./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 798a7b37 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-?-798a7b3-m [2025-03-04 03:03:10,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 03:03:11,000 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 03:03:11,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 03:03:11,008 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 03:03:11,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 03:03:11,031 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 03:03:11,031 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 03:03:11,032 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 03:03:11,032 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 03:03:11,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 03:03:11,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 03:03:11,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 03:03:11,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 03:03:11,033 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 03:03:11,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 03:03:11,033 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 03:03:11,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 03:03:11,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 03:03:11,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 03:03:11,033 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 03:03:11,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 03:03:11,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 03:03:11,034 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 03:03:11,034 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 03:03:11,034 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 03:03:11,034 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 03:03:11,034 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 03:03:11,034 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 03:03:11,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:03:11,034 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 03:03:11,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 03:03:11,035 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 03:03:11,035 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 03:03:11,035 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 03:03:11,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 03:03:11,035 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 03:03:11,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 03:03:11,035 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 03:03:11,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 03:03:11,036 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 [2025-03-04 03:03:11,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 03:03:11,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 03:03:11,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 03:03:11,252 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 03:03:11,252 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 03:03:11,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2025-03-04 03:03:12,387 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d6d5087/431a47819c154c36bd105d13e36b82ba/FLAG4c08b6739 [2025-03-04 03:03:12,881 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 03:03:12,882 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2025-03-04 03:03:12,915 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d6d5087/431a47819c154c36bd105d13e36b82ba/FLAG4c08b6739 [2025-03-04 03:03:12,989 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d6d5087/431a47819c154c36bd105d13e36b82ba [2025-03-04 03:03:12,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 03:03:12,992 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 03:03:12,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 03:03:12,993 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 03:03:12,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 03:03:12,997 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:03:12" (1/1) ... [2025-03-04 03:03:12,997 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f0ceb9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:12, skipping insertion in model container [2025-03-04 03:03:12,997 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:03:12" (1/1) ... [2025-03-04 03:03:13,057 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 03:03:13,218 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] [2025-03-04 03:03:13,225 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] [2025-03-04 03:03:13,641 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,642 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,642 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,643 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,643 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,651 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,653 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,653 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,654 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,656 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,656 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,964 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,966 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,975 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:13,986 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,052 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,053 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,054 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,054 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,055 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,055 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,055 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,056 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,056 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,056 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,056 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,061 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,062 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,064 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,065 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,069 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,069 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,070 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:03:14,119 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 03:03:14,132 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] [2025-03-04 03:03:14,132 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] [2025-03-04 03:03:14,182 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,184 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,185 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,194 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,195 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,196 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,196 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,197 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,197 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,197 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,198 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,270 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,271 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,272 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,275 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2025-03-04 03:03:14,334 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,335 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,335 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,335 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,335 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,336 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,337 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,337 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,337 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,338 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,338 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,338 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,338 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,338 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,339 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,339 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,339 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,340 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,341 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,343 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,343 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,343 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 03:03:14,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 03:03:14,482 INFO L204 MainTranslator]: Completed translation [2025-03-04 03:03:14,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14 WrapperNode [2025-03-04 03:03:14,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 03:03:14,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 03:03:14,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 03:03:14,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 03:03:14,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14" (1/1) ... [2025-03-04 03:03:14,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14" (1/1) ... [2025-03-04 03:03:14,611 INFO L138 Inliner]: procedures = 686, calls = 1900, calls flagged for inlining = 59, calls inlined = 14, statements flattened = 845 [2025-03-04 03:03:14,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 03:03:14,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 03:03:14,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 03:03:14,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 03:03:14,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14" (1/1) ... [2025-03-04 03:03:14,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14" (1/1) ... [2025-03-04 03:03:14,627 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14" (1/1) ... [2025-03-04 03:03:14,694 INFO L175 MemorySlicer]: Split 342 memory accesses to 6 slices as follows [238, 2, 3, 15, 66, 18]. 70 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [6, 2, 1, 4, 0, 5]. The 259 writes are split as follows [232, 0, 1, 3, 17, 6]. [2025-03-04 03:03:14,695 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14" (1/1) ... [2025-03-04 03:03:14,695 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14" (1/1) ... [2025-03-04 03:03:14,718 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14" (1/1) ... [2025-03-04 03:03:14,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14" (1/1) ... [2025-03-04 03:03:14,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14" (1/1) ... [2025-03-04 03:03:14,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14" (1/1) ... [2025-03-04 03:03:14,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 03:03:14,736 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 03:03:14,736 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 03:03:14,736 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 03:03:14,737 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14" (1/1) ... [2025-03-04 03:03:14,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 03:03:14,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:03:14,771 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) [2025-03-04 03:03:14,774 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 [2025-03-04 03:03:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2025-03-04 03:03:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2025-03-04 03:03:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2025-03-04 03:03:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2025-03-04 03:03:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 03:03:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-04 03:03:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-04 03:03:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 03:03:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 03:03:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 03:03:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 03:03:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 03:03:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-04 03:03:14,800 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-04 03:03:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 03:03:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 03:03:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-04 03:03:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 03:03:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-04 03:03:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2025-03-04 03:03:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-04 03:03:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 03:03:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-04 03:03:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_down [2025-03-04 03:03:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_down [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2025-03-04 03:03:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 03:03:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 03:03:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 03:03:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 03:03:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 03:03:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 03:03:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-04 03:03:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-04 03:03:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2025-03-04 03:03:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2025-03-04 03:03:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-03-04 03:03:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-03-04 03:03:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 03:03:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 03:03:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 03:03:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 03:03:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 03:03:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 03:03:15,087 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 03:03:15,089 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 03:03:15,120 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935: havoc #t~malloc583.base, #t~malloc583.offset; [2025-03-04 03:03:15,123 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-04 03:03:15,151 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-04 03:03:15,216 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1; [2025-03-04 03:03:15,231 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: havoc #t~ret587;havoc #t~ite589.base, #t~ite589.offset;havoc #t~ret588.base, #t~ret588.offset; [2025-03-04 03:03:15,398 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L8277: havoc aws_priority_queue_backpointers_valid_#t~ret875#1;havoc aws_priority_queue_backpointers_valid_#t~short876#1; [2025-03-04 03:03:15,486 INFO L1325 $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; [2025-03-04 03:03:15,493 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 03:03:15,511 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L8191: havoc ~node~1.base, ~node~1.offset; [2025-03-04 03:03:15,533 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L262: havoc nondet_int_#t~nondet5#1; [2025-03-04 03:03:15,534 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7268: havoc nondet_compare_#t~ret668#1; [2025-03-04 03:03:15,553 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3203: havoc #t~ret243; [2025-03-04 03:03:15,560 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7397: havoc #t~ret682.base, #t~ret682.offset; [2025-03-04 03:03:21,464 INFO L? ?]: Removed 203 outVars from TransFormulas that were not future-live. [2025-03-04 03:03:21,464 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 03:03:21,479 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 03:03:21,480 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 03:03:21,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:03:21 BoogieIcfgContainer [2025-03-04 03:03:21,480 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 03:03:21,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 03:03:21,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 03:03:21,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 03:03:21,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:03:12" (1/3) ... [2025-03-04 03:03:21,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1436c4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:03:21, skipping insertion in model container [2025-03-04 03:03:21,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:03:14" (2/3) ... [2025-03-04 03:03:21,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1436c4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:03:21, skipping insertion in model container [2025-03-04 03:03:21,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:03:21" (3/3) ... [2025-03-04 03:03:21,490 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_down_harness.i [2025-03-04 03:03:21,501 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 03:03:21,503 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. [2025-03-04 03:03:21,566 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 03:03:21,577 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;@4442eaa9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 03:03:21,578 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 03:03:21,583 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) [2025-03-04 03:03:21,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-04 03:03:21,598 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:03:21,599 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] [2025-03-04 03:03:21,600 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:03:21,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:03:21,605 INFO L85 PathProgramCache]: Analyzing trace with hash 129674716, now seen corresponding path program 1 times [2025-03-04 03:03:21,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:03:21,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136086033] [2025-03-04 03:03:21,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:21,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:03:25,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-04 03:03:26,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 03:03:26,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:26,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:26,806 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2025-03-04 03:03:26,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:03:26,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136086033] [2025-03-04 03:03:26,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136086033] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:03:26,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175048588] [2025-03-04 03:03:26,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:26,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:03:26,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:03:26,812 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) [2025-03-04 03:03:26,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 03:03:30,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-04 03:03:31,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 03:03:31,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:31,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:31,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 4488 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 03:03:31,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:03:31,389 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2025-03-04 03:03:31,389 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:03:31,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175048588] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:03:31,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:03:31,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 03:03:31,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415005032] [2025-03-04 03:03:31,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:03:31,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 03:03:31,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:03:31,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 03:03:31,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 03:03:31,411 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) [2025-03-04 03:03:31,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:03:31,460 INFO L93 Difference]: Finished difference Result 621 states and 920 transitions. [2025-03-04 03:03:31,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 03:03:31,462 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 [2025-03-04 03:03:31,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:03:31,468 INFO L225 Difference]: With dead ends: 621 [2025-03-04 03:03:31,468 INFO L226 Difference]: Without dead ends: 317 [2025-03-04 03:03:31,473 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 [2025-03-04 03:03:31,475 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 [2025-03-04 03:03:31,476 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] [2025-03-04 03:03:31,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2025-03-04 03:03:31,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2025-03-04 03:03:31,518 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) [2025-03-04 03:03:31,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 435 transitions. [2025-03-04 03:03:31,528 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 435 transitions. Word has length 156 [2025-03-04 03:03:31,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:03:31,530 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 435 transitions. [2025-03-04 03:03:31,530 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) [2025-03-04 03:03:31,531 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 435 transitions. [2025-03-04 03:03:31,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-04 03:03:31,535 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:03:31,535 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] [2025-03-04 03:03:31,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 03:03:31,736 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 [2025-03-04 03:03:31,736 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:03:31,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:03:31,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1264192513, now seen corresponding path program 1 times [2025-03-04 03:03:31,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:03:31,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665834585] [2025-03-04 03:03:31,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:31,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:03:35,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-04 03:03:35,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 03:03:35,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:35,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:36,001 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2025-03-04 03:03:36,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:03:36,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665834585] [2025-03-04 03:03:36,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665834585] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:03:36,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119577869] [2025-03-04 03:03:36,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:36,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:03:36,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:03:36,006 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) [2025-03-04 03:03:36,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 03:03:40,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-04 03:03:40,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 03:03:40,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:40,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:40,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 4488 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 03:03:40,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:03:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2025-03-04 03:03:40,667 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:03:40,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119577869] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:03:40,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:03:40,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2025-03-04 03:03:40,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270119149] [2025-03-04 03:03:40,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:03:40,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 03:03:40,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:03:40,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 03:03:40,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 03:03:40,669 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) [2025-03-04 03:03:40,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:03:40,758 INFO L93 Difference]: Finished difference Result 610 states and 840 transitions. [2025-03-04 03:03:40,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 03:03:40,759 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 [2025-03-04 03:03:40,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:03:40,762 INFO L225 Difference]: With dead ends: 610 [2025-03-04 03:03:40,762 INFO L226 Difference]: Without dead ends: 318 [2025-03-04 03:03:40,764 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 [2025-03-04 03:03:40,764 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 [2025-03-04 03:03:40,764 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] [2025-03-04 03:03:40,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2025-03-04 03:03:40,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2025-03-04 03:03:40,780 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) [2025-03-04 03:03:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 436 transitions. [2025-03-04 03:03:40,784 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 436 transitions. Word has length 156 [2025-03-04 03:03:40,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:03:40,784 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 436 transitions. [2025-03-04 03:03:40,784 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) [2025-03-04 03:03:40,784 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 436 transitions. [2025-03-04 03:03:40,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-04 03:03:40,786 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:03:40,787 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] [2025-03-04 03:03:40,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 03:03:40,987 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 [2025-03-04 03:03:40,987 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:03:40,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:03:40,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1321417247, now seen corresponding path program 1 times [2025-03-04 03:03:40,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:03:40,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903730264] [2025-03-04 03:03:40,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:40,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:03:44,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-04 03:03:44,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 03:03:44,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:44,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:45,929 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2025-03-04 03:03:45,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:03:45,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903730264] [2025-03-04 03:03:45,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903730264] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:03:45,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923968851] [2025-03-04 03:03:45,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:45,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:03:45,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:03:45,932 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) [2025-03-04 03:03:45,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 03:03:49,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-04 03:03:50,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 03:03:50,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:50,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:50,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 4494 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 03:03:50,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:03:51,310 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2025-03-04 03:03:51,311 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:03:51,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923968851] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:03:51,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:03:51,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-04 03:03:51,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469620] [2025-03-04 03:03:51,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:03:51,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 03:03:51,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:03:51,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 03:03:51,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 03:03:51,312 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) [2025-03-04 03:03:53,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:03:53,397 INFO L93 Difference]: Finished difference Result 589 states and 813 transitions. [2025-03-04 03:03:53,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 03:03:53,398 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 [2025-03-04 03:03:53,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:03:53,401 INFO L225 Difference]: With dead ends: 589 [2025-03-04 03:03:53,401 INFO L226 Difference]: Without dead ends: 320 [2025-03-04 03:03:53,404 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 [2025-03-04 03:03:53,404 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 [2025-03-04 03:03:53,405 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] [2025-03-04 03:03:53,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2025-03-04 03:03:53,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2025-03-04 03:03:53,420 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) [2025-03-04 03:03:53,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 441 transitions. [2025-03-04 03:03:53,423 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 441 transitions. Word has length 156 [2025-03-04 03:03:53,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:03:53,423 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 441 transitions. [2025-03-04 03:03:53,423 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) [2025-03-04 03:03:53,423 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 441 transitions. [2025-03-04 03:03:53,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-04 03:03:53,425 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:03:53,425 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] [2025-03-04 03:03:53,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 03:03:53,627 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 [2025-03-04 03:03:53,627 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:03:53,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:03:53,628 INFO L85 PathProgramCache]: Analyzing trace with hash -387531701, now seen corresponding path program 1 times [2025-03-04 03:03:53,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:03:53,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906682791] [2025-03-04 03:03:53,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:53,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:03:57,035 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-04 03:03:57,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-04 03:03:57,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:03:57,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:03:58,427 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2025-03-04 03:03:58,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:03:58,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906682791] [2025-03-04 03:03:58,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906682791] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:03:58,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654004777] [2025-03-04 03:03:58,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:03:58,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:03:58,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:03:58,432 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) [2025-03-04 03:03:58,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 03:04:02,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-04 03:04:02,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-04 03:04:02,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:04:02,920 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:04:02,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 4544 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 03:04:02,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:04:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2025-03-04 03:04:04,570 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:04:04,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654004777] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:04:04,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:04:04,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-03-04 03:04:04,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006735848] [2025-03-04 03:04:04,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:04:04,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 03:04:04,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:04:04,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 03:04:04,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-04 03:04:04,573 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) [2025-03-04 03:04:09,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:04:09,093 INFO L93 Difference]: Finished difference Result 612 states and 860 transitions. [2025-03-04 03:04:09,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 03:04:09,094 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 [2025-03-04 03:04:09,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:04:09,097 INFO L225 Difference]: With dead ends: 612 [2025-03-04 03:04:09,098 INFO L226 Difference]: Without dead ends: 341 [2025-03-04 03:04:09,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2025-03-04 03:04:09,101 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 468 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s 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, 3.6s IncrementalHoareTripleChecker+Time [2025-03-04 03:04:09,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 2257 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-03-04 03:04:09,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2025-03-04 03:04:09,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 339. [2025-03-04 03:04:09,127 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) [2025-03-04 03:04:09,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 478 transitions. [2025-03-04 03:04:09,130 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 478 transitions. Word has length 164 [2025-03-04 03:04:09,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:04:09,130 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 478 transitions. [2025-03-04 03:04:09,131 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) [2025-03-04 03:04:09,131 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 478 transitions. [2025-03-04 03:04:09,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-03-04 03:04:09,133 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:04:09,133 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] [2025-03-04 03:04:09,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 03:04:09,334 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 [2025-03-04 03:04:09,334 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:04:09,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:04:09,334 INFO L85 PathProgramCache]: Analyzing trace with hash -167623860, now seen corresponding path program 1 times [2025-03-04 03:04:09,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:04:09,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788056502] [2025-03-04 03:04:09,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:04:09,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:04:12,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-04 03:04:12,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-04 03:04:12,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:04:12,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:04:14,017 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-04 03:04:14,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:04:14,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788056502] [2025-03-04 03:04:14,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788056502] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:04:14,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090860224] [2025-03-04 03:04:14,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:04:14,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:04:14,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:04:14,021 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) [2025-03-04 03:04:14,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 03:04:18,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-04 03:04:18,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-04 03:04:18,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:04:18,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:04:18,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 4671 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 03:04:18,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:04:19,877 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2025-03-04 03:04:19,877 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:04:19,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090860224] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:04:19,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:04:19,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2025-03-04 03:04:19,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195425585] [2025-03-04 03:04:19,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:04:19,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 03:04:19,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:04:19,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 03:04:19,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-04 03:04:19,879 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) [2025-03-04 03:04:22,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:04:22,825 INFO L93 Difference]: Finished difference Result 635 states and 904 transitions. [2025-03-04 03:04:22,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 03:04:22,826 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 [2025-03-04 03:04:22,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:04:22,830 INFO L225 Difference]: With dead ends: 635 [2025-03-04 03:04:22,830 INFO L226 Difference]: Without dead ends: 345 [2025-03-04 03:04:22,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2025-03-04 03:04:22,832 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 451 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2025-03-04 03:04:22,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1848 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-03-04 03:04:22,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2025-03-04 03:04:22,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 339. [2025-03-04 03:04:22,849 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) [2025-03-04 03:04:22,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 478 transitions. [2025-03-04 03:04:22,852 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 478 transitions. Word has length 179 [2025-03-04 03:04:22,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:04:22,853 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 478 transitions. [2025-03-04 03:04:22,853 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) [2025-03-04 03:04:22,853 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 478 transitions. [2025-03-04 03:04:22,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2025-03-04 03:04:22,855 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:04:22,855 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] [2025-03-04 03:04:22,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 03:04:23,056 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 [2025-03-04 03:04:23,056 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:04:23,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:04:23,056 INFO L85 PathProgramCache]: Analyzing trace with hash 550868211, now seen corresponding path program 1 times [2025-03-04 03:04:23,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:04:23,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840047196] [2025-03-04 03:04:23,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:04:23,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 03:04:26,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 195 statements into 1 equivalence classes. [2025-03-04 03:04:26,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 195 of 195 statements. [2025-03-04 03:04:26,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:04:26,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:04:27,928 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-03-04 03:04:27,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 03:04:27,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840047196] [2025-03-04 03:04:27,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840047196] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 03:04:27,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085289347] [2025-03-04 03:04:27,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 03:04:27,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:04:27,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 03:04:27,931 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) [2025-03-04 03:04:27,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 03:04:32,243 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 195 statements into 1 equivalence classes. [2025-03-04 03:04:32,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 195 of 195 statements. [2025-03-04 03:04:32,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 03:04:32,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 03:04:32,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 4738 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 03:04:32,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 03:04:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2025-03-04 03:04:34,779 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 03:04:34,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085289347] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 03:04:34,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 03:04:34,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2025-03-04 03:04:34,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404450980] [2025-03-04 03:04:34,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 03:04:34,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 03:04:34,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 03:04:34,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 03:04:34,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-03-04 03:04:34,780 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) [2025-03-04 03:04:40,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 03:04:40,838 INFO L93 Difference]: Finished difference Result 646 states and 918 transitions. [2025-03-04 03:04:40,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 03:04:40,839 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 195 [2025-03-04 03:04:40,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 03:04:40,842 INFO L225 Difference]: With dead ends: 646 [2025-03-04 03:04:40,842 INFO L226 Difference]: Without dead ends: 356 [2025-03-04 03:04:40,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2025-03-04 03:04:40,843 INFO L435 NwaCegarLoop]: 366 mSDtfsCounter, 507 mSDsluCounter, 2112 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2025-03-04 03:04:40,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 2478 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2025-03-04 03:04:40,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2025-03-04 03:04:40,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 339. [2025-03-04 03:04:40,858 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) [2025-03-04 03:04:40,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 478 transitions. [2025-03-04 03:04:40,860 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 478 transitions. Word has length 195 [2025-03-04 03:04:40,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 03:04:40,860 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 478 transitions. [2025-03-04 03:04:40,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2025-03-04 03:04:40,861 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 478 transitions. [2025-03-04 03:04:40,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-03-04 03:04:40,862 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 03:04:40,862 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-04 03:04:40,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 03:04:41,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 03:04:41,063 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 03:04:41,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 03:04:41,063 INFO L85 PathProgramCache]: Analyzing trace with hash -854830514, now seen corresponding path program 2 times [2025-03-04 03:04:41,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 03:04:41,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53173920] [2025-03-04 03:04:41,064 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 03:04:41,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms