./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 48c9605d 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-?-48c9605-m [2025-02-08 01:51:38,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:51:38,906 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:51:38,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:51:38,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:51:38,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:51:38,943 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:51:38,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:51:38,944 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:51:38,944 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:51:38,945 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:51:38,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:51:38,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:51:38,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:51:38,946 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:51:38,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:51:38,946 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:51:38,947 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:51:38,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:51:38,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:51:38,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:51:38,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:51:38,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:51:38,947 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:51:38,947 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:51:38,948 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:51:38,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:51:38,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:51:38,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:51:38,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:51:38,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:51:38,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:51:38,949 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:51:38,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:51:38,949 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:51:38,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:51:38,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:51:38,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:51:38,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:51:38,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:51:38,950 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 [2025-02-08 01:51:39,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:51:39,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:51:39,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:51:39,257 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:51:39,257 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:51:39,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i [2025-02-08 01:51:40,644 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f98201ce5/1576ed53a9d2433e9f80e16caa0f31c4/FLAGb00dacca0 [2025-02-08 01:51:41,300 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:51:41,301 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness_negated.i [2025-02-08 01:51:41,353 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f98201ce5/1576ed53a9d2433e9f80e16caa0f31c4/FLAGb00dacca0 [2025-02-08 01:51:41,373 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f98201ce5/1576ed53a9d2433e9f80e16caa0f31c4 [2025-02-08 01:51:41,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:51:41,376 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:51:41,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:51:41,379 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:51:41,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:51:41,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:51:41" (1/1) ... [2025-02-08 01:51:41,386 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a19dd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:41, skipping insertion in model container [2025-02-08 01:51:41,386 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:51:41" (1/1) ... [2025-02-08 01:51:41,491 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:51:41,801 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] [2025-02-08 01:51:41,813 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] [2025-02-08 01:51:42,536 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:42,538 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:42,538 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:42,539 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:42,539 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:42,553 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:42,554 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:42,557 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:42,558 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:42,559 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:42,560 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:42,560 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:42,561 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,752 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,752 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,798 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,799 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,808 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,808 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,834 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,836 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,836 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,837 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,837 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,837 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,838 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:43,926 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] [2025-02-08 01:51:43,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:51:43,966 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:51:43,981 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] [2025-02-08 01:51:43,986 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] [2025-02-08 01:51:44,038 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,039 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,039 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,039 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,040 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,049 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,050 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,051 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,054 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,055 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,056 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,056 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2025-02-08 01:51:44,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,235 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,240 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,243 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,244 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,257 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,258 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,258 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,261 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:51:44,284 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] [2025-02-08 01:51:44,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:51:44,492 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:51:44,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44 WrapperNode [2025-02-08 01:51:44,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:51:44,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:51:44,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:51:44,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:51:44,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44" (1/1) ... [2025-02-08 01:51:44,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44" (1/1) ... [2025-02-08 01:51:44,700 INFO L138 Inliner]: procedures = 763, calls = 2436, calls flagged for inlining = 67, calls inlined = 9, statements flattened = 598 [2025-02-08 01:51:44,701 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:51:44,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:51:44,702 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:51:44,702 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:51:44,711 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44" (1/1) ... [2025-02-08 01:51:44,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44" (1/1) ... [2025-02-08 01:51:44,726 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44" (1/1) ... [2025-02-08 01:51:44,812 INFO L175 MemorySlicer]: Split 284 memory accesses to 9 slices as follows [2, 238, 17, 3, 9, 2, 2, 5, 6]. 84 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 6, 0, 0, 0, 1, 0, 5, 0]. The 240 writes are split as follows [0, 232, 1, 1, 3, 0, 1, 0, 2]. [2025-02-08 01:51:44,812 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44" (1/1) ... [2025-02-08 01:51:44,812 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44" (1/1) ... [2025-02-08 01:51:44,849 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44" (1/1) ... [2025-02-08 01:51:44,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44" (1/1) ... [2025-02-08 01:51:44,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44" (1/1) ... [2025-02-08 01:51:44,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44" (1/1) ... [2025-02-08 01:51:44,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:51:44,881 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:51:44,881 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:51:44,881 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:51:44,886 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44" (1/1) ... [2025-02-08 01:51:44,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:51:44,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:51:44,922 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) [2025-02-08 01:51:44,930 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 [2025-02-08 01:51:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-08 01:51:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-08 01:51:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-08 01:51:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-08 01:51:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-08 01:51:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-08 01:51:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-02-08 01:51:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-02-08 01:51:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-02-08 01:51:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_hash_table [2025-02-08 01:51:44,952 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_hash_table [2025-02-08 01:51:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:51:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:51:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:51:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:51:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:51:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:51:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:51:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-08 01:51:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-08 01:51:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-02-08 01:51:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:51:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:51:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:51:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:51:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-02-08 01:51:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-02-08 01:51:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:51:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:51:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:51:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:51:44,955 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:51:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-02-08 01:51:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-02-08 01:51:44,956 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-02-08 01:51:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-02-08 01:51:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_allocated_hash_table [2025-02-08 01:51:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_allocated_hash_table [2025-02-08 01:51:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:51:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:51:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-02-08 01:51:44,957 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-02-08 01:51:44,960 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-02-08 01:51:44,961 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure check_hash_table_unchanged [2025-02-08 01:51:44,961 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hash_table_unchanged [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:51:44,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:51:44,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:51:44,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:51:44,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-08 01:51:44,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-08 01:51:44,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-08 01:51:44,962 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-02-08 01:51:44,962 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-02-08 01:51:45,358 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:51:45,360 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:51:45,430 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc588.base, #t~malloc588.offset; [2025-02-08 01:51:45,463 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-02-08 01:51:45,470 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-02-08 01:51:45,568 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7186: havoc save_byte_from_array_#t~mem634#1;call save_byte_from_array_#t~mem635#1 := read~int#8(save_byte_from_array_~storage#1.base, save_byte_from_array_~storage#1.offset, 8);call save_byte_from_array_#t~mem636#1 := read~int#2(save_byte_from_array_~array#1.base, save_byte_from_array_~array#1.offset + (if save_byte_from_array_#t~mem635#1 % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then save_byte_from_array_#t~mem635#1 % 18446744073709551616 % 18446744073709551616 else save_byte_from_array_#t~mem635#1 % 18446744073709551616 % 18446744073709551616 - 18446744073709551616), 1);call write~int#8(save_byte_from_array_#t~mem636#1, save_byte_from_array_~storage#1.base, 8 + save_byte_from_array_~storage#1.offset, 1);havoc save_byte_from_array_#t~mem635#1;havoc save_byte_from_array_#t~mem636#1; [2025-02-08 01:51:45,568 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7186-1: SUMMARY for call assume_abort_if_not((if 0 == (if save_byte_from_array_#t~mem634#1 % 18446744073709551616 < save_byte_from_array_~size#1 % 18446744073709551616 then 1 else 0) then 0 else 1)); srcloc: null [2025-02-08 01:51:45,568 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1;save_byte_from_array_#t~ret633#1 := nondet_size_t_#res#1;havoc nondet_size_t_#t~nondet6#1;assume { :end_inline_nondet_size_t } true;call write~int#8(save_byte_from_array_#t~ret633#1, save_byte_from_array_~storage#1.base, save_byte_from_array_~storage#1.offset, 8);havoc save_byte_from_array_#t~ret633#1;call save_byte_from_array_#t~mem634#1 := read~int#8(save_byte_from_array_~storage#1.base, save_byte_from_array_~storage#1.offset, 8); [2025-02-08 01:51:45,671 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L10069: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-02-08 01:51:45,701 INFO L1324 $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; [2025-02-08 01:51:45,778 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-02-08 01:51:45,793 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-02-08 01:51:51,145 INFO L? ?]: Removed 105 outVars from TransFormulas that were not future-live. [2025-02-08 01:51:51,146 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:51:51,164 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:51:51,164 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:51:51,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:51:51 BoogieIcfgContainer [2025-02-08 01:51:51,165 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:51:51,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:51:51,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:51:51,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:51:51,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:51:41" (1/3) ... [2025-02-08 01:51:51,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18079c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:51:51, skipping insertion in model container [2025-02-08 01:51:51,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:51:44" (2/3) ... [2025-02-08 01:51:51,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18079c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:51:51, skipping insertion in model container [2025-02-08 01:51:51,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:51:51" (3/3) ... [2025-02-08 01:51:51,174 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_swap_harness_negated.i [2025-02-08 01:51:51,190 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:51:51,192 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_swap_harness_negated.i that has 17 procedures, 135 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:51:51,247 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:51:51,257 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;@21068195, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:51:51,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:51:51,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 80 states have (on average 1.225) internal successors, (98), 88 states have internal predecessors, (98), 34 states have call successors, (34), 16 states have call predecessors, (34), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-02-08 01:51:51,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-08 01:51:51,267 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:51:51,268 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] [2025-02-08 01:51:51,268 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:51:51,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:51:51,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1960918382, now seen corresponding path program 1 times [2025-02-08 01:51:51,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:51:51,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666075264] [2025-02-08 01:51:51,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:51:51,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:51:56,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 01:51:56,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 01:51:56,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:51:56,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:51:56,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:51:56,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:51:56,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666075264] [2025-02-08 01:51:56,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666075264] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:51:56,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:51:56,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 01:51:56,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971363473] [2025-02-08 01:51:56,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:51:56,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:51:56,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:51:56,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:51:56,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:51:56,979 INFO L87 Difference]: Start difference. First operand has 135 states, 80 states have (on average 1.225) internal successors, (98), 88 states have internal predecessors, (98), 34 states have call successors, (34), 16 states have call predecessors, (34), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2025-02-08 01:51:57,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:51:57,040 INFO L93 Difference]: Finished difference Result 267 states and 352 transitions. [2025-02-08 01:51:57,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:51:57,044 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 23 [2025-02-08 01:51:57,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:51:57,051 INFO L225 Difference]: With dead ends: 267 [2025-02-08 01:51:57,051 INFO L226 Difference]: Without dead ends: 122 [2025-02-08 01:51:57,056 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 [2025-02-08 01:51:57,060 INFO L435 NwaCegarLoop]: 162 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, 162 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 [2025-02-08 01:51:57,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:51:57,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2025-02-08 01:51:57,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2025-02-08 01:51:57,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 74 states have (on average 1.1486486486486487) internal successors, (85), 78 states have internal predecessors, (85), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-02-08 01:51:57,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 148 transitions. [2025-02-08 01:51:57,118 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 148 transitions. Word has length 23 [2025-02-08 01:51:57,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:51:57,118 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 148 transitions. [2025-02-08 01:51:57,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2025-02-08 01:51:57,119 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 148 transitions. [2025-02-08 01:51:57,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-08 01:51:57,122 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:51:57,122 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] [2025-02-08 01:51:57,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:51:57,123 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:51:57,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:51:57,123 INFO L85 PathProgramCache]: Analyzing trace with hash -607608685, now seen corresponding path program 1 times [2025-02-08 01:51:57,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:51:57,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465814740] [2025-02-08 01:51:57,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:51:57,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:52:02,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 01:52:02,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 01:52:02,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:02,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:02,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:52:02,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:52:02,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465814740] [2025-02-08 01:52:02,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465814740] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:52:02,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:52:02,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 01:52:02,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044526424] [2025-02-08 01:52:02,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:52:02,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 01:52:02,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:52:02,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 01:52:02,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 01:52:02,969 INFO L87 Difference]: Start difference. First operand 122 states and 148 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2025-02-08 01:52:07,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:52:07,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:52:07,640 INFO L93 Difference]: Finished difference Result 176 states and 217 transitions. [2025-02-08 01:52:07,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 01:52:07,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 23 [2025-02-08 01:52:07,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:52:07,643 INFO L225 Difference]: With dead ends: 176 [2025-02-08 01:52:07,643 INFO L226 Difference]: Without dead ends: 132 [2025-02-08 01:52:07,643 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 [2025-02-08 01:52:07,644 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 2 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2025-02-08 01:52:07,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 288 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2025-02-08 01:52:07,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2025-02-08 01:52:07,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2025-02-08 01:52:07,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 79 states have (on average 1.1518987341772151) internal successors, (91), 83 states have internal predecessors, (91), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2025-02-08 01:52:07,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 164 transitions. [2025-02-08 01:52:07,657 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 164 transitions. Word has length 23 [2025-02-08 01:52:07,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:52:07,658 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 164 transitions. [2025-02-08 01:52:07,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2025-02-08 01:52:07,658 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 164 transitions. [2025-02-08 01:52:07,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-08 01:52:07,659 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:52:07,659 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] [2025-02-08 01:52:07,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:52:07,660 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:52:07,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:52:07,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1057134747, now seen corresponding path program 1 times [2025-02-08 01:52:07,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:52:07,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320697394] [2025-02-08 01:52:07,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:07,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:52:11,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 01:52:11,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 01:52:11,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:11,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:12,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:52:12,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:52:12,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320697394] [2025-02-08 01:52:12,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320697394] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:52:12,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:52:12,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 01:52:12,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210242977] [2025-02-08 01:52:12,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:52:12,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 01:52:12,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:52:12,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 01:52:12,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 01:52:12,176 INFO L87 Difference]: Start difference. First operand 132 states and 164 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2025-02-08 01:52:16,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:52:16,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:52:16,796 INFO L93 Difference]: Finished difference Result 184 states and 227 transitions. [2025-02-08 01:52:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 01:52:16,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 24 [2025-02-08 01:52:16,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:52:16,799 INFO L225 Difference]: With dead ends: 184 [2025-02-08 01:52:16,799 INFO L226 Difference]: Without dead ends: 140 [2025-02-08 01:52:16,799 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 [2025-02-08 01:52:16,800 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 2 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2025-02-08 01:52:16,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 290 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2025-02-08 01:52:16,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2025-02-08 01:52:16,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2025-02-08 01:52:16,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 83 states have (on average 1.1325301204819278) internal successors, (94), 86 states have internal predecessors, (94), 41 states have call successors, (41), 15 states have call predecessors, (41), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-02-08 01:52:16,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 174 transitions. [2025-02-08 01:52:16,816 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 174 transitions. Word has length 24 [2025-02-08 01:52:16,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:52:16,817 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 174 transitions. [2025-02-08 01:52:16,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2025-02-08 01:52:16,817 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 174 transitions. [2025-02-08 01:52:16,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-02-08 01:52:16,821 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:52:16,821 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:52:16,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:52:16,822 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:52:16,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:52:16,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1096716345, now seen corresponding path program 1 times [2025-02-08 01:52:16,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:52:16,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569740722] [2025-02-08 01:52:16,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:16,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:52:20,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-02-08 01:52:20,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-02-08 01:52:20,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:20,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:22,080 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-02-08 01:52:22,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:52:22,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569740722] [2025-02-08 01:52:22,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569740722] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:52:22,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690720132] [2025-02-08 01:52:22,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:22,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:52:22,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:52:22,086 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) [2025-02-08 01:52:22,088 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 [2025-02-08 01:52:26,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-02-08 01:52:27,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-02-08 01:52:27,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:27,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:27,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 4482 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 01:52:27,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:52:27,237 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-02-08 01:52:27,237 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:52:27,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690720132] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:52:27,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:52:27,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-02-08 01:52:27,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106205690] [2025-02-08 01:52:27,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:52:27,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:52:27,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:52:27,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:52:27,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:52:27,240 INFO L87 Difference]: Start difference. First operand 140 states and 174 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2025-02-08 01:52:27,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:52:27,382 INFO L93 Difference]: Finished difference Result 275 states and 348 transitions. [2025-02-08 01:52:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:52:27,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 124 [2025-02-08 01:52:27,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:52:27,385 INFO L225 Difference]: With dead ends: 275 [2025-02-08 01:52:27,387 INFO L226 Difference]: Without dead ends: 140 [2025-02-08 01:52:27,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:52:27,389 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:52:27,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 429 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 01:52:27,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2025-02-08 01:52:27,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2025-02-08 01:52:27,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 83 states have (on average 1.1204819277108433) internal successors, (93), 86 states have internal predecessors, (93), 41 states have call successors, (41), 15 states have call predecessors, (41), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-02-08 01:52:27,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 173 transitions. [2025-02-08 01:52:27,409 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 173 transitions. Word has length 124 [2025-02-08 01:52:27,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:52:27,409 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 173 transitions. [2025-02-08 01:52:27,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2025-02-08 01:52:27,410 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 173 transitions. [2025-02-08 01:52:27,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-02-08 01:52:27,415 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:52:27,415 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, 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] [2025-02-08 01:52:27,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:52:27,616 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 [2025-02-08 01:52:27,616 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:52:27,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:52:27,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2000193046, now seen corresponding path program 1 times [2025-02-08 01:52:27,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:52:27,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869961925] [2025-02-08 01:52:27,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:27,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:52:31,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-08 01:52:31,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-08 01:52:31,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:31,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:36,112 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-02-08 01:52:36,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:52:36,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869961925] [2025-02-08 01:52:36,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869961925] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:52:36,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440846133] [2025-02-08 01:52:36,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:36,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:52:36,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:52:36,115 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) [2025-02-08 01:52:36,116 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 [2025-02-08 01:52:40,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-08 01:52:40,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-08 01:52:40,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:40,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:40,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 4672 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 01:52:40,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:52:41,489 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-02-08 01:52:41,490 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:52:41,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440846133] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:52:41,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:52:41,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2025-02-08 01:52:41,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548568214] [2025-02-08 01:52:41,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:52:41,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:52:41,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:52:41,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:52:41,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:52:41,492 INFO L87 Difference]: Start difference. First operand 140 states and 173 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-08 01:52:41,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:52:41,614 INFO L93 Difference]: Finished difference Result 275 states and 346 transitions. [2025-02-08 01:52:41,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:52:41,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 147 [2025-02-08 01:52:41,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:52:41,616 INFO L225 Difference]: With dead ends: 275 [2025-02-08 01:52:41,616 INFO L226 Difference]: Without dead ends: 140 [2025-02-08 01:52:41,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-02-08 01:52:41,617 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 01:52:41,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 426 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 01:52:41,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2025-02-08 01:52:41,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2025-02-08 01:52:41,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 83 states have (on average 1.108433734939759) internal successors, (92), 86 states have internal predecessors, (92), 41 states have call successors, (41), 15 states have call predecessors, (41), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-02-08 01:52:41,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 172 transitions. [2025-02-08 01:52:41,633 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 172 transitions. Word has length 147 [2025-02-08 01:52:41,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:52:41,634 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 172 transitions. [2025-02-08 01:52:41,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2025-02-08 01:52:41,634 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 172 transitions. [2025-02-08 01:52:41,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-02-08 01:52:41,636 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:52:41,636 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, 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] [2025-02-08 01:52:41,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 01:52:41,837 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 [2025-02-08 01:52:41,837 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:52:41,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:52:41,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1243127442, now seen corresponding path program 1 times [2025-02-08 01:52:41,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:52:41,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223866415] [2025-02-08 01:52:41,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:41,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:52:45,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-08 01:52:45,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-08 01:52:45,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:45,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:49,902 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-02-08 01:52:49,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:52:49,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223866415] [2025-02-08 01:52:49,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223866415] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:52:49,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722484493] [2025-02-08 01:52:49,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:52:49,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:52:49,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:52:49,905 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) [2025-02-08 01:52:49,906 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 [2025-02-08 01:52:54,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-08 01:52:54,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-08 01:52:54,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:52:54,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:52:54,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 4674 conjuncts, 46 conjuncts are in the unsatisfiable core [2025-02-08 01:52:54,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:52:55,375 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 [2025-02-08 01:52:57,196 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-08 01:52:57,196 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:52:57,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722484493] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:52:57,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:52:57,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 16 [2025-02-08 01:52:57,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695681830] [2025-02-08 01:52:57,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:52:57,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 01:52:57,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:52:57,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 01:52:57,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2025-02-08 01:52:57,198 INFO L87 Difference]: Start difference. First operand 140 states and 172 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-02-08 01:53:01,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []