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:11:23,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407858513] [2025-02-06 05:11:23,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407858513] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:11:23,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:11:23,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 05:11:23,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999111898] [2025-02-06 05:11:23,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:11:23,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 05:11:23,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:11:23,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 05:11:23,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 05:11:23,639 INFO L87 Difference]: Start difference. First operand 232 states and 303 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2025-02-06 05:11:26,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:11:26,252 INFO L93 Difference]: Finished difference Result 409 states and 540 transitions. [2025-02-06 05:11:26,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 05:11:26,253 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 209 [2025-02-06 05:11:26,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:11:26,256 INFO L225 Difference]: With dead ends: 409 [2025-02-06 05:11:26,256 INFO L226 Difference]: Without dead ends: 238 [2025-02-06 05:11:26,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-02-06 05:11:26,259 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 18 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-06 05:11:26,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2085 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-06 05:11:26,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2025-02-06 05:11:26,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 232. [2025-02-06 05:11:26,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 155 states have (on average 1.238709677419355) internal successors, (192), 157 states have internal predecessors, (192), 55 states have call successors, (55), 19 states have call predecessors, (55), 21 states have return successors, (56), 55 states have call predecessors, (56), 54 states have call successors, (56) [2025-02-06 05:11:26,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 303 transitions. [2025-02-06 05:11:26,283 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 303 transitions. Word has length 209 [2025-02-06 05:11:26,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:11:26,284 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 303 transitions. [2025-02-06 05:11:26,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2025-02-06 05:11:26,284 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 303 transitions. [2025-02-06 05:11:26,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2025-02-06 05:11:26,287 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:11:26,287 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:11:26,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 05:11:26,287 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:11:26,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:11:26,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1439260649, now seen corresponding path program 1 times [2025-02-06 05:11:26,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:11:26,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859114290] [2025-02-06 05:11:26,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:26,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:11:30,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-02-06 05:11:30,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-02-06 05:11:30,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:30,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2025-02-06 05:11:32,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:11:32,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859114290] [2025-02-06 05:11:32,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859114290] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:11:32,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478442800] [2025-02-06 05:11:32,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:32,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:11:32,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:11:32,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:11:32,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 05:11:37,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-02-06 05:11:38,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-02-06 05:11:38,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:38,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:38,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 4594 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-02-06 05:11:38,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:11:39,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 05:11:41,994 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2025-02-06 05:11:41,994 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:11:41,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478442800] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:11:41,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:11:41,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7] total 17 [2025-02-06 05:11:41,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278171274] [2025-02-06 05:11:41,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:11:41,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 05:11:41,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:11:41,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 05:11:41,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2025-02-06 05:11:41,996 INFO L87 Difference]: Start difference. First operand 232 states and 303 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 10 states have internal predecessors, (87), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) [2025-02-06 05:11:49,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:11:49,959 INFO L93 Difference]: Finished difference Result 432 states and 567 transitions. [2025-02-06 05:11:49,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 05:11:49,960 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 10 states have internal predecessors, (87), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) Word has length 215 [2025-02-06 05:11:49,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:11:49,962 INFO L225 Difference]: With dead ends: 432 [2025-02-06 05:11:49,962 INFO L226 Difference]: Without dead ends: 261 [2025-02-06 05:11:49,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2025-02-06 05:11:49,964 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 204 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2025-02-06 05:11:49,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 2014 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2025-02-06 05:11:49,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2025-02-06 05:11:49,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 250. [2025-02-06 05:11:49,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 169 states have (on average 1.2307692307692308) internal successors, (208), 172 states have internal predecessors, (208), 55 states have call successors, (55), 22 states have call predecessors, (55), 25 states have return successors, (62), 55 states have call predecessors, (62), 54 states have call successors, (62) [2025-02-06 05:11:49,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 325 transitions. [2025-02-06 05:11:49,985 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 325 transitions. Word has length 215 [2025-02-06 05:11:49,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:11:49,986 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 325 transitions. [2025-02-06 05:11:49,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 10 states have internal predecessors, (87), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) [2025-02-06 05:11:49,986 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 325 transitions. [2025-02-06 05:11:49,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2025-02-06 05:11:49,988 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:11:49,988 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:11:50,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 05:11:50,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:11:50,189 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:11:50,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:11:50,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1990544717, now seen corresponding path program 1 times [2025-02-06 05:11:50,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:11:50,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331160644] [2025-02-06 05:11:50,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:50,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:11:54,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 222 statements into 1 equivalence classes. [2025-02-06 05:11:54,483 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 222 of 222 statements. [2025-02-06 05:11:54,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:54,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat