./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_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_next_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 839f41a2c3e360479cb51d794d3ab0f4c035e5d91806fe8b36886ee505a3f070 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:10:48,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:10:48,063 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:10:48,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:10:48,069 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:10:48,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:10:48,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:10:48,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:10:48,093 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:10:48,093 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:10:48,094 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:10:48,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:10:48,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:10:48,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:10:48,095 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:10:48,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:10:48,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:10:48,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:10:48,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:10:48,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:10:48,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:10:48,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:10:48,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:10:48,096 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:10:48,096 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:10:48,096 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:10:48,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:10:48,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:10:48,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:10:48,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:10:48,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:10:48,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:10:48,097 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:10:48,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:10:48,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:10:48,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:10:48,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:10:48,097 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:10:48,097 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:10:48,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:10:48,097 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 -> 839f41a2c3e360479cb51d794d3ab0f4c035e5d91806fe8b36886ee505a3f070 [2025-02-06 05:10:48,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:10:48,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:10:48,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:10:48,329 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:10:48,329 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:10:48,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2025-02-06 05:10:49,512 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a67e5026e/23f668d27b504648b101c48ea5b8011b/FLAG263ed5f4d [2025-02-06 05:10:50,103 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:10:50,103 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_next_harness.i [2025-02-06 05:10:50,138 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a67e5026e/23f668d27b504648b101c48ea5b8011b/FLAG263ed5f4d [2025-02-06 05:10:50,617 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a67e5026e/23f668d27b504648b101c48ea5b8011b [2025-02-06 05:10:50,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:10:50,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:10:50,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:10:50,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:10:50,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:10:50,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:10:50" (1/1) ... [2025-02-06 05:10:50,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62aa1ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:50, skipping insertion in model container [2025-02-06 05:10:50,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:10:50" (1/1) ... [2025-02-06 05:10:50,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:10:50,990 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_next_harness.i[4492,4505] [2025-02-06 05:10:50,998 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_next_harness.i[4552,4565] [2025-02-06 05:10:51,596 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:51,596 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:51,597 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:51,597 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:51,598 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:51,609 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:51,609 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:51,611 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:51,611 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:51,612 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:51,613 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:51,613 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:51,614 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,447 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,447 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,485 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,499 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,499 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,525 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,527 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,528 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,528 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,528 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,528 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,529 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,563 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_next_harness.i[227890,227903] [2025-02-06 05:10:52,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:10:52,590 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:10:52,602 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_next_harness.i[4492,4505] [2025-02-06 05:10:52,603 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_next_harness.i[4552,4565] [2025-02-06 05:10:52,638 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,639 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,639 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,639 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,640 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,647 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,647 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,649 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,649 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,650 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,650 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,650 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,650 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-02-06 05:10:52,811 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,812 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,818 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,819 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,820 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,826 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,827 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,827 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,827 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,827 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,829 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,829 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:10:52,843 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_next_harness.i[227890,227903] [2025-02-06 05:10:52,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:10:52,996 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:10:52,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52 WrapperNode [2025-02-06 05:10:52,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:10:52,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:10:52,999 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:10:52,999 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:10:53,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52" (1/1) ... [2025-02-06 05:10:53,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52" (1/1) ... [2025-02-06 05:10:53,136 INFO L138 Inliner]: procedures = 763, calls = 2447, calls flagged for inlining = 68, calls inlined = 11, statements flattened = 643 [2025-02-06 05:10:53,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:10:53,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:10:53,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:10:53,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:10:53,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52" (1/1) ... [2025-02-06 05:10:53,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52" (1/1) ... [2025-02-06 05:10:53,157 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52" (1/1) ... [2025-02-06 05:10:53,215 INFO L175 MemorySlicer]: Split 329 memory accesses to 9 slices as follows [238, 2, 3, 2, 6, 8, 43, 22, 5]. 72 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [6, 2, 0, 0, 0, 0, 9, 0, 5]. The 247 writes are split as follows [232, 0, 1, 1, 2, 1, 9, 1, 0]. [2025-02-06 05:10:53,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52" (1/1) ... [2025-02-06 05:10:53,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52" (1/1) ... [2025-02-06 05:10:53,256 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52" (1/1) ... [2025-02-06 05:10:53,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52" (1/1) ... [2025-02-06 05:10:53,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52" (1/1) ... [2025-02-06 05:10:53,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52" (1/1) ... [2025-02-06 05:10:53,286 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:10:53,287 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:10:53,287 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:10:53,287 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:10:53,288 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52" (1/1) ... [2025-02-06 05:10:53,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:10:53,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:10:53,327 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 05:10:53,332 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 05:10:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-06 05:10:53,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-06 05:10:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-06 05:10:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-06 05:10:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-06 05:10:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-06 05:10:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-06 05:10:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-06 05:10:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-02-06 05:10:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:10:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:10:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:10:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:10:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-06 05:10:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:10:53,353 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:10:53,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:10:53,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:10:53,354 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-06 05:10:53,354 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-06 05:10:53,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:10:53,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:10:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_next [2025-02-06 05:10:53,355 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_next [2025-02-06 05:10:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-06 05:10:53,355 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-06 05:10:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:10:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:10:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:10:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:10:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:10:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:10:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 05:10:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 05:10:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-02-06 05:10:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:10:53,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:10:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:10:53,356 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:10:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:10:53,356 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:10:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:10:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:10:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:10:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:10:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:10:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:10:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 05:10:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-06 05:10:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-02-06 05:10:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2025-02-06 05:10:53,356 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2025-02-06 05:10:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:10:53,356 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-02-06 05:10:53,357 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-06 05:10:53,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-06 05:10:53,357 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:10:53,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-06 05:10:53,357 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:10:53,357 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:10:53,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-06 05:10:53,358 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-06 05:10:53,358 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-06 05:10:53,656 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:10:53,657 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:10:53,683 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-06 05:10:53,709 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-06 05:10:53,711 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:10:53,843 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 05:10:53,909 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 05:10:53,941 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-06 05:10:53,954 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-06 05:10:59,078 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-02-06 05:10:59,125 INFO L? ?]: Removed 160 outVars from TransFormulas that were not future-live. [2025-02-06 05:10:59,125 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:10:59,139 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:10:59,140 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:10:59,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:10:59 BoogieIcfgContainer [2025-02-06 05:10:59,140 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:10:59,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:10:59,142 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:10:59,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:10:59,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:10:50" (1/3) ... [2025-02-06 05:10:59,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496f3c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:10:59, skipping insertion in model container [2025-02-06 05:10:59,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:10:52" (2/3) ... [2025-02-06 05:10:59,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496f3c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:10:59, skipping insertion in model container [2025-02-06 05:10:59,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:10:59" (3/3) ... [2025-02-06 05:10:59,146 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_next_harness.i [2025-02-06 05:10:59,155 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:10:59,156 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_next_harness.i that has 17 procedures, 171 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 05:10:59,189 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:10:59,196 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;@426708be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:10:59,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:10:59,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 111 states have internal predecessors, (138), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2025-02-06 05:10:59,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-02-06 05:10:59,208 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:10:59,209 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:10:59,209 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:10:59,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:10:59,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1659534338, now seen corresponding path program 1 times [2025-02-06 05:10:59,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:10:59,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136801016] [2025-02-06 05:10:59,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:10:59,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:11:03,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-02-06 05:11:03,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-02-06 05:11:03,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:03,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:04,394 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2025-02-06 05:11:04,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:11:04,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136801016] [2025-02-06 05:11:04,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136801016] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:11:04,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910938484] [2025-02-06 05:11:04,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:04,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:11:04,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:11:04,397 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 05:11:04,401 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 05:11:08,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-02-06 05:11:09,246 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-02-06 05:11:09,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:09,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:09,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 4566 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 05:11:09,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:11:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2025-02-06 05:11:09,294 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:11:09,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910938484] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:11:09,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:11:09,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 05:11:09,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366915639] [2025-02-06 05:11:09,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:11:09,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:11:09,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:11:09,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:11:09,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:11:09,330 INFO L87 Difference]: Start difference. First operand has 171 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 111 states have internal predecessors, (138), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-06 05:11:09,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:11:09,368 INFO L93 Difference]: Finished difference Result 334 states and 473 transitions. [2025-02-06 05:11:09,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:11:09,370 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 155 [2025-02-06 05:11:09,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:11:09,375 INFO L225 Difference]: With dead ends: 334 [2025-02-06 05:11:09,376 INFO L226 Difference]: Without dead ends: 165 [2025-02-06 05:11:09,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 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 05:11:09,380 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 05:11:09,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:11:09,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2025-02-06 05:11:09,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2025-02-06 05:11:09,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 105 states have (on average 1.2380952380952381) internal successors, (130), 106 states have internal predecessors, (130), 43 states have call successors, (43), 16 states have call predecessors, (43), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2025-02-06 05:11:09,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 215 transitions. [2025-02-06 05:11:09,412 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 215 transitions. Word has length 155 [2025-02-06 05:11:09,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:11:09,412 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 215 transitions. [2025-02-06 05:11:09,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-06 05:11:09,412 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 215 transitions. [2025-02-06 05:11:09,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-02-06 05:11:09,416 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:11:09,416 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:11:09,432 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 05:11:09,617 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 05:11:09,618 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:11:09,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:11:09,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1155618104, now seen corresponding path program 1 times [2025-02-06 05:11:09,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:11:09,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304596957] [2025-02-06 05:11:09,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:09,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:11:13,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-02-06 05:11:13,451 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-02-06 05:11:13,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:13,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:14,452 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-02-06 05:11:14,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:11:14,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304596957] [2025-02-06 05:11:14,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304596957] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:11:14,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899947108] [2025-02-06 05:11:14,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:14,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:11:14,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:11:14,457 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 05:11:14,458 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 05:11:18,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-02-06 05:11:19,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-02-06 05:11:19,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:19,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:19,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 4566 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 05:11:19,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:11:21,281 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-02-06 05:11:21,282 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:11:21,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899947108] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:11:21,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:11:21,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 05:11:21,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575281311] [2025-02-06 05:11:21,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:11:21,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:11:21,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:11:21,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:11:21,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 05:11:21,289 INFO L87 Difference]: Start difference. First operand 165 states and 215 transitions. Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2025-02-06 05:11:23,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:11:23,307 INFO L93 Difference]: Finished difference Result 309 states and 408 transitions. [2025-02-06 05:11:23,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:11:23,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 155 [2025-02-06 05:11:23,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:11:23,314 INFO L225 Difference]: With dead ends: 309 [2025-02-06 05:11:23,314 INFO L226 Difference]: Without dead ends: 171 [2025-02-06 05:11:23,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-02-06 05:11:23,318 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 179 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-06 05:11:23,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 687 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-06 05:11:23,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2025-02-06 05:11:23,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 167. [2025-02-06 05:11:23,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 106 states have (on average 1.2358490566037736) internal successors, (131), 108 states have internal predecessors, (131), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (45), 42 states have call predecessors, (45), 42 states have call successors, (45) [2025-02-06 05:11:23,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 219 transitions. [2025-02-06 05:11:23,349 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 219 transitions. Word has length 155 [2025-02-06 05:11:23,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:11:23,350 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 219 transitions. [2025-02-06 05:11:23,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2025-02-06 05:11:23,350 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 219 transitions. [2025-02-06 05:11:23,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-02-06 05:11:23,356 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:11:23,356 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:11:23,373 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 05:11:23,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:11:23,557 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:11:23,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:11:23,559 INFO L85 PathProgramCache]: Analyzing trace with hash -100955832, now seen corresponding path program 1 times [2025-02-06 05:11:23,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:11:23,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477871263] [2025-02-06 05:11:23,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:23,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:11:27,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-02-06 05:11:27,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-02-06 05:11:27,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:27,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:28,054 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-02-06 05:11:28,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:11:28,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477871263] [2025-02-06 05:11:28,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477871263] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:11:28,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588689377] [2025-02-06 05:11:28,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:28,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:11:28,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:11:28,057 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:11:28,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 05:11:32,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-02-06 05:11:32,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-02-06 05:11:32,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:32,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:32,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 4571 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 05:11:32,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:11:35,162 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 102 proven. 55 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-02-06 05:11:35,163 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 05:11:38,481 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-02-06 05:11:38,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588689377] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 05:11:38,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 05:11:38,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 16 [2025-02-06 05:11:38,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126985137] [2025-02-06 05:11:38,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 05:11:38,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-06 05:11:38,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:11:38,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-06 05:11:38,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2025-02-06 05:11:38,485 INFO L87 Difference]: Start difference. First operand 167 states and 219 transitions. Second operand has 16 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 8 states have call successors, (63), 5 states have call predecessors, (63), 5 states have return successors, (59), 7 states have call predecessors, (59), 8 states have call successors, (59) [2025-02-06 05:11:44,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:11:44,567 INFO L93 Difference]: Finished difference Result 331 states and 439 transitions. [2025-02-06 05:11:44,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 05:11:44,568 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 8 states have call successors, (63), 5 states have call predecessors, (63), 5 states have return successors, (59), 7 states have call predecessors, (59), 8 states have call successors, (59) Word has length 156 [2025-02-06 05:11:44,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:11:44,573 INFO L225 Difference]: With dead ends: 331 [2025-02-06 05:11:44,573 INFO L226 Difference]: Without dead ends: 176 [2025-02-06 05:11:44,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2025-02-06 05:11:44,578 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 211 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2025-02-06 05:11:44,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 1812 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2025-02-06 05:11:44,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-02-06 05:11:44,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 172. [2025-02-06 05:11:44,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 110 states have (on average 1.2272727272727273) internal successors, (135), 112 states have internal predecessors, (135), 43 states have call successors, (43), 16 states have call predecessors, (43), 18 states have return successors, (44), 43 states have call predecessors, (44), 42 states have call successors, (44) [2025-02-06 05:11:44,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 222 transitions. [2025-02-06 05:11:44,611 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 222 transitions. Word has length 156 [2025-02-06 05:11:44,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:11:44,611 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 222 transitions. [2025-02-06 05:11:44,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 8 states have call successors, (63), 5 states have call predecessors, (63), 5 states have return successors, (59), 7 states have call predecessors, (59), 8 states have call successors, (59) [2025-02-06 05:11:44,612 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 222 transitions. [2025-02-06 05:11:44,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-02-06 05:11:44,615 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:11:44,615 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:11:44,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 05:11:44,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:11:44,816 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:11:44,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:11:44,816 INFO L85 PathProgramCache]: Analyzing trace with hash -606917834, now seen corresponding path program 1 times [2025-02-06 05:11:44,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:11:44,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193182319] [2025-02-06 05:11:44,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:44,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:11:48,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-02-06 05:11:48,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-02-06 05:11:48,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:48,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:51,604 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-02-06 05:11:51,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:11:51,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193182319] [2025-02-06 05:11:51,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193182319] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:11:51,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491692325] [2025-02-06 05:11:51,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:11:51,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:11:51,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:11:51,610 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:11:51,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 05:11:55,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-02-06 05:11:56,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-02-06 05:11:56,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:11:56,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:11:56,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 4584 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 05:11:56,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:12:00,037 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 6 proven. 128 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-02-06 05:12:00,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 05:12:05,183 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-02-06 05:12:05,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491692325] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-06 05:12:05,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-06 05:12:05,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10, 10] total 25 [2025-02-06 05:12:05,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592624520] [2025-02-06 05:12:05,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:12:05,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 05:12:05,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:12:05,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 05:12:05,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2025-02-06 05:12:05,187 INFO L87 Difference]: Start difference. First operand 172 states and 222 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 8 states have internal predecessors, (63), 6 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2025-02-06 05:12:10,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:12:10,830 INFO L93 Difference]: Finished difference Result 252 states and 330 transitions. [2025-02-06 05:12:10,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 05:12:10,831 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 8 states have internal predecessors, (63), 6 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) Word has length 169 [2025-02-06 05:12:10,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:12:10,834 INFO L225 Difference]: With dead ends: 252 [2025-02-06 05:12:10,835 INFO L226 Difference]: Without dead ends: 176 [2025-02-06 05:12:10,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 324 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=92, Invalid=900, Unknown=0, NotChecked=0, Total=992 [2025-02-06 05:12:10,840 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 230 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-02-06 05:12:10,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1258 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-02-06 05:12:10,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-02-06 05:12:10,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 170. [2025-02-06 05:12:10,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 109 states have (on average 1.2201834862385321) internal successors, (133), 110 states have internal predecessors, (133), 43 states have call successors, (43), 16 states have call predecessors, (43), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2025-02-06 05:12:10,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 219 transitions. [2025-02-06 05:12:10,873 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 219 transitions. Word has length 169 [2025-02-06 05:12:10,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:12:10,873 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 219 transitions. [2025-02-06 05:12:10,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 8 states have internal predecessors, (63), 6 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2025-02-06 05:12:10,873 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 219 transitions. [2025-02-06 05:12:10,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-02-06 05:12:10,874 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:10,879 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:12:10,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 05:12:11,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:11,080 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:11,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:11,081 INFO L85 PathProgramCache]: Analyzing trace with hash 285817506, now seen corresponding path program 1 times [2025-02-06 05:12:11,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:11,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345599992] [2025-02-06 05:12:11,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:11,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:14,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-02-06 05:12:14,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-02-06 05:12:14,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:14,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:17,788 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2025-02-06 05:12:17,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:12:17,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345599992] [2025-02-06 05:12:17,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345599992] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:12:17,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68907120] [2025-02-06 05:12:17,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:17,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:17,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:17,791 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:12:17,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 05:12:22,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-02-06 05:12:22,541 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-02-06 05:12:22,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:22,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:22,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 4589 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 05:12:22,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:12:23,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1