./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/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 a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/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 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 07:28:44,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 07:28:44,208 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-13 07:28:44,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 07:28:44,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 07:28:44,241 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 07:28:44,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 07:28:44,242 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 07:28:44,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 07:28:44,243 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 07:28:44,244 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 07:28:44,244 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 07:28:44,244 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 07:28:44,245 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 07:28:44,246 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 07:28:44,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 07:28:44,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 07:28:44,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 07:28:44,247 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 07:28:44,247 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 07:28:44,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 07:28:44,251 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 07:28:44,251 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 07:28:44,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 07:28:44,252 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 07:28:44,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 07:28:44,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 07:28:44,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 07:28:44,253 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 07:28:44,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:28:44,253 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 07:28:44,253 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 07:28:44,253 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 07:28:44,253 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 07:28:44,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 07:28:44,254 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 07:28:44,254 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 07:28:44,254 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 07:28:44,254 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 07:28:44,254 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 [2024-10-13 07:28:44,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 07:28:44,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 07:28:44,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 07:28:44,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 07:28:44,639 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 07:28:44,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2024-10-13 07:28:46,038 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 07:28:46,356 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 07:28:46,356 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2024-10-13 07:28:46,386 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46c75b81e/e6723a095a5b47f99421d99e76e4fb79/FLAG927ee1ad9 [2024-10-13 07:28:46,397 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46c75b81e/e6723a095a5b47f99421d99e76e4fb79 [2024-10-13 07:28:46,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 07:28:46,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 07:28:46,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 07:28:46,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 07:28:46,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 07:28:46,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:28:46" (1/1) ... [2024-10-13 07:28:46,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c0fc1a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:46, skipping insertion in model container [2024-10-13 07:28:46,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:28:46" (1/1) ... [2024-10-13 07:28:46,490 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 07:28:46,716 WARN L248 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] [2024-10-13 07:28:46,722 WARN L248 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] [2024-10-13 07:28:47,258 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,258 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,259 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,259 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,260 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,277 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,278 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,279 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,280 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,281 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,286 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,286 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,287 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,605 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,606 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,609 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,613 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,655 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,655 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,655 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,656 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,656 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,656 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,657 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,657 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,657 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,657 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,658 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,658 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,658 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,660 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,660 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,660 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,661 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,663 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,663 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,668 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,669 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,669 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:28:47,699 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 07:28:47,716 WARN L248 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] [2024-10-13 07:28:47,716 WARN L248 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] [2024-10-13 07:28:47,758 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,758 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,759 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,759 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,759 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,764 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,764 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,765 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,765 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,766 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,767 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,767 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,767 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,823 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,823 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,824 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,828 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2024-10-13 07:28:47,849 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,850 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,850 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,851 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,851 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,851 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,852 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,852 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,852 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,852 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,853 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,853 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,853 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,854 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,854 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,854 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,854 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,856 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,857 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,861 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,862 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,862 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-13 07:28:47,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:28:48,081 INFO L204 MainTranslator]: Completed translation [2024-10-13 07:28:48,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48 WrapperNode [2024-10-13 07:28:48,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 07:28:48,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 07:28:48,083 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 07:28:48,083 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 07:28:48,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48" (1/1) ... [2024-10-13 07:28:48,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48" (1/1) ... [2024-10-13 07:28:48,219 INFO L138 Inliner]: procedures = 686, calls = 1894, calls flagged for inlining = 59, calls inlined = 14, statements flattened = 846 [2024-10-13 07:28:48,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 07:28:48,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 07:28:48,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 07:28:48,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 07:28:48,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48" (1/1) ... [2024-10-13 07:28:48,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48" (1/1) ... [2024-10-13 07:28:48,257 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48" (1/1) ... [2024-10-13 07:28:48,373 INFO L175 MemorySlicer]: Split 338 memory accesses to 6 slices as follows [236, 2, 3, 64, 15, 18]. 70 percent of accesses are in the largest equivalence class. The 259 initializations are split as follows [236, 2, 1, 11, 4, 5]. The 14 writes are split as follows [0, 0, 1, 4, 3, 6]. [2024-10-13 07:28:48,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48" (1/1) ... [2024-10-13 07:28:48,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48" (1/1) ... [2024-10-13 07:28:48,415 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48" (1/1) ... [2024-10-13 07:28:48,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48" (1/1) ... [2024-10-13 07:28:48,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48" (1/1) ... [2024-10-13 07:28:48,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48" (1/1) ... [2024-10-13 07:28:48,463 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 07:28:48,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 07:28:48,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 07:28:48,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 07:28:48,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48" (1/1) ... [2024-10-13 07:28:48,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:28:48,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:28:48,500 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) [2024-10-13 07:28:48,505 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 [2024-10-13 07:28:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2024-10-13 07:28:48,540 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2024-10-13 07:28:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-10-13 07:28:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-10-13 07:28:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 07:28:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-10-13 07:28:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-10-13 07:28:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-13 07:28:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-13 07:28:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-13 07:28:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-13 07:28:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 07:28:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 07:28:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 07:28:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 07:28:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 07:28:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 07:28:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-13 07:28:48,544 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-13 07:28:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 07:28:48,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 07:28:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 07:28:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 07:28:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 07:28:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 07:28:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 07:28:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-13 07:28:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-13 07:28:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-13 07:28:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-10-13 07:28:48,545 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-10-13 07:28:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 07:28:48,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 07:28:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-13 07:28:48,546 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-13 07:28:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-13 07:28:48,546 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-13 07:28:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-13 07:28:48,546 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-13 07:28:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-10-13 07:28:48,546 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-10-13 07:28:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2024-10-13 07:28:48,546 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2024-10-13 07:28:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-10-13 07:28:48,546 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-10-13 07:28:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 07:28:48,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 07:28:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-10-13 07:28:48,546 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-10-13 07:28:48,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 07:28:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 07:28:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 07:28:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 07:28:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-13 07:28:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-13 07:28:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-13 07:28:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_down [2024-10-13 07:28:48,547 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_down [2024-10-13 07:28:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-13 07:28:48,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-13 07:28:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-13 07:28:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-13 07:28:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-13 07:28:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-13 07:28:48,548 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-10-13 07:28:48,549 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-10-13 07:28:48,549 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-13 07:28:48,549 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-13 07:28:48,549 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-13 07:28:48,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-13 07:28:48,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 07:28:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 07:28:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 07:28:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 07:28:48,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 07:28:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 07:28:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-10-13 07:28:48,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-10-13 07:28:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2024-10-13 07:28:48,551 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2024-10-13 07:28:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-10-13 07:28:48,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-10-13 07:28:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 07:28:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 07:28:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 07:28:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 07:28:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 07:28:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 07:28:48,881 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 07:28:48,883 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 07:28:49,621 INFO L? ?]: Removed 204 outVars from TransFormulas that were not future-live. [2024-10-13 07:28:49,621 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 07:28:49,704 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 07:28:49,704 INFO L314 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-13 07:28:49,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:28:49 BoogieIcfgContainer [2024-10-13 07:28:49,704 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 07:28:49,706 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 07:28:49,706 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 07:28:49,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 07:28:49,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:28:46" (1/3) ... [2024-10-13 07:28:49,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4077de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:28:49, skipping insertion in model container [2024-10-13 07:28:49,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:28:48" (2/3) ... [2024-10-13 07:28:49,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4077de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:28:49, skipping insertion in model container [2024-10-13 07:28:49,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:28:49" (3/3) ... [2024-10-13 07:28:49,711 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_down_harness.i [2024-10-13 07:28:49,724 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 07:28:49,724 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 07:28:49,771 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 07:28:49,777 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;@70e698b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 07:28:49,777 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 07:28:49,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 297 states, 168 states have (on average 1.2738095238095237) internal successors, (214), 169 states have internal predecessors, (214), 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) [2024-10-13 07:28:49,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-13 07:28:49,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:28:49,795 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 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] [2024-10-13 07:28:49,795 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:28:49,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:28:49,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1471517544, now seen corresponding path program 1 times [2024-10-13 07:28:49,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:28:49,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029089362] [2024-10-13 07:28:49,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:49,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:28:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:28:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:28:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:28:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:28:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:28:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:28:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:28:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:28:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:28:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:28:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:28:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:28:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:28:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 07:28:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 07:28:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 07:28:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 07:28:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 07:28:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 07:28:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 07:28:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:28:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:28:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:50,531 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-13 07:28:50,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:28:50,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029089362] [2024-10-13 07:28:50,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029089362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:28:50,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:28:50,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 07:28:50,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93910314] [2024-10-13 07:28:50,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:28:50,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 07:28:50,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:28:50,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 07:28:50,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 07:28:50,565 INFO L87 Difference]: Start difference. First operand has 297 states, 168 states have (on average 1.2738095238095237) internal successors, (214), 169 states have internal predecessors, (214), 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 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-13 07:28:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:28:52,330 INFO L93 Difference]: Finished difference Result 691 states and 1148 transitions. [2024-10-13 07:28:52,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:28:52,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 4 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 142 [2024-10-13 07:28:52,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:28:52,343 INFO L225 Difference]: With dead ends: 691 [2024-10-13 07:28:52,343 INFO L226 Difference]: Without dead ends: 412 [2024-10-13 07:28:52,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:28:52,354 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 238 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-13 07:28:52,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 329 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-13 07:28:52,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-10-13 07:28:52,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 295. [2024-10-13 07:28:52,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 167 states have (on average 1.2335329341317365) internal successors, (206), 168 states have internal predecessors, (206), 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) [2024-10-13 07:28:52,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 413 transitions. [2024-10-13 07:28:52,428 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 413 transitions. Word has length 142 [2024-10-13 07:28:52,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:28:52,429 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 413 transitions. [2024-10-13 07:28:52,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-13 07:28:52,429 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 413 transitions. [2024-10-13 07:28:52,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-13 07:28:52,433 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:28:52,433 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 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] [2024-10-13 07:28:52,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 07:28:52,433 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:28:52,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:28:52,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1387246874, now seen corresponding path program 1 times [2024-10-13 07:28:52,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:28:52,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175423036] [2024-10-13 07:28:52,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:52,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:28:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:28:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:28:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:28:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:28:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:28:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:28:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:28:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:28:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:28:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:28:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:28:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:52,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:28:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:53,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 07:28:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:53,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 07:28:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:53,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 07:28:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:53,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 07:28:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:53,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-13 07:28:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:53,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-13 07:28:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:53,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 07:28:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:53,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 07:28:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:53,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:28:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:53,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:28:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:53,176 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-10-13 07:28:53,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:28:53,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175423036] [2024-10-13 07:28:53,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175423036] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:53,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694671532] [2024-10-13 07:28:53,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:53,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:53,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:28:53,182 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) [2024-10-13 07:28:53,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 07:28:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:53,617 INFO L255 TraceCheckSpWp]: Trace formula consists of 2293 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 07:28:53,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:28:53,730 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-13 07:28:53,730 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:28:53,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694671532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:28:53,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:28:53,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-10-13 07:28:53,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408624194] [2024-10-13 07:28:53,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:28:53,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:28:53,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:28:53,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:28:53,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-13 07:28:53,733 INFO L87 Difference]: Start difference. First operand 295 states and 413 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2024-10-13 07:28:53,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:28:53,938 INFO L93 Difference]: Finished difference Result 549 states and 773 transitions. [2024-10-13 07:28:53,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:28:53,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 142 [2024-10-13 07:28:53,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:28:53,941 INFO L225 Difference]: With dead ends: 549 [2024-10-13 07:28:53,941 INFO L226 Difference]: Without dead ends: 297 [2024-10-13 07:28:53,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-13 07:28:53,945 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 22 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:28:53,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1425 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 07:28:53,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-10-13 07:28:54,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2024-10-13 07:28:54,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 170 states have internal predecessors, (207), 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) [2024-10-13 07:28:54,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 418 transitions. [2024-10-13 07:28:54,023 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 418 transitions. Word has length 142 [2024-10-13 07:28:54,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:28:54,023 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 418 transitions. [2024-10-13 07:28:54,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2024-10-13 07:28:54,024 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 418 transitions. [2024-10-13 07:28:54,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 07:28:54,025 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:28:54,026 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 3, 3, 3, 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] [2024-10-13 07:28:54,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 07:28:54,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:54,233 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:28:54,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:28:54,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1396222726, now seen corresponding path program 1 times [2024-10-13 07:28:54,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:28:54,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120563864] [2024-10-13 07:28:54,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:54,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:28:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:28:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:28:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:28:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:28:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:28:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:28:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:28:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:28:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:28:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:28:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:28:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:28:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:28:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-13 07:28:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-13 07:28:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-13 07:28:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 07:28:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-13 07:28:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-13 07:28:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 07:28:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-13 07:28:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-13 07:28:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-13 07:28:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:54,922 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-10-13 07:28:54,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:28:54,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120563864] [2024-10-13 07:28:54,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120563864] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:54,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249355148] [2024-10-13 07:28:54,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:54,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:54,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:28:54,926 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) [2024-10-13 07:28:54,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 07:28:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:55,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 2343 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 07:28:55,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:28:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-13 07:28:55,465 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:28:55,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249355148] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:28:55,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:28:55,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-10-13 07:28:55,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538498304] [2024-10-13 07:28:55,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:28:55,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 07:28:55,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:28:55,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 07:28:55,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-10-13 07:28:55,467 INFO L87 Difference]: Start difference. First operand 297 states and 418 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2024-10-13 07:28:55,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:28:55,807 INFO L93 Difference]: Finished difference Result 572 states and 820 transitions. [2024-10-13 07:28:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 07:28:55,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 150 [2024-10-13 07:28:55,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:28:55,811 INFO L225 Difference]: With dead ends: 572 [2024-10-13 07:28:55,811 INFO L226 Difference]: Without dead ends: 318 [2024-10-13 07:28:55,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-10-13 07:28:55,813 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 39 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 2167 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 07:28:55,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 2167 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 07:28:55,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-10-13 07:28:55,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 316. [2024-10-13 07:28:55,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 184 states have (on average 1.2445652173913044) internal successors, (229), 186 states have internal predecessors, (229), 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) [2024-10-13 07:28:55,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 455 transitions. [2024-10-13 07:28:55,836 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 455 transitions. Word has length 150 [2024-10-13 07:28:55,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:28:55,837 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 455 transitions. [2024-10-13 07:28:55,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2024-10-13 07:28:55,837 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 455 transitions. [2024-10-13 07:28:55,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-13 07:28:55,839 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:28:55,839 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 3, 3, 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] [2024-10-13 07:28:55,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 07:28:56,039 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,SelfDestructingSolverStorable2 [2024-10-13 07:28:56,040 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:28:56,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:28:56,041 INFO L85 PathProgramCache]: Analyzing trace with hash -964454930, now seen corresponding path program 1 times [2024-10-13 07:28:56,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:28:56,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576353664] [2024-10-13 07:28:56,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:56,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:28:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:28:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:28:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:28:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:28:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:28:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:28:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:28:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:28:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:28:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:28:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:28:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:28:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:28:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:28:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 07:28:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 07:28:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-13 07:28:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-13 07:28:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-13 07:28:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-13 07:28:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-13 07:28:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-13 07:28:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 07:28:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-13 07:28:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:56,849 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-10-13 07:28:56,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:28:56,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576353664] [2024-10-13 07:28:56,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576353664] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:56,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862321287] [2024-10-13 07:28:56,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:56,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:56,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:28:56,853 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) [2024-10-13 07:28:56,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 07:28:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:57,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 2478 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 07:28:57,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:28:57,328 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-13 07:28:57,328 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:28:57,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862321287] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:28:57,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:28:57,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-10-13 07:28:57,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343843378] [2024-10-13 07:28:57,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:28:57,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 07:28:57,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:28:57,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 07:28:57,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-13 07:28:57,330 INFO L87 Difference]: Start difference. First operand 316 states and 455 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2024-10-13 07:28:57,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:28:57,582 INFO L93 Difference]: Finished difference Result 595 states and 864 transitions. [2024-10-13 07:28:57,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 07:28:57,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 163 [2024-10-13 07:28:57,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:28:57,585 INFO L225 Difference]: With dead ends: 595 [2024-10-13 07:28:57,585 INFO L226 Difference]: Without dead ends: 322 [2024-10-13 07:28:57,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-13 07:28:57,587 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 39 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:28:57,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 1735 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 07:28:57,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-13 07:28:57,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 316. [2024-10-13 07:28:57,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 184 states have (on average 1.2445652173913044) internal successors, (229), 186 states have internal predecessors, (229), 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) [2024-10-13 07:28:57,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 455 transitions. [2024-10-13 07:28:57,603 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 455 transitions. Word has length 163 [2024-10-13 07:28:57,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:28:57,604 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 455 transitions. [2024-10-13 07:28:57,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2024-10-13 07:28:57,604 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 455 transitions. [2024-10-13 07:28:57,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-13 07:28:57,605 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:28:57,605 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 4, 4, 3, 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] [2024-10-13 07:28:57,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 07:28:57,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:57,807 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:28:57,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:28:57,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1580314595, now seen corresponding path program 1 times [2024-10-13 07:28:57,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:28:57,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447123413] [2024-10-13 07:28:57,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:57,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:28:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:28:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:28:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:28:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:28:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:28:58,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:28:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:28:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:28:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:28:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:28:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:28:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:28:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:28:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:28:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:28:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:28:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:28:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 07:28:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 07:28:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 07:28:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:28:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-13 07:28:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-13 07:28:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 07:28:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-13 07:28:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-13 07:28:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-13 07:28:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2024-10-13 07:28:58,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:28:58,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447123413] [2024-10-13 07:28:58,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447123413] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:28:58,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530785509] [2024-10-13 07:28:58,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:28:58,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:28:58,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:28:58,787 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) [2024-10-13 07:28:58,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 07:28:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:28:59,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 07:28:59,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:28:59,343 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-10-13 07:28:59,343 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:28:59,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530785509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:28:59,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:28:59,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-10-13 07:28:59,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167465230] [2024-10-13 07:28:59,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:28:59,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 07:28:59,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:28:59,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 07:28:59,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2024-10-13 07:28:59,345 INFO L87 Difference]: Start difference. First operand 316 states and 455 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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) [2024-10-13 07:28:59,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:28:59,780 INFO L93 Difference]: Finished difference Result 622 states and 903 transitions. [2024-10-13 07:28:59,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 07:28:59,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 179 [2024-10-13 07:28:59,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:28:59,784 INFO L225 Difference]: With dead ends: 622 [2024-10-13 07:28:59,784 INFO L226 Difference]: Without dead ends: 349 [2024-10-13 07:28:59,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2024-10-13 07:28:59,786 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 61 mSDsluCounter, 2012 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 07:28:59,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 2363 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 07:28:59,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-10-13 07:28:59,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 316. [2024-10-13 07:28:59,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 184 states have (on average 1.2445652173913044) internal successors, (229), 186 states have internal predecessors, (229), 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) [2024-10-13 07:28:59,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 455 transitions. [2024-10-13 07:28:59,807 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 455 transitions. Word has length 179 [2024-10-13 07:28:59,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:28:59,808 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 455 transitions. [2024-10-13 07:28:59,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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) [2024-10-13 07:28:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 455 transitions. [2024-10-13 07:28:59,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-10-13 07:28:59,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:28:59,811 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:28:59,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 07:29:00,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:29:00,012 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:29:00,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:29:00,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1545876551, now seen corresponding path program 2 times [2024-10-13 07:29:00,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:29:00,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850471890] [2024-10-13 07:29:00,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:00,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:29:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:29:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:29:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:29:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:29:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:29:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:29:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:29:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:29:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:29:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:29:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:29:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:29:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-13 07:29:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:29:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-13 07:29:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 07:29:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-13 07:29:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-13 07:29:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-13 07:29:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-13 07:29:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:00,735 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-10-13 07:29:00,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:29:00,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850471890] [2024-10-13 07:29:00,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850471890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:29:00,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:29:00,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 07:29:00,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692548000] [2024-10-13 07:29:00,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:29:00,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 07:29:00,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:29:00,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 07:29:00,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-13 07:29:00,737 INFO L87 Difference]: Start difference. First operand 316 states and 455 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-10-13 07:29:02,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:29:02,729 INFO L93 Difference]: Finished difference Result 673 states and 1019 transitions. [2024-10-13 07:29:02,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 07:29:02,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 192 [2024-10-13 07:29:02,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:29:02,734 INFO L225 Difference]: With dead ends: 673 [2024-10-13 07:29:02,734 INFO L226 Difference]: Without dead ends: 430 [2024-10-13 07:29:02,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-10-13 07:29:02,738 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 430 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 1921 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 1921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-13 07:29:02,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 969 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 1921 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-13 07:29:02,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-10-13 07:29:02,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 318. [2024-10-13 07:29:02,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 185 states have (on average 1.2432432432432432) internal successors, (230), 188 states have internal predecessors, (230), 106 states have call successors, (106), 23 states have call predecessors, (106), 26 states have return successors, (122), 106 states have call predecessors, (122), 105 states have call successors, (122) [2024-10-13 07:29:02,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 458 transitions. [2024-10-13 07:29:02,770 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 458 transitions. Word has length 192 [2024-10-13 07:29:02,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:29:02,771 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 458 transitions. [2024-10-13 07:29:02,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2024-10-13 07:29:02,772 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 458 transitions. [2024-10-13 07:29:02,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-13 07:29:02,773 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:29:02,773 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-13 07:29:02,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 07:29:02,774 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:29:02,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:29:02,774 INFO L85 PathProgramCache]: Analyzing trace with hash 588105943, now seen corresponding path program 1 times [2024-10-13 07:29:02,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:29:02,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418590233] [2024-10-13 07:29:02,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:02,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:29:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:29:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:29:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:29:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:29:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:29:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:29:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:29:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:29:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:29:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:29:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:29:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:29:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-13 07:29:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:29:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-13 07:29:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-13 07:29:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-13 07:29:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-13 07:29:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-13 07:29:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-10-13 07:29:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:03,797 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-10-13 07:29:03,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:29:03,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418590233] [2024-10-13 07:29:03,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418590233] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:29:03,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:29:03,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 07:29:03,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584878855] [2024-10-13 07:29:03,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:29:03,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 07:29:03,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:29:03,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 07:29:03,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-13 07:29:03,801 INFO L87 Difference]: Start difference. First operand 318 states and 458 transitions. Second operand has 11 states, 10 states have (on average 7.3) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2024-10-13 07:29:06,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:29:06,060 INFO L93 Difference]: Finished difference Result 681 states and 1037 transitions. [2024-10-13 07:29:06,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 07:29:06,061 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.3) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 213 [2024-10-13 07:29:06,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:29:06,064 INFO L225 Difference]: With dead ends: 681 [2024-10-13 07:29:06,064 INFO L226 Difference]: Without dead ends: 436 [2024-10-13 07:29:06,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-10-13 07:29:06,066 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 474 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 631 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-13 07:29:06,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 944 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 2233 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-13 07:29:06,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-10-13 07:29:06,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 319. [2024-10-13 07:29:06,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 186 states have (on average 1.2419354838709677) internal successors, (231), 189 states have internal predecessors, (231), 106 states have call successors, (106), 23 states have call predecessors, (106), 26 states have return successors, (122), 106 states have call predecessors, (122), 105 states have call successors, (122) [2024-10-13 07:29:06,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 459 transitions. [2024-10-13 07:29:06,087 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 459 transitions. Word has length 213 [2024-10-13 07:29:06,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:29:06,087 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 459 transitions. [2024-10-13 07:29:06,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.3) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2024-10-13 07:29:06,087 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 459 transitions. [2024-10-13 07:29:06,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-10-13 07:29:06,090 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:29:06,090 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-10-13 07:29:06,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 07:29:06,090 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:29:06,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:29:06,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2003826100, now seen corresponding path program 1 times [2024-10-13 07:29:06,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:29:06,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354805034] [2024-10-13 07:29:06,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:06,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:29:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:29:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:29:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:29:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:29:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:29:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:29:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:29:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:29:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:29:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:29:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:29:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:29:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-13 07:29:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:29:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-13 07:29:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-13 07:29:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-10-13 07:29:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:06,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-10-13 07:29:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:07,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-10-13 07:29:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:07,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-10-13 07:29:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:07,034 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-10-13 07:29:07,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:29:07,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354805034] [2024-10-13 07:29:07,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354805034] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:29:07,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104700733] [2024-10-13 07:29:07,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:07,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:29:07,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:29:07,039 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) [2024-10-13 07:29:07,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 07:29:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:07,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 3077 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 07:29:07,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:29:07,724 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-10-13 07:29:07,724 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:29:07,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104700733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:29:07,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:29:07,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2024-10-13 07:29:07,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049844229] [2024-10-13 07:29:07,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:29:07,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 07:29:07,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:29:07,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 07:29:07,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2024-10-13 07:29:07,726 INFO L87 Difference]: Start difference. First operand 319 states and 459 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 7 states have internal predecessors, (75), 5 states have call successors, (31), 4 states have call predecessors, (31), 3 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2024-10-13 07:29:08,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:29:08,196 INFO L93 Difference]: Finished difference Result 571 states and 831 transitions. [2024-10-13 07:29:08,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 07:29:08,196 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 7 states have internal predecessors, (75), 5 states have call successors, (31), 4 states have call predecessors, (31), 3 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 242 [2024-10-13 07:29:08,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:29:08,200 INFO L225 Difference]: With dead ends: 571 [2024-10-13 07:29:08,202 INFO L226 Difference]: Without dead ends: 330 [2024-10-13 07:29:08,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2024-10-13 07:29:08,205 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 65 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 07:29:08,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2705 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 07:29:08,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-10-13 07:29:08,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2024-10-13 07:29:08,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 191 states have (on average 1.2408376963350785) internal successors, (237), 194 states have internal predecessors, (237), 111 states have call successors, (111), 24 states have call predecessors, (111), 27 states have return successors, (127), 111 states have call predecessors, (127), 110 states have call successors, (127) [2024-10-13 07:29:08,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 475 transitions. [2024-10-13 07:29:08,222 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 475 transitions. Word has length 242 [2024-10-13 07:29:08,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:29:08,222 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 475 transitions. [2024-10-13 07:29:08,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 7 states have internal predecessors, (75), 5 states have call successors, (31), 4 states have call predecessors, (31), 3 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2024-10-13 07:29:08,223 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 475 transitions. [2024-10-13 07:29:08,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-10-13 07:29:08,225 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:29:08,225 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-10-13 07:29:08,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 07:29:08,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:29:08,430 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:29:08,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:29:08,431 INFO L85 PathProgramCache]: Analyzing trace with hash -2068339098, now seen corresponding path program 2 times [2024-10-13 07:29:08,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:29:08,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52470272] [2024-10-13 07:29:08,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:08,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:29:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:08,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:08,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:29:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:08,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:08,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:29:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:08,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:29:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:08,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:29:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:08,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:29:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:08,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:29:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:08,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:29:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:08,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:29:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:08,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:29:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:29:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:29:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:29:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-13 07:29:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:29:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 07:29:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-13 07:29:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-13 07:29:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-13 07:29:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-13 07:29:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-13 07:29:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:09,354 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2024-10-13 07:29:09,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:29:09,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52470272] [2024-10-13 07:29:09,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52470272] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:29:09,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813330483] [2024-10-13 07:29:09,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 07:29:09,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:29:09,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:29:09,357 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) [2024-10-13 07:29:09,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 07:29:12,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 07:29:12,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 07:29:12,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 3077 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 07:29:12,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:29:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 189 proven. 3 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-10-13 07:29:12,710 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:29:13,181 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2024-10-13 07:29:13,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813330483] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:29:13,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:29:13,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 24 [2024-10-13 07:29:13,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655727869] [2024-10-13 07:29:13,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:29:13,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-13 07:29:13,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:29:13,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-13 07:29:13,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2024-10-13 07:29:13,184 INFO L87 Difference]: Start difference. First operand 330 states and 475 transitions. Second operand has 24 states, 21 states have (on average 7.761904761904762) internal successors, (163), 18 states have internal predecessors, (163), 13 states have call successors, (84), 8 states have call predecessors, (84), 6 states have return successors, (73), 7 states have call predecessors, (73), 13 states have call successors, (73) [2024-10-13 07:29:17,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:29:17,318 INFO L93 Difference]: Finished difference Result 709 states and 1070 transitions. [2024-10-13 07:29:17,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 07:29:17,318 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 7.761904761904762) internal successors, (163), 18 states have internal predecessors, (163), 13 states have call successors, (84), 8 states have call predecessors, (84), 6 states have return successors, (73), 7 states have call predecessors, (73), 13 states have call successors, (73) Word has length 242 [2024-10-13 07:29:17,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:29:17,322 INFO L225 Difference]: With dead ends: 709 [2024-10-13 07:29:17,322 INFO L226 Difference]: Without dead ends: 452 [2024-10-13 07:29:17,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 545 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=173, Invalid=1233, Unknown=0, NotChecked=0, Total=1406 [2024-10-13 07:29:17,324 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 510 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 5818 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 6447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 5818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-10-13 07:29:17,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 2741 Invalid, 6447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 5818 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-10-13 07:29:17,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-10-13 07:29:17,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 343. [2024-10-13 07:29:17,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 203 states have (on average 1.251231527093596) internal successors, (254), 205 states have internal predecessors, (254), 112 states have call successors, (112), 24 states have call predecessors, (112), 27 states have return successors, (128), 113 states have call predecessors, (128), 111 states have call successors, (128) [2024-10-13 07:29:17,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 494 transitions. [2024-10-13 07:29:17,343 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 494 transitions. Word has length 242 [2024-10-13 07:29:17,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:29:17,344 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 494 transitions. [2024-10-13 07:29:17,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 7.761904761904762) internal successors, (163), 18 states have internal predecessors, (163), 13 states have call successors, (84), 8 states have call predecessors, (84), 6 states have return successors, (73), 7 states have call predecessors, (73), 13 states have call successors, (73) [2024-10-13 07:29:17,344 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 494 transitions. [2024-10-13 07:29:17,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-10-13 07:29:17,346 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:29:17,346 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-10-13 07:29:17,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 07:29:17,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:29:17,551 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:29:17,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:29:17,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2071941206, now seen corresponding path program 1 times [2024-10-13 07:29:17,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:29:17,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093265976] [2024-10-13 07:29:17,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:17,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:29:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:29:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:29:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:29:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:29:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:29:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:29:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:29:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:29:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:29:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:29:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:29:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:29:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-13 07:29:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:19,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:29:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-13 07:29:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-13 07:29:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-10-13 07:29:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-10-13 07:29:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-10-13 07:29:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-10-13 07:29:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:20,445 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-10-13 07:29:20,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:29:20,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093265976] [2024-10-13 07:29:20,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093265976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:29:20,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:29:20,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 07:29:20,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123280460] [2024-10-13 07:29:20,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:29:20,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 07:29:20,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:29:20,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 07:29:20,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:29:20,447 INFO L87 Difference]: Start difference. First operand 343 states and 494 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-13 07:29:22,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:29:22,775 INFO L93 Difference]: Finished difference Result 788 states and 1186 transitions. [2024-10-13 07:29:22,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 07:29:22,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 268 [2024-10-13 07:29:22,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:29:22,780 INFO L225 Difference]: With dead ends: 788 [2024-10-13 07:29:22,780 INFO L226 Difference]: Without dead ends: 488 [2024-10-13 07:29:22,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2024-10-13 07:29:22,783 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 275 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 2238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-13 07:29:22,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 938 Invalid, 2238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 1862 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-13 07:29:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-10-13 07:29:22,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 349. [2024-10-13 07:29:22,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 209 states have (on average 1.244019138755981) internal successors, (260), 211 states have internal predecessors, (260), 112 states have call successors, (112), 24 states have call predecessors, (112), 27 states have return successors, (128), 113 states have call predecessors, (128), 111 states have call successors, (128) [2024-10-13 07:29:22,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 500 transitions. [2024-10-13 07:29:22,810 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 500 transitions. Word has length 268 [2024-10-13 07:29:22,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:29:22,811 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 500 transitions. [2024-10-13 07:29:22,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-13 07:29:22,811 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 500 transitions. [2024-10-13 07:29:22,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-13 07:29:22,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:29:22,814 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2024-10-13 07:29:22,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 07:29:22,814 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:29:22,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:29:22,815 INFO L85 PathProgramCache]: Analyzing trace with hash 856028068, now seen corresponding path program 1 times [2024-10-13 07:29:22,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:29:22,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417790143] [2024-10-13 07:29:22,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:22,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:29:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:29:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:29:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:29:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:29:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:29:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:29:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:29:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:29:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:29:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:29:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:29:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:29:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-13 07:29:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:29:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-13 07:29:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-13 07:29:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-10-13 07:29:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-13 07:29:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-10-13 07:29:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-10-13 07:29:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:23,931 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 28 proven. 6 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2024-10-13 07:29:23,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:29:23,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417790143] [2024-10-13 07:29:23,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417790143] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:29:23,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776266738] [2024-10-13 07:29:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:23,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:29:23,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:29:23,933 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:29:23,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 07:29:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:24,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 3206 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 07:29:24,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:29:24,610 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-10-13 07:29:24,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:29:24,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776266738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:29:24,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:29:24,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2024-10-13 07:29:24,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788328944] [2024-10-13 07:29:24,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:29:24,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 07:29:24,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:29:24,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 07:29:24,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-10-13 07:29:24,613 INFO L87 Difference]: Start difference. First operand 349 states and 500 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-10-13 07:29:24,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:29:24,784 INFO L93 Difference]: Finished difference Result 664 states and 966 transitions. [2024-10-13 07:29:24,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 07:29:24,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 255 [2024-10-13 07:29:24,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:29:24,788 INFO L225 Difference]: With dead ends: 664 [2024-10-13 07:29:24,788 INFO L226 Difference]: Without dead ends: 358 [2024-10-13 07:29:24,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-10-13 07:29:24,790 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:29:24,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1147 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 07:29:24,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-10-13 07:29:24,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 355. [2024-10-13 07:29:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 215 states have (on average 1.2372093023255815) internal successors, (266), 217 states have internal predecessors, (266), 112 states have call successors, (112), 24 states have call predecessors, (112), 27 states have return successors, (128), 113 states have call predecessors, (128), 111 states have call successors, (128) [2024-10-13 07:29:24,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 506 transitions. [2024-10-13 07:29:24,809 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 506 transitions. Word has length 255 [2024-10-13 07:29:24,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:29:24,810 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 506 transitions. [2024-10-13 07:29:24,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-10-13 07:29:24,810 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 506 transitions. [2024-10-13 07:29:24,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-10-13 07:29:24,812 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:29:24,812 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-10-13 07:29:24,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 07:29:25,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:29:25,017 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:29:25,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:29:25,018 INFO L85 PathProgramCache]: Analyzing trace with hash -154902878, now seen corresponding path program 1 times [2024-10-13 07:29:25,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:29:25,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420691503] [2024-10-13 07:29:25,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:25,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:29:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:27,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:27,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:29:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:27,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:27,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:29:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:27,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:29:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:27,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:29:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:27,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:29:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:27,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:29:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:27,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:29:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:29:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:29:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:29:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:29:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:29:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-13 07:29:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:29:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-13 07:29:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-13 07:29:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-10-13 07:29:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-10-13 07:29:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-10-13 07:29:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-10-13 07:29:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:28,932 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2024-10-13 07:29:28,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:29:28,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420691503] [2024-10-13 07:29:28,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420691503] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:29:28,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880996164] [2024-10-13 07:29:28,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:28,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:29:28,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:29:28,936 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:29:28,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 07:29:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:29,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 3331 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-10-13 07:29:29,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:29:29,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-13 07:29:29,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-13 07:29:30,251 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-10-13 07:29:30,251 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:29:30,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880996164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:29:30,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:29:30,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [14] total 25 [2024-10-13 07:29:30,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143190343] [2024-10-13 07:29:30,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:29:30,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 07:29:30,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:29:30,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 07:29:30,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2024-10-13 07:29:30,253 INFO L87 Difference]: Start difference. First operand 355 states and 506 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2024-10-13 07:29:31,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:29:31,902 INFO L93 Difference]: Finished difference Result 709 states and 1029 transitions. [2024-10-13 07:29:31,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 07:29:31,902 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) Word has length 268 [2024-10-13 07:29:31,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:29:31,906 INFO L225 Difference]: With dead ends: 709 [2024-10-13 07:29:31,906 INFO L226 Difference]: Without dead ends: 397 [2024-10-13 07:29:31,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=842, Unknown=0, NotChecked=0, Total=930 [2024-10-13 07:29:31,908 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 44 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 4271 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-13 07:29:31,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 4271 Invalid, 947 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-13 07:29:31,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-10-13 07:29:31,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 388. [2024-10-13 07:29:31,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 247 states have (on average 1.242914979757085) internal successors, (307), 248 states have internal predecessors, (307), 112 states have call successors, (112), 24 states have call predecessors, (112), 28 states have return successors, (141), 115 states have call predecessors, (141), 111 states have call successors, (141) [2024-10-13 07:29:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 560 transitions. [2024-10-13 07:29:31,929 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 560 transitions. Word has length 268 [2024-10-13 07:29:31,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:29:31,931 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 560 transitions. [2024-10-13 07:29:31,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2024-10-13 07:29:31,932 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 560 transitions. [2024-10-13 07:29:31,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-10-13 07:29:31,934 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:29:31,934 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2024-10-13 07:29:31,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-13 07:29:32,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-13 07:29:32,135 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:29:32,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:29:32,135 INFO L85 PathProgramCache]: Analyzing trace with hash 662690086, now seen corresponding path program 1 times [2024-10-13 07:29:32,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:29:32,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373918474] [2024-10-13 07:29:32,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:32,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:29:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:29:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:29:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:29:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:29:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:29:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:29:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:29:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:29:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:29:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:29:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-13 07:29:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-13 07:29:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-13 07:29:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 07:29:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-13 07:29:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-13 07:29:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-10-13 07:29:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2024-10-13 07:29:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-10-13 07:29:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-10-13 07:29:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:32,897 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 5 proven. 34 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-10-13 07:29:32,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:29:32,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373918474] [2024-10-13 07:29:32,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373918474] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:29:32,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674121206] [2024-10-13 07:29:32,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:32,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:29:32,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:29:32,904 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:29:32,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 07:29:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:33,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 3321 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 07:29:33,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:29:33,631 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 219 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-10-13 07:29:33,633 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:29:33,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674121206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:29:33,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:29:33,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2024-10-13 07:29:33,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873971820] [2024-10-13 07:29:33,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:29:33,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 07:29:33,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:29:33,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 07:29:33,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 07:29:33,636 INFO L87 Difference]: Start difference. First operand 388 states and 560 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-10-13 07:29:33,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:29:33,763 INFO L93 Difference]: Finished difference Result 733 states and 1094 transitions. [2024-10-13 07:29:33,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 07:29:33,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 268 [2024-10-13 07:29:33,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:29:33,766 INFO L225 Difference]: With dead ends: 733 [2024-10-13 07:29:33,767 INFO L226 Difference]: Without dead ends: 388 [2024-10-13 07:29:33,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 07:29:33,770 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 0 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:29:33,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1154 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 07:29:33,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-10-13 07:29:33,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2024-10-13 07:29:33,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 247 states have (on average 1.2388663967611335) internal successors, (306), 248 states have internal predecessors, (306), 112 states have call successors, (112), 24 states have call predecessors, (112), 28 states have return successors, (141), 115 states have call predecessors, (141), 111 states have call successors, (141) [2024-10-13 07:29:33,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 559 transitions. [2024-10-13 07:29:33,792 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 559 transitions. Word has length 268 [2024-10-13 07:29:33,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:29:33,795 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 559 transitions. [2024-10-13 07:29:33,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-10-13 07:29:33,795 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 559 transitions. [2024-10-13 07:29:33,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-10-13 07:29:33,796 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:29:33,797 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2024-10-13 07:29:33,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-13 07:29:33,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-13 07:29:33,998 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:29:33,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:29:33,998 INFO L85 PathProgramCache]: Analyzing trace with hash 139317614, now seen corresponding path program 1 times [2024-10-13 07:29:33,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:29:33,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760385342] [2024-10-13 07:29:33,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:33,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:29:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:29:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:29:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:29:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:29:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:29:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:29:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:29:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:29:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:29:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:29:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:36,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-13 07:29:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-13 07:29:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:29:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 07:29:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-13 07:29:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-13 07:29:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-13 07:29:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-13 07:29:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-10-13 07:29:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-10-13 07:29:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:37,254 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-10-13 07:29:37,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:29:37,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760385342] [2024-10-13 07:29:37,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760385342] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:29:37,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465333918] [2024-10-13 07:29:37,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:37,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:29:37,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:29:37,256 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:29:37,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 07:29:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:38,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 3341 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-10-13 07:29:38,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:29:38,521 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-10-13 07:29:38,521 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:29:38,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465333918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:29:38,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:29:38,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 25 [2024-10-13 07:29:38,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742391210] [2024-10-13 07:29:38,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:29:38,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 07:29:38,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:29:38,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 07:29:38,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2024-10-13 07:29:38,526 INFO L87 Difference]: Start difference. First operand 388 states and 559 transitions. Second operand has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2024-10-13 07:29:40,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:29:40,225 INFO L93 Difference]: Finished difference Result 783 states and 1145 transitions. [2024-10-13 07:29:40,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 07:29:40,226 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) Word has length 272 [2024-10-13 07:29:40,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:29:40,230 INFO L225 Difference]: With dead ends: 783 [2024-10-13 07:29:40,230 INFO L226 Difference]: Without dead ends: 438 [2024-10-13 07:29:40,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2024-10-13 07:29:40,234 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 51 mSDsluCounter, 3097 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3480 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-13 07:29:40,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3480 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-13 07:29:40,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-10-13 07:29:40,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 409. [2024-10-13 07:29:40,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 267 states have (on average 1.2546816479400749) internal successors, (335), 267 states have internal predecessors, (335), 112 states have call successors, (112), 24 states have call predecessors, (112), 29 states have return successors, (154), 117 states have call predecessors, (154), 111 states have call successors, (154) [2024-10-13 07:29:40,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 601 transitions. [2024-10-13 07:29:40,325 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 601 transitions. Word has length 272 [2024-10-13 07:29:40,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:29:40,325 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 601 transitions. [2024-10-13 07:29:40,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2024-10-13 07:29:40,326 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 601 transitions. [2024-10-13 07:29:40,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-10-13 07:29:40,327 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:29:40,327 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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] [2024-10-13 07:29:40,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-13 07:29:40,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-13 07:29:40,532 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:29:40,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:29:40,533 INFO L85 PathProgramCache]: Analyzing trace with hash 2081115826, now seen corresponding path program 1 times [2024-10-13 07:29:40,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:29:40,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881554327] [2024-10-13 07:29:40,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:40,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:29:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 07:29:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 07:29:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 07:29:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 07:29:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 07:29:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 07:29:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-13 07:29:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-13 07:29:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 07:29:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-13 07:29:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-13 07:29:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 07:29:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-13 07:29:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-13 07:29:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-13 07:29:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 07:29:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:41,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-13 07:29:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-13 07:29:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-13 07:29:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-13 07:29:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-13 07:29:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-10-13 07:29:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-10-13 07:29:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 07:29:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 07:29:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:42,112 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2024-10-13 07:29:42,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:29:42,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881554327] [2024-10-13 07:29:42,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881554327] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:29:42,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439939165] [2024-10-13 07:29:42,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:29:42,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:29:42,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:29:42,115 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:29:42,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-13 07:29:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:29:43,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 3339 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-10-13 07:29:43,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:29:43,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-13 07:29:43,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-13 07:29:43,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-13 07:29:43,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2024-10-13 07:29:43,741 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 247 proven. 26 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-10-13 07:29:43,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 07:29:44,780 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2024-10-13 07:29:44,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439939165] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 07:29:44,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 07:29:44,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 18, 14] total 34 [2024-10-13 07:29:44,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936191082] [2024-10-13 07:29:44,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 07:29:44,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-13 07:29:44,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:29:44,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-13 07:29:44,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1039, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 07:29:44,786 INFO L87 Difference]: Start difference. First operand 409 states and 601 transitions. Second operand has 34 states, 33 states have (on average 5.333333333333333) internal successors, (176), 30 states have internal predecessors, (176), 8 states have call successors, (61), 6 states have call predecessors, (61), 6 states have return successors, (51), 9 states have call predecessors, (51), 8 states have call successors, (51) [2024-10-13 07:29:49,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:29:53,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:29:57,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-13 07:30:01,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]