./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_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_priority_queue_s_sift_down_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 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 18:14:42,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 18:14:42,584 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 18:14:42,593 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 18:14:42,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 18:14:42,616 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 18:14:42,617 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 18:14:42,617 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 18:14:42,617 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 18:14:42,618 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 18:14:42,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 18:14:42,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 18:14:42,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 18:14:42,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 18:14:42,619 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 18:14:42,620 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 18:14:42,620 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 18:14:42,620 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 18:14:42,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 18:14:42,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 18:14:42,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 18:14:42,620 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 18:14:42,620 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 18:14:42,620 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 18:14:42,620 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 18:14:42,620 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 18:14:42,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 18:14:42,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 18:14:42,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 18:14:42,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:14:42,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 18:14:42,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 18:14:42,621 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 18:14:42,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 18:14:42,621 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 18:14:42,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 18:14:42,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 18:14:42,622 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 18:14:42,622 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 18:14:42,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 18:14:42,622 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 -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 [2025-03-08 18:14:42,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 18:14:42,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 18:14:42,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 18:14:42,876 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 18:14:42,877 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 18:14:42,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2025-03-08 18:14:44,045 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d13bcd6c/3f455a231b9244b6a6a2e7f91e37cd00/FLAGbcd63bfd1 [2025-03-08 18:14:44,527 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 18:14:44,529 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2025-03-08 18:14:44,573 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d13bcd6c/3f455a231b9244b6a6a2e7f91e37cd00/FLAGbcd63bfd1 [2025-03-08 18:14:44,632 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d13bcd6c/3f455a231b9244b6a6a2e7f91e37cd00 [2025-03-08 18:14:44,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 18:14:44,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 18:14:44,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 18:14:44,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 18:14:44,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 18:14:44,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:14:44" (1/1) ... [2025-03-08 18:14:44,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28ab8232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:44, skipping insertion in model container [2025-03-08 18:14:44,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:14:44" (1/1) ... [2025-03-08 18:14:44,724 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 18:14:44,949 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_priority_queue_s_sift_down_harness.i[4504,4517] [2025-03-08 18:14:44,963 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_priority_queue_s_sift_down_harness.i[4564,4577] [2025-03-08 18:14:45,627 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:45,628 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:45,628 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:45,629 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:45,630 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:45,646 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:45,646 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:45,648 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:45,648 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:45,649 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:45,650 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:45,650 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:45,650 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,139 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,140 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,154 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,159 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,233 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,235 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,235 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,235 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,236 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,236 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,236 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,236 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,236 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,236 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,241 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,242 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,244 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,244 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,249 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,249 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,250 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:14:46,305 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 18:14:46,315 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_priority_queue_s_sift_down_harness.i[4504,4517] [2025-03-08 18:14:46,315 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_priority_queue_s_sift_down_harness.i[4564,4577] [2025-03-08 18:14:46,384 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,385 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,385 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,386 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,393 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,394 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,395 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,395 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,395 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,396 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,396 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,396 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,460 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,461 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,462 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,465 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2025-03-08 18:14:46,486 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,487 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,488 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,488 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,488 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,489 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,489 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,490 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,490 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,490 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,490 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,490 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,491 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,491 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,491 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,491 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,492 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,493 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,497 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,498 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,498 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 18:14:46,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 18:14:46,632 INFO L204 MainTranslator]: Completed translation [2025-03-08 18:14:46,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46 WrapperNode [2025-03-08 18:14:46,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 18:14:46,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 18:14:46,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 18:14:46,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 18:14:46,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46" (1/1) ... [2025-03-08 18:14:46,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46" (1/1) ... [2025-03-08 18:14:46,732 INFO L138 Inliner]: procedures = 686, calls = 1900, calls flagged for inlining = 59, calls inlined = 14, statements flattened = 845 [2025-03-08 18:14:46,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 18:14:46,733 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 18:14:46,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 18:14:46,733 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 18:14:46,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46" (1/1) ... [2025-03-08 18:14:46,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46" (1/1) ... [2025-03-08 18:14:46,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46" (1/1) ... [2025-03-08 18:14:46,815 INFO L175 MemorySlicer]: Split 342 memory accesses to 6 slices as follows [238, 3, 2, 15, 18, 66]. 70 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [6, 1, 2, 4, 5, 0]. The 259 writes are split as follows [232, 1, 0, 3, 6, 17]. [2025-03-08 18:14:46,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46" (1/1) ... [2025-03-08 18:14:46,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46" (1/1) ... [2025-03-08 18:14:46,843 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46" (1/1) ... [2025-03-08 18:14:46,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46" (1/1) ... [2025-03-08 18:14:46,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46" (1/1) ... [2025-03-08 18:14:46,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46" (1/1) ... [2025-03-08 18:14:46,891 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 18:14:46,892 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 18:14:46,892 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 18:14:46,892 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 18:14:46,896 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46" (1/1) ... [2025-03-08 18:14:46,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 18:14:46,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:14:46,928 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 18:14:46,933 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 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2025-03-08 18:14:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-03-08 18:14:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-08 18:14:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-08 18:14:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 18:14:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 18:14:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 18:14:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 18:14:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-08 18:14:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 18:14:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 18:14:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 18:14:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 18:14:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-08 18:14:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-03-08 18:14:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-08 18:14:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 18:14:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 18:14:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-08 18:14:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-08 18:14:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 18:14:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 18:14:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 18:14:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 18:14:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 18:14:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 18:14:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 18:14:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_down [2025-03-08 18:14:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_down [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2025-03-08 18:14:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 18:14:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 18:14:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-08 18:14:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2025-03-08 18:14:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-03-08 18:14:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 18:14:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 18:14:47,212 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 18:14:47,214 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 18:14:47,242 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc583.base, #t~malloc583.offset; [2025-03-08 18:14:47,244 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 18:14:47,267 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-08 18:14:47,314 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1; [2025-03-08 18:14:47,320 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: havoc #t~ret587;havoc #t~ite589.base, #t~ite589.offset;havoc #t~ret588.base, #t~ret588.offset; [2025-03-08 18:14:47,421 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8277: havoc aws_priority_queue_backpointers_valid_#t~ret875#1;havoc aws_priority_queue_backpointers_valid_#t~short876#1; [2025-03-08 18:14:47,474 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2944: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-03-08 18:14:47,476 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 18:14:47,485 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8191: havoc ~node~1.base, ~node~1.offset; [2025-03-08 18:14:47,501 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L262: havoc nondet_int_#t~nondet5#1; [2025-03-08 18:14:47,501 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7268: havoc nondet_compare_#t~ret668#1; [2025-03-08 18:14:47,514 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3203: havoc #t~ret243; [2025-03-08 18:14:47,519 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7397: havoc #t~ret682.base, #t~ret682.offset; [2025-03-08 18:14:53,364 INFO L? ?]: Removed 203 outVars from TransFormulas that were not future-live. [2025-03-08 18:14:53,364 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 18:14:53,374 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 18:14:53,374 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 18:14:53,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:14:53 BoogieIcfgContainer [2025-03-08 18:14:53,375 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 18:14:53,377 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 18:14:53,377 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 18:14:53,380 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 18:14:53,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:14:44" (1/3) ... [2025-03-08 18:14:53,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297d22a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:14:53, skipping insertion in model container [2025-03-08 18:14:53,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:14:46" (2/3) ... [2025-03-08 18:14:53,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297d22a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:14:53, skipping insertion in model container [2025-03-08 18:14:53,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:14:53" (3/3) ... [2025-03-08 18:14:53,382 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_down_harness.i [2025-03-08 18:14:53,391 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 18:14:53,392 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_priority_queue_s_sift_down_harness.i that has 24 procedures, 322 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2025-03-08 18:14:53,458 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 18:14:53,470 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;@4e6b30b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 18:14:53,470 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 18:14:53,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 322 states, 193 states have (on average 1.2227979274611398) internal successors, (236), 194 states have internal predecessors, (236), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2025-03-08 18:14:53,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-08 18:14:53,486 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:14:53,487 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:14:53,487 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:14:53,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:14:53,492 INFO L85 PathProgramCache]: Analyzing trace with hash 129674716, now seen corresponding path program 1 times [2025-03-08 18:14:53,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:14:53,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59772234] [2025-03-08 18:14:53,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:14:53,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:14:57,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 18:14:58,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 18:14:58,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:14:58,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:14:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2025-03-08 18:14:58,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:14:58,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59772234] [2025-03-08 18:14:58,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59772234] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:14:58,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849730217] [2025-03-08 18:14:58,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:14:58,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:14:58,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:14:58,641 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 18:14:58,643 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 18:15:02,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 18:15:03,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 18:15:03,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:15:03,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:15:03,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 4488 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 18:15:03,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:15:03,304 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2025-03-08 18:15:03,304 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:15:03,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849730217] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:15:03,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:15:03,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 18:15:03,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790037689] [2025-03-08 18:15:03,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:15:03,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 18:15:03,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:15:03,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 18:15:03,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 18:15:03,327 INFO L87 Difference]: Start difference. First operand has 322 states, 193 states have (on average 1.2227979274611398) internal successors, (236), 194 states have internal predecessors, (236), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-03-08 18:15:03,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:15:03,381 INFO L93 Difference]: Finished difference Result 621 states and 920 transitions. [2025-03-08 18:15:03,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 18:15:03,382 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 156 [2025-03-08 18:15:03,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:15:03,388 INFO L225 Difference]: With dead ends: 621 [2025-03-08 18:15:03,388 INFO L226 Difference]: Without dead ends: 317 [2025-03-08 18:15:03,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 157 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 18:15:03,394 INFO L435 NwaCegarLoop]: 440 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 18:15:03,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 18:15:03,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2025-03-08 18:15:03,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2025-03-08 18:15:03,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 189 states have (on average 1.2063492063492063) internal successors, (228), 190 states have internal predecessors, (228), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2025-03-08 18:15:03,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 435 transitions. [2025-03-08 18:15:03,456 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 435 transitions. Word has length 156 [2025-03-08 18:15:03,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:15:03,457 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 435 transitions. [2025-03-08 18:15:03,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-03-08 18:15:03,457 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 435 transitions. [2025-03-08 18:15:03,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-08 18:15:03,464 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:15:03,464 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:15:03,480 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 18:15:03,665 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 18:15:03,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:15:03,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:15:03,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1264192513, now seen corresponding path program 1 times [2025-03-08 18:15:03,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:15:03,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066607286] [2025-03-08 18:15:03,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:15:03,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:15:07,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 18:15:07,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 18:15:07,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:15:07,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:15:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2025-03-08 18:15:08,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:15:08,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066607286] [2025-03-08 18:15:08,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066607286] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:15:08,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399412518] [2025-03-08 18:15:08,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:15:08,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:15:08,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:15:08,082 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 18:15:08,084 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 18:15:12,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 18:15:12,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 18:15:12,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:15:12,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:15:12,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 4488 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 18:15:12,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:15:12,912 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2025-03-08 18:15:12,913 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:15:12,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399412518] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:15:12,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:15:12,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2025-03-08 18:15:12,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282340924] [2025-03-08 18:15:12,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:15:12,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 18:15:12,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:15:12,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 18:15:12,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:15:12,915 INFO L87 Difference]: Start difference. First operand 317 states and 435 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-03-08 18:15:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:15:13,007 INFO L93 Difference]: Finished difference Result 610 states and 840 transitions. [2025-03-08 18:15:13,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 18:15:13,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 156 [2025-03-08 18:15:13,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:15:13,012 INFO L225 Difference]: With dead ends: 610 [2025-03-08 18:15:13,015 INFO L226 Difference]: Without dead ends: 318 [2025-03-08 18:15:13,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 18:15:13,017 INFO L435 NwaCegarLoop]: 434 mSDtfsCounter, 0 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 18:15:13,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 864 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 18:15:13,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2025-03-08 18:15:13,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2025-03-08 18:15:13,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 190 states have (on average 1.2052631578947368) internal successors, (229), 191 states have internal predecessors, (229), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2025-03-08 18:15:13,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 436 transitions. [2025-03-08 18:15:13,042 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 436 transitions. Word has length 156 [2025-03-08 18:15:13,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:15:13,043 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 436 transitions. [2025-03-08 18:15:13,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-03-08 18:15:13,043 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 436 transitions. [2025-03-08 18:15:13,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-08 18:15:13,045 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:15:13,045 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:15:13,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 18:15:13,246 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 [2025-03-08 18:15:13,246 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:15:13,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:15:13,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1321417247, now seen corresponding path program 1 times [2025-03-08 18:15:13,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:15:13,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706915681] [2025-03-08 18:15:13,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:15:13,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:15:17,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 18:15:17,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 18:15:17,379 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:15:17,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:15:18,350 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2025-03-08 18:15:18,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:15:18,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706915681] [2025-03-08 18:15:18,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706915681] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:15:18,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254998607] [2025-03-08 18:15:18,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:15:18,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:15:18,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:15:18,353 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:15:18,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 18:15:22,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-08 18:15:22,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-08 18:15:22,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:15:22,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:15:22,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 4494 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 18:15:22,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:15:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2025-03-08 18:15:23,929 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:15:23,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254998607] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:15:23,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:15:23,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-08 18:15:23,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406706074] [2025-03-08 18:15:23,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:15:23,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 18:15:23,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:15:23,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 18:15:23,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 18:15:23,931 INFO L87 Difference]: Start difference. First operand 318 states and 436 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2025-03-08 18:15:25,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:15:25,987 INFO L93 Difference]: Finished difference Result 589 states and 813 transitions. [2025-03-08 18:15:25,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 18:15:25,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 156 [2025-03-08 18:15:25,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:15:25,992 INFO L225 Difference]: With dead ends: 589 [2025-03-08 18:15:25,992 INFO L226 Difference]: Without dead ends: 320 [2025-03-08 18:15:25,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-08 18:15:25,993 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 435 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-08 18:15:25,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1521 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-08 18:15:25,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2025-03-08 18:15:26,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2025-03-08 18:15:26,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 191 states have (on average 1.2041884816753927) internal successors, (230), 193 states have internal predecessors, (230), 104 states have call successors, (104), 23 states have call predecessors, (104), 24 states have return successors, (107), 103 states have call predecessors, (107), 103 states have call successors, (107) [2025-03-08 18:15:26,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 441 transitions. [2025-03-08 18:15:26,020 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 441 transitions. Word has length 156 [2025-03-08 18:15:26,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:15:26,021 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 441 transitions. [2025-03-08 18:15:26,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2025-03-08 18:15:26,021 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 441 transitions. [2025-03-08 18:15:26,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-08 18:15:26,023 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:15:26,023 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 3, 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] [2025-03-08 18:15:26,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 18:15:26,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:15:26,223 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:15:26,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:15:26,224 INFO L85 PathProgramCache]: Analyzing trace with hash -387531701, now seen corresponding path program 1 times [2025-03-08 18:15:26,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:15:26,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780654720] [2025-03-08 18:15:26,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:15:26,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:15:29,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 18:15:29,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 18:15:29,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:15:29,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:15:31,304 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2025-03-08 18:15:31,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:15:31,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780654720] [2025-03-08 18:15:31,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780654720] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:15:31,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040075890] [2025-03-08 18:15:31,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:15:31,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:15:31,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:15:31,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:15:31,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 18:15:35,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 18:15:36,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 18:15:36,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:15:36,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:15:36,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 4544 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 18:15:36,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:15:37,881 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2025-03-08 18:15:37,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:15:37,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040075890] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:15:37,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:15:37,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-03-08 18:15:37,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853470870] [2025-03-08 18:15:37,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:15:37,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 18:15:37,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:15:37,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 18:15:37,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-08 18:15:37,884 INFO L87 Difference]: Start difference. First operand 320 states and 441 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2025-03-08 18:15:42,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:15:42,852 INFO L93 Difference]: Finished difference Result 612 states and 860 transitions. [2025-03-08 18:15:42,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 18:15:42,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 164 [2025-03-08 18:15:42,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:15:42,855 INFO L225 Difference]: With dead ends: 612 [2025-03-08 18:15:42,855 INFO L226 Difference]: Without dead ends: 341 [2025-03-08 18:15:42,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2025-03-08 18:15:42,858 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 468 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 2257 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2025-03-08 18:15:42,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 2257 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2025-03-08 18:15:42,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2025-03-08 18:15:42,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2025-03-08 18:15:42,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 207 states have (on average 1.2173913043478262) internal successors, (252), 209 states have internal predecessors, (252), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2025-03-08 18:15:42,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 478 transitions. [2025-03-08 18:15:42,879 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 478 transitions. Word has length 164 [2025-03-08 18:15:42,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:15:42,879 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 478 transitions. [2025-03-08 18:15:42,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2025-03-08 18:15:42,879 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 478 transitions. [2025-03-08 18:15:42,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-03-08 18:15:42,881 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:15:42,881 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 18:15:42,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-08 18:15:43,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:15:43,082 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:15:43,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:15:43,082 INFO L85 PathProgramCache]: Analyzing trace with hash -167623860, now seen corresponding path program 1 times [2025-03-08 18:15:43,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:15:43,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791224673] [2025-03-08 18:15:43,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:15:43,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:15:46,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-08 18:15:47,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-08 18:15:47,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:15:47,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:15:48,303 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 18:15:48,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:15:48,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791224673] [2025-03-08 18:15:48,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791224673] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:15:48,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767752427] [2025-03-08 18:15:48,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:15:48,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:15:48,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:15:48,307 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:15:48,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 18:15:52,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-08 18:15:53,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-08 18:15:53,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:15:53,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:15:53,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 4671 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 18:15:53,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:15:54,648 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2025-03-08 18:15:54,649 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:15:54,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767752427] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:15:54,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:15:54,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2025-03-08 18:15:54,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797738206] [2025-03-08 18:15:54,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:15:54,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 18:15:54,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:15:54,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 18:15:54,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-08 18:15:54,650 INFO L87 Difference]: Start difference. First operand 339 states and 478 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-03-08 18:15:58,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 18:15:58,102 INFO L93 Difference]: Finished difference Result 635 states and 904 transitions. [2025-03-08 18:15:58,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 18:15:58,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 179 [2025-03-08 18:15:58,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 18:15:58,109 INFO L225 Difference]: With dead ends: 635 [2025-03-08 18:15:58,110 INFO L226 Difference]: Without dead ends: 345 [2025-03-08 18:15:58,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2025-03-08 18:15:58,112 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 451 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-03-08 18:15:58,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1848 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-03-08 18:15:58,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2025-03-08 18:15:58,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 339. [2025-03-08 18:15:58,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 207 states have (on average 1.2173913043478262) internal successors, (252), 209 states have internal predecessors, (252), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2025-03-08 18:15:58,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 478 transitions. [2025-03-08 18:15:58,127 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 478 transitions. Word has length 179 [2025-03-08 18:15:58,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 18:15:58,127 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 478 transitions. [2025-03-08 18:15:58,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2025-03-08 18:15:58,128 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 478 transitions. [2025-03-08 18:15:58,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2025-03-08 18:15:58,130 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 18:15:58,130 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 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, 1, 1, 1, 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 18:15:58,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-08 18:15:58,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:15:58,331 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 18:15:58,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 18:15:58,331 INFO L85 PathProgramCache]: Analyzing trace with hash 550868211, now seen corresponding path program 1 times [2025-03-08 18:15:58,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 18:15:58,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338388234] [2025-03-08 18:15:58,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:15:58,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 18:16:02,246 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 195 statements into 1 equivalence classes. [2025-03-08 18:16:02,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 195 of 195 statements. [2025-03-08 18:16:02,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:16:02,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:16:03,866 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-03-08 18:16:03,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 18:16:03,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338388234] [2025-03-08 18:16:03,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338388234] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 18:16:03,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070823797] [2025-03-08 18:16:03,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 18:16:03,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 18:16:03,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 18:16:03,869 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 18:16:03,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 18:16:08,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 195 statements into 1 equivalence classes. [2025-03-08 18:16:08,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 195 of 195 statements. [2025-03-08 18:16:08,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 18:16:08,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 18:16:08,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 4738 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-08 18:16:08,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 18:16:11,209 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2025-03-08 18:16:11,209 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 18:16:11,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070823797] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 18:16:11,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 18:16:11,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2025-03-08 18:16:11,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198840999] [2025-03-08 18:16:11,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 18:16:11,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 18:16:11,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 18:16:11,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 18:16:11,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-03-08 18:16:11,211 INFO L87 Difference]: Start difference. First operand 339 states and 478 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28)