./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed 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_delete_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 5090677d6d260db259697db079256cfe609dc5bc5a9b3d2a9bbc85c8942fae90 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:03:43,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:03:44,031 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:03:44,038 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:03:44,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:03:44,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:03:44,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:03:44,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:03:44,064 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:03:44,064 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:03:44,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:03:44,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:03:44,066 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:03:44,066 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:03:44,066 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:03:44,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:03:44,066 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:03:44,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:03:44,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:03:44,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:03:44,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:03:44,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:03:44,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:03:44,067 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:03:44,067 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:03:44,067 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:03:44,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:03:44,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:03:44,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:03:44,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:03:44,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:03:44,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:03:44,068 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:03:44,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:03:44,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:03:44,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:03:44,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:03:44,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:03:44,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:03:44,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:03:44,069 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 -> 5090677d6d260db259697db079256cfe609dc5bc5a9b3d2a9bbc85c8942fae90 [2025-03-08 18:03:44,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:03:44,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:03:44,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:03:44,307 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:03:44,307 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:03:44,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i [2025-03-08 18:03:45,486 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847f93fab/efa19e88a06143b288972094c8d5a16a/FLAGe9a990b3d [2025-03-08 18:03:46,009 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:03:46,010 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_iter_delete_harness.i [2025-03-08 18:03:46,054 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847f93fab/efa19e88a06143b288972094c8d5a16a/FLAGe9a990b3d [2025-03-08 18:03:46,073 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/847f93fab/efa19e88a06143b288972094c8d5a16a [2025-03-08 18:03:46,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:03:46,077 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:03:46,078 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:03:46,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:03:46,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:03:46,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:03:46" (1/1) ... [2025-03-08 18:03:46,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a33e1a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:46, skipping insertion in model container [2025-03-08 18:03:46,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:03:46" (1/1) ... [2025-03-08 18:03:46,167 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:03:46,399 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_delete_harness.i[4494,4507] [2025-03-08 18:03:46,406 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_delete_harness.i[4554,4567] [2025-03-08 18:03:47,406 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:47,407 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:47,407 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:47,407 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:47,408 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:47,422 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:47,422 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:47,423 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:47,424 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:47,425 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:47,425 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:47,426 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:47,426 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,286 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,287 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,306 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,307 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,312 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,313 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,327 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,329 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,360 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_delete_harness.i[227989,228002] [2025-03-08 18:03:48,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:03:48,384 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:03:48,394 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_delete_harness.i[4494,4507] [2025-03-08 18:03:48,398 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_delete_harness.i[4554,4567] [2025-03-08 18:03:48,435 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,435 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,435 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,436 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,436 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,443 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,444 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,444 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,444 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,445 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,445 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,445 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,446 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-03-08 18:03:48,607 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,607 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,615 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,617 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,617 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,623 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,623 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,624 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,624 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,624 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,625 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,625 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:03:48,640 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_delete_harness.i[227989,228002] [2025-03-08 18:03:48,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:03:48,778 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:03:48,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48 WrapperNode [2025-03-08 18:03:48,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:03:48,779 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:03:48,779 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:03:48,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:03:48,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48" (1/1) ... [2025-03-08 18:03:48,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48" (1/1) ... [2025-03-08 18:03:48,921 INFO L138 Inliner]: procedures = 763, calls = 2455, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 747 [2025-03-08 18:03:48,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:03:48,922 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:03:48,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:03:48,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:03:48,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48" (1/1) ... [2025-03-08 18:03:48,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48" (1/1) ... [2025-03-08 18:03:48,936 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48" (1/1) ... [2025-03-08 18:03:49,002 INFO L175 MemorySlicer]: Split 348 memory accesses to 9 slices as follows [2, 2, 13, 2, 40, 238, 45, 1, 5]. 68 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 0, 0, 9, 6, 0, 0, 5]. The 246 writes are split as follows [0, 1, 1, 1, 4, 232, 6, 1, 0]. [2025-03-08 18:03:49,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48" (1/1) ... [2025-03-08 18:03:49,003 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48" (1/1) ... [2025-03-08 18:03:49,033 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48" (1/1) ... [2025-03-08 18:03:49,037 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48" (1/1) ... [2025-03-08 18:03:49,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48" (1/1) ... [2025-03-08 18:03:49,050 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48" (1/1) ... [2025-03-08 18:03:49,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:03:49,060 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:03:49,060 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:03:49,060 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:03:49,065 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48" (1/1) ... [2025-03-08 18:03:49,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:03:49,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:03:49,091 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) [2025-03-08 18:03:49,097 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 [2025-03-08 18:03:49,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-08 18:03:49,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-08 18:03:49,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-08 18:03:49,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-08 18:03:49,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-08 18:03:49,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 18:03:49,113 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:03:49,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 18:03:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:03:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-08 18:03:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-08 18:03:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2025-03-08 18:03:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:03:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:03:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 18:03:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-03-08 18:03:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-08 18:03:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-08 18:03:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-08 18:03:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-03-08 18:03:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-03-08 18:03:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-03-08 18:03:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-03-08 18:03:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-03-08 18:03:49,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2025-03-08 18:03:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-08 18:03:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-08 18:03:49,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-08 18:03:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-03-08 18:03:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-03-08 18:03:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-03-08 18:03:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-03-08 18:03:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-03-08 18:03:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2025-03-08 18:03:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:03:49,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:03:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:03:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2025-03-08 18:03:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2025-03-08 18:03:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-08 18:03:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-08 18:03:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:03:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:03:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:03:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:03:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:03:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 18:03:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-08 18:03:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-08 18:03:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-03-08 18:03:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-08 18:03:49,117 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-08 18:03:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:03:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 18:03:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-08 18:03:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-08 18:03:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_entry [2025-03-08 18:03:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_entry [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:03:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_delete [2025-03-08 18:03:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_delete [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 18:03:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-08 18:03:49,119 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-08 18:03:49,391 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:03:49,393 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:03:49,424 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-08 18:03:49,442 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-08 18:03:49,443 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-08 18:03:49,617 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9142-1: assume false; [2025-03-08 18:03:49,618 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9142-1: assume !false; [2025-03-08 18:03:49,618 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9640-1: assume false; [2025-03-08 18:03:49,618 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L9640-1: assume !false; [2025-03-08 18:03:49,774 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-08 18:03:49,821 INFO L1307 $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; [2025-03-08 18:03:49,824 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 18:03:49,839 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-08 18:03:49,848 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-08 18:03:54,848 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6833: havoc aws_hash_table_has_an_empty_slot_#t~mem566#1.base, aws_hash_table_has_an_empty_slot_#t~mem566#1.offset;havoc aws_hash_table_has_an_empty_slot_#t~ret567#1; [2025-03-08 18:03:54,848 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6843: havoc hash_table_state_has_an_empty_slot_#t~mem571#1; [2025-03-08 18:03:54,949 INFO L? ?]: Removed 222 outVars from TransFormulas that were not future-live. [2025-03-08 18:03:54,949 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:03:54,973 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:03:54,977 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:03:54,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:03:54 BoogieIcfgContainer [2025-03-08 18:03:54,978 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:03:54,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:03:54,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:03:54,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:03:54,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:03:46" (1/3) ... [2025-03-08 18:03:54,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3af781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:03:54, skipping insertion in model container [2025-03-08 18:03:54,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:03:48" (2/3) ... [2025-03-08 18:03:54,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3af781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:03:54, skipping insertion in model container [2025-03-08 18:03:54,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:03:54" (3/3) ... [2025-03-08 18:03:54,988 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_delete_harness.i [2025-03-08 18:03:54,998 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:03:54,999 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_iter_delete_harness.i that has 28 procedures, 255 locations, 1 initial locations, 13 loop locations, and 1 error locations. [2025-03-08 18:03:55,041 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:03:55,049 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;@11f4be93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:03:55,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 18:03:55,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 150 states have (on average 1.28) internal successors, (192), 149 states have internal predecessors, (192), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2025-03-08 18:03:55,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-03-08 18:03:55,061 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:03:55,062 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:03:55,062 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:03:55,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:03:55,066 INFO L85 PathProgramCache]: Analyzing trace with hash -792968904, now seen corresponding path program 1 times [2025-03-08 18:03:55,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:03:55,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745945419] [2025-03-08 18:03:55,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:03:55,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:03:59,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-03-08 18:03:59,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-03-08 18:03:59,954 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:03:59,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2025-03-08 18:04:00,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:04:00,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745945419] [2025-03-08 18:04:00,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745945419] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:04:00,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587398748] [2025-03-08 18:04:00,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:04:00,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:04:00,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:04:00,426 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) [2025-03-08 18:04:00,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 18:04:04,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-03-08 18:04:05,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-03-08 18:04:05,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:04:05,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:05,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 4566 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 18:04:05,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:04:05,299 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2025-03-08 18:04:05,299 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:04:05,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587398748] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:04:05,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:04:05,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 18:04:05,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126110601] [2025-03-08 18:04:05,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:04:05,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 18:04:05,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:04:05,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 18:04:05,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:04:05,326 INFO L87 Difference]: Start difference. First operand has 223 states, 150 states have (on average 1.28) internal successors, (192), 149 states have internal predecessors, (192), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2025-03-08 18:04:05,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:04:05,385 INFO L93 Difference]: Finished difference Result 441 states and 634 transitions. [2025-03-08 18:04:05,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 18:04:05,387 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2025-03-08 18:04:05,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:04:05,392 INFO L225 Difference]: With dead ends: 441 [2025-03-08 18:04:05,393 INFO L226 Difference]: Without dead ends: 218 [2025-03-08 18:04:05,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:04:05,398 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 18:04:05,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 289 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 18:04:05,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2025-03-08 18:04:05,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2025-03-08 18:04:05,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 144 states have (on average 1.25) internal successors, (180), 145 states have internal predecessors, (180), 54 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-03-08 18:04:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 287 transitions. [2025-03-08 18:04:05,444 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 287 transitions. Word has length 203 [2025-03-08 18:04:05,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:04:05,445 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 287 transitions. [2025-03-08 18:04:05,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2025-03-08 18:04:05,445 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 287 transitions. [2025-03-08 18:04:05,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-03-08 18:04:05,450 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:04:05,450 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:04:05,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 18:04:05,651 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 [2025-03-08 18:04:05,651 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:04:05,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:04:05,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1617270059, now seen corresponding path program 1 times [2025-03-08 18:04:05,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:04:05,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478824827] [2025-03-08 18:04:05,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:04:05,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:04:09,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-03-08 18:04:09,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-03-08 18:04:09,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:04:09,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:10,551 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2025-03-08 18:04:10,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:04:10,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478824827] [2025-03-08 18:04:10,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478824827] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:04:10,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:04:10,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 18:04:10,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769554346] [2025-03-08 18:04:10,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:04:10,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 18:04:10,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:04:10,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 18:04:10,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:04:10,553 INFO L87 Difference]: Start difference. First operand 218 states and 287 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2025-03-08 18:04:10,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:04:10,856 INFO L93 Difference]: Finished difference Result 399 states and 529 transitions. [2025-03-08 18:04:10,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 18:04:10,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2025-03-08 18:04:10,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:04:10,860 INFO L225 Difference]: With dead ends: 399 [2025-03-08 18:04:10,860 INFO L226 Difference]: Without dead ends: 223 [2025-03-08 18:04:10,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:04:10,862 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 0 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 18:04:10,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1120 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 18:04:10,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2025-03-08 18:04:10,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2025-03-08 18:04:10,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 148 states have (on average 1.2432432432432432) internal successors, (184), 149 states have internal predecessors, (184), 54 states have call successors, (54), 19 states have call predecessors, (54), 20 states have return successors, (54), 54 states have call predecessors, (54), 53 states have call successors, (54) [2025-03-08 18:04:10,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 292 transitions. [2025-03-08 18:04:10,881 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 292 transitions. Word has length 203 [2025-03-08 18:04:10,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:04:10,882 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 292 transitions. [2025-03-08 18:04:10,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2025-03-08 18:04:10,883 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 292 transitions. [2025-03-08 18:04:10,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-03-08 18:04:10,885 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:04:10,885 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:04:10,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 18:04:10,885 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:04:10,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:04:10,886 INFO L85 PathProgramCache]: Analyzing trace with hash 662163998, now seen corresponding path program 1 times [2025-03-08 18:04:10,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:04:10,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403486381] [2025-03-08 18:04:10,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:04:10,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:04:14,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-08 18:04:15,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-08 18:04:15,079 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:04:15,079 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:19,258 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2025-03-08 18:04:19,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:04:19,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403486381] [2025-03-08 18:04:19,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403486381] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:04:19,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:04:19,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-08 18:04:19,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965273740] [2025-03-08 18:04:19,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:04:19,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 18:04:19,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:04:19,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 18:04:19,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-08 18:04:19,260 INFO L87 Difference]: Start difference. First operand 223 states and 292 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2025-03-08 18:04:21,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:04:21,730 INFO L93 Difference]: Finished difference Result 393 states and 522 transitions. [2025-03-08 18:04:21,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 18:04:21,731 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 209 [2025-03-08 18:04:21,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:04:21,734 INFO L225 Difference]: With dead ends: 393 [2025-03-08 18:04:21,734 INFO L226 Difference]: Without dead ends: 231 [2025-03-08 18:04:21,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-03-08 18:04:21,736 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 22 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-08 18:04:21,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 1795 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-08 18:04:21,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2025-03-08 18:04:21,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2025-03-08 18:04:21,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 152 states have (on average 1.243421052631579) internal successors, (189), 154 states have internal predecessors, (189), 54 states have call successors, (54), 19 states have call predecessors, (54), 21 states have return successors, (55), 54 states have call predecessors, (55), 53 states have call successors, (55) [2025-03-08 18:04:21,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 298 transitions. [2025-03-08 18:04:21,760 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 298 transitions. Word has length 209 [2025-03-08 18:04:21,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:04:21,764 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 298 transitions. [2025-03-08 18:04:21,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 9 states have internal predecessors, (78), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2025-03-08 18:04:21,764 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 298 transitions. [2025-03-08 18:04:21,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-03-08 18:04:21,766 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:04:21,766 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:04:21,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 18:04:21,766 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:04:21,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:04:21,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1755534403, now seen corresponding path program 1 times [2025-03-08 18:04:21,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:04:21,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004946463] [2025-03-08 18:04:21,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:04:21,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:04:25,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-08 18:04:25,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-08 18:04:25,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:04:25,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:26,971 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 695 trivial. 0 not checked. [2025-03-08 18:04:26,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:04:26,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004946463] [2025-03-08 18:04:26,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004946463] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:04:26,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 18:04:26,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 18:04:26,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271676077] [2025-03-08 18:04:26,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:04:26,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 18:04:26,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:04:26,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 18:04:26,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:04:26,974 INFO L87 Difference]: Start difference. First operand 228 states and 298 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2025-03-08 18:04:27,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:04:27,365 INFO L93 Difference]: Finished difference Result 400 states and 530 transitions. [2025-03-08 18:04:27,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 18:04:27,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 209 [2025-03-08 18:04:27,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:04:27,368 INFO L225 Difference]: With dead ends: 400 [2025-03-08 18:04:27,368 INFO L226 Difference]: Without dead ends: 233 [2025-03-08 18:04:27,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 18:04:27,370 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 21 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 18:04:27,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 796 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 18:04:27,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2025-03-08 18:04:27,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2025-03-08 18:04:27,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 153 states have (on average 1.2418300653594772) internal successors, (190), 155 states have internal predecessors, (190), 55 states have call successors, (55), 19 states have call predecessors, (55), 21 states have return successors, (56), 55 states have call predecessors, (56), 54 states have call successors, (56) [2025-03-08 18:04:27,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 301 transitions. [2025-03-08 18:04:27,390 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 301 transitions. Word has length 209 [2025-03-08 18:04:27,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:04:27,390 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 301 transitions. [2025-03-08 18:04:27,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2025-03-08 18:04:27,391 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 301 transitions. [2025-03-08 18:04:27,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2025-03-08 18:04:27,393 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:04:27,393 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:04:27,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 18:04:27,393 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:04:27,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:04:27,394 INFO L85 PathProgramCache]: Analyzing trace with hash -394577169, now seen corresponding path program 1 times [2025-03-08 18:04:27,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:04:27,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448156204] [2025-03-08 18:04:27,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:04:27,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:04:31,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-03-08 18:04:31,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-03-08 18:04:31,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:04:31,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:33,502 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2025-03-08 18:04:33,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:04:33,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448156204] [2025-03-08 18:04:33,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448156204] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:04:33,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813432099] [2025-03-08 18:04:33,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:04:33,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:04:33,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:04:33,506 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) [2025-03-08 18:04:33,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 18:04:38,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 215 statements into 1 equivalence classes. [2025-03-08 18:04:38,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 215 of 215 statements. [2025-03-08 18:04:38,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:04:38,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:04:38,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 4594 conjuncts, 53 conjuncts are in the unsatisfiable core [2025-03-08 18:04:38,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:04:39,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-08 18:04:45,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-08 18:04:45,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-08 18:04:53,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2025-03-08 18:04:53,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2025-03-08 18:04:53,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2025-03-08 18:04:55,543 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 547 proven. 4 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2025-03-08 18:04:55,543 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 18:04:58,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2025-03-08 18:04:59,729 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2025-03-08 18:04:59,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813432099] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 18:04:59,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 18:04:59,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 16, 14] total 22 [2025-03-08 18:04:59,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114537795] [2025-03-08 18:04:59,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 18:04:59,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-08 18:04:59,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:04:59,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-08 18:04:59,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2025-03-08 18:04:59,732 INFO L87 Difference]: Start difference. First operand 230 states and 301 transitions. Second operand has 22 states, 20 states have (on average 7.55) internal successors, (151), 19 states have internal predecessors, (151), 10 states have call successors, (86), 6 states have call predecessors, (86), 7 states have return successors, (81), 8 states have call predecessors, (81), 9 states have call successors, (81) [2025-03-08 18:05:04,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-08 18:05:13,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]