./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.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_table_clear_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dd5e0a204807afb29e9a73f02b18d8e64fc0751466c350fae08f7d9700c18247 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:12:01,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:12:01,215 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:12:01,219 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:12:01,220 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:12:01,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:12:01,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:12:01,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:12:01,249 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:12:01,249 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:12:01,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:12:01,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:12:01,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:12:01,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:12:01,250 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:12:01,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:12:01,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:12:01,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:12:01,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:12:01,251 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:12:01,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:12:01,251 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:12:01,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:12:01,251 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:12:01,251 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:12:01,251 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:12:01,251 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:12:01,251 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:12:01,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:12:01,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:12:01,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:12:01,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:12:01,252 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:12:01,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:12:01,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:12:01,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:12:01,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:12:01,252 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:12:01,252 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:12:01,252 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:12:01,252 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 -> dd5e0a204807afb29e9a73f02b18d8e64fc0751466c350fae08f7d9700c18247 [2025-02-06 05:12:01,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:12:01,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:12:01,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:12:01,555 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:12:01,555 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:12:01,556 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i [2025-02-06 05:12:02,843 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/78df02292/55afa22c3d5d40478bad3d9d8d7c184f/FLAGa9afaa9e6 [2025-02-06 05:12:03,518 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:12:03,519 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i [2025-02-06 05:12:03,574 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/78df02292/55afa22c3d5d40478bad3d9d8d7c184f/FLAGa9afaa9e6 [2025-02-06 05:12:03,596 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/78df02292/55afa22c3d5d40478bad3d9d8d7c184f [2025-02-06 05:12:03,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:12:03,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:12:03,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:12:03,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:12:03,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:12:03,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:12:03" (1/1) ... [2025-02-06 05:12:03,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe6369c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:03, skipping insertion in model container [2025-02-06 05:12:03,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:12:03" (1/1) ... [2025-02-06 05:12:03,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:12:04,052 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_table_clear_harness_negated.i[4494,4507] [2025-02-06 05:12:04,063 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_table_clear_harness_negated.i[4554,4567] [2025-02-06 05:12:05,307 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:05,310 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:05,312 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:05,313 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:05,315 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:05,327 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:05,327 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:05,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:05,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:05,331 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:05,332 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:05,332 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:05,333 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:06,896 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:06,897 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:06,941 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:06,942 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:06,954 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:06,954 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:06,973 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:06,974 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:06,974 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:06,974 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:06,975 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:06,975 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:06,975 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,020 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_table_clear_harness_negated.i[228400,228413] [2025-02-06 05:12:07,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:12:07,059 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:12:07,072 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_table_clear_harness_negated.i[4494,4507] [2025-02-06 05:12:07,076 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_table_clear_harness_negated.i[4554,4567] [2025-02-06 05:12:07,126 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,127 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,127 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,127 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,128 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,134 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,135 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,135 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,136 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,137 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,138 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,138 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,138 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7553-7564] [2025-02-06 05:12:07,343 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,343 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,349 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,350 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,352 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,353 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,364 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,365 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,366 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,366 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,366 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,367 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,367 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:12:07,388 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_table_clear_harness_negated.i[228400,228413] [2025-02-06 05:12:07,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:12:07,609 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:12:07,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07 WrapperNode [2025-02-06 05:12:07,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:12:07,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:12:07,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:12:07,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:12:07,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07" (1/1) ... [2025-02-06 05:12:07,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07" (1/1) ... [2025-02-06 05:12:07,775 INFO L138 Inliner]: procedures = 764, calls = 2435, calls flagged for inlining = 69, calls inlined = 13, statements flattened = 613 [2025-02-06 05:12:07,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:12:07,780 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:12:07,783 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:12:07,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:12:07,798 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07" (1/1) ... [2025-02-06 05:12:07,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07" (1/1) ... [2025-02-06 05:12:07,808 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07" (1/1) ... [2025-02-06 05:12:07,873 INFO L175 MemorySlicer]: Split 292 memory accesses to 8 slices as follows [238, 2, 2, 1, 8, 34, 2, 5]. 82 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [6, 2, 0, 0, 0, 0, 0, 5]. The 241 writes are split as follows [232, 0, 1, 1, 1, 5, 1, 0]. [2025-02-06 05:12:07,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07" (1/1) ... [2025-02-06 05:12:07,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07" (1/1) ... [2025-02-06 05:12:07,917 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07" (1/1) ... [2025-02-06 05:12:07,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07" (1/1) ... [2025-02-06 05:12:07,934 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07" (1/1) ... [2025-02-06 05:12:07,944 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07" (1/1) ... [2025-02-06 05:12:07,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:12:07,961 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:12:07,962 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:12:07,962 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:12:07,963 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07" (1/1) ... [2025-02-06 05:12:07,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:12:07,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:08,002 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 05:12:08,006 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 05:12:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2025-02-06 05:12:08,031 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2025-02-06 05:12:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-06 05:12:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-06 05:12:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-06 05:12:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-06 05:12:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-06 05:12:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-06 05:12:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-06 05:12:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-06 05:12:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:12:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-06 05:12:08,033 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-06 05:12:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:12:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:12:08,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:12:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:12:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:12:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:12:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 05:12:08,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-06 05:12:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:12:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:12:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:12:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:12:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:12:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:12:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 05:12:08,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 05:12:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:12:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:12:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:12:08,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:12:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-06 05:12:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-06 05:12:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_clear [2025-02-06 05:12:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_clear [2025-02-06 05:12:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:12:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:12:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-06 05:12:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-06 05:12:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:12:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:12:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:12:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-02-06 05:12:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:12:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:12:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:12:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:12:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-06 05:12:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 05:12:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-06 05:12:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:12:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-06 05:12:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:12:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 05:12:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-02-06 05:12:08,042 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-02-06 05:12:08,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:12:08,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:12:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:12:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:12:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:12:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:12:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 05:12:08,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 05:12:08,044 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-06 05:12:08,044 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-06 05:12:08,420 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:12:08,422 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:12:08,514 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-06 05:12:08,553 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L10096: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-02-06 05:12:08,647 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-06 05:12:08,649 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:12:08,666 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7383: havoc #t~ret691.base, #t~ret691.offset; [2025-02-06 05:12:08,703 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9983: havoc #t~mem1492.base, #t~mem1492.offset;havoc #t~short1493;havoc #t~mem1494.base, #t~mem1494.offset;havoc #t~ret1495;havoc #t~short1496; [2025-02-06 05:12:08,712 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-06 05:12:08,832 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-06 05:12:08,855 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-06 05:12:14,205 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6821: 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 05:12:14,205 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6831: havoc hash_table_state_has_an_empty_slot_#t~mem571#1; [2025-02-06 05:12:14,286 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2025-02-06 05:12:14,286 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:12:14,309 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:12:14,310 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:12:14,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:12:14 BoogieIcfgContainer [2025-02-06 05:12:14,310 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:12:14,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:12:14,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:12:14,318 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:12:14,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:12:03" (1/3) ... [2025-02-06 05:12:14,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587a06c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:12:14, skipping insertion in model container [2025-02-06 05:12:14,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:12:07" (2/3) ... [2025-02-06 05:12:14,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587a06c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:12:14, skipping insertion in model container [2025-02-06 05:12:14,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:12:14" (3/3) ... [2025-02-06 05:12:14,322 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clear_harness_negated.i [2025-02-06 05:12:14,337 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:12:14,339 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_clear_harness_negated.i that has 19 procedures, 175 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-02-06 05:12:14,401 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:12:14,418 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;@577cfedd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:12:14,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:12:14,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 114 states have (on average 1.1929824561403508) internal successors, (136), 115 states have internal predecessors, (136), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2025-02-06 05:12:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-06 05:12:14,436 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:14,437 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 05:12:14,438 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:14,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:14,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1591266050, now seen corresponding path program 1 times [2025-02-06 05:12:14,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:14,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615904534] [2025-02-06 05:12:14,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:14,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:19,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-06 05:12:19,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-06 05:12:19,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:19,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:20,452 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2025-02-06 05:12:20,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:12:20,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615904534] [2025-02-06 05:12:20,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615904534] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:12:20,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243192625] [2025-02-06 05:12:20,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:20,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:20,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:20,458 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 05:12:20,460 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 05:12:25,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-06 05:12:25,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-06 05:12:25,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:25,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:26,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 4363 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 05:12:26,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:12:26,053 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2025-02-06 05:12:26,053 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:12:26,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243192625] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:12:26,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:12:26,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 05:12:26,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509715179] [2025-02-06 05:12:26,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:12:26,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:12:26,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:12:26,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:12:26,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:12:26,082 INFO L87 Difference]: Start difference. First operand has 175 states, 114 states have (on average 1.1929824561403508) internal successors, (136), 115 states have internal predecessors, (136), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 05:12:26,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:12:26,134 INFO L93 Difference]: Finished difference Result 345 states and 456 transitions. [2025-02-06 05:12:26,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:12:26,136 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 141 [2025-02-06 05:12:26,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:12:26,143 INFO L225 Difference]: With dead ends: 345 [2025-02-06 05:12:26,143 INFO L226 Difference]: Without dead ends: 168 [2025-02-06 05:12:26,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 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 05:12:26,153 INFO L435 NwaCegarLoop]: 213 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, 213 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 05:12:26,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:12:26,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-02-06 05:12:26,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2025-02-06 05:12:26,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 108 states have (on average 1.1574074074074074) internal successors, (125), 109 states have internal predecessors, (125), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-02-06 05:12:26,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 206 transitions. [2025-02-06 05:12:26,204 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 206 transitions. Word has length 141 [2025-02-06 05:12:26,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:12:26,207 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 206 transitions. [2025-02-06 05:12:26,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 05:12:26,208 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 206 transitions. [2025-02-06 05:12:26,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-06 05:12:26,213 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:26,214 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 05:12:26,232 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 05:12:26,414 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 05:12:26,415 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:26,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:26,415 INFO L85 PathProgramCache]: Analyzing trace with hash -193809122, now seen corresponding path program 1 times [2025-02-06 05:12:26,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:26,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663309079] [2025-02-06 05:12:26,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:26,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:30,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-06 05:12:30,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-06 05:12:30,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:30,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:32,126 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2025-02-06 05:12:32,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:12:32,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663309079] [2025-02-06 05:12:32,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663309079] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:12:32,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:12:32,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 05:12:32,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530788339] [2025-02-06 05:12:32,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:12:32,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 05:12:32,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:12:32,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 05:12:32,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:12:32,130 INFO L87 Difference]: Start difference. First operand 168 states and 206 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 05:12:32,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:12:32,352 INFO L93 Difference]: Finished difference Result 299 states and 367 transitions. [2025-02-06 05:12:32,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 05:12:32,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 141 [2025-02-06 05:12:32,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:12:32,356 INFO L225 Difference]: With dead ends: 299 [2025-02-06 05:12:32,356 INFO L226 Difference]: Without dead ends: 173 [2025-02-06 05:12:32,357 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 05:12:32,358 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 05:12:32,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 804 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 05:12:32,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-02-06 05:12:32,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-02-06 05:12:32,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 112 states have (on average 1.1517857142857142) internal successors, (129), 113 states have internal predecessors, (129), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2025-02-06 05:12:32,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 211 transitions. [2025-02-06 05:12:32,379 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 211 transitions. Word has length 141 [2025-02-06 05:12:32,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:12:32,380 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 211 transitions. [2025-02-06 05:12:32,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-06 05:12:32,383 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 211 transitions. [2025-02-06 05:12:32,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-02-06 05:12:32,386 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:32,386 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 05:12:32,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 05:12:32,387 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:32,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:32,388 INFO L85 PathProgramCache]: Analyzing trace with hash -614702148, now seen corresponding path program 1 times [2025-02-06 05:12:32,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:32,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799136867] [2025-02-06 05:12:32,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:32,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:36,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-06 05:12:36,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-06 05:12:36,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:36,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:40,913 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-02-06 05:12:40,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:12:40,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799136867] [2025-02-06 05:12:40,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799136867] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:12:40,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632848375] [2025-02-06 05:12:40,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:40,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:40,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:40,918 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 05:12:40,919 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 05:12:45,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-06 05:12:46,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-06 05:12:46,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:46,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:46,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 4367 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-02-06 05:12:46,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:12:46,822 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 05:12:48,532 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-02-06 05:12:48,533 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:12:48,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632848375] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:12:48,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:12:48,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 15 [2025-02-06 05:12:48,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036675589] [2025-02-06 05:12:48,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:12:48,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 05:12:48,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:12:48,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 05:12:48,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2025-02-06 05:12:48,535 INFO L87 Difference]: Start difference. First operand 173 states and 211 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-02-06 05:12:52,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:12:52,725 INFO L93 Difference]: Finished difference Result 309 states and 379 transitions. [2025-02-06 05:12:52,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 05:12:52,726 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 147 [2025-02-06 05:12:52,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:12:52,730 INFO L225 Difference]: With dead ends: 309 [2025-02-06 05:12:52,730 INFO L226 Difference]: Without dead ends: 197 [2025-02-06 05:12:52,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2025-02-06 05:12:52,732 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 124 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-02-06 05:12:52,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1256 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-02-06 05:12:52,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2025-02-06 05:12:52,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2025-02-06 05:12:52,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 129 states have (on average 1.1550387596899225) internal successors, (149), 131 states have internal predecessors, (149), 41 states have call successors, (41), 21 states have call predecessors, (41), 23 states have return successors, (43), 41 states have call predecessors, (43), 40 states have call successors, (43) [2025-02-06 05:12:52,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 233 transitions. [2025-02-06 05:12:52,757 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 233 transitions. Word has length 147 [2025-02-06 05:12:52,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:12:52,758 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 233 transitions. [2025-02-06 05:12:52,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-02-06 05:12:52,758 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 233 transitions. [2025-02-06 05:12:52,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-02-06 05:12:52,760 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:12:52,761 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 05:12:52,782 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 05:12:52,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:52,961 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:12:52,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:12:52,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1185953381, now seen corresponding path program 1 times [2025-02-06 05:12:52,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:12:52,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726999670] [2025-02-06 05:12:52,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:52,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:12:57,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-06 05:12:57,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-06 05:12:57,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:12:57,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:12:58,556 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-02-06 05:12:58,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:12:58,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726999670] [2025-02-06 05:12:58,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726999670] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:12:58,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892046199] [2025-02-06 05:12:58,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:12:58,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:12:58,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:12:58,559 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 05:12:58,562 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 05:13:03,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-06 05:13:03,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-06 05:13:03,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:03,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:03,632 INFO L256 TraceCheckSpWp]: Trace formula consists of 4362 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 05:13:03,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:13:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-02-06 05:13:04,570 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:13:04,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892046199] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:13:04,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:13:04,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 05:13:04,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984215303] [2025-02-06 05:13:04,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:13:04,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:13:04,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:13:04,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:13:04,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-06 05:13:04,575 INFO L87 Difference]: Start difference. First operand 194 states and 233 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 05:13:06,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:13:06,146 INFO L93 Difference]: Finished difference Result 316 states and 387 transitions. [2025-02-06 05:13:06,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:13:06,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 147 [2025-02-06 05:13:06,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:13:06,149 INFO L225 Difference]: With dead ends: 316 [2025-02-06 05:13:06,149 INFO L226 Difference]: Without dead ends: 199 [2025-02-06 05:13:06,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-02-06 05:13:06,153 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 200 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-06 05:13:06,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 692 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-06 05:13:06,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2025-02-06 05:13:06,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 196. [2025-02-06 05:13:06,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 130 states have (on average 1.1538461538461537) internal successors, (150), 132 states have internal predecessors, (150), 42 states have call successors, (42), 21 states have call predecessors, (42), 23 states have return successors, (44), 42 states have call predecessors, (44), 41 states have call successors, (44) [2025-02-06 05:13:06,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 236 transitions. [2025-02-06 05:13:06,184 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 236 transitions. Word has length 147 [2025-02-06 05:13:06,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:13:06,185 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 236 transitions. [2025-02-06 05:13:06,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 05:13:06,186 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 236 transitions. [2025-02-06 05:13:06,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-02-06 05:13:06,190 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:13:06,190 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 05:13:06,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 05:13:06,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:06,391 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:13:06,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:13:06,392 INFO L85 PathProgramCache]: Analyzing trace with hash -466292498, now seen corresponding path program 1 times [2025-02-06 05:13:06,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:13:06,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390573365] [2025-02-06 05:13:06,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:06,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:13:10,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-02-06 05:13:10,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-02-06 05:13:10,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:10,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2025-02-06 05:13:12,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:13:12,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390573365] [2025-02-06 05:13:12,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390573365] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:13:12,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448529338] [2025-02-06 05:13:12,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:12,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:12,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:13:12,985 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 05:13:12,987 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 05:13:17,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-02-06 05:13:18,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-02-06 05:13:18,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:18,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:13:18,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 4391 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-02-06 05:13:18,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:13:19,881 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2025-02-06 05:13:19,881 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:13:19,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448529338] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:13:19,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:13:19,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2025-02-06 05:13:19,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228745644] [2025-02-06 05:13:19,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:13:19,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 05:13:19,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:13:19,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 05:13:19,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2025-02-06 05:13:19,884 INFO L87 Difference]: Start difference. First operand 196 states and 236 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-06 05:13:21,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:13:21,559 INFO L93 Difference]: Finished difference Result 325 states and 399 transitions. [2025-02-06 05:13:21,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 05:13:21,560 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 153 [2025-02-06 05:13:21,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:13:21,562 INFO L225 Difference]: With dead ends: 325 [2025-02-06 05:13:21,562 INFO L226 Difference]: Without dead ends: 206 [2025-02-06 05:13:21,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2025-02-06 05:13:21,563 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 0 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-06 05:13:21,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1504 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-06 05:13:21,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2025-02-06 05:13:21,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 202. [2025-02-06 05:13:21,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 134 states have (on average 1.1492537313432836) internal successors, (154), 137 states have internal predecessors, (154), 42 states have call successors, (42), 21 states have call predecessors, (42), 25 states have return successors, (49), 43 states have call predecessors, (49), 41 states have call successors, (49) [2025-02-06 05:13:21,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 245 transitions. [2025-02-06 05:13:21,578 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 245 transitions. Word has length 153 [2025-02-06 05:13:21,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:13:21,578 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 245 transitions. [2025-02-06 05:13:21,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-02-06 05:13:21,579 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 245 transitions. [2025-02-06 05:13:21,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-02-06 05:13:21,583 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:13:21,583 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:13:21,608 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 05:13:21,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:13:21,783 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:13:21,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:13:21,784 INFO L85 PathProgramCache]: Analyzing trace with hash 494535637, now seen corresponding path program 1 times [2025-02-06 05:13:21,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:13:21,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131451115] [2025-02-06 05:13:21,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:13:21,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:13:25,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-06 05:13:25,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 05:13:25,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:13:25,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat