./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 6d54635a45b4bea3ce8bb2da849d6298e1094d0c6d7d45bb3baae6f41da1bbe7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 07:11:20,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 07:11:20,131 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 07:11:20,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 07:11:20,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 07:11:20,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 07:11:20,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 07:11:20,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 07:11:20,161 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 07:11:20,161 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 07:11:20,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 07:11:20,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 07:11:20,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 07:11:20,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 07:11:20,163 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 07:11:20,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 07:11:20,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 07:11:20,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 07:11:20,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 07:11:20,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 07:11:20,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 07:11:20,164 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 07:11:20,164 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 07:11:20,164 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 07:11:20,164 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 07:11:20,164 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 07:11:20,164 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 07:11:20,164 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 07:11:20,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 07:11:20,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:11:20,165 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 07:11:20,165 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 07:11:20,165 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 07:11:20,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 07:11:20,165 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 07:11:20,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 07:11:20,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 07:11:20,165 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 07:11:20,165 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 07:11:20,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 07:11:20,165 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/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 -> 6d54635a45b4bea3ce8bb2da849d6298e1094d0c6d7d45bb3baae6f41da1bbe7 [2025-03-17 07:11:20,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 07:11:20,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 07:11:20,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 07:11:20,393 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 07:11:20,394 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 07:11:20,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i [2025-03-17 07:11:21,516 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076d8eb84/9ce542ea1c0a4d8198b793ddcdc40642/FLAGc98625304 [2025-03-17 07:11:21,930 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 07:11:21,931 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i [2025-03-17 07:11:21,961 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076d8eb84/9ce542ea1c0a4d8198b793ddcdc40642/FLAGc98625304 [2025-03-17 07:11:22,074 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076d8eb84/9ce542ea1c0a4d8198b793ddcdc40642 [2025-03-17 07:11:22,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 07:11:22,077 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 07:11:22,078 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 07:11:22,078 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 07:11:22,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 07:11:22,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:11:22" (1/1) ... [2025-03-17 07:11:22,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53194f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:22, skipping insertion in model container [2025-03-17 07:11:22,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:11:22" (1/1) ... [2025-03-17 07:11:22,147 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 07:11:22,330 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4492,4505] [2025-03-17 07:11:22,337 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4552,4565] [2025-03-17 07:11:22,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:22,870 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:22,871 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:22,871 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:22,872 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:22,882 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:22,883 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:22,884 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:22,884 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:22,885 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:22,886 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:22,886 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:22,887 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,490 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,491 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,512 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,512 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,516 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,517 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,529 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,531 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,531 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,531 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,531 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,532 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,532 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,564 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[228041,228054] [2025-03-17 07:11:23,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:11:23,592 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 07:11:23,604 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4492,4505] [2025-03-17 07:11:23,605 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[4552,4565] [2025-03-17 07:11:23,639 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,639 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,640 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,640 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,640 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,644 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,646 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,647 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,647 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,648 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,648 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,648 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,648 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-03-17 07:11:23,802 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,803 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,807 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,807 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,809 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,810 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,817 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,818 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,818 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,818 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,818 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,819 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,819 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-17 07:11:23,836 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_done_harness.i[228041,228054] [2025-03-17 07:11:23,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 07:11:23,981 INFO L204 MainTranslator]: Completed translation [2025-03-17 07:11:23,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23 WrapperNode [2025-03-17 07:11:23,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 07:11:23,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 07:11:23,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 07:11:23,983 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 07:11:23,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23" (1/1) ... [2025-03-17 07:11:24,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23" (1/1) ... [2025-03-17 07:11:24,110 INFO L138 Inliner]: procedures = 763, calls = 2449, calls flagged for inlining = 68, calls inlined = 11, statements flattened = 644 [2025-03-17 07:11:24,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 07:11:24,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 07:11:24,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 07:11:24,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 07:11:24,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23" (1/1) ... [2025-03-17 07:11:24,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23" (1/1) ... [2025-03-17 07:11:24,128 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23" (1/1) ... [2025-03-17 07:11:24,192 INFO L175 MemorySlicer]: Split 318 memory accesses to 9 slices as follows [238, 2, 36, 7, 19, 3, 6, 2, 5]. 75 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [6, 2, 9, 0, 0, 0, 0, 0, 5]. The 239 writes are split as follows [232, 0, 1, 1, 1, 1, 2, 1, 0]. [2025-03-17 07:11:24,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23" (1/1) ... [2025-03-17 07:11:24,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23" (1/1) ... [2025-03-17 07:11:24,227 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23" (1/1) ... [2025-03-17 07:11:24,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23" (1/1) ... [2025-03-17 07:11:24,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23" (1/1) ... [2025-03-17 07:11:24,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23" (1/1) ... [2025-03-17 07:11:24,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 07:11:24,260 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 07:11:24,260 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 07:11:24,260 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 07:11:24,261 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23" (1/1) ... [2025-03-17 07:11:24,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 07:11:24,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:11:24,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 07:11:24,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 07:11:24,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-17 07:11:24,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-17 07:11:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-17 07:11:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-17 07:11:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-17 07:11:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-17 07:11:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-17 07:11:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-17 07:11:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-03-17 07:11:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 07:11:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 07:11:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 07:11:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 07:11:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 07:11:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 07:11:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 07:11:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-17 07:11:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-17 07:11:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-03-17 07:11:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 07:11:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 07:11:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 07:11:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 07:11:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 07:11:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 07:11:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-17 07:11:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-17 07:11:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-17 07:11:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_done [2025-03-17 07:11:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_done [2025-03-17 07:11:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-17 07:11:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-17 07:11:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 07:11:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 07:11:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-17 07:11:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-17 07:11:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 07:11:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 07:11:24,313 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-17 07:11:24,313 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 07:11:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-17 07:11:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-17 07:11:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 07:11:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-03-17 07:11:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-17 07:11:24,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-17 07:11:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-17 07:11:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-17 07:11:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-17 07:11:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-17 07:11:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 07:11:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-17 07:11:24,317 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-17 07:11:24,317 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-17 07:11:24,587 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 07:11:24,588 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 07:11:24,630 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-17 07:11:24,657 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-17 07:11:24,659 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-17 07:11:24,738 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-17 07:11:24,799 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L9990: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-03-17 07:11:24,822 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-17 07:11:24,837 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-17 07:11:29,922 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-17 07:11:29,996 INFO L? ?]: Removed 146 outVars from TransFormulas that were not future-live. [2025-03-17 07:11:29,996 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 07:11:30,007 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 07:11:30,009 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 07:11:30,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:11:30 BoogieIcfgContainer [2025-03-17 07:11:30,010 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 07:11:30,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 07:11:30,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 07:11:30,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 07:11:30,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:11:22" (1/3) ... [2025-03-17 07:11:30,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792b6bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:11:30, skipping insertion in model container [2025-03-17 07:11:30,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:11:23" (2/3) ... [2025-03-17 07:11:30,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792b6bbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:11:30, skipping insertion in model container [2025-03-17 07:11:30,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:11:30" (3/3) ... [2025-03-17 07:11:30,017 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_done_harness.i [2025-03-17 07:11:30,027 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 07:11:30,028 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_done_harness.i that has 16 procedures, 155 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-17 07:11:30,070 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 07:11:30,079 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;@55501c51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 07:11:30,080 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 07:11:30,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 98 states have (on average 1.2653061224489797) internal successors, (124), 99 states have internal predecessors, (124), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-03-17 07:11:30,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-17 07:11:30,092 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:11:30,093 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:11:30,093 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:11:30,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:11:30,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1912429151, now seen corresponding path program 1 times [2025-03-17 07:11:30,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:11:30,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992715187] [2025-03-17 07:11:30,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:30,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:11:34,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 07:11:34,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 07:11:34,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:34,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:35,140 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2025-03-17 07:11:35,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:11:35,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992715187] [2025-03-17 07:11:35,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992715187] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:11:35,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056752035] [2025-03-17 07:11:35,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:35,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:11:35,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:11:35,144 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 07:11:35,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 07:11:39,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 07:11:39,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 07:11:39,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:39,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:39,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 4446 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 07:11:39,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:11:39,964 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2025-03-17 07:11:39,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 07:11:39,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056752035] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:11:39,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 07:11:39,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 07:11:39,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919001132] [2025-03-17 07:11:39,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:11:39,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 07:11:39,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:11:39,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 07:11:39,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:11:39,983 INFO L87 Difference]: Start difference. First operand has 155 states, 98 states have (on average 1.2653061224489797) internal successors, (124), 99 states have internal predecessors, (124), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 07:11:40,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:11:40,029 INFO L93 Difference]: Finished difference Result 303 states and 431 transitions. [2025-03-17 07:11:40,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 07:11:40,031 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 139 [2025-03-17 07:11:40,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:11:40,037 INFO L225 Difference]: With dead ends: 303 [2025-03-17 07:11:40,037 INFO L226 Difference]: Without dead ends: 152 [2025-03-17 07:11:40,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 07:11:40,046 INFO L435 NwaCegarLoop]: 200 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, 200 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 [2025-03-17 07:11:40,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 200 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 07:11:40,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2025-03-17 07:11:40,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2025-03-17 07:11:40,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 96 states have (on average 1.2395833333333333) internal successors, (119), 97 states have internal predecessors, (119), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-17 07:11:40,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 198 transitions. [2025-03-17 07:11:40,093 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 198 transitions. Word has length 139 [2025-03-17 07:11:40,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:11:40,094 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 198 transitions. [2025-03-17 07:11:40,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-03-17 07:11:40,095 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 198 transitions. [2025-03-17 07:11:40,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-17 07:11:40,098 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:11:40,099 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:11:40,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 07:11:40,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 07:11:40,300 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:11:40,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:11:40,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1792617955, now seen corresponding path program 1 times [2025-03-17 07:11:40,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:11:40,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583895246] [2025-03-17 07:11:40,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:40,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:11:43,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 07:11:43,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 07:11:43,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:43,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:44,988 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-03-17 07:11:44,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:11:44,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583895246] [2025-03-17 07:11:44,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583895246] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 07:11:44,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665088133] [2025-03-17 07:11:44,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:11:44,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 07:11:44,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 07:11:44,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 07:11:44,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 07:11:49,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 07:11:49,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 07:11:49,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:11:49,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:11:49,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 4446 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 07:11:49,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 07:11:51,646 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 115 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-17 07:11:51,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 07:11:54,087 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2025-03-17 07:11:54,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665088133] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 07:11:54,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 07:11:54,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 12 [2025-03-17 07:11:54,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867793268] [2025-03-17 07:11:54,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 07:11:54,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 07:11:54,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:11:54,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 07:11:54,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-17 07:11:54,090 INFO L87 Difference]: Start difference. First operand 152 states and 198 transitions. Second operand has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 12 states have internal predecessors, (125), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) [2025-03-17 07:11:58,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:12:02,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:12:09,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:12:09,167 INFO L93 Difference]: Finished difference Result 304 states and 401 transitions. [2025-03-17 07:12:09,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 07:12:09,168 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 12 states have internal predecessors, (125), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) Word has length 139 [2025-03-17 07:12:09,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:12:09,171 INFO L225 Difference]: With dead ends: 304 [2025-03-17 07:12:09,171 INFO L226 Difference]: Without dead ends: 163 [2025-03-17 07:12:09,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2025-03-17 07:12:09,172 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 247 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 94 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2025-03-17 07:12:09,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1399 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 324 Invalid, 2 Unknown, 0 Unchecked, 14.0s Time] [2025-03-17 07:12:09,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2025-03-17 07:12:09,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 159. [2025-03-17 07:12:09,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 101 states have (on average 1.2277227722772277) internal successors, (124), 103 states have internal predecessors, (124), 40 states have call successors, (40), 15 states have call predecessors, (40), 17 states have return successors, (42), 40 states have call predecessors, (42), 39 states have call successors, (42) [2025-03-17 07:12:09,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 206 transitions. [2025-03-17 07:12:09,193 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 206 transitions. Word has length 139 [2025-03-17 07:12:09,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:12:09,193 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 206 transitions. [2025-03-17 07:12:09,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 12 states have internal predecessors, (125), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) [2025-03-17 07:12:09,193 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 206 transitions. [2025-03-17 07:12:09,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-03-17 07:12:09,196 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:12:09,196 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:12:09,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 07:12:09,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-17 07:12:09,397 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:12:09,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:12:09,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1652992901, now seen corresponding path program 1 times [2025-03-17 07:12:09,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:12:09,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718533112] [2025-03-17 07:12:09,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:09,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:12:12,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-03-17 07:12:13,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-03-17 07:12:13,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:13,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:12:16,833 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2025-03-17 07:12:16,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:12:16,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718533112] [2025-03-17 07:12:16,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718533112] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:12:16,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:12:16,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 07:12:16,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752763753] [2025-03-17 07:12:16,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:12:16,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 07:12:16,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:12:16,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 07:12:16,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-17 07:12:16,835 INFO L87 Difference]: Start difference. First operand 159 states and 206 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-17 07:12:20,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:12:25,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:12:29,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:12:29,155 INFO L93 Difference]: Finished difference Result 304 states and 396 transitions. [2025-03-17 07:12:29,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 07:12:29,156 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 150 [2025-03-17 07:12:29,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:12:29,158 INFO L225 Difference]: With dead ends: 304 [2025-03-17 07:12:29,158 INFO L226 Difference]: Without dead ends: 167 [2025-03-17 07:12:29,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-03-17 07:12:29,159 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 26 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2025-03-17 07:12:29,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 1155 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2025-03-17 07:12:29,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2025-03-17 07:12:29,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2025-03-17 07:12:29,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 105 states have (on average 1.2285714285714286) internal successors, (129), 108 states have internal predecessors, (129), 40 states have call successors, (40), 15 states have call predecessors, (40), 18 states have return successors, (43), 40 states have call predecessors, (43), 39 states have call successors, (43) [2025-03-17 07:12:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 212 transitions. [2025-03-17 07:12:29,175 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 212 transitions. Word has length 150 [2025-03-17 07:12:29,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:12:29,176 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 212 transitions. [2025-03-17 07:12:29,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-17 07:12:29,176 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 212 transitions. [2025-03-17 07:12:29,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-03-17 07:12:29,177 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:12:29,177 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:12:29,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 07:12:29,177 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:12:29,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:12:29,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1473778140, now seen corresponding path program 1 times [2025-03-17 07:12:29,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:12:29,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818793450] [2025-03-17 07:12:29,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:29,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:12:32,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-03-17 07:12:32,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-03-17 07:12:32,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:32,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:12:33,850 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2025-03-17 07:12:33,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:12:33,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818793450] [2025-03-17 07:12:33,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818793450] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:12:33,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:12:33,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 07:12:33,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807578581] [2025-03-17 07:12:33,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:12:33,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 07:12:33,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:12:33,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 07:12:33,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:12:33,861 INFO L87 Difference]: Start difference. First operand 164 states and 212 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-03-17 07:12:34,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:12:34,390 INFO L93 Difference]: Finished difference Result 311 states and 403 transitions. [2025-03-17 07:12:34,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 07:12:34,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 150 [2025-03-17 07:12:34,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:12:34,395 INFO L225 Difference]: With dead ends: 311 [2025-03-17 07:12:34,396 INFO L226 Difference]: Without dead ends: 169 [2025-03-17 07:12:34,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 07:12:34,397 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 19 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 07:12:34,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 730 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 07:12:34,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2025-03-17 07:12:34,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 166. [2025-03-17 07:12:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 106 states have (on average 1.2264150943396226) internal successors, (130), 109 states have internal predecessors, (130), 41 states have call successors, (41), 15 states have call predecessors, (41), 18 states have return successors, (44), 41 states have call predecessors, (44), 40 states have call successors, (44) [2025-03-17 07:12:34,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 215 transitions. [2025-03-17 07:12:34,417 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 215 transitions. Word has length 150 [2025-03-17 07:12:34,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:12:34,418 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 215 transitions. [2025-03-17 07:12:34,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-03-17 07:12:34,419 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 215 transitions. [2025-03-17 07:12:34,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 07:12:34,421 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:12:34,421 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:12:34,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 07:12:34,421 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:12:34,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:12:34,422 INFO L85 PathProgramCache]: Analyzing trace with hash -846941945, now seen corresponding path program 1 times [2025-03-17 07:12:34,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:12:34,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000218904] [2025-03-17 07:12:34,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:34,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:12:38,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 07:12:38,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 07:12:38,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:38,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:12:40,729 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2025-03-17 07:12:40,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:12:40,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000218904] [2025-03-17 07:12:40,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000218904] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:12:40,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:12:40,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 07:12:40,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961727257] [2025-03-17 07:12:40,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:12:40,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 07:12:40,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:12:40,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 07:12:40,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 07:12:40,730 INFO L87 Difference]: Start difference. First operand 166 states and 215 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-17 07:12:41,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:12:41,689 INFO L93 Difference]: Finished difference Result 313 states and 414 transitions. [2025-03-17 07:12:41,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 07:12:41,690 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 156 [2025-03-17 07:12:41,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:12:41,691 INFO L225 Difference]: With dead ends: 313 [2025-03-17 07:12:41,691 INFO L226 Difference]: Without dead ends: 167 [2025-03-17 07:12:41,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 07:12:41,692 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 3 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-17 07:12:41,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1119 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-17 07:12:41,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2025-03-17 07:12:41,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 166. [2025-03-17 07:12:41,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 106 states have (on average 1.2169811320754718) internal successors, (129), 109 states have internal predecessors, (129), 41 states have call successors, (41), 15 states have call predecessors, (41), 18 states have return successors, (44), 41 states have call predecessors, (44), 40 states have call successors, (44) [2025-03-17 07:12:41,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 214 transitions. [2025-03-17 07:12:41,708 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 214 transitions. Word has length 156 [2025-03-17 07:12:41,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:12:41,708 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 214 transitions. [2025-03-17 07:12:41,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-17 07:12:41,709 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 214 transitions. [2025-03-17 07:12:41,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-17 07:12:41,710 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:12:41,710 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:12:41,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 07:12:41,710 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:12:41,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:12:41,710 INFO L85 PathProgramCache]: Analyzing trace with hash 852555939, now seen corresponding path program 1 times [2025-03-17 07:12:41,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:12:41,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249632057] [2025-03-17 07:12:41,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:41,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 07:12:45,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-17 07:12:45,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-17 07:12:45,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 07:12:45,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 07:12:46,601 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2025-03-17 07:12:46,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 07:12:46,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249632057] [2025-03-17 07:12:46,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249632057] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 07:12:46,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 07:12:46,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 07:12:46,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054778699] [2025-03-17 07:12:46,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 07:12:46,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 07:12:46,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 07:12:46,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 07:12:46,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 07:12:46,602 INFO L87 Difference]: Start difference. First operand 166 states and 214 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-17 07:12:50,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 07:12:53,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 07:12:53,257 INFO L93 Difference]: Finished difference Result 255 states and 332 transitions. [2025-03-17 07:12:53,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 07:12:53,258 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 163 [2025-03-17 07:12:53,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 07:12:53,260 INFO L225 Difference]: With dead ends: 255 [2025-03-17 07:12:53,260 INFO L226 Difference]: Without dead ends: 168 [2025-03-17 07:12:53,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 07:12:53,261 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 47 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2025-03-17 07:12:53,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 975 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 136 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2025-03-17 07:12:53,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2025-03-17 07:12:53,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2025-03-17 07:12:53,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 105 states have (on average 1.2095238095238094) internal successors, (127), 107 states have internal predecessors, (127), 41 states have call successors, (41), 15 states have call predecessors, (41), 17 states have return successors, (42), 41 states have call predecessors, (42), 40 states have call successors, (42) [2025-03-17 07:12:53,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 210 transitions. [2025-03-17 07:12:53,271 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 210 transitions. Word has length 163 [2025-03-17 07:12:53,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 07:12:53,271 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 210 transitions. [2025-03-17 07:12:53,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-17 07:12:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 210 transitions. [2025-03-17 07:12:53,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-17 07:12:53,273 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 07:12:53,273 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 07:12:53,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 07:12:53,273 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 07:12:53,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 07:12:53,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1625422723, now seen corresponding path program 1 times [2025-03-17 07:12:53,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 07:12:53,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830477072] [2025-03-17 07:12:53,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 07:12:53,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms