./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_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_begin_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 c3fefd4a3fa45c7535dc41b0ccf3bb4989a6d3f39e95f31dc5e87197d363f726 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:15:34,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:15:34,442 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:15:34,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:15:34,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:15:34,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:15:34,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:15:34,475 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:15:34,475 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:15:34,475 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:15:34,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:15:34,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:15:34,476 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:15:34,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:15:34,476 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:15:34,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:15:34,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:15:34,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:15:34,477 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:34,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:34,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:15:34,477 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:15:34,478 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:15:34,478 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:15:34,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:15:34,478 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 -> c3fefd4a3fa45c7535dc41b0ccf3bb4989a6d3f39e95f31dc5e87197d363f726 [2025-01-09 17:15:34,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:15:34,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:15:34,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:15:34,724 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:15:34,724 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:15:34,725 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness_negated.i [2025-01-09 17:15:35,826 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0e9e5adf0/994afef44fce4bd186345c23eba5348c/FLAGf2318875b [2025-01-09 17:15:36,274 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:15:36,276 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness_negated.i [2025-01-09 17:15:36,309 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0e9e5adf0/994afef44fce4bd186345c23eba5348c/FLAGf2318875b [2025-01-09 17:15:36,320 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0e9e5adf0/994afef44fce4bd186345c23eba5348c [2025-01-09 17:15:36,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:15:36,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:15:36,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:15:36,325 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:15:36,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:15:36,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:15:36" (1/1) ... [2025-01-09 17:15:36,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60643840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:36, skipping insertion in model container [2025-01-09 17:15:36,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:15:36" (1/1) ... [2025-01-09 17:15:36,403 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:15:36,611 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_begin_harness_negated.i[4493,4506] [2025-01-09 17:15:36,618 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_begin_harness_negated.i[4553,4566] [2025-01-09 17:15:37,745 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:37,746 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:37,746 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:37,746 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:37,747 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:37,755 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:37,756 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:37,757 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:37,757 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:37,758 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:37,759 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:37,759 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:37,759 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,678 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,680 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,708 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,709 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,716 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,717 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,733 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,734 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,734 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,735 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,735 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,736 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,736 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,770 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_begin_harness_negated.i[227849,227862] [2025-01-09 17:15:38,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:15:38,796 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:15:38,804 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_begin_harness_negated.i[4493,4506] [2025-01-09 17:15:38,804 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_begin_harness_negated.i[4553,4566] [2025-01-09 17:15:38,830 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,831 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,839 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,840 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,840 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,840 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,841 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,841 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,841 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,841 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:38,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2025-01-09 17:15:39,005 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:39,005 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:39,010 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:39,011 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:39,012 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:39,012 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:39,020 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:39,020 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:39,021 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:39,021 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:39,021 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:39,022 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:39,022 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:15:39,035 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_begin_harness_negated.i[227849,227862] [2025-01-09 17:15:39,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:15:39,176 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:15:39,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39 WrapperNode [2025-01-09 17:15:39,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:15:39,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:15:39,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:15:39,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:15:39,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (1/1) ... [2025-01-09 17:15:39,235 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (1/1) ... [2025-01-09 17:15:39,299 INFO L138 Inliner]: procedures = 763, calls = 2441, calls flagged for inlining = 68, calls inlined = 11, statements flattened = 623 [2025-01-09 17:15:39,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:15:39,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:15:39,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:15:39,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:15:39,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (1/1) ... [2025-01-09 17:15:39,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (1/1) ... [2025-01-09 17:15:39,326 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (1/1) ... [2025-01-09 17:15:39,389 INFO L175 MemorySlicer]: Split 339 memory accesses to 8 slices as follows [2, 6, 247, 23, 51, 3, 2, 5]. 73 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 6, 0, 9, 0, 0, 5]. The 249 writes are split as follows [0, 2, 233, 1, 11, 1, 1, 0]. [2025-01-09 17:15:39,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (1/1) ... [2025-01-09 17:15:39,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (1/1) ... [2025-01-09 17:15:39,418 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (1/1) ... [2025-01-09 17:15:39,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (1/1) ... [2025-01-09 17:15:39,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (1/1) ... [2025-01-09 17:15:39,431 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (1/1) ... [2025-01-09 17:15:39,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (1/1) ... [2025-01-09 17:15:39,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:15:39,453 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:15:39,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:15:39,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:15:39,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (1/1) ... [2025-01-09 17:15:39,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:15:39,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:15:39,482 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 17:15:39,485 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 17:15:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 17:15:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 17:15:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 17:15:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 17:15:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-01-09 17:15:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-01-09 17:15:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-01-09 17:15:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-01-09 17:15:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:15:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:15:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_begin [2025-01-09 17:15:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_begin [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-01-09 17:15:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-01-09 17:15:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:15:39,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:15:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:15:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:15:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure s_get_next_element [2025-01-09 17:15:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure s_get_next_element [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-01-09 17:15:39,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-01-09 17:15:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-09 17:15:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-09 17:15:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-09 17:15:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-01-09 17:15:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-01-09 17:15:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-01-09 17:15:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-01-09 17:15:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:15:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-01-09 17:15:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-01-09 17:15:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-01-09 17:15:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:15:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-01-09 17:15:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:15:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:15:39,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:15:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:15:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:15:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:15:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:15:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 17:15:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 17:15:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-01-09 17:15:39,511 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-01-09 17:15:39,758 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:15:39,760 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:15:39,965 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-09 17:15:40,016 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2025-01-09 17:15:40,016 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2025-01-09 17:15:45,573 INFO L? ?]: Removed 191 outVars from TransFormulas that were not future-live. [2025-01-09 17:15:45,573 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:15:45,581 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:15:45,581 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 17:15:45,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:15:45 BoogieIcfgContainer [2025-01-09 17:15:45,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:15:45,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:15:45,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:15:45,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:15:45,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:15:36" (1/3) ... [2025-01-09 17:15:45,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9956b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:15:45, skipping insertion in model container [2025-01-09 17:15:45,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:15:39" (2/3) ... [2025-01-09 17:15:45,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9956b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:15:45, skipping insertion in model container [2025-01-09 17:15:45,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:15:45" (3/3) ... [2025-01-09 17:15:45,589 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_begin_harness_negated.i [2025-01-09 17:15:45,599 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:15:45,602 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_begin_harness_negated.i that has 25 procedures, 203 locations, 1 initial locations, 11 loop locations, and 1 error locations. [2025-01-09 17:15:45,651 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:15:45,658 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;@3bc413d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:15:45,659 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:15:45,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 118 states have (on average 1.2542372881355932) internal successors, (148), 117 states have internal predecessors, (148), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-01-09 17:15:45,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-01-09 17:15:45,673 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:15:45,674 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:15:45,675 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:15:45,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:15:45,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1630302473, now seen corresponding path program 1 times [2025-01-09 17:15:45,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:15:45,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388913311] [2025-01-09 17:15:45,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:15:45,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:15:50,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-01-09 17:15:50,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-01-09 17:15:50,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:15:50,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:15:51,638 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-01-09 17:15:51,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:15:51,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388913311] [2025-01-09 17:15:51,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388913311] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:15:51,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586694136] [2025-01-09 17:15:51,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:15:51,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:15:51,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:15:51,642 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 17:15:51,644 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 17:15:55,651 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-01-09 17:15:56,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-01-09 17:15:56,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:15:56,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:15:56,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 4547 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:15:56,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:15:56,136 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-01-09 17:15:56,137 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:15:56,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586694136] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:15:56,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:15:56,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2025-01-09 17:15:56,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531852443] [2025-01-09 17:15:56,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:15:56,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:15:56,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:15:56,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:15:56,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:15:56,156 INFO L87 Difference]: Start difference. First operand has 175 states, 118 states have (on average 1.2542372881355932) internal successors, (148), 117 states have internal predecessors, (148), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 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 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 17:15:56,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:15:56,185 INFO L93 Difference]: Finished difference Result 341 states and 476 transitions. [2025-01-09 17:15:56,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:15:56,187 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 149 [2025-01-09 17:15:56,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:15:56,193 INFO L225 Difference]: With dead ends: 341 [2025-01-09 17:15:56,193 INFO L226 Difference]: Without dead ends: 168 [2025-01-09 17:15:56,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:15:56,197 INFO L435 NwaCegarLoop]: 221 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, 221 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 17:15:56,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:15:56,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-01-09 17:15:56,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2025-01-09 17:15:56,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 110 states have (on average 1.2363636363636363) internal successors, (136), 111 states have internal predecessors, (136), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-01-09 17:15:56,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 215 transitions. [2025-01-09 17:15:56,230 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 215 transitions. Word has length 149 [2025-01-09 17:15:56,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:15:56,232 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 215 transitions. [2025-01-09 17:15:56,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 17:15:56,233 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 215 transitions. [2025-01-09 17:15:56,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-01-09 17:15:56,237 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:15:56,238 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 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] [2025-01-09 17:15:56,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 17:15:56,438 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 17:15:56,439 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:15:56,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:15:56,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1464714317, now seen corresponding path program 1 times [2025-01-09 17:15:56,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:15:56,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827643684] [2025-01-09 17:15:56,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:15:56,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:00,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-01-09 17:16:00,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-01-09 17:16:00,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:00,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:01,189 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-01-09 17:16:01,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:01,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827643684] [2025-01-09 17:16:01,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827643684] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:01,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773032191] [2025-01-09 17:16:01,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:01,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:01,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:01,192 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 17:16:01,193 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 17:16:05,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-01-09 17:16:06,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-01-09 17:16:06,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:06,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:06,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 4572 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 17:16:06,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-01-09 17:16:09,555 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 17:16:13,233 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-01-09 17:16:13,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773032191] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:13,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 17:16:13,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 8] total 16 [2025-01-09 17:16:13,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187535531] [2025-01-09 17:16:13,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:13,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 17:16:13,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:13,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 17:16:13,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2025-01-09 17:16:13,235 INFO L87 Difference]: Start difference. First operand 168 states and 215 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-01-09 17:16:15,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:15,924 INFO L93 Difference]: Finished difference Result 246 states and 320 transitions. [2025-01-09 17:16:15,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 17:16:15,928 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 155 [2025-01-09 17:16:15,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:15,931 INFO L225 Difference]: With dead ends: 246 [2025-01-09 17:16:15,931 INFO L226 Difference]: Without dead ends: 176 [2025-01-09 17:16:15,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 298 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2025-01-09 17:16:15,932 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 215 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:15,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 882 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-01-09 17:16:15,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-01-09 17:16:15,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 170. [2025-01-09 17:16:15,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 111 states have (on average 1.2342342342342343) internal successors, (137), 113 states have internal predecessors, (137), 40 states have call successors, (40), 17 states have call predecessors, (40), 18 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2025-01-09 17:16:15,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 217 transitions. [2025-01-09 17:16:15,947 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 217 transitions. Word has length 155 [2025-01-09 17:16:15,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:15,947 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 217 transitions. [2025-01-09 17:16:15,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-01-09 17:16:15,948 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 217 transitions. [2025-01-09 17:16:15,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-01-09 17:16:15,950 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:15,950 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 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 17:16:15,966 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 17:16:16,151 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 17:16:16,151 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:16,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:16,151 INFO L85 PathProgramCache]: Analyzing trace with hash 176232720, now seen corresponding path program 1 times [2025-01-09 17:16:16,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:16,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903352438] [2025-01-09 17:16:16,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:16,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:19,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 17:16:19,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 17:16:19,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:19,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-01-09 17:16:20,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:20,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903352438] [2025-01-09 17:16:20,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903352438] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:20,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498637384] [2025-01-09 17:16:20,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:20,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:20,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:20,550 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 17:16:20,552 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 17:16:24,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 17:16:25,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 17:16:25,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:25,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:25,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 4577 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 17:16:25,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2025-01-09 17:16:25,161 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:16:25,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498637384] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:25,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:16:25,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-01-09 17:16:25,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224257633] [2025-01-09 17:16:25,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:25,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:16:25,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:25,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:16:25,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:16:25,162 INFO L87 Difference]: Start difference. First operand 170 states and 217 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-01-09 17:16:25,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:25,330 INFO L93 Difference]: Finished difference Result 333 states and 426 transitions. [2025-01-09 17:16:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:16:25,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 156 [2025-01-09 17:16:25,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:25,335 INFO L225 Difference]: With dead ends: 333 [2025-01-09 17:16:25,335 INFO L226 Difference]: Without dead ends: 175 [2025-01-09 17:16:25,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:16:25,336 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:25,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 844 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 17:16:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-01-09 17:16:25,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-01-09 17:16:25,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 115 states have (on average 1.2260869565217392) internal successors, (141), 117 states have internal predecessors, (141), 40 states have call successors, (40), 17 states have call predecessors, (40), 19 states have return successors, (41), 40 states have call predecessors, (41), 39 states have call successors, (41) [2025-01-09 17:16:25,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 222 transitions. [2025-01-09 17:16:25,350 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 222 transitions. Word has length 156 [2025-01-09 17:16:25,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:25,351 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 222 transitions. [2025-01-09 17:16:25,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2025-01-09 17:16:25,351 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 222 transitions. [2025-01-09 17:16:25,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-01-09 17:16:25,353 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:25,353 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:16:25,369 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 17:16:25,553 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 17:16:25,554 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:25,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:25,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1821471120, now seen corresponding path program 1 times [2025-01-09 17:16:25,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:25,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638300018] [2025-01-09 17:16:25,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:25,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:29,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 17:16:29,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 17:16:29,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:29,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:35,679 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2025-01-09 17:16:35,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:35,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638300018] [2025-01-09 17:16:35,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638300018] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:35,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:16:35,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-01-09 17:16:35,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482566762] [2025-01-09 17:16:35,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:35,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-09 17:16:35,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:35,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-09 17:16:35,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2025-01-09 17:16:35,681 INFO L87 Difference]: Start difference. First operand 175 states and 222 transitions. Second operand has 15 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 8 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2025-01-09 17:16:42,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:16:42,507 INFO L93 Difference]: Finished difference Result 271 states and 358 transitions. [2025-01-09 17:16:42,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-09 17:16:42,508 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 8 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 168 [2025-01-09 17:16:42,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:16:42,510 INFO L225 Difference]: With dead ends: 271 [2025-01-09 17:16:42,510 INFO L226 Difference]: Without dead ends: 199 [2025-01-09 17:16:42,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2025-01-09 17:16:42,511 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 60 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2025-01-09 17:16:42,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 2353 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2025-01-09 17:16:42,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2025-01-09 17:16:42,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 189. [2025-01-09 17:16:42,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 124 states have (on average 1.2338709677419355) internal successors, (153), 128 states have internal predecessors, (153), 43 states have call successors, (43), 17 states have call predecessors, (43), 21 states have return successors, (52), 43 states have call predecessors, (52), 42 states have call successors, (52) [2025-01-09 17:16:42,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 248 transitions. [2025-01-09 17:16:42,526 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 248 transitions. Word has length 168 [2025-01-09 17:16:42,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:16:42,526 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 248 transitions. [2025-01-09 17:16:42,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 8 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2025-01-09 17:16:42,527 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 248 transitions. [2025-01-09 17:16:42,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-01-09 17:16:42,528 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:16:42,528 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:16:42,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 17:16:42,528 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:16:42,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:16:42,529 INFO L85 PathProgramCache]: Analyzing trace with hash 16032786, now seen corresponding path program 1 times [2025-01-09 17:16:42,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:16:42,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427208435] [2025-01-09 17:16:42,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:42,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:16:46,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 17:16:46,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 17:16:46,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:46,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2025-01-09 17:16:49,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:16:49,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427208435] [2025-01-09 17:16:49,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427208435] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:16:49,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144875790] [2025-01-09 17:16:49,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:16:49,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:16:49,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:16:49,635 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 17:16:49,638 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 17:16:54,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 17:16:54,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 17:16:54,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:16:54,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:16:54,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 4580 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-01-09 17:16:54,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:16:56,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2025-01-09 17:16:57,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-01-09 17:16:59,151 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2025-01-09 17:16:59,152 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:16:59,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144875790] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:16:59,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:16:59,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [10] total 22 [2025-01-09 17:16:59,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827206751] [2025-01-09 17:16:59,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:16:59,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 17:16:59,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:16:59,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 17:16:59,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2025-01-09 17:16:59,153 INFO L87 Difference]: Start difference. First operand 189 states and 248 transitions. Second operand has 14 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 8 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2025-01-09 17:17:03,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]