./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_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_clean_up_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 50d4d1f2ae5bba89cc186bb0972ef2b0cd77f1837349703818d4cbd39178a465 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:16:55,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:16:55,825 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:16:55,830 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:16:55,831 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:16:55,858 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:16:55,859 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:16:55,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:16:55,860 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:16:55,860 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:16:55,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:16:55,861 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:16:55,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:16:55,861 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:16:55,861 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:16:55,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:16:55,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:16:55,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:16:55,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:16:55,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:16:55,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:16:55,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:16:55,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:16:55,863 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:16:55,863 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:16:55,863 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:16:55,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:16:55,864 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:16:55,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:16:55,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:16:55,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:16:55,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:16:55,864 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:16:55,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:16:55,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:16:55,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:16:55,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:16:55,864 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:16:55,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:16:55,864 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:16:55,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:16:55,865 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:16:55,865 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:16:55,865 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:16:55,865 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:16:55,865 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 -> 50d4d1f2ae5bba89cc186bb0972ef2b0cd77f1837349703818d4cbd39178a465 [2025-01-09 17:16:56,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:16:56,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:16:56,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:16:56,159 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:16:56,160 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:16:56,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i [2025-01-09 17:16:57,433 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9a7ae6829/f43c90a7637c4a348d429cfb253ba484/FLAG05672007f [2025-01-09 17:16:57,985 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:16:57,986 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness_negated.i [2025-01-09 17:16:58,026 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9a7ae6829/f43c90a7637c4a348d429cfb253ba484/FLAG05672007f [2025-01-09 17:16:58,040 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9a7ae6829/f43c90a7637c4a348d429cfb253ba484 [2025-01-09 17:16:58,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:16:58,043 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:16:58,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:16:58,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:16:58,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:16:58,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:16:58" (1/1) ... [2025-01-09 17:16:58,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ae21ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:16:58, skipping insertion in model container [2025-01-09 17:16:58,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:16:58" (1/1) ... [2025-01-09 17:16:58,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:16:58,412 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_clean_up_harness_negated.i[4497,4510] [2025-01-09 17:16:58,422 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_clean_up_harness_negated.i[4557,4570] [2025-01-09 17:16:59,438 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:59,439 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:59,440 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:59,440 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:59,441 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:59,458 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:59,459 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:59,460 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:59,461 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:59,462 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:59,463 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:59,464 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:16:59,464 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,786 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,786 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,821 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,823 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,830 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,830 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,848 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,850 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,850 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,851 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,851 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,851 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,852 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:00,910 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_clean_up_harness_negated.i[228637,228650] [2025-01-09 17:17:00,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:17:00,951 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:17:00,968 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_clean_up_harness_negated.i[4497,4510] [2025-01-09 17:17:00,969 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_clean_up_harness_negated.i[4557,4570] [2025-01-09 17:17:01,011 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,011 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,011 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,012 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,012 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,019 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,020 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,021 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,022 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,023 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,023 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,024 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,024 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7553-7564] [2025-01-09 17:17:01,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,242 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,249 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,250 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,252 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,253 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,263 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,263 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,264 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,264 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,264 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,264 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,265 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:17:01,280 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_clean_up_harness_negated.i[228637,228650] [2025-01-09 17:17:01,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:17:01,490 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:17:01,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01 WrapperNode [2025-01-09 17:17:01,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:17:01,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:17:01,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:17:01,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:17:01,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (1/1) ... [2025-01-09 17:17:01,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (1/1) ... [2025-01-09 17:17:01,702 INFO L138 Inliner]: procedures = 764, calls = 2440, calls flagged for inlining = 72, calls inlined = 16, statements flattened = 716 [2025-01-09 17:17:01,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:17:01,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:17:01,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:17:01,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:17:01,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (1/1) ... [2025-01-09 17:17:01,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (1/1) ... [2025-01-09 17:17:01,735 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (1/1) ... [2025-01-09 17:17:01,825 INFO L175 MemorySlicer]: Split 304 memory accesses to 8 slices as follows [238, 2, 37, 2, 1, 16, 2, 6]. 78 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 243 writes are split as follows [232, 0, 6, 1, 1, 2, 1, 0]. [2025-01-09 17:17:01,830 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (1/1) ... [2025-01-09 17:17:01,830 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (1/1) ... [2025-01-09 17:17:01,880 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (1/1) ... [2025-01-09 17:17:01,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (1/1) ... [2025-01-09 17:17:01,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (1/1) ... [2025-01-09 17:17:01,895 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (1/1) ... [2025-01-09 17:17:01,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (1/1) ... [2025-01-09 17:17:01,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:17:01,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:17:01,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:17:01,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:17:01,918 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (1/1) ... [2025-01-09 17:17:01,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:17:01,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:01,964 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 17:17:01,968 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 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl [2025-01-09 17:17:01,993 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:17:01,993 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 17:17:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:17:01,994 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:17:01,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-01-09 17:17:01,994 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-01-09 17:17:01,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:17:01,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:17:01,999 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-01-09 17:17:01,999 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-01-09 17:17:01,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 17:17:02,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 17:17:02,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 17:17:02,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 17:17:02,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 17:17:02,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 17:17:02,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 17:17:02,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 17:17:02,001 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-01-09 17:17:02,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:17:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-01-09 17:17:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:17:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-01-09 17:17:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:17:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-01-09 17:17:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-01-09 17:17:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 17:17:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:17:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:17:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-01-09 17:17:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-01-09 17:17:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-01-09 17:17:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 17:17:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-01-09 17:17:02,004 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-01-09 17:17:02,418 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:17:02,422 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:17:09,196 INFO L? ?]: Removed 174 outVars from TransFormulas that were not future-live. [2025-01-09 17:17:09,197 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:17:09,211 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:17:09,212 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 17:17:09,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:09 BoogieIcfgContainer [2025-01-09 17:17:09,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:17:09,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:17:09,215 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:17:09,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:17:09,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:16:58" (1/3) ... [2025-01-09 17:17:09,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204276c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:09, skipping insertion in model container [2025-01-09 17:17:09,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:17:01" (2/3) ... [2025-01-09 17:17:09,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204276c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:17:09, skipping insertion in model container [2025-01-09 17:17:09,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:17:09" (3/3) ... [2025-01-09 17:17:09,224 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clean_up_harness_negated.i [2025-01-09 17:17:09,241 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:17:09,243 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_clean_up_harness_negated.i that has 20 procedures, 199 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 17:17:09,314 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:17:09,328 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;@5da8760c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:17:09,329 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:17:09,334 INFO L276 IsEmpty]: Start isEmpty. Operand has 199 states, 131 states have (on average 1.1908396946564885) internal successors, (156), 132 states have internal predecessors, (156), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-01-09 17:17:09,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-01-09 17:17:09,349 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:09,351 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-01-09 17:17:09,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:09,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:09,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1189941773, now seen corresponding path program 1 times [2025-01-09 17:17:09,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:09,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574052214] [2025-01-09 17:17:09,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:09,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:14,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 17:17:14,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 17:17:14,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:14,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:15,335 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2025-01-09 17:17:15,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:15,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574052214] [2025-01-09 17:17:15,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574052214] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:17:15,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731319141] [2025-01-09 17:17:15,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:15,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:17:15,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:17:15,341 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 17:17:15,345 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 17:17:20,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 17:17:20,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 17:17:20,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:20,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:20,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 4328 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:17:20,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:17:20,713 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2025-01-09 17:17:20,714 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:17:20,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731319141] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:20,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:17:20,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:17:20,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229525273] [2025-01-09 17:17:20,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:20,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:17:20,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:20,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:17:20,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:17:20,747 INFO L87 Difference]: Start difference. First operand has 199 states, 131 states have (on average 1.1908396946564885) internal successors, (156), 132 states have internal predecessors, (156), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:17:20,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:20,795 INFO L93 Difference]: Finished difference Result 393 states and 525 transitions. [2025-01-09 17:17:20,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:17:20,798 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134 [2025-01-09 17:17:20,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:20,806 INFO L225 Difference]: With dead ends: 393 [2025-01-09 17:17:20,807 INFO L226 Difference]: Without dead ends: 192 [2025-01-09 17:17:20,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 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 17:17:20,818 INFO L435 NwaCegarLoop]: 246 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, 246 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 17:17:20,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:17:20,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2025-01-09 17:17:20,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2025-01-09 17:17:20,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 125 states have (on average 1.16) internal successors, (145), 126 states have internal predecessors, (145), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-01-09 17:17:20,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 238 transitions. [2025-01-09 17:17:20,887 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 238 transitions. Word has length 134 [2025-01-09 17:17:20,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:20,889 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 238 transitions. [2025-01-09 17:17:20,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:17:20,891 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 238 transitions. [2025-01-09 17:17:20,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-01-09 17:17:20,896 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:20,896 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-01-09 17:17:20,913 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 17:17:21,097 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 17:17:21,098 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:21,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:21,098 INFO L85 PathProgramCache]: Analyzing trace with hash -738657349, now seen corresponding path program 1 times [2025-01-09 17:17:21,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:21,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004335517] [2025-01-09 17:17:21,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:21,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:25,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 17:17:25,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 17:17:25,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:25,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:27,184 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-01-09 17:17:27,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:27,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004335517] [2025-01-09 17:17:27,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004335517] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:27,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:17:27,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:17:27,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484886431] [2025-01-09 17:17:27,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:27,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:17:27,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:27,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:17:27,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:17:27,191 INFO L87 Difference]: Start difference. First operand 192 states and 238 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:17:27,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:27,381 INFO L93 Difference]: Finished difference Result 347 states and 431 transitions. [2025-01-09 17:17:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:17:27,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134 [2025-01-09 17:17:27,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:27,386 INFO L225 Difference]: With dead ends: 347 [2025-01-09 17:17:27,386 INFO L226 Difference]: Without dead ends: 197 [2025-01-09 17:17:27,387 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 17:17:27,388 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 0 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:27,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 936 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 17:17:27,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2025-01-09 17:17:27,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2025-01-09 17:17:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 129 states have (on average 1.1550387596899225) internal successors, (149), 130 states have internal predecessors, (149), 47 states have call successors, (47), 19 states have call predecessors, (47), 20 states have return successors, (47), 47 states have call predecessors, (47), 46 states have call successors, (47) [2025-01-09 17:17:27,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 243 transitions. [2025-01-09 17:17:27,420 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 243 transitions. Word has length 134 [2025-01-09 17:17:27,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:27,422 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 243 transitions. [2025-01-09 17:17:27,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 17:17:27,423 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 243 transitions. [2025-01-09 17:17:27,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 17:17:27,428 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:27,428 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-01-09 17:17:27,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 17:17:27,429 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:27,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:27,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1361937309, now seen corresponding path program 1 times [2025-01-09 17:17:27,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:27,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600622774] [2025-01-09 17:17:27,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:27,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:31,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 17:17:31,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 17:17:31,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:31,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:36,062 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-01-09 17:17:36,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:36,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600622774] [2025-01-09 17:17:36,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600622774] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:36,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:17:36,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 17:17:36,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636463653] [2025-01-09 17:17:36,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:36,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 17:17:36,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:36,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 17:17:36,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-01-09 17:17:36,068 INFO L87 Difference]: Start difference. First operand 197 states and 243 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-01-09 17:17:39,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:39,357 INFO L93 Difference]: Finished difference Result 342 states and 429 transitions. [2025-01-09 17:17:39,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 17:17:39,359 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 140 [2025-01-09 17:17:39,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:39,365 INFO L225 Difference]: With dead ends: 342 [2025-01-09 17:17:39,365 INFO L226 Difference]: Without dead ends: 206 [2025-01-09 17:17:39,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-01-09 17:17:39,367 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 54 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1518 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:39,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1518 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-01-09 17:17:39,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2025-01-09 17:17:39,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 202. [2025-01-09 17:17:39,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 133 states have (on average 1.1578947368421053) internal successors, (154), 135 states have internal predecessors, (154), 47 states have call successors, (47), 19 states have call predecessors, (47), 21 states have return successors, (50), 47 states have call predecessors, (50), 46 states have call successors, (50) [2025-01-09 17:17:39,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 251 transitions. [2025-01-09 17:17:39,388 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 251 transitions. Word has length 140 [2025-01-09 17:17:39,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:39,389 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 251 transitions. [2025-01-09 17:17:39,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2025-01-09 17:17:39,389 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 251 transitions. [2025-01-09 17:17:39,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 17:17:39,393 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:39,394 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-01-09 17:17:39,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 17:17:39,394 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:39,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:39,395 INFO L85 PathProgramCache]: Analyzing trace with hash -549105249, now seen corresponding path program 1 times [2025-01-09 17:17:39,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:39,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587545703] [2025-01-09 17:17:39,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:39,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:43,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 17:17:43,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 17:17:43,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:43,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:44,846 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-01-09 17:17:44,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:44,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587545703] [2025-01-09 17:17:44,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587545703] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:44,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:17:44,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:17:44,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008346490] [2025-01-09 17:17:44,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:44,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:17:44,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:44,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:17:44,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:17:44,848 INFO L87 Difference]: Start difference. First operand 202 states and 251 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-01-09 17:17:45,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:45,371 INFO L93 Difference]: Finished difference Result 348 states and 438 transitions. [2025-01-09 17:17:45,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:17:45,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 140 [2025-01-09 17:17:45,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:45,375 INFO L225 Difference]: With dead ends: 348 [2025-01-09 17:17:45,375 INFO L226 Difference]: Without dead ends: 207 [2025-01-09 17:17:45,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:17:45,379 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 55 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:45,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 617 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 17:17:45,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2025-01-09 17:17:45,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2025-01-09 17:17:45,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 134 states have (on average 1.1567164179104477) internal successors, (155), 136 states have internal predecessors, (155), 48 states have call successors, (48), 19 states have call predecessors, (48), 21 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2025-01-09 17:17:45,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 254 transitions. [2025-01-09 17:17:45,406 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 254 transitions. Word has length 140 [2025-01-09 17:17:45,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:45,406 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 254 transitions. [2025-01-09 17:17:45,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-01-09 17:17:45,406 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 254 transitions. [2025-01-09 17:17:45,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-01-09 17:17:45,408 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:45,408 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1] [2025-01-09 17:17:45,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 17:17:45,409 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:45,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:45,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1114150356, now seen corresponding path program 1 times [2025-01-09 17:17:45,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:45,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603055208] [2025-01-09 17:17:45,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:45,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:49,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-01-09 17:17:49,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-01-09 17:17:49,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:49,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-01-09 17:17:51,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:51,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603055208] [2025-01-09 17:17:51,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603055208] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:51,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:17:51,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 17:17:51,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935828500] [2025-01-09 17:17:51,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:51,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 17:17:51,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:51,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 17:17:51,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:17:51,691 INFO L87 Difference]: Start difference. First operand 204 states and 254 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2025-01-09 17:17:52,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:17:52,409 INFO L93 Difference]: Finished difference Result 350 states and 446 transitions. [2025-01-09 17:17:52,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 17:17:52,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 146 [2025-01-09 17:17:52,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:17:52,412 INFO L225 Difference]: With dead ends: 350 [2025-01-09 17:17:52,412 INFO L226 Difference]: Without dead ends: 205 [2025-01-09 17:17:52,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 17:17:52,413 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 3 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 17:17:52,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1351 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 17:17:52,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2025-01-09 17:17:52,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 204. [2025-01-09 17:17:52,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 134 states have (on average 1.1492537313432836) internal successors, (154), 136 states have internal predecessors, (154), 48 states have call successors, (48), 19 states have call predecessors, (48), 21 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2025-01-09 17:17:52,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 253 transitions. [2025-01-09 17:17:52,433 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 253 transitions. Word has length 146 [2025-01-09 17:17:52,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:17:52,434 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 253 transitions. [2025-01-09 17:17:52,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2025-01-09 17:17:52,434 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 253 transitions. [2025-01-09 17:17:52,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-01-09 17:17:52,436 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:17:52,436 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1] [2025-01-09 17:17:52,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 17:17:52,436 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:17:52,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:17:52,437 INFO L85 PathProgramCache]: Analyzing trace with hash -936696346, now seen corresponding path program 1 times [2025-01-09 17:17:52,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:17:52,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071741469] [2025-01-09 17:17:52,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:17:52,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:17:56,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 17:17:56,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 17:17:56,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:17:56,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:17:59,620 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2025-01-09 17:17:59,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:17:59,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071741469] [2025-01-09 17:17:59,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071741469] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:17:59,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:17:59,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 17:17:59,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839516944] [2025-01-09 17:17:59,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:17:59,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 17:17:59,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:17:59,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 17:17:59,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 17:17:59,622 INFO L87 Difference]: Start difference. First operand 204 states and 253 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 5 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-01-09 17:18:04,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:18:04,012 INFO L93 Difference]: Finished difference Result 238 states and 291 transitions. [2025-01-09 17:18:04,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 17:18:04,012 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 5 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 153 [2025-01-09 17:18:04,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:18:04,015 INFO L225 Difference]: With dead ends: 238 [2025-01-09 17:18:04,015 INFO L226 Difference]: Without dead ends: 216 [2025-01-09 17:18:04,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2025-01-09 17:18:04,016 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 81 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-01-09 17:18:04,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1480 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-01-09 17:18:04,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2025-01-09 17:18:04,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2025-01-09 17:18:04,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 144 states have (on average 1.1527777777777777) internal successors, (166), 147 states have internal predecessors, (166), 48 states have call successors, (48), 20 states have call predecessors, (48), 23 states have return successors, (54), 48 states have call predecessors, (54), 47 states have call successors, (54) [2025-01-09 17:18:04,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 268 transitions. [2025-01-09 17:18:04,035 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 268 transitions. Word has length 153 [2025-01-09 17:18:04,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:18:04,035 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 268 transitions. [2025-01-09 17:18:04,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 5 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2025-01-09 17:18:04,036 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 268 transitions. [2025-01-09 17:18:04,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2025-01-09 17:18:04,038 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:18:04,038 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:18:04,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 17:18:04,038 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:18:04,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:18:04,039 INFO L85 PathProgramCache]: Analyzing trace with hash -749458408, now seen corresponding path program 1 times [2025-01-09 17:18:04,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:18:04,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129861575] [2025-01-09 17:18:04,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:18:04,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:18:07,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-01-09 17:18:07,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-01-09 17:18:07,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:18:07,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:18:08,122 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2025-01-09 17:18:08,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:18:08,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129861575] [2025-01-09 17:18:08,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129861575] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:18:08,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:18:08,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 17:18:08,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901870261] [2025-01-09 17:18:08,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:18:08,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 17:18:08,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:18:08,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 17:18:08,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 17:18:08,125 INFO L87 Difference]: Start difference. First operand 216 states and 268 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2025-01-09 17:18:08,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:18:08,213 INFO L93 Difference]: Finished difference Result 306 states and 374 transitions. [2025-01-09 17:18:08,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 17:18:08,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 178 [2025-01-09 17:18:08,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:18:08,216 INFO L225 Difference]: With dead ends: 306 [2025-01-09 17:18:08,216 INFO L226 Difference]: Without dead ends: 217 [2025-01-09 17:18:08,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 17:18:08,221 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 0 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:18:08,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 464 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 17:18:08,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2025-01-09 17:18:08,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2025-01-09 17:18:08,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 145 states have (on average 1.1517241379310346) internal successors, (167), 148 states have internal predecessors, (167), 48 states have call successors, (48), 20 states have call predecessors, (48), 23 states have return successors, (54), 48 states have call predecessors, (54), 47 states have call successors, (54) [2025-01-09 17:18:08,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 269 transitions. [2025-01-09 17:18:08,234 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 269 transitions. Word has length 178 [2025-01-09 17:18:08,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:18:08,236 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 269 transitions. [2025-01-09 17:18:08,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2025-01-09 17:18:08,236 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 269 transitions. [2025-01-09 17:18:08,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2025-01-09 17:18:08,240 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:18:08,240 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:18:08,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 17:18:08,240 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:18:08,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:18:08,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1770526762, now seen corresponding path program 1 times [2025-01-09 17:18:08,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:18:08,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738264453] [2025-01-09 17:18:08,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:18:08,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:18:11,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-01-09 17:18:12,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-01-09 17:18:12,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:18:12,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:18:13,368 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2025-01-09 17:18:13,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:18:13,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738264453] [2025-01-09 17:18:13,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738264453] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:18:13,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:18:13,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:18:13,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520623036] [2025-01-09 17:18:13,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:18:13,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:18:13,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:18:13,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:18:13,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:18:13,370 INFO L87 Difference]: Start difference. First operand 217 states and 269 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2025-01-09 17:18:14,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:18:14,202 INFO L93 Difference]: Finished difference Result 333 states and 412 transitions. [2025-01-09 17:18:14,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:18:14,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 178 [2025-01-09 17:18:14,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:18:14,205 INFO L225 Difference]: With dead ends: 333 [2025-01-09 17:18:14,206 INFO L226 Difference]: Without dead ends: 217 [2025-01-09 17:18:14,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-01-09 17:18:14,209 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 1 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 17:18:14,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 896 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 17:18:14,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2025-01-09 17:18:14,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2025-01-09 17:18:14,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 145 states have (on average 1.1448275862068966) internal successors, (166), 148 states have internal predecessors, (166), 48 states have call successors, (48), 20 states have call predecessors, (48), 23 states have return successors, (54), 48 states have call predecessors, (54), 47 states have call successors, (54) [2025-01-09 17:18:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 268 transitions. [2025-01-09 17:18:14,228 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 268 transitions. Word has length 178 [2025-01-09 17:18:14,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:18:14,228 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 268 transitions. [2025-01-09 17:18:14,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2025-01-09 17:18:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 268 transitions. [2025-01-09 17:18:14,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 17:18:14,230 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:18:14,231 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 17:18:14,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 17:18:14,231 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:18:14,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:18:14,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1745333765, now seen corresponding path program 1 times [2025-01-09 17:18:14,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:18:14,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103162608] [2025-01-09 17:18:14,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:18:14,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:18:18,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 17:18:18,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 17:18:18,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:18:18,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat