./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_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_init_unbounded_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 179a1ffc86769a00f66e166b0105235f9f4d772a412ed21eb988649ef2cb5874 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 17:18:47,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 17:18:48,045 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 17:18:48,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 17:18:48,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 17:18:48,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 17:18:48,074 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 17:18:48,074 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 17:18:48,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 17:18:48,074 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 17:18:48,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 17:18:48,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 17:18:48,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 17:18:48,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 17:18:48,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 17:18:48,075 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:18:48,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 17:18:48,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 17:18:48,076 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 17:18:48,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 17:18:48,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:18:48,076 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 17:18:48,076 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 17:18:48,076 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 17:18:48,076 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 17:18:48,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 17:18:48,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 17:18:48,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 17:18:48,076 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 17:18:48,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 17:18:48,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 17:18:48,076 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 -> 179a1ffc86769a00f66e166b0105235f9f4d772a412ed21eb988649ef2cb5874 [2025-01-09 17:18:48,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 17:18:48,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 17:18:48,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 17:18:48,325 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 17:18:48,325 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 17:18:48,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness_negated.i [2025-01-09 17:18:49,471 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/058555ce5/9e5f1769fbde4ecc87a9a71644e5798d/FLAG1c0a9521f [2025-01-09 17:18:49,877 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 17:18:49,878 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_init_unbounded_harness_negated.i [2025-01-09 17:18:49,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/058555ce5/9e5f1769fbde4ecc87a9a71644e5798d/FLAG1c0a9521f [2025-01-09 17:18:49,925 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/058555ce5/9e5f1769fbde4ecc87a9a71644e5798d [2025-01-09 17:18:49,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 17:18:49,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 17:18:49,928 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 17:18:49,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 17:18:49,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 17:18:49,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:18:49" (1/1) ... [2025-01-09 17:18:49,933 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb36b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:49, skipping insertion in model container [2025-01-09 17:18:49,933 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 05:18:49" (1/1) ... [2025-01-09 17:18:50,001 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 17:18:50,281 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_init_unbounded_harness_negated.i[4503,4516] [2025-01-09 17:18:50,292 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_init_unbounded_harness_negated.i[4563,4576] [2025-01-09 17:18:51,059 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,060 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,060 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,070 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,070 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,071 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,072 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,074 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,074 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,075 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,075 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,887 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,888 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,915 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,915 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,925 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,925 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,943 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,944 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,945 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,945 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,945 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,945 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:51,946 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,002 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_init_unbounded_harness_negated.i[228209,228222] [2025-01-09 17:18:52,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:18:52,030 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 17:18:52,041 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_init_unbounded_harness_negated.i[4503,4516] [2025-01-09 17:18:52,043 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_init_unbounded_harness_negated.i[4563,4576] [2025-01-09 17:18:52,083 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,083 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,083 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,083 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,084 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,089 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,091 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,091 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,092 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,093 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,094 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,094 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,094 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,158 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7544-7555] [2025-01-09 17:18:52,219 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,220 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,224 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,224 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,226 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,226 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,231 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,231 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,232 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,232 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,232 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,232 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,232 WARN L1731 CHandler]: Possible shadowing of function index [2025-01-09 17:18:52,244 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_init_unbounded_harness_negated.i[228209,228222] [2025-01-09 17:18:52,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 17:18:52,411 INFO L204 MainTranslator]: Completed translation [2025-01-09 17:18:52,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52 WrapperNode [2025-01-09 17:18:52,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 17:18:52,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 17:18:52,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 17:18:52,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 17:18:52,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (1/1) ... [2025-01-09 17:18:52,503 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (1/1) ... [2025-01-09 17:18:52,563 INFO L138 Inliner]: procedures = 764, calls = 2425, calls flagged for inlining = 66, calls inlined = 11, statements flattened = 831 [2025-01-09 17:18:52,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 17:18:52,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 17:18:52,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 17:18:52,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 17:18:52,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (1/1) ... [2025-01-09 17:18:52,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (1/1) ... [2025-01-09 17:18:52,577 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (1/1) ... [2025-01-09 17:18:52,584 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-01-09 17:18:52,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (1/1) ... [2025-01-09 17:18:52,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (1/1) ... [2025-01-09 17:18:52,605 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (1/1) ... [2025-01-09 17:18:52,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (1/1) ... [2025-01-09 17:18:52,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (1/1) ... [2025-01-09 17:18:52,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (1/1) ... [2025-01-09 17:18:52,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (1/1) ... [2025-01-09 17:18:52,643 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 17:18:52,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 17:18:52,644 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 17:18:52,644 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 17:18:52,645 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (1/1) ... [2025-01-09 17:18:52,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 17:18:52,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:18:52,670 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 17:18:52,672 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 17:18:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2025-01-09 17:18:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2025-01-09 17:18:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2025-01-09 17:18:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 17:18:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-01-09 17:18:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-01-09 17:18:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-01-09 17:18:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-01-09 17:18:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-01-09 17:18:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2025-01-09 17:18:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2025-01-09 17:18:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 17:18:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-01-09 17:18:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-01-09 17:18:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 17:18:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 17:18:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2025-01-09 17:18:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-01-09 17:18:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-01-09 17:18:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 17:18:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 17:18:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-01-09 17:18:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-01-09 17:18:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-01-09 17:18:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 17:18:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 17:18:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-01-09 17:18:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-01-09 17:18:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 17:18:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-01-09 17:18:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-01-09 17:18:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-01-09 17:18:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-01-09 17:18:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-01-09 17:18:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2025-01-09 17:18:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 17:18:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-01-09 17:18:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-01-09 17:18:52,938 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 17:18:52,940 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 17:18:53,397 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-09 17:18:58,702 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume false; [2025-01-09 17:18:58,703 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !false; [2025-01-09 17:18:58,797 INFO L? ?]: Removed 174 outVars from TransFormulas that were not future-live. [2025-01-09 17:18:58,797 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 17:18:58,805 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 17:18:58,805 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 17:18:58,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:18:58 BoogieIcfgContainer [2025-01-09 17:18:58,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 17:18:58,809 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 17:18:58,809 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 17:18:58,813 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 17:18:58,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 05:18:49" (1/3) ... [2025-01-09 17:18:58,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7442a8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:18:58, skipping insertion in model container [2025-01-09 17:18:58,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 05:18:52" (2/3) ... [2025-01-09 17:18:58,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7442a8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 05:18:58, skipping insertion in model container [2025-01-09 17:18:58,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 05:18:58" (3/3) ... [2025-01-09 17:18:58,815 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_init_unbounded_harness_negated.i [2025-01-09 17:18:58,826 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 17:18:58,828 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_init_unbounded_harness_negated.i that has 19 procedures, 191 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 17:18:58,873 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 17:18:58,881 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;@28934cb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 17:18:58,881 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 17:18:58,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 191 states, 137 states have (on average 1.2773722627737227) internal successors, (175), 137 states have internal predecessors, (175), 35 states have call successors, (35), 18 states have call predecessors, (35), 18 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-01-09 17:18:58,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-01-09 17:18:58,891 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:18:58,892 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:18:58,892 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:18:58,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:18:58,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1734843285, now seen corresponding path program 1 times [2025-01-09 17:18:58,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:18:58,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592082641] [2025-01-09 17:18:58,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:18:58,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:19:02,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-01-09 17:19:03,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-01-09 17:19:03,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:19:03,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:19:03,564 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2025-01-09 17:19:03,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:19:03,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592082641] [2025-01-09 17:19:03,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592082641] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 17:19:03,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503271889] [2025-01-09 17:19:03,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:19:03,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 17:19:03,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 17:19:03,568 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 17:19:03,569 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 17:19:07,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-01-09 17:19:08,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-01-09 17:19:08,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:19:08,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:19:08,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 4093 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 17:19:08,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 17:19:08,162 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2025-01-09 17:19:08,163 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 17:19:08,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503271889] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:19:08,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 17:19:08,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 17:19:08,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804436958] [2025-01-09 17:19:08,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:19:08,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 17:19:08,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:19:08,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 17:19:08,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 17:19:08,181 INFO L87 Difference]: Start difference. First operand has 191 states, 137 states have (on average 1.2773722627737227) internal successors, (175), 137 states have internal predecessors, (175), 35 states have call successors, (35), 18 states have call predecessors, (35), 18 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 17:19:08,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:19:08,209 INFO L93 Difference]: Finished difference Result 371 states and 495 transitions. [2025-01-09 17:19:08,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 17:19:08,210 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 70 [2025-01-09 17:19:08,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:19:08,216 INFO L225 Difference]: With dead ends: 371 [2025-01-09 17:19:08,216 INFO L226 Difference]: Without dead ends: 184 [2025-01-09 17:19:08,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 71 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 17:19:08,221 INFO L435 NwaCegarLoop]: 240 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, 240 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 17:19:08,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 17:19:08,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2025-01-09 17:19:08,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2025-01-09 17:19:08,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 130 states have (on average 1.2615384615384615) internal successors, (164), 131 states have internal predecessors, (164), 35 states have call successors, (35), 18 states have call predecessors, (35), 18 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-01-09 17:19:08,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 233 transitions. [2025-01-09 17:19:08,268 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 233 transitions. Word has length 70 [2025-01-09 17:19:08,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:19:08,270 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 233 transitions. [2025-01-09 17:19:08,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 17:19:08,270 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 233 transitions. [2025-01-09 17:19:08,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-01-09 17:19:08,273 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:19:08,274 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:08,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 17:19:08,474 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 17:19:08,475 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:19:08,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:19:08,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1662150887, now seen corresponding path program 1 times [2025-01-09 17:19:08,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:19:08,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426732312] [2025-01-09 17:19:08,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:19:08,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:19:12,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-01-09 17:19:12,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-01-09 17:19:12,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:19:12,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:19:13,062 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-09 17:19:13,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:19:13,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426732312] [2025-01-09 17:19:13,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426732312] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:19:13,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:19:13,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 17:19:13,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109093960] [2025-01-09 17:19:13,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:19:13,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 17:19:13,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:19:13,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 17:19:13,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:19:13,067 INFO L87 Difference]: Start difference. First operand 184 states and 233 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 17:19:13,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:19:13,206 INFO L93 Difference]: Finished difference Result 316 states and 390 transitions. [2025-01-09 17:19:13,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 17:19:13,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 70 [2025-01-09 17:19:13,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:19:13,210 INFO L225 Difference]: With dead ends: 316 [2025-01-09 17:19:13,210 INFO L226 Difference]: Without dead ends: 186 [2025-01-09 17:19:13,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:19:13,211 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:19:13,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 688 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 17:19:13,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2025-01-09 17:19:13,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2025-01-09 17:19:13,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 132 states have (on average 1.2575757575757576) internal successors, (166), 133 states have internal predecessors, (166), 35 states have call successors, (35), 18 states have call predecessors, (35), 18 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-01-09 17:19:13,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 235 transitions. [2025-01-09 17:19:13,232 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 235 transitions. Word has length 70 [2025-01-09 17:19:13,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:19:13,233 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 235 transitions. [2025-01-09 17:19:13,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 17:19:13,233 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 235 transitions. [2025-01-09 17:19:13,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-01-09 17:19:13,236 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:19:13,236 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:13,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 17:19:13,237 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:19:13,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:19:13,237 INFO L85 PathProgramCache]: Analyzing trace with hash -475052884, now seen corresponding path program 1 times [2025-01-09 17:19:13,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:19:13,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753472522] [2025-01-09 17:19:13,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:19:13,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:19:16,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-01-09 17:19:17,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-01-09 17:19:17,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:19:17,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:19:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-09 17:19:17,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:19:17,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753472522] [2025-01-09 17:19:17,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753472522] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:19:17,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:19:17,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 17:19:17,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405775955] [2025-01-09 17:19:17,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:19:17,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 17:19:17,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:19:17,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 17:19:17,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:19:17,800 INFO L87 Difference]: Start difference. First operand 186 states and 235 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 17:19:17,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:19:17,917 INFO L93 Difference]: Finished difference Result 224 states and 278 transitions. [2025-01-09 17:19:17,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 17:19:17,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2025-01-09 17:19:17,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:19:17,924 INFO L225 Difference]: With dead ends: 224 [2025-01-09 17:19:17,924 INFO L226 Difference]: Without dead ends: 190 [2025-01-09 17:19:17,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:19:17,925 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:19:17,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 688 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 17:19:17,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2025-01-09 17:19:17,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2025-01-09 17:19:17,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 135 states have (on average 1.2518518518518518) internal successors, (169), 136 states have internal predecessors, (169), 35 states have call successors, (35), 18 states have call predecessors, (35), 19 states have return successors, (35), 35 states have call predecessors, (35), 34 states have call successors, (35) [2025-01-09 17:19:17,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 239 transitions. [2025-01-09 17:19:17,943 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 239 transitions. Word has length 72 [2025-01-09 17:19:17,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:19:17,943 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 239 transitions. [2025-01-09 17:19:17,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 17:19:17,944 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 239 transitions. [2025-01-09 17:19:17,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-09 17:19:17,949 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:19:17,949 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:17,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 17:19:17,949 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:19:17,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:19:17,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1439224058, now seen corresponding path program 1 times [2025-01-09 17:19:17,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:19:17,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56479012] [2025-01-09 17:19:17,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:19:17,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:19:21,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-09 17:19:21,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-09 17:19:21,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:19:21,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:19:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-09 17:19:22,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:19:22,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56479012] [2025-01-09 17:19:22,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56479012] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:19:22,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:19:22,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 17:19:22,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474113890] [2025-01-09 17:19:22,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:19:22,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 17:19:22,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:19:22,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 17:19:22,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:19:22,111 INFO L87 Difference]: Start difference. First operand 190 states and 239 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 17:19:22,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:19:22,195 INFO L93 Difference]: Finished difference Result 224 states and 277 transitions. [2025-01-09 17:19:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 17:19:22,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2025-01-09 17:19:22,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:19:22,198 INFO L225 Difference]: With dead ends: 224 [2025-01-09 17:19:22,198 INFO L226 Difference]: Without dead ends: 190 [2025-01-09 17:19:22,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 17:19:22,198 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:19:22,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 690 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 17:19:22,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2025-01-09 17:19:22,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 186. [2025-01-09 17:19:22,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 132 states have (on average 1.2424242424242424) internal successors, (164), 133 states have internal predecessors, (164), 35 states have call successors, (35), 18 states have call predecessors, (35), 18 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-01-09 17:19:22,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 233 transitions. [2025-01-09 17:19:22,208 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 233 transitions. Word has length 77 [2025-01-09 17:19:22,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:19:22,209 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 233 transitions. [2025-01-09 17:19:22,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 17:19:22,209 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 233 transitions. [2025-01-09 17:19:22,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-01-09 17:19:22,210 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:19:22,210 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:22,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 17:19:22,210 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:19:22,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:19:22,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1011536445, now seen corresponding path program 1 times [2025-01-09 17:19:22,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:19:22,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071412111] [2025-01-09 17:19:22,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:19:22,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:19:25,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-01-09 17:19:25,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-01-09 17:19:25,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:19:25,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:19:26,682 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-09 17:19:26,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:19:26,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071412111] [2025-01-09 17:19:26,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071412111] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:19:26,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:19:26,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:19:26,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649438042] [2025-01-09 17:19:26,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:19:26,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:19:26,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:19:26,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:19:26,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:19:26,684 INFO L87 Difference]: Start difference. First operand 186 states and 233 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 17:19:26,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:19:26,863 INFO L93 Difference]: Finished difference Result 296 states and 363 transitions. [2025-01-09 17:19:26,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:19:26,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2025-01-09 17:19:26,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:19:26,868 INFO L225 Difference]: With dead ends: 296 [2025-01-09 17:19:26,868 INFO L226 Difference]: Without dead ends: 191 [2025-01-09 17:19:26,869 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 17:19:26,873 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 908 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 17:19:26,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 908 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 17:19:26,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2025-01-09 17:19:26,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2025-01-09 17:19:26,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 136 states have (on average 1.2352941176470589) internal successors, (168), 137 states have internal predecessors, (168), 35 states have call successors, (35), 18 states have call predecessors, (35), 19 states have return successors, (37), 35 states have call predecessors, (37), 34 states have call successors, (37) [2025-01-09 17:19:26,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 240 transitions. [2025-01-09 17:19:26,885 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 240 transitions. Word has length 94 [2025-01-09 17:19:26,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:19:26,886 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 240 transitions. [2025-01-09 17:19:26,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 17:19:26,886 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 240 transitions. [2025-01-09 17:19:26,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-01-09 17:19:26,888 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:19:26,888 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:26,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 17:19:26,888 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:19:26,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:19:26,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1521911148, now seen corresponding path program 1 times [2025-01-09 17:19:26,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:19:26,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153153142] [2025-01-09 17:19:26,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:19:26,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:19:30,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-01-09 17:19:30,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-01-09 17:19:30,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:19:30,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:19:33,106 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-09 17:19:33,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:19:33,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153153142] [2025-01-09 17:19:33,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153153142] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:19:33,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:19:33,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 17:19:33,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902374924] [2025-01-09 17:19:33,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:19:33,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 17:19:33,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:19:33,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 17:19:33,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 17:19:33,109 INFO L87 Difference]: Start difference. First operand 191 states and 240 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 17:19:37,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 17:19:41,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 17:19:45,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 17:19:50,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 17:19:54,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 17:19:57,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:19:57,800 INFO L93 Difference]: Finished difference Result 235 states and 292 transitions. [2025-01-09 17:19:57,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 17:19:57,806 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 100 [2025-01-09 17:19:57,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:19:57,808 INFO L225 Difference]: With dead ends: 235 [2025-01-09 17:19:57,808 INFO L226 Difference]: Without dead ends: 199 [2025-01-09 17:19:57,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-01-09 17:19:57,809 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 11 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2025-01-09 17:19:57,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1264 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 5 Unknown, 0 Unchecked, 24.1s Time] [2025-01-09 17:19:57,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2025-01-09 17:19:57,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 196. [2025-01-09 17:19:57,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 140 states have (on average 1.2357142857142858) internal successors, (173), 142 states have internal predecessors, (173), 35 states have call successors, (35), 18 states have call predecessors, (35), 20 states have return successors, (38), 35 states have call predecessors, (38), 34 states have call successors, (38) [2025-01-09 17:19:57,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 246 transitions. [2025-01-09 17:19:57,827 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 246 transitions. Word has length 100 [2025-01-09 17:19:57,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:19:57,828 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 246 transitions. [2025-01-09 17:19:57,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 17:19:57,828 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 246 transitions. [2025-01-09 17:19:57,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-01-09 17:19:57,829 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:19:57,829 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:57,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 17:19:57,829 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:19:57,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:19:57,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1128884138, now seen corresponding path program 1 times [2025-01-09 17:19:57,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:19:57,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195409680] [2025-01-09 17:19:57,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:19:57,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:20:01,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-01-09 17:20:01,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-01-09 17:20:01,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:20:01,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:20:02,618 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-09 17:20:02,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:20:02,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195409680] [2025-01-09 17:20:02,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195409680] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:20:02,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:20:02,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 17:20:02,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95155341] [2025-01-09 17:20:02,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:20:02,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 17:20:02,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:20:02,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 17:20:02,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 17:20:02,620 INFO L87 Difference]: Start difference. First operand 196 states and 246 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 17:20:02,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 17:20:02,859 INFO L93 Difference]: Finished difference Result 242 states and 300 transitions. [2025-01-09 17:20:02,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 17:20:02,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 100 [2025-01-09 17:20:02,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 17:20:02,861 INFO L225 Difference]: With dead ends: 242 [2025-01-09 17:20:02,861 INFO L226 Difference]: Without dead ends: 201 [2025-01-09 17:20:02,861 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 17:20:02,862 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 5 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 17:20:02,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 677 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 17:20:02,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2025-01-09 17:20:02,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2025-01-09 17:20:02,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 141 states have (on average 1.2340425531914894) internal successors, (174), 143 states have internal predecessors, (174), 36 states have call successors, (36), 18 states have call predecessors, (36), 20 states have return successors, (39), 36 states have call predecessors, (39), 35 states have call successors, (39) [2025-01-09 17:20:02,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 249 transitions. [2025-01-09 17:20:02,872 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 249 transitions. Word has length 100 [2025-01-09 17:20:02,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 17:20:02,872 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 249 transitions. [2025-01-09 17:20:02,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 17:20:02,873 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 249 transitions. [2025-01-09 17:20:02,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-01-09 17:20:02,873 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 17:20:02,874 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:02,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 17:20:02,874 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 17:20:02,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 17:20:02,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1119241339, now seen corresponding path program 1 times [2025-01-09 17:20:02,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 17:20:02,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849161229] [2025-01-09 17:20:02,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 17:20:02,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 17:20:06,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-01-09 17:20:06,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-01-09 17:20:06,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 17:20:06,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 17:20:10,750 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-01-09 17:20:10,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 17:20:10,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849161229] [2025-01-09 17:20:10,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849161229] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 17:20:10,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 17:20:10,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 17:20:10,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419396095] [2025-01-09 17:20:10,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 17:20:10,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 17:20:10,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 17:20:10,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 17:20:10,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 17:20:10,752 INFO L87 Difference]: Start difference. First operand 198 states and 249 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 17:20:14,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 17:20:19,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []