./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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_swap_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 4327c1d0a3798141341f75fbfeacee6e434c9dfc309a1d3ed778376faac4823c --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 05:14:41,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 05:14:41,893 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 05:14:41,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 05:14:41,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 05:14:41,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 05:14:41,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 05:14:41,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 05:14:41,912 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 05:14:41,913 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 05:14:41,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 05:14:41,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 05:14:41,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 05:14:41,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 05:14:41,913 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 05:14:41,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 05:14:41,913 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 05:14:41,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 05:14:41,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 05:14:41,914 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 05:14:41,914 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 05:14:41,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 05:14:41,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 05:14:41,914 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 05:14:41,914 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 05:14:41,914 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 05:14:41,914 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 05:14:41,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 05:14:41,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 05:14:41,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:14:41,914 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 05:14:41,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 05:14:41,915 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 05:14:41,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 05:14:41,915 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 05:14:41,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 05:14:41,915 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 05:14:41,915 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 05:14:41,915 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 05:14:41,915 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 05:14:41,915 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 -> 4327c1d0a3798141341f75fbfeacee6e434c9dfc309a1d3ed778376faac4823c [2025-02-06 05:14:42,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 05:14:42,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 05:14:42,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 05:14:42,166 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 05:14:42,166 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 05:14:42,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i [2025-02-06 05:14:43,443 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e825b933e/a6738e764acb4058892f5fd79efd3140/FLAGf6a95b9f0 [2025-02-06 05:14:43,956 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 05:14:43,956 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i [2025-02-06 05:14:43,997 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e825b933e/a6738e764acb4058892f5fd79efd3140/FLAGf6a95b9f0 [2025-02-06 05:14:44,020 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e825b933e/a6738e764acb4058892f5fd79efd3140 [2025-02-06 05:14:44,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 05:14:44,024 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 05:14:44,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 05:14:44,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 05:14:44,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 05:14:44,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:14:44" (1/1) ... [2025-02-06 05:14:44,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14614e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:44, skipping insertion in model container [2025-02-06 05:14:44,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:14:44" (1/1) ... [2025-02-06 05:14:44,105 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 05:14:44,378 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_swap_harness_negated.i[4493,4506] [2025-02-06 05:14:44,389 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_swap_harness_negated.i[4553,4566] [2025-02-06 05:14:45,974 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:45,975 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:45,975 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:45,975 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:45,976 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:45,985 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:45,985 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:45,986 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:45,987 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:45,988 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:45,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:45,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:45,989 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,137 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,138 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,162 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,163 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,169 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,170 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,183 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,184 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,184 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,184 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,184 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,212 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_swap_harness_negated.i[228391,228404] [2025-02-06 05:14:47,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:14:47,235 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 05:14:47,243 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_swap_harness_negated.i[4493,4506] [2025-02-06 05:14:47,244 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_swap_harness_negated.i[4553,4566] [2025-02-06 05:14:47,272 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,273 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,273 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,273 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,274 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,278 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,281 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,283 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,283 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,283 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,284 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,284 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,284 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2025-02-06 05:14:47,414 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,414 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,419 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,419 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,421 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,421 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,426 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,426 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,427 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,427 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,427 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,427 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,427 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-06 05:14:47,439 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_swap_harness_negated.i[228391,228404] [2025-02-06 05:14:47,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 05:14:47,667 INFO L204 MainTranslator]: Completed translation [2025-02-06 05:14:47,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47 WrapperNode [2025-02-06 05:14:47,668 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 05:14:47,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 05:14:47,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 05:14:47,670 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 05:14:47,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47" (1/1) ... [2025-02-06 05:14:47,749 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47" (1/1) ... [2025-02-06 05:14:47,817 INFO L138 Inliner]: procedures = 763, calls = 2436, calls flagged for inlining = 67, calls inlined = 9, statements flattened = 598 [2025-02-06 05:14:47,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 05:14:47,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 05:14:47,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 05:14:47,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 05:14:47,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47" (1/1) ... [2025-02-06 05:14:47,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47" (1/1) ... [2025-02-06 05:14:47,841 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47" (1/1) ... [2025-02-06 05:14:47,897 INFO L175 MemorySlicer]: Split 284 memory accesses to 9 slices as follows [2, 2, 238, 9, 17, 2, 6, 3, 5]. 84 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 6, 0, 0, 0, 0, 0, 5]. The 240 writes are split as follows [0, 0, 232, 3, 1, 1, 2, 1, 0]. [2025-02-06 05:14:47,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47" (1/1) ... [2025-02-06 05:14:47,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47" (1/1) ... [2025-02-06 05:14:47,919 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47" (1/1) ... [2025-02-06 05:14:47,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47" (1/1) ... [2025-02-06 05:14:47,933 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47" (1/1) ... [2025-02-06 05:14:47,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47" (1/1) ... [2025-02-06 05:14:47,947 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 05:14:47,948 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 05:14:47,948 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 05:14:47,948 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 05:14:47,948 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47" (1/1) ... [2025-02-06 05:14:47,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 05:14:47,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:14:47,980 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) [2025-02-06 05:14:47,988 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 [2025-02-06 05:14:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-06 05:14:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_hash_table [2025-02-06 05:14:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_hash_table [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 05:14:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 05:14:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 05:14:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-06 05:14:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-02-06 05:14:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 05:14:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 05:14:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 05:14:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 05:14:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 05:14:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 05:14:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 05:14:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 05:14:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-06 05:14:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-06 05:14:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-06 05:14:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 05:14:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 05:14:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-06 05:14:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-06 05:14:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 05:14:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 05:14:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-06 05:14:48,008 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-06 05:14:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-06 05:14:48,008 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-06 05:14:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 05:14:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 05:14:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 05:14:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 05:14:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 05:14:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 05:14:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 05:14:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-06 05:14:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 05:14:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-06 05:14:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-06 05:14:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_allocated_hash_table [2025-02-06 05:14:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_allocated_hash_table [2025-02-06 05:14:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-06 05:14:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-06 05:14:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-06 05:14:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure check_hash_table_unchanged [2025-02-06 05:14:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hash_table_unchanged [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-06 05:14:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-06 05:14:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-06 05:14:48,279 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 05:14:48,281 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 05:14:48,320 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-06 05:14:48,340 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-06 05:14:48,342 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-06 05:14:48,412 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-02-06 05:14:48,485 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L10069: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-02-06 05:14:48,508 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L9956: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-02-06 05:14:48,561 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-06 05:14:48,582 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-06 05:14:53,691 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2025-02-06 05:14:53,692 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 05:14:53,704 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 05:14:53,704 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 05:14:53,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:14:53 BoogieIcfgContainer [2025-02-06 05:14:53,705 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 05:14:53,706 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 05:14:53,706 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 05:14:53,710 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 05:14:53,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:14:44" (1/3) ... [2025-02-06 05:14:53,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bb5762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:14:53, skipping insertion in model container [2025-02-06 05:14:53,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:14:47" (2/3) ... [2025-02-06 05:14:53,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bb5762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:14:53, skipping insertion in model container [2025-02-06 05:14:53,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:14:53" (3/3) ... [2025-02-06 05:14:53,712 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_swap_harness_negated.i [2025-02-06 05:14:53,723 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 05:14:53,725 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_swap_harness_negated.i that has 17 procedures, 142 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-06 05:14:53,763 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 05:14:53,772 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;@1631ae90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 05:14:53,772 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 05:14:53,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 89 states have (on average 1.202247191011236) internal successors, (107), 94 states have internal predecessors, (107), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-02-06 05:14:53,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-06 05:14:53,780 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:14:53,781 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:14:53,781 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:14:53,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:14:53,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1081493422, now seen corresponding path program 1 times [2025-02-06 05:14:53,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:14:53,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633447584] [2025-02-06 05:14:53,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:53,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:14:58,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 05:14:58,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 05:14:58,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:14:58,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:14:59,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 05:14:59,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:14:59,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633447584] [2025-02-06 05:14:59,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633447584] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:14:59,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:14:59,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 05:14:59,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912229645] [2025-02-06 05:14:59,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:14:59,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 05:14:59,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:14:59,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 05:14:59,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:14:59,267 INFO L87 Difference]: Start difference. First operand has 142 states, 89 states have (on average 1.202247191011236) internal successors, (107), 94 states have internal predecessors, (107), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 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 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 05:14:59,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:14:59,312 INFO L93 Difference]: Finished difference Result 280 states and 374 transitions. [2025-02-06 05:14:59,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 05:14:59,314 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-02-06 05:14:59,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:14:59,320 INFO L225 Difference]: With dead ends: 280 [2025-02-06 05:14:59,320 INFO L226 Difference]: Without dead ends: 137 [2025-02-06 05:14:59,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 05:14:59,329 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 05:14:59,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 05:14:59,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2025-02-06 05:14:59,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2025-02-06 05:14:59,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 89 states have internal predecessors, (99), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-02-06 05:14:59,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 168 transitions. [2025-02-06 05:14:59,371 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 168 transitions. Word has length 25 [2025-02-06 05:14:59,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:14:59,371 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 168 transitions. [2025-02-06 05:14:59,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 05:14:59,373 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 168 transitions. [2025-02-06 05:14:59,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-06 05:14:59,374 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:14:59,374 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:14:59,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 05:14:59,375 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:14:59,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:14:59,376 INFO L85 PathProgramCache]: Analyzing trace with hash -2078565775, now seen corresponding path program 1 times [2025-02-06 05:14:59,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:14:59,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805206301] [2025-02-06 05:14:59,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:14:59,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:15:03,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 05:15:03,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 05:15:03,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:03,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:03,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 05:15:03,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:15:03,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805206301] [2025-02-06 05:15:03,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805206301] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:15:03,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:15:03,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 05:15:03,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958740176] [2025-02-06 05:15:03,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:15:03,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 05:15:03,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:15:03,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 05:15:03,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 05:15:03,885 INFO L87 Difference]: Start difference. First operand 137 states and 168 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 05:15:03,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:15:03,983 INFO L93 Difference]: Finished difference Result 192 states and 238 transitions. [2025-02-06 05:15:03,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 05:15:03,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-02-06 05:15:03,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:15:03,987 INFO L225 Difference]: With dead ends: 192 [2025-02-06 05:15:03,989 INFO L226 Difference]: Without dead ends: 148 [2025-02-06 05:15:03,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 05:15:03,990 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 2 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 05:15:03,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 328 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 05:15:03,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2025-02-06 05:15:04,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2025-02-06 05:15:04,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 91 states have (on average 1.164835164835165) internal successors, (106), 95 states have internal predecessors, (106), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-02-06 05:15:04,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2025-02-06 05:15:04,011 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 25 [2025-02-06 05:15:04,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:15:04,012 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2025-02-06 05:15:04,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 05:15:04,013 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2025-02-06 05:15:04,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-02-06 05:15:04,014 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:15:04,014 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:15:04,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 05:15:04,014 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:15:04,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:15:04,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1629139524, now seen corresponding path program 1 times [2025-02-06 05:15:04,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:15:04,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961585030] [2025-02-06 05:15:04,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:04,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:15:07,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 05:15:07,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 05:15:07,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:07,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 05:15:08,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:15:08,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961585030] [2025-02-06 05:15:08,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961585030] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:15:08,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 05:15:08,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 05:15:08,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237398514] [2025-02-06 05:15:08,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:15:08,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 05:15:08,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:15:08,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 05:15:08,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 05:15:08,258 INFO L87 Difference]: Start difference. First operand 148 states and 185 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 05:15:08,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:15:08,334 INFO L93 Difference]: Finished difference Result 202 states and 250 transitions. [2025-02-06 05:15:08,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 05:15:08,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2025-02-06 05:15:08,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:15:08,339 INFO L225 Difference]: With dead ends: 202 [2025-02-06 05:15:08,339 INFO L226 Difference]: Without dead ends: 157 [2025-02-06 05:15:08,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 05:15:08,340 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 2 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 05:15:08,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 330 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 05:15:08,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-02-06 05:15:08,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2025-02-06 05:15:08,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 96 states have (on average 1.1458333333333333) internal successors, (110), 99 states have internal predecessors, (110), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2025-02-06 05:15:08,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 196 transitions. [2025-02-06 05:15:08,363 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 196 transitions. Word has length 26 [2025-02-06 05:15:08,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:15:08,365 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 196 transitions. [2025-02-06 05:15:08,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 05:15:08,365 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 196 transitions. [2025-02-06 05:15:08,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-02-06 05:15:08,370 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:15:08,370 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:15:08,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 05:15:08,370 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:15:08,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:15:08,371 INFO L85 PathProgramCache]: Analyzing trace with hash -934386176, now seen corresponding path program 1 times [2025-02-06 05:15:08,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:15:08,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827669639] [2025-02-06 05:15:08,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:08,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:15:12,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-02-06 05:15:12,704 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-02-06 05:15:12,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:12,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:13,679 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-02-06 05:15:13,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:15:13,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827669639] [2025-02-06 05:15:13,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827669639] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:15:13,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730422523] [2025-02-06 05:15:13,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:13,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:13,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:15:13,684 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) [2025-02-06 05:15:13,689 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 [2025-02-06 05:15:18,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-02-06 05:15:18,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-02-06 05:15:18,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:18,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:18,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 4483 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 05:15:18,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:15:18,677 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-02-06 05:15:18,679 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:15:18,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730422523] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:15:18,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:15:18,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-02-06 05:15:18,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855033994] [2025-02-06 05:15:18,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:15:18,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 05:15:18,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:15:18,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 05:15:18,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:15:18,686 INFO L87 Difference]: Start difference. First operand 157 states and 196 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2025-02-06 05:15:18,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:15:18,882 INFO L93 Difference]: Finished difference Result 313 states and 397 transitions. [2025-02-06 05:15:18,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 05:15:18,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 128 [2025-02-06 05:15:18,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:15:18,884 INFO L225 Difference]: With dead ends: 313 [2025-02-06 05:15:18,884 INFO L226 Difference]: Without dead ends: 162 [2025-02-06 05:15:18,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 05:15:18,885 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 05:15:18,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 652 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 05:15:18,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2025-02-06 05:15:18,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2025-02-06 05:15:18,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 100 states have (on average 1.14) internal successors, (114), 103 states have internal predecessors, (114), 44 states have call successors, (44), 16 states have call predecessors, (44), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2025-02-06 05:15:18,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 201 transitions. [2025-02-06 05:15:18,901 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 201 transitions. Word has length 128 [2025-02-06 05:15:18,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:15:18,901 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 201 transitions. [2025-02-06 05:15:18,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2025-02-06 05:15:18,901 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 201 transitions. [2025-02-06 05:15:18,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-02-06 05:15:18,907 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:15:18,907 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:15:18,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 05:15:19,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:19,111 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:15:19,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:15:19,112 INFO L85 PathProgramCache]: Analyzing trace with hash 246150362, now seen corresponding path program 1 times [2025-02-06 05:15:19,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:15:19,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526479079] [2025-02-06 05:15:19,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:19,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:15:22,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-06 05:15:23,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-06 05:15:23,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:23,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-02-06 05:15:26,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:15:26,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526479079] [2025-02-06 05:15:26,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526479079] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:15:26,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734424508] [2025-02-06 05:15:26,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:26,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:26,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:15:26,473 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:15:26,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 05:15:31,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-06 05:15:31,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-06 05:15:31,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:31,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:31,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 4491 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-02-06 05:15:31,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:15:32,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 05:15:35,277 INFO L349 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2025-02-06 05:15:35,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 30 [2025-02-06 05:15:35,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2025-02-06 05:15:35,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 58 [2025-02-06 05:15:35,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 21 [2025-02-06 05:15:35,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2025-02-06 05:15:35,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2025-02-06 05:15:37,091 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-02-06 05:15:37,092 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:15:37,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734424508] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:15:37,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:15:37,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [11] total 18 [2025-02-06 05:15:37,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76888172] [2025-02-06 05:15:37,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:15:37,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 05:15:37,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:15:37,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 05:15:37,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2025-02-06 05:15:37,094 INFO L87 Difference]: Start difference. First operand 162 states and 201 transitions. Second operand has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) [2025-02-06 05:15:46,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 05:15:48,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:15:48,565 INFO L93 Difference]: Finished difference Result 424 states and 516 transitions. [2025-02-06 05:15:48,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 05:15:48,566 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) Word has length 140 [2025-02-06 05:15:48,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:15:48,569 INFO L225 Difference]: With dead ends: 424 [2025-02-06 05:15:48,569 INFO L226 Difference]: Without dead ends: 264 [2025-02-06 05:15:48,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 126 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2025-02-06 05:15:48,571 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 90 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2025-02-06 05:15:48,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 2048 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 752 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2025-02-06 05:15:48,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2025-02-06 05:15:48,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 258. [2025-02-06 05:15:48,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 165 states have (on average 1.1454545454545455) internal successors, (189), 168 states have internal predecessors, (189), 61 states have call successors, (61), 31 states have call predecessors, (61), 31 states have return successors, (60), 59 states have call predecessors, (60), 58 states have call successors, (60) [2025-02-06 05:15:48,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 310 transitions. [2025-02-06 05:15:48,593 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 310 transitions. Word has length 140 [2025-02-06 05:15:48,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:15:48,593 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 310 transitions. [2025-02-06 05:15:48,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) [2025-02-06 05:15:48,593 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 310 transitions. [2025-02-06 05:15:48,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-02-06 05:15:48,595 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:15:48,595 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:15:48,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 05:15:48,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:48,795 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:15:48,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:15:48,796 INFO L85 PathProgramCache]: Analyzing trace with hash -196676230, now seen corresponding path program 1 times [2025-02-06 05:15:48,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:15:48,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550992233] [2025-02-06 05:15:48,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:48,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:15:52,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-06 05:15:52,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-06 05:15:52,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:52,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:53,184 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-02-06 05:15:53,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:15:53,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550992233] [2025-02-06 05:15:53,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550992233] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:15:53,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819572613] [2025-02-06 05:15:53,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:53,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:53,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:15:53,187 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:15:53,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 05:15:57,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-06 05:15:57,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-06 05:15:57,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:15:57,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:15:58,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 4481 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 05:15:58,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:15:58,566 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-06 05:15:58,567 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:15:58,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819572613] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:15:58,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:15:58,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 05:15:58,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292820239] [2025-02-06 05:15:58,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:15:58,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:15:58,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:15:58,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:15:58,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-06 05:15:58,569 INFO L87 Difference]: Start difference. First operand 258 states and 310 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 05:15:59,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:15:59,594 INFO L93 Difference]: Finished difference Result 448 states and 542 transitions. [2025-02-06 05:15:59,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:15:59,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 140 [2025-02-06 05:15:59,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:15:59,596 INFO L225 Difference]: With dead ends: 448 [2025-02-06 05:15:59,596 INFO L226 Difference]: Without dead ends: 270 [2025-02-06 05:15:59,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-02-06 05:15:59,598 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 170 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-06 05:15:59,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 562 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-06 05:15:59,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2025-02-06 05:15:59,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2025-02-06 05:15:59,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 173 states have (on average 1.1445086705202312) internal successors, (198), 178 states have internal predecessors, (198), 63 states have call successors, (63), 31 states have call predecessors, (63), 33 states have return successors, (66), 61 states have call predecessors, (66), 60 states have call successors, (66) [2025-02-06 05:15:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 327 transitions. [2025-02-06 05:15:59,611 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 327 transitions. Word has length 140 [2025-02-06 05:15:59,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:15:59,612 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 327 transitions. [2025-02-06 05:15:59,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 05:15:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 327 transitions. [2025-02-06 05:15:59,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-06 05:15:59,613 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:15:59,613 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:15:59,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 05:15:59,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:15:59,814 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:15:59,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:15:59,815 INFO L85 PathProgramCache]: Analyzing trace with hash -339262463, now seen corresponding path program 1 times [2025-02-06 05:15:59,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:15:59,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027060707] [2025-02-06 05:15:59,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:15:59,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:16:03,412 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-06 05:16:03,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-06 05:16:03,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:16:03,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:16:04,494 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-02-06 05:16:04,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 05:16:04,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027060707] [2025-02-06 05:16:04,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027060707] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 05:16:04,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10888497] [2025-02-06 05:16:04,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:16:04,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 05:16:04,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 05:16:04,526 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 05:16:04,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 05:16:09,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-06 05:16:09,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-06 05:16:09,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:16:09,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 05:16:09,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 4488 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 05:16:09,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 05:16:10,232 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-06 05:16:10,232 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 05:16:10,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10888497] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 05:16:10,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 05:16:10,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-06 05:16:10,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432358203] [2025-02-06 05:16:10,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 05:16:10,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 05:16:10,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 05:16:10,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 05:16:10,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-06 05:16:10,236 INFO L87 Difference]: Start difference. First operand 270 states and 327 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 05:16:11,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 05:16:11,081 INFO L93 Difference]: Finished difference Result 402 states and 483 transitions. [2025-02-06 05:16:11,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 05:16:11,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 141 [2025-02-06 05:16:11,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 05:16:11,084 INFO L225 Difference]: With dead ends: 402 [2025-02-06 05:16:11,084 INFO L226 Difference]: Without dead ends: 256 [2025-02-06 05:16:11,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-02-06 05:16:11,085 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 173 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 05:16:11,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 418 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 05:16:11,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2025-02-06 05:16:11,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2025-02-06 05:16:11,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 163 states have (on average 1.1288343558282208) internal successors, (184), 166 states have internal predecessors, (184), 61 states have call successors, (61), 31 states have call predecessors, (61), 31 states have return successors, (60), 59 states have call predecessors, (60), 58 states have call successors, (60) [2025-02-06 05:16:11,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 305 transitions. [2025-02-06 05:16:11,101 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 305 transitions. Word has length 141 [2025-02-06 05:16:11,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 05:16:11,101 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 305 transitions. [2025-02-06 05:16:11,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-02-06 05:16:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 305 transitions. [2025-02-06 05:16:11,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-02-06 05:16:11,103 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 05:16:11,103 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 05:16:11,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 05:16:11,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-02-06 05:16:11,307 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 05:16:11,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 05:16:11,308 INFO L85 PathProgramCache]: Analyzing trace with hash -2135353903, now seen corresponding path program 1 times [2025-02-06 05:16:11,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 05:16:11,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725270564] [2025-02-06 05:16:11,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 05:16:11,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 05:16:15,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-06 05:16:15,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-06 05:16:15,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 05:16:15,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat