./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_table_clear_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dd5e0a204807afb29e9a73f02b18d8e64fc0751466c350fae08f7d9700c18247 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:17:02,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:17:02,827 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:17:02,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:17:02,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:17:02,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:17:02,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:17:02,866 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:17:02,866 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:17:02,866 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:17:02,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:17:02,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:17:02,867 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:17:02,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:17:02,867 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:17:02,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:17:02,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:17:02,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:17:02,868 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:17:02,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:17:02,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:17:02,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:17:02,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:17:02,868 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:17:02,868 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:17:02,869 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:17:02,869 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:17:02,869 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:17:02,869 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:17:02,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:17:02,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:17:02,869 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:17:02,869 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:17:02,869 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:17:02,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:17:02,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:17:02,870 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:17:02,870 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:17:02,870 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:17:02,870 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:17:02,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:17:02,870 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:17:02,870 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:17:02,870 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:17:02,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:17:02,871 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd5e0a204807afb29e9a73f02b18d8e64fc0751466c350fae08f7d9700c18247 [2025-01-09 17:17:03,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:17:03,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:17:03,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:17:03,105 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:17:03,105 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:17:03,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i [2025-01-09 17:17:04,195 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a70b564da/b526cc2fd1624813ab6d40895d6a8a02/FLAG49d28246c [2025-01-09 17:17:04,637 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:17:04,638 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i [2025-01-09 17:17:04,666 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a70b564da/b526cc2fd1624813ab6d40895d6a8a02/FLAG49d28246c [2025-01-09 17:17:04,762 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a70b564da/b526cc2fd1624813ab6d40895d6a8a02 [2025-01-09 17:17:04,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:17:04,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:17:04,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:17:04,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:17:04,768 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:17:04,769 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:17:04" (1/1) ... [2025-01-09 17:17:04,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627a6d87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:04, skipping insertion in model container [2025-01-09 17:17:04,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:17:04" (1/1) ... [2025-01-09 17:17:04,840 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:17:04,985 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[4494,4507] [2025-01-09 17:17:04,989 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[4554,4567] [2025-01-09 17:17:05,436 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,437 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,437 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,438 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,438 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,446 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,446 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,448 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,448 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,449 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,450 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,450 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,450 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,992 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:05,992 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,005 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,006 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,009 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,009 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,017 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,018 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,018 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,018 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,018 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,018 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,019 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,088 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[228400,228413] [2025-01-09 17:17:06,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:17:06,109 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:17:06,117 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[4494,4507] [2025-01-09 17:17:06,118 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[4554,4567] [2025-01-09 17:17:06,140 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,141 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,141 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,141 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,141 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,145 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,145 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,146 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,146 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,147 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,147 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,147 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,147 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7553-7564] [2025-01-09 17:17:06,228 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,228 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,232 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,233 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,239 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,239 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,239 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,239 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:06,250 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clear_harness_negated.i[228400,228413] [2025-01-09 17:17:06,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:17:06,418 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:17:06,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06 WrapperNode [2025-01-09 17:17:06,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:17:06,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:17:06,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:17:06,419 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:17:06,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (1/1) ... [2025-01-09 17:17:06,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (1/1) ... [2025-01-09 17:17:06,554 INFO L138 Inliner]: procedures = 764, calls = 2435, calls flagged for inlining = 69, calls inlined = 13, statements flattened = 613 [2025-01-09 17:17:06,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:17:06,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:17:06,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:17:06,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:17:06,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (1/1) ... [2025-01-09 17:17:06,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (1/1) ... [2025-01-09 17:17:06,573 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (1/1) ... [2025-01-09 17:17:06,631 INFO L175 MemorySlicer]: Split 292 memory accesses to 8 slices as follows [238, 2, 2, 8, 1, 34, 2, 5]. 82 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [6, 2, 0, 0, 0, 0, 0, 5]. The 241 writes are split as follows [232, 0, 1, 1, 1, 5, 1, 0]. [2025-01-09 17:17:06,634 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (1/1) ... [2025-01-09 17:17:06,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (1/1) ... [2025-01-09 17:17:06,668 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (1/1) ... [2025-01-09 17:17:06,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (1/1) ... [2025-01-09 17:17:06,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (1/1) ... [2025-01-09 17:17:06,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (1/1) ... [2025-01-09 17:17:06,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (1/1) ... [2025-01-09 17:17:06,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:17:06,712 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:17:06,712 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:17:06,712 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:17:06,713 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (1/1) ... [2025-01-09 17:17:06,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:17:06,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:06,745 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 17:17:06,747 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 17:17:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2025-01-09 17:17:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2025-01-09 17:17:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 17:17:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 17:17:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 17:17:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 17:17:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-01-09 17:17:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-01-09 17:17:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-01-09 17:17:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-01-09 17:17:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:17:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:17:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:17:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:17:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:17:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:17:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:17:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:17:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:17:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 17:17:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 17:17:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:17:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:17:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:17:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:17:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:17:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:17:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 17:17:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 17:17:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:17:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:17:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:17:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:17:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-01-09 17:17:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-01-09 17:17:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_clear [2025-01-09 17:17:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_clear [2025-01-09 17:17:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:17:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:17:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-01-09 17:17:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-01-09 17:17:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:17:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:17:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:17:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:17:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:17:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:17:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 17:17:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 17:17:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-01-09 17:17:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-01-09 17:17:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:17:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:17:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:17:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:17:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:17:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:17:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:17:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:17:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:17:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:17:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:17:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:17:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 17:17:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 17:17:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:17:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:17:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:17:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-01-09 17:17:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-01-09 17:17:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-01-09 17:17:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:17:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-01-09 17:17:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:17:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-01-09 17:17:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 17:17:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-01-09 17:17:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-01-09 17:17:07,024 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:17:07,026 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:17:12,929 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2025-01-09 17:17:12,929 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:17:12,940 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:17:12,942 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 17:17:12,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:12 BoogieIcfgContainer [2025-01-09 17:17:12,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:17:12,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:17:12,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:17:12,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:17:12,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:17:04" (1/3) ... [2025-01-09 17:17:12,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30618b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:12, skipping insertion in model container [2025-01-09 17:17:12,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:06" (2/3) ... [2025-01-09 17:17:12,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30618b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:12, skipping insertion in model container [2025-01-09 17:17:12,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:12" (3/3) ... [2025-01-09 17:17:12,950 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clear_harness_negated.i [2025-01-09 17:17:12,961 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:17:12,963 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_clear_harness_negated.i that has 19 procedures, 176 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 17:17:13,005 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:17:13,013 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;@723d8494, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:17:13,013 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:17:13,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 176 states, 115 states have (on average 1.191304347826087) internal successors, (137), 116 states have internal predecessors, (137), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2025-01-09 17:17:13,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-01-09 17:17:13,026 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:13,028 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:17:13,029 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:13,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:13,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1267038029, now seen corresponding path program 1 times [2025-01-09 17:17:13,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:13,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568630356] [2025-01-09 17:17:13,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:13,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:17,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 17:17:17,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 17:17:17,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:17,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:18,105 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2025-01-09 17:17:18,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:18,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568630356] [2025-01-09 17:17:18,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568630356] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:18,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477065558] [2025-01-09 17:17:18,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:18,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:18,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:18,114 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 17:17:18,115 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 17:17:22,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 17:17:22,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 17:17:22,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:22,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:22,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 4363 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:17:23,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:17:23,032 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2025-01-09 17:17:23,032 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:17:23,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477065558] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:23,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:17:23,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:17:23,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812189528] [2025-01-09 17:17:23,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:23,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:17:23,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:23,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:17:23,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:17:23,070 INFO L87 Difference]: Start difference. First operand has 176 states, 115 states have (on average 1.191304347826087) internal successors, (137), 116 states have internal predecessors, (137), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:17:23,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:23,101 INFO L93 Difference]: Finished difference Result 347 states and 458 transitions. [2025-01-09 17:17:23,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:17:23,103 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 141 [2025-01-09 17:17:23,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:23,108 INFO L225 Difference]: With dead ends: 347 [2025-01-09 17:17:23,108 INFO L226 Difference]: Without dead ends: 169 [2025-01-09 17:17:23,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:17:23,112 INFO L435 NwaCegarLoop]: 215 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, 215 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 17:17:23,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:17:23,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2025-01-09 17:17:23,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2025-01-09 17:17:23,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 109 states have (on average 1.1559633027522935) internal successors, (126), 110 states have internal predecessors, (126), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-01-09 17:17:23,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 207 transitions. [2025-01-09 17:17:23,148 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 207 transitions. Word has length 141 [2025-01-09 17:17:23,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:23,149 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 207 transitions. [2025-01-09 17:17:23,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:17:23,149 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 207 transitions. [2025-01-09 17:17:23,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-01-09 17:17:23,152 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:23,153 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:17:23,168 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 17:17:23,353 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 17:17:23,354 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:23,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:23,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1991854981, now seen corresponding path program 1 times [2025-01-09 17:17:23,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:23,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326622864] [2025-01-09 17:17:23,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:23,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:27,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 17:17:27,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 17:17:27,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:27,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:28,168 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2025-01-09 17:17:28,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:28,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326622864] [2025-01-09 17:17:28,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326622864] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:28,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:17:28,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:17:28,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001739319] [2025-01-09 17:17:28,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:28,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:17:28,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:28,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:17:28,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:17:28,172 INFO L87 Difference]: Start difference. First operand 169 states and 207 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:17:28,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:28,341 INFO L93 Difference]: Finished difference Result 301 states and 369 transitions. [2025-01-09 17:17:28,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:17:28,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 141 [2025-01-09 17:17:28,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:28,343 INFO L225 Difference]: With dead ends: 301 [2025-01-09 17:17:28,343 INFO L226 Difference]: Without dead ends: 174 [2025-01-09 17:17:28,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:17:28,344 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 0 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 812 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 17:17:28,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 812 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 17:17:28,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-01-09 17:17:28,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2025-01-09 17:17:28,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 113 states have (on average 1.1504424778761062) internal successors, (130), 114 states have internal predecessors, (130), 41 states have call successors, (41), 18 states have call predecessors, (41), 19 states have return successors, (41), 41 states have call predecessors, (41), 40 states have call successors, (41) [2025-01-09 17:17:28,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 212 transitions. [2025-01-09 17:17:28,360 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 212 transitions. Word has length 141 [2025-01-09 17:17:28,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:28,361 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 212 transitions. [2025-01-09 17:17:28,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:17:28,361 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 212 transitions. [2025-01-09 17:17:28,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-01-09 17:17:28,366 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:28,366 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:17:28,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 17:17:28,366 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:28,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:28,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1124655729, now seen corresponding path program 1 times [2025-01-09 17:17:28,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:28,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785096625] [2025-01-09 17:17:28,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:28,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:32,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:17:32,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:17:32,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:32,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:35,844 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-01-09 17:17:35,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:35,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785096625] [2025-01-09 17:17:35,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785096625] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:35,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217427283] [2025-01-09 17:17:35,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:35,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:35,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:35,848 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 17:17:35,849 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 17:17:40,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:17:40,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:17:40,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:40,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:40,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 4367 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-01-09 17:17:40,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:17:41,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-09 17:17:42,847 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-01-09 17:17:42,847 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:17:42,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217427283] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:42,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:17:42,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 15 [2025-01-09 17:17:42,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838529869] [2025-01-09 17:17:42,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:42,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-09 17:17:42,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:42,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-09 17:17:42,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2025-01-09 17:17:42,849 INFO L87 Difference]: Start difference. First operand 174 states and 212 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-01-09 17:17:47,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:47,286 INFO L93 Difference]: Finished difference Result 311 states and 381 transitions. [2025-01-09 17:17:47,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 17:17:47,287 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 147 [2025-01-09 17:17:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:47,290 INFO L225 Difference]: With dead ends: 311 [2025-01-09 17:17:47,290 INFO L226 Difference]: Without dead ends: 198 [2025-01-09 17:17:47,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2025-01-09 17:17:47,291 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 125 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:47,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1385 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-01-09 17:17:47,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2025-01-09 17:17:47,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 195. [2025-01-09 17:17:47,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 130 states have (on average 1.1538461538461537) internal successors, (150), 132 states have internal predecessors, (150), 41 states have call successors, (41), 21 states have call predecessors, (41), 23 states have return successors, (43), 41 states have call predecessors, (43), 40 states have call successors, (43) [2025-01-09 17:17:47,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 234 transitions. [2025-01-09 17:17:47,303 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 234 transitions. Word has length 147 [2025-01-09 17:17:47,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:47,304 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 234 transitions. [2025-01-09 17:17:47,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-01-09 17:17:47,304 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 234 transitions. [2025-01-09 17:17:47,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-01-09 17:17:47,305 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:47,306 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:17:47,321 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 17:17:47,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:47,506 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:47,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:47,507 INFO L85 PathProgramCache]: Analyzing trace with hash -17846737, now seen corresponding path program 1 times [2025-01-09 17:17:47,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:47,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947085913] [2025-01-09 17:17:47,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:47,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:51,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:17:51,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:17:51,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:51,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:51,858 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-01-09 17:17:51,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:51,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947085913] [2025-01-09 17:17:51,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947085913] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:51,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773327573] [2025-01-09 17:17:51,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:51,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:51,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:51,862 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 17:17:51,868 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 17:17:56,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 17:17:56,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 17:17:56,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:56,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:56,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 4362 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 17:17:56,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:17:57,288 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-01-09 17:17:57,289 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:17:57,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773327573] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:57,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:17:57,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-01-09 17:17:57,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948936301] [2025-01-09 17:17:57,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:57,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 17:17:57,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:57,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 17:17:57,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-01-09 17:17:57,291 INFO L87 Difference]: Start difference. First operand 195 states and 234 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-01-09 17:17:58,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:58,424 INFO L93 Difference]: Finished difference Result 318 states and 389 transitions. [2025-01-09 17:17:58,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 17:17:58,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 147 [2025-01-09 17:17:58,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:58,427 INFO L225 Difference]: With dead ends: 318 [2025-01-09 17:17:58,427 INFO L226 Difference]: Without dead ends: 200 [2025-01-09 17:17:58,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-01-09 17:17:58,428 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 205 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:58,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 522 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-09 17:17:58,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2025-01-09 17:17:58,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 197. [2025-01-09 17:17:58,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 131 states have (on average 1.1526717557251909) internal successors, (151), 133 states have internal predecessors, (151), 42 states have call successors, (42), 21 states have call predecessors, (42), 23 states have return successors, (44), 42 states have call predecessors, (44), 41 states have call successors, (44) [2025-01-09 17:17:58,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 237 transitions. [2025-01-09 17:17:58,440 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 237 transitions. Word has length 147 [2025-01-09 17:17:58,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:58,440 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 237 transitions. [2025-01-09 17:17:58,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-01-09 17:17:58,440 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 237 transitions. [2025-01-09 17:17:58,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-01-09 17:17:58,441 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:58,441 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:17:58,458 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 17:17:58,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:58,646 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:58,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:58,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1251383552, now seen corresponding path program 1 times [2025-01-09 17:17:58,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:58,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096731093] [2025-01-09 17:17:58,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:58,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:18:02,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 17:18:02,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 17:18:02,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:18:02,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:18:03,912 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2025-01-09 17:18:03,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:18:03,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096731093] [2025-01-09 17:18:03,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096731093] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:18:03,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868991751] [2025-01-09 17:18:03,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:18:03,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:18:03,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:18:03,914 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 17:18:03,916 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 17:18:08,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 17:18:08,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 17:18:08,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:18:08,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:18:08,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 4391 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-01-09 17:18:08,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:18:10,074 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2025-01-09 17:18:10,077 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:18:10,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868991751] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:18:10,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:18:10,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2025-01-09 17:18:10,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269832057] [2025-01-09 17:18:10,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:18:10,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 17:18:10,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:18:10,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 17:18:10,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2025-01-09 17:18:10,086 INFO L87 Difference]: Start difference. First operand 197 states and 237 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-01-09 17:18:11,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:18:11,558 INFO L93 Difference]: Finished difference Result 327 states and 401 transitions. [2025-01-09 17:18:11,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 17:18:11,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 153 [2025-01-09 17:18:11,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:18:11,560 INFO L225 Difference]: With dead ends: 327 [2025-01-09 17:18:11,560 INFO L226 Difference]: Without dead ends: 207 [2025-01-09 17:18:11,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2025-01-09 17:18:11,562 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-01-09 17:18:11,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1512 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-01-09 17:18:11,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2025-01-09 17:18:11,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 203. [2025-01-09 17:18:11,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 135 states have (on average 1.1481481481481481) internal successors, (155), 138 states have internal predecessors, (155), 42 states have call successors, (42), 21 states have call predecessors, (42), 25 states have return successors, (49), 43 states have call predecessors, (49), 41 states have call successors, (49) [2025-01-09 17:18:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 246 transitions. [2025-01-09 17:18:11,575 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 246 transitions. Word has length 153 [2025-01-09 17:18:11,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:18:11,575 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 246 transitions. [2025-01-09 17:18:11,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-01-09 17:18:11,576 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 246 transitions. [2025-01-09 17:18:11,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-01-09 17:18:11,577 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:18:11,577 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:18:11,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 17:18:11,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:18:11,781 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:18:11,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:18:11,781 INFO L85 PathProgramCache]: Analyzing trace with hash 340152046, now seen corresponding path program 1 times [2025-01-09 17:18:11,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:18:11,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128460918] [2025-01-09 17:18:11,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:18:11,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:18:15,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-01-09 17:18:15,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-01-09 17:18:15,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:18:15,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:18:19,419 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-01-09 17:18:19,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:18:19,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128460918] [2025-01-09 17:18:19,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128460918] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:18:19,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:18:19,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 17:18:19,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879248319] [2025-01-09 17:18:19,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:18:19,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-09 17:18:19,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:18:19,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-09 17:18:19,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-01-09 17:18:19,421 INFO L87 Difference]: Start difference. First operand 203 states and 246 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2025-01-09 17:18:22,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:18:22,982 INFO L93 Difference]: Finished difference Result 312 states and 380 transitions. [2025-01-09 17:18:22,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 17:18:22,983 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 160 [2025-01-09 17:18:22,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:18:22,988 INFO L225 Difference]: With dead ends: 312 [2025-01-09 17:18:22,989 INFO L226 Difference]: Without dead ends: 206 [2025-01-09 17:18:22,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2025-01-09 17:18:22,994 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 61 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-01-09 17:18:22,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1476 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-01-09 17:18:22,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2025-01-09 17:18:23,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 203. [2025-01-09 17:18:23,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 135 states have (on average 1.1407407407407408) internal successors, (154), 138 states have internal predecessors, (154), 42 states have call successors, (42), 21 states have call predecessors, (42), 25 states have return successors, (49), 43 states have call predecessors, (49), 41 states have call successors, (49) [2025-01-09 17:18:23,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 245 transitions. [2025-01-09 17:18:23,029 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 245 transitions. Word has length 160 [2025-01-09 17:18:23,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:18:23,031 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 245 transitions. [2025-01-09 17:18:23,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 10 states have internal predecessors, (73), 5 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2025-01-09 17:18:23,032 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 245 transitions. [2025-01-09 17:18:23,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-01-09 17:18:23,036 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:18:23,036 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:18:23,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 17:18:23,036 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:18:23,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:18:23,037 INFO L85 PathProgramCache]: Analyzing trace with hash -169321044, now seen corresponding path program 1 times [2025-01-09 17:18:23,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:18:23,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277296107] [2025-01-09 17:18:23,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:18:23,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:18:26,964 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-01-09 17:18:27,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-01-09 17:18:27,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:18:27,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:18:28,223 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-01-09 17:18:28,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:18:28,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277296107] [2025-01-09 17:18:28,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277296107] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:18:28,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:18:28,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 17:18:28,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60316860] [2025-01-09 17:18:28,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:18:28,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:18:28,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:18:28,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:18:28,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:18:28,225 INFO L87 Difference]: Start difference. First operand 203 states and 245 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2025-01-09 17:18:28,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:18:28,852 INFO L93 Difference]: Finished difference Result 306 states and 370 transitions. [2025-01-09 17:18:28,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 17:18:28,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 160 [2025-01-09 17:18:28,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:18:28,859 INFO L225 Difference]: With dead ends: 306 [2025-01-09 17:18:28,859 INFO L226 Difference]: Without dead ends: 196 [2025-01-09 17:18:28,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-09 17:18:28,860 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 57 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 17:18:28,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1094 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 17:18:28,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2025-01-09 17:18:28,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2025-01-09 17:18:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 130 states have (on average 1.1307692307692307) internal successors, (147), 132 states have internal predecessors, (147), 41 states have call successors, (41), 21 states have call predecessors, (41), 24 states have return successors, (45), 42 states have call predecessors, (45), 40 states have call successors, (45) [2025-01-09 17:18:28,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 233 transitions. [2025-01-09 17:18:28,875 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 233 transitions. Word has length 160 [2025-01-09 17:18:28,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:18:28,876 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 233 transitions. [2025-01-09 17:18:28,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2025-01-09 17:18:28,876 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 233 transitions. [2025-01-09 17:18:28,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-01-09 17:18:28,879 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:18:28,879 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:18:28,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 17:18:28,879 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:18:28,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:18:28,879 INFO L85 PathProgramCache]: Analyzing trace with hash -2139250973, now seen corresponding path program 1 times [2025-01-09 17:18:28,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:18:28,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907132626] [2025-01-09 17:18:28,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:18:28,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:18:32,625 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-01-09 17:18:33,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-01-09 17:18:33,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:18:33,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat