./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_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 d34d53474a6dd5633bd951a9e5bfed12ba51b1f6f82e68b7dee25b33fb7badae --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:15:39,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:15:39,373 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:15:39,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:15:39,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:15:39,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:15:39,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:15:39,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:15:39,391 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:15:39,391 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:15:39,391 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:15:39,391 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:15:39,392 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:15:39,392 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:15:39,392 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:15:39,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:15:39,392 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:15:39,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:15:39,392 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:15:39,392 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:15:39,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:15:39,392 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:15:39,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:15:39,393 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:15:39,393 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:15:39,393 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:15:39,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:15:39,393 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:15:39,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:15:39,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:39,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:15:39,393 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:15:39,393 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:15:39,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:15:39,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:39,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:15:39,394 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:15:39,394 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:15:39,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:15:39,394 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:15:39,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:15:39,394 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:15:39,394 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:15:39,394 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:15:39,394 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:15:39,394 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 -> d34d53474a6dd5633bd951a9e5bfed12ba51b1f6f82e68b7dee25b33fb7badae [2025-01-09 17:15:39,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:15:39,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:15:39,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:15:39,608 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:15:39,608 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:15:39,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness_negated.i [2025-01-09 17:15:40,772 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2a38e1aeb/1afcbe689f3b4ac2971074fc1a20912f/FLAG5ec2c8d63 [2025-01-09 17:15:41,228 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:15:41,228 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness_negated.i [2025-01-09 17:15:41,259 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2a38e1aeb/1afcbe689f3b4ac2971074fc1a20912f/FLAG5ec2c8d63 [2025-01-09 17:15:41,273 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2a38e1aeb/1afcbe689f3b4ac2971074fc1a20912f [2025-01-09 17:15:41,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:15:41,276 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:15:41,276 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:15:41,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:15:41,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:15:41,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:15:41" (1/1) ... [2025-01-09 17:15:41,281 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ddf03e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:41, skipping insertion in model container [2025-01-09 17:15:41,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:15:41" (1/1) ... [2025-01-09 17:15:41,362 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:15:41,552 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness_negated.i[4492,4505] [2025-01-09 17:15:41,561 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness_negated.i[4552,4565] [2025-01-09 17:15:42,122 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,122 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,123 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,123 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,125 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,134 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,134 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,135 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,136 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,137 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,137 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,138 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,138 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,725 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,726 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,737 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,738 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,740 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,741 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,748 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,749 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,749 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,749 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,750 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,750 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,750 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,769 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness_negated.i[228343,228356] [2025-01-09 17:15:42,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:15:42,786 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:15:42,794 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness_negated.i[4492,4505] [2025-01-09 17:15:42,794 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness_negated.i[4552,4565] [2025-01-09 17:15:42,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,818 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,821 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,821 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,822 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,822 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,823 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,823 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,823 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,824 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2025-01-09 17:15:42,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,990 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,994 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,995 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,997 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:42,998 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:43,003 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:43,005 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:43,005 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:43,005 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:43,005 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:43,005 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:43,006 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:43,020 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_iter_done_harness_negated.i[228343,228356] [2025-01-09 17:15:43,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:15:43,191 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:15:43,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43 WrapperNode [2025-01-09 17:15:43,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:15:43,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:15:43,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:15:43,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:15:43,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (1/1) ... [2025-01-09 17:15:43,275 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (1/1) ... [2025-01-09 17:15:43,325 INFO L138 Inliner]: procedures = 763, calls = 2449, calls flagged for inlining = 68, calls inlined = 11, statements flattened = 644 [2025-01-09 17:15:43,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:15:43,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:15:43,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:15:43,326 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:15:43,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (1/1) ... [2025-01-09 17:15:43,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (1/1) ... [2025-01-09 17:15:43,367 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (1/1) ... [2025-01-09 17:15:43,416 INFO L175 MemorySlicer]: Split 318 memory accesses to 9 slices as follows [238, 2, 2, 6, 7, 19, 3, 36, 5]. 75 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [6, 2, 0, 0, 0, 0, 0, 9, 5]. The 239 writes are split as follows [232, 0, 1, 2, 1, 1, 1, 1, 0]. [2025-01-09 17:15:43,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (1/1) ... [2025-01-09 17:15:43,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (1/1) ... [2025-01-09 17:15:43,438 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (1/1) ... [2025-01-09 17:15:43,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (1/1) ... [2025-01-09 17:15:43,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (1/1) ... [2025-01-09 17:15:43,458 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (1/1) ... [2025-01-09 17:15:43,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (1/1) ... [2025-01-09 17:15:43,475 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:15:43,480 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:15:43,480 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:15:43,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:15:43,481 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (1/1) ... [2025-01-09 17:15:43,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:43,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:15:43,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 17:15:43,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 17:15:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 17:15:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 17:15:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 17:15:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 17:15:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-01-09 17:15:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-01-09 17:15:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-01-09 17:15:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-01-09 17:15:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-01-09 17:15:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:15:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:15:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:15:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:15:43,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:15:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:15:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:15:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 17:15:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 17:15:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-01-09 17:15:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:15:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:15:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:15:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:15:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:15:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:15:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 17:15:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 17:15:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 17:15:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_done [2025-01-09 17:15:43,538 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_done [2025-01-09 17:15:43,538 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:15:43,538 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:15:43,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:15:43,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:15:43,538 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-01-09 17:15:43,538 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-01-09 17:15:43,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:15:43,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:15:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-01-09 17:15:43,539 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-01-09 17:15:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:15:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:15:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:15:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:15:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:15:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:15:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 17:15:43,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 17:15:43,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-01-09 17:15:43,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:15:43,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:15:43,540 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:15:43,540 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:15:43,540 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:15:43,540 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:15:43,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:15:43,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:15:43,541 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-01-09 17:15:43,541 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-01-09 17:15:43,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:15:43,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:15:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:15:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:15:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:15:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 17:15:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 17:15:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-01-09 17:15:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-01-09 17:15:43,542 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-01-09 17:15:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:15:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:15:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:15:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:15:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:15:43,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:15:43,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 17:15:43,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-01-09 17:15:43,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-01-09 17:15:43,543 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:15:43,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:15:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-01-09 17:15:43,544 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-01-09 17:15:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:15:43,544 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:15:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:15:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:15:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:15:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:15:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:15:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:15:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 17:15:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 17:15:43,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 17:15:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:15:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:15:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:15:43,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:15:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:15:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:15:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 17:15:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 17:15:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 17:15:43,546 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-01-09 17:15:43,546 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-01-09 17:15:43,843 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:15:43,845 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:15:49,793 INFO L? ?]: Removed 154 outVars from TransFormulas that were not future-live. [2025-01-09 17:15:49,793 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:15:49,800 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:15:49,800 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 17:15:49,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:15:49 BoogieIcfgContainer [2025-01-09 17:15:49,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:15:49,802 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:15:49,802 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:15:49,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:15:49,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:15:41" (1/3) ... [2025-01-09 17:15:49,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d440f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:15:49, skipping insertion in model container [2025-01-09 17:15:49,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:43" (2/3) ... [2025-01-09 17:15:49,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d440f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:15:49, skipping insertion in model container [2025-01-09 17:15:49,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:15:49" (3/3) ... [2025-01-09 17:15:49,806 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_done_harness_negated.i [2025-01-09 17:15:49,815 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:15:49,816 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_done_harness_negated.i that has 16 procedures, 163 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 17:15:49,847 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:15:49,854 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;@44fd5e62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:15:49,854 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:15:49,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 106 states have (on average 1.2452830188679245) internal successors, (132), 107 states have internal predecessors, (132), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-01-09 17:15:49,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 17:15:49,865 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:15:49,866 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:15:49,867 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:15:49,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:15:49,871 INFO L85 PathProgramCache]: Analyzing trace with hash 989145246, now seen corresponding path program 1 times [2025-01-09 17:15:49,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:15:49,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063171706] [2025-01-09 17:15:49,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:15:49,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:15:54,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 17:15:54,805 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 17:15:54,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:15:54,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:15:55,250 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2025-01-09 17:15:55,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:15:55,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063171706] [2025-01-09 17:15:55,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063171706] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:15:55,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300084987] [2025-01-09 17:15:55,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:15:55,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:15:55,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:15:55,254 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:15:55,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 17:15:59,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 17:15:59,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 17:15:59,964 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:15:59,964 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:15:59,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 4443 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:15:59,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:00,006 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2025-01-09 17:16:00,006 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:16:00,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300084987] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:00,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:16:00,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:16:00,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293166551] [2025-01-09 17:16:00,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:00,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:16:00,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:00,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:16:00,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:16:00,039 INFO L87 Difference]: Start difference. First operand has 163 states, 106 states have (on average 1.2452830188679245) internal successors, (132), 107 states have internal predecessors, (132), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 17:16:00,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:00,074 INFO L93 Difference]: Finished difference Result 318 states and 446 transitions. [2025-01-09 17:16:00,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:16:00,076 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2025-01-09 17:16:00,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:00,085 INFO L225 Difference]: With dead ends: 318 [2025-01-09 17:16:00,085 INFO L226 Difference]: Without dead ends: 157 [2025-01-09 17:16:00,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:16:00,091 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:00,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:16:00,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-01-09 17:16:00,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2025-01-09 17:16:00,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 101 states have (on average 1.2277227722772277) internal successors, (124), 102 states have internal predecessors, (124), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-01-09 17:16:00,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 203 transitions. [2025-01-09 17:16:00,130 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 203 transitions. Word has length 142 [2025-01-09 17:16:00,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:00,135 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 203 transitions. [2025-01-09 17:16:00,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 17:16:00,135 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 203 transitions. [2025-01-09 17:16:00,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 17:16:00,139 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:00,140 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:16:00,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 17:16:00,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 17:16:00,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:00,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:00,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1365154082, now seen corresponding path program 1 times [2025-01-09 17:16:00,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:00,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768691377] [2025-01-09 17:16:00,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:00,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:04,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 17:16:04,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 17:16:04,396 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:04,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:05,391 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-01-09 17:16:05,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:05,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768691377] [2025-01-09 17:16:05,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768691377] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:05,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207500825] [2025-01-09 17:16:05,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:05,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:05,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:05,395 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:16:05,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 17:16:09,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 17:16:09,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 17:16:09,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:09,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:09,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 4443 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 17:16:09,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:12,149 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 115 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-01-09 17:16:12,150 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:16:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2025-01-09 17:16:14,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207500825] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 17:16:14,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 17:16:14,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 12 [2025-01-09 17:16:14,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804514950] [2025-01-09 17:16:14,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 17:16:14,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-09 17:16:14,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:14,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-09 17:16:14,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-01-09 17:16:14,886 INFO L87 Difference]: Start difference. First operand 157 states and 203 transitions. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) [2025-01-09 17:16:18,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:18,960 INFO L93 Difference]: Finished difference Result 313 states and 410 transitions. [2025-01-09 17:16:18,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 17:16:18,961 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) Word has length 142 [2025-01-09 17:16:18,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:18,968 INFO L225 Difference]: With dead ends: 313 [2025-01-09 17:16:18,968 INFO L226 Difference]: Without dead ends: 168 [2025-01-09 17:16:18,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 277 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2025-01-09 17:16:18,969 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 181 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:18,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1275 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2025-01-09 17:16:18,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-01-09 17:16:18,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2025-01-09 17:16:18,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 106 states have (on average 1.2169811320754718) internal successors, (129), 108 states have internal predecessors, (129), 40 states have call successors, (40), 15 states have call predecessors, (40), 17 states have return successors, (42), 40 states have call predecessors, (42), 39 states have call successors, (42) [2025-01-09 17:16:18,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 211 transitions. [2025-01-09 17:16:18,998 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 211 transitions. Word has length 142 [2025-01-09 17:16:19,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:19,000 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 211 transitions. [2025-01-09 17:16:19,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) [2025-01-09 17:16:19,003 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 211 transitions. [2025-01-09 17:16:19,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-01-09 17:16:19,006 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:19,007 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:16:19,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 17:16:19,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:19,208 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:19,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:19,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1821105164, now seen corresponding path program 1 times [2025-01-09 17:16:19,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:19,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171171290] [2025-01-09 17:16:19,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:19,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:22,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-01-09 17:16:22,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-01-09 17:16:22,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:22,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:26,108 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-01-09 17:16:26,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:26,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171171290] [2025-01-09 17:16:26,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171171290] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:26,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807821021] [2025-01-09 17:16:26,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:26,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:26,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:26,111 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:16:26,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 17:16:30,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-01-09 17:16:30,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-01-09 17:16:30,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:30,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:30,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 4456 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 17:16:30,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 67 proven. 81 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-01-09 17:16:34,046 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:16:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-01-09 17:16:38,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807821021] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:38,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 17:16:38,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 8] total 21 [2025-01-09 17:16:38,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752671112] [2025-01-09 17:16:38,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:38,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 17:16:38,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:38,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 17:16:38,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2025-01-09 17:16:38,231 INFO L87 Difference]: Start difference. First operand 164 states and 211 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 5 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2025-01-09 17:16:41,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:41,939 INFO L93 Difference]: Finished difference Result 247 states and 322 transitions. [2025-01-09 17:16:41,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 17:16:41,940 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 5 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) Word has length 155 [2025-01-09 17:16:41,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:41,942 INFO L225 Difference]: With dead ends: 247 [2025-01-09 17:16:41,942 INFO L226 Difference]: Without dead ends: 166 [2025-01-09 17:16:41,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 300 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2025-01-09 17:16:41,943 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 215 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:41,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 899 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-01-09 17:16:41,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2025-01-09 17:16:41,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 162. [2025-01-09 17:16:41,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 105 states have (on average 1.2095238095238094) internal successors, (127), 106 states have internal predecessors, (127), 40 states have call successors, (40), 15 states have call predecessors, (40), 16 states have return successors, (40), 40 states have call predecessors, (40), 39 states have call successors, (40) [2025-01-09 17:16:41,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 207 transitions. [2025-01-09 17:16:41,968 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 207 transitions. Word has length 155 [2025-01-09 17:16:41,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:41,969 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 207 transitions. [2025-01-09 17:16:41,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 5 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2025-01-09 17:16:41,969 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 207 transitions. [2025-01-09 17:16:41,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-01-09 17:16:41,970 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:41,970 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:16:41,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 17:16:42,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:42,171 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:42,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:42,172 INFO L85 PathProgramCache]: Analyzing trace with hash -2105315130, now seen corresponding path program 1 times [2025-01-09 17:16:42,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:42,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89543533] [2025-01-09 17:16:42,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:42,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:45,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 17:16:45,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 17:16:45,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:45,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:48,644 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2025-01-09 17:16:48,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:48,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89543533] [2025-01-09 17:16:48,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89543533] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:48,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:16:48,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 17:16:48,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056028552] [2025-01-09 17:16:48,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:48,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 17:16:48,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:48,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 17:16:48,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-01-09 17:16:48,647 INFO L87 Difference]: Start difference. First operand 162 states and 207 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2025-01-09 17:16:50,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:50,964 INFO L93 Difference]: Finished difference Result 308 states and 396 transitions. [2025-01-09 17:16:50,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 17:16:50,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 156 [2025-01-09 17:16:50,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:50,968 INFO L225 Difference]: With dead ends: 308 [2025-01-09 17:16:50,968 INFO L226 Difference]: Without dead ends: 170 [2025-01-09 17:16:50,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-01-09 17:16:50,970 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 27 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:50,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 1187 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-01-09 17:16:50,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2025-01-09 17:16:50,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2025-01-09 17:16:50,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 111 states have internal predecessors, (132), 40 states have call successors, (40), 15 states have call predecessors, (40), 17 states have return successors, (41), 40 states have call predecessors, (41), 39 states have call successors, (41) [2025-01-09 17:16:50,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 213 transitions. [2025-01-09 17:16:50,997 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 213 transitions. Word has length 156 [2025-01-09 17:16:50,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:50,997 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 213 transitions. [2025-01-09 17:16:50,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2025-01-09 17:16:50,997 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 213 transitions. [2025-01-09 17:16:50,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-01-09 17:16:50,998 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:50,998 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:16:50,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 17:16:51,002 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:51,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:51,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1418918600, now seen corresponding path program 1 times [2025-01-09 17:16:51,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:51,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882268900] [2025-01-09 17:16:51,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:51,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:54,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 17:16:54,602 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 17:16:54,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:54,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:55,450 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2025-01-09 17:16:55,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:55,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882268900] [2025-01-09 17:16:55,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882268900] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:55,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:16:55,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:16:55,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768631070] [2025-01-09 17:16:55,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:55,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:16:55,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:55,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:16:55,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:16:55,453 INFO L87 Difference]: Start difference. First operand 167 states and 213 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 17:16:55,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:55,670 INFO L93 Difference]: Finished difference Result 315 states and 403 transitions. [2025-01-09 17:16:55,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:16:55,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 156 [2025-01-09 17:16:55,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:55,673 INFO L225 Difference]: With dead ends: 315 [2025-01-09 17:16:55,673 INFO L226 Difference]: Without dead ends: 172 [2025-01-09 17:16:55,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:16:55,674 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 22 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:55,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 558 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 17:16:55,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2025-01-09 17:16:55,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2025-01-09 17:16:55,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 110 states have (on average 1.209090909090909) internal successors, (133), 112 states have internal predecessors, (133), 41 states have call successors, (41), 15 states have call predecessors, (41), 17 states have return successors, (42), 41 states have call predecessors, (42), 40 states have call successors, (42) [2025-01-09 17:16:55,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 216 transitions. [2025-01-09 17:16:55,682 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 216 transitions. Word has length 156 [2025-01-09 17:16:55,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:55,683 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 216 transitions. [2025-01-09 17:16:55,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 17:16:55,683 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 216 transitions. [2025-01-09 17:16:55,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-01-09 17:16:55,684 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:55,684 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:16:55,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 17:16:55,684 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:55,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:55,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1963552108, now seen corresponding path program 1 times [2025-01-09 17:16:55,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:55,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495044524] [2025-01-09 17:16:55,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:55,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:59,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-01-09 17:16:59,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-01-09 17:16:59,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:59,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:01,030 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2025-01-09 17:17:01,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:01,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495044524] [2025-01-09 17:17:01,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495044524] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:01,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:17:01,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 17:17:01,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386507431] [2025-01-09 17:17:01,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:01,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:17:01,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:01,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:17:01,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:17:01,032 INFO L87 Difference]: Start difference. First operand 169 states and 216 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2025-01-09 17:17:01,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:01,755 INFO L93 Difference]: Finished difference Result 317 states and 414 transitions. [2025-01-09 17:17:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 17:17:01,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 162 [2025-01-09 17:17:01,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:01,758 INFO L225 Difference]: With dead ends: 317 [2025-01-09 17:17:01,759 INFO L226 Difference]: Without dead ends: 170 [2025-01-09 17:17:01,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:17:01,760 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 3 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:01,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1149 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 17:17:01,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2025-01-09 17:17:01,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 169. [2025-01-09 17:17:01,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 110 states have (on average 1.2) internal successors, (132), 112 states have internal predecessors, (132), 41 states have call successors, (41), 15 states have call predecessors, (41), 17 states have return successors, (42), 41 states have call predecessors, (42), 40 states have call successors, (42) [2025-01-09 17:17:01,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 215 transitions. [2025-01-09 17:17:01,774 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 215 transitions. Word has length 162 [2025-01-09 17:17:01,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:01,775 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 215 transitions. [2025-01-09 17:17:01,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2025-01-09 17:17:01,775 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 215 transitions. [2025-01-09 17:17:01,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-01-09 17:17:01,777 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:01,777 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:17:01,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 17:17:01,778 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:01,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:01,778 INFO L85 PathProgramCache]: Analyzing trace with hash 194666249, now seen corresponding path program 1 times [2025-01-09 17:17:01,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:01,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683877107] [2025-01-09 17:17:01,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:01,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:05,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-01-09 17:17:05,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-01-09 17:17:05,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:05,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:08,541 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-01-09 17:17:08,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:08,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683877107] [2025-01-09 17:17:08,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683877107] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:08,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878643183] [2025-01-09 17:17:08,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:08,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:08,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:08,544 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 17:17:08,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 17:17:13,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-01-09 17:17:13,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-01-09 17:17:13,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:13,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:13,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 4517 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-09 17:17:13,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:17:14,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1