./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 1ed18464d9ce97d1cc1f49d30a31556076037dce4eff04ef8ec5de65e115e002 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 06:06:08,586 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 06:06:08,669 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 06:06:08,676 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 06:06:08,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 06:06:08,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 06:06:08,708 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 06:06:08,708 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 06:06:08,709 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 06:06:08,711 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 06:06:08,712 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 06:06:08,712 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 06:06:08,713 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 06:06:08,713 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 06:06:08,714 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 06:06:08,717 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 06:06:08,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 06:06:08,718 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 06:06:08,718 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 06:06:08,719 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 06:06:08,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 06:06:08,720 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 06:06:08,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 06:06:08,720 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 06:06:08,720 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 06:06:08,721 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 06:06:08,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 06:06:08,722 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 06:06:08,722 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 06:06:08,723 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 06:06:08,723 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 06:06:08,723 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 06:06:08,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:06:08,724 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 06:06:08,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 06:06:08,725 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 06:06:08,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 06:06:08,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 06:06:08,726 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 06:06:08,726 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 06:06:08,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 06:06:08,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 06:06:08,727 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed18464d9ce97d1cc1f49d30a31556076037dce4eff04ef8ec5de65e115e002 [2024-10-13 06:06:09,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 06:06:09,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 06:06:09,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 06:06:09,076 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 06:06:09,077 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 06:06:09,078 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i [2024-10-13 06:06:10,597 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 06:06:10,848 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 06:06:10,850 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i [2024-10-13 06:06:10,867 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c54a7ba8/8d61932ed6a549b3a0413ac7333b4de6/FLAGd47801bb4 [2024-10-13 06:06:10,883 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c54a7ba8/8d61932ed6a549b3a0413ac7333b4de6 [2024-10-13 06:06:10,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 06:06:10,887 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 06:06:10,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 06:06:10,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 06:06:10,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 06:06:10,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:06:10" (1/1) ... [2024-10-13 06:06:10,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bea9dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:10, skipping insertion in model container [2024-10-13 06:06:10,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:06:10" (1/1) ... [2024-10-13 06:06:10,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 06:06:11,140 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/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i[917,930] [2024-10-13 06:06:11,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:06:11,257 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 06:06:11,271 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/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i[917,930] [2024-10-13 06:06:11,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:06:11,337 INFO L204 MainTranslator]: Completed translation [2024-10-13 06:06:11,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11 WrapperNode [2024-10-13 06:06:11,338 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 06:06:11,339 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 06:06:11,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 06:06:11,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 06:06:11,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11" (1/1) ... [2024-10-13 06:06:11,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11" (1/1) ... [2024-10-13 06:06:11,404 INFO L138 Inliner]: procedures = 26, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 445 [2024-10-13 06:06:11,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 06:06:11,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 06:06:11,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 06:06:11,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 06:06:11,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11" (1/1) ... [2024-10-13 06:06:11,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11" (1/1) ... [2024-10-13 06:06:11,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11" (1/1) ... [2024-10-13 06:06:11,452 INFO L175 MemorySlicer]: Split 123 memory accesses to 5 slices as follows [2, 16, 70, 11, 24]. 57 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 6, 1, 3]. The 16 writes are split as follows [0, 2, 8, 1, 5]. [2024-10-13 06:06:11,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11" (1/1) ... [2024-10-13 06:06:11,453 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11" (1/1) ... [2024-10-13 06:06:11,468 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11" (1/1) ... [2024-10-13 06:06:11,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11" (1/1) ... [2024-10-13 06:06:11,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11" (1/1) ... [2024-10-13 06:06:11,478 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11" (1/1) ... [2024-10-13 06:06:11,483 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 06:06:11,484 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 06:06:11,485 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 06:06:11,485 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 06:06:11,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11" (1/1) ... [2024-10-13 06:06:11,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:06:11,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:06:11,524 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 06:06:11,532 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 06:06:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 06:06:11,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 06:06:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 06:06:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 06:06:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 06:06:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 06:06:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 06:06:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 06:06:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 06:06:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 06:06:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 06:06:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 06:06:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 06:06:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 06:06:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 06:06:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 06:06:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 06:06:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 06:06:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 06:06:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 06:06:11,734 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 06:06:11,736 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 06:06:12,248 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-10-13 06:06:12,248 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 06:06:12,281 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 06:06:12,282 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 06:06:12,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:06:12 BoogieIcfgContainer [2024-10-13 06:06:12,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 06:06:12,286 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 06:06:12,286 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 06:06:12,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 06:06:12,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:06:10" (1/3) ... [2024-10-13 06:06:12,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74320c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:06:12, skipping insertion in model container [2024-10-13 06:06:12,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:06:11" (2/3) ... [2024-10-13 06:06:12,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74320c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:06:12, skipping insertion in model container [2024-10-13 06:06:12,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:06:12" (3/3) ... [2024-10-13 06:06:12,295 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-27.i [2024-10-13 06:06:12,310 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 06:06:12,310 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 06:06:12,372 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 06:06:12,379 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;@6e4e07c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 06:06:12,379 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 06:06:12,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 06:06:12,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-13 06:06:12,400 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:12,401 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:12,402 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:12,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:12,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1954445179, now seen corresponding path program 1 times [2024-10-13 06:06:12,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:12,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538188579] [2024-10-13 06:06:12,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:12,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:12,887 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:12,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:12,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538188579] [2024-10-13 06:06:12,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538188579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:12,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:12,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 06:06:12,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062754009] [2024-10-13 06:06:12,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:12,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 06:06:12,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:12,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 06:06:12,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:06:12,931 INFO L87 Difference]: Start difference. First operand has 87 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:12,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:12,986 INFO L93 Difference]: Finished difference Result 171 states and 273 transitions. [2024-10-13 06:06:12,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 06:06:12,989 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126 [2024-10-13 06:06:12,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:12,999 INFO L225 Difference]: With dead ends: 171 [2024-10-13 06:06:13,000 INFO L226 Difference]: Without dead ends: 85 [2024-10-13 06:06:13,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:06:13,011 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:13,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:06:13,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-13 06:06:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-10-13 06:06:13,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 66 states have internal predecessors, (90), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 06:06:13,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2024-10-13 06:06:13,081 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 126 [2024-10-13 06:06:13,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:13,083 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2024-10-13 06:06:13,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:13,084 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2024-10-13 06:06:13,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-13 06:06:13,092 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:13,092 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:13,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 06:06:13,093 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:13,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:13,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2107448995, now seen corresponding path program 1 times [2024-10-13 06:06:13,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:13,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795165944] [2024-10-13 06:06:13,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:13,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:15,747 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:15,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:15,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795165944] [2024-10-13 06:06:15,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795165944] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:15,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:15,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:06:15,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699716779] [2024-10-13 06:06:15,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:15,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:06:15,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:15,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:06:15,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:06:15,757 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-10-13 06:06:16,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:16,445 INFO L93 Difference]: Finished difference Result 218 states and 316 transitions. [2024-10-13 06:06:16,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:06:16,446 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 126 [2024-10-13 06:06:16,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:16,449 INFO L225 Difference]: With dead ends: 218 [2024-10-13 06:06:16,449 INFO L226 Difference]: Without dead ends: 134 [2024-10-13 06:06:16,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:06:16,452 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 208 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:16,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 427 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:06:16,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-10-13 06:06:16,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 131. [2024-10-13 06:06:16,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 107 states have (on average 1.3831775700934579) internal successors, (148), 108 states have internal predecessors, (148), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-13 06:06:16,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 190 transitions. [2024-10-13 06:06:16,502 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 190 transitions. Word has length 126 [2024-10-13 06:06:16,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:16,503 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 190 transitions. [2024-10-13 06:06:16,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-10-13 06:06:16,505 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 190 transitions. [2024-10-13 06:06:16,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-13 06:06:16,509 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:16,510 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:16,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 06:06:16,510 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:16,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:16,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1303576472, now seen corresponding path program 1 times [2024-10-13 06:06:16,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:16,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489494954] [2024-10-13 06:06:16,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:16,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:18,638 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:18,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:18,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489494954] [2024-10-13 06:06:18,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489494954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:18,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:18,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:06:18,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961318782] [2024-10-13 06:06:18,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:18,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:06:18,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:18,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:06:18,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:06:18,643 INFO L87 Difference]: Start difference. First operand 131 states and 190 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:19,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:19,801 INFO L93 Difference]: Finished difference Result 374 states and 534 transitions. [2024-10-13 06:06:19,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:06:19,802 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 128 [2024-10-13 06:06:19,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:19,808 INFO L225 Difference]: With dead ends: 374 [2024-10-13 06:06:19,808 INFO L226 Difference]: Without dead ends: 244 [2024-10-13 06:06:19,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-10-13 06:06:19,811 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 393 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:19,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 465 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 06:06:19,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-10-13 06:06:19,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 141. [2024-10-13 06:06:19,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 117 states have (on average 1.393162393162393) internal successors, (163), 118 states have internal predecessors, (163), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-13 06:06:19,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 205 transitions. [2024-10-13 06:06:19,858 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 205 transitions. Word has length 128 [2024-10-13 06:06:19,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:19,859 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 205 transitions. [2024-10-13 06:06:19,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:19,859 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 205 transitions. [2024-10-13 06:06:19,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-13 06:06:19,862 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:19,862 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:19,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 06:06:19,863 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:19,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:19,863 INFO L85 PathProgramCache]: Analyzing trace with hash -602511894, now seen corresponding path program 1 times [2024-10-13 06:06:19,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:19,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828657074] [2024-10-13 06:06:19,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:19,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:20,732 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:20,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:20,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828657074] [2024-10-13 06:06:20,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828657074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:20,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:20,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:06:20,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479263614] [2024-10-13 06:06:20,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:20,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:06:20,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:20,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:06:20,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:06:20,736 INFO L87 Difference]: Start difference. First operand 141 states and 205 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:21,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:21,180 INFO L93 Difference]: Finished difference Result 291 states and 419 transitions. [2024-10-13 06:06:21,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:06:21,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 128 [2024-10-13 06:06:21,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:21,184 INFO L225 Difference]: With dead ends: 291 [2024-10-13 06:06:21,185 INFO L226 Difference]: Without dead ends: 151 [2024-10-13 06:06:21,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:06:21,190 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 250 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:21,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 445 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:06:21,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-10-13 06:06:21,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 127. [2024-10-13 06:06:21,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 103 states have (on average 1.3689320388349515) internal successors, (141), 104 states have internal predecessors, (141), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-13 06:06:21,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 183 transitions. [2024-10-13 06:06:21,231 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 183 transitions. Word has length 128 [2024-10-13 06:06:21,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:21,231 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 183 transitions. [2024-10-13 06:06:21,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:21,232 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2024-10-13 06:06:21,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-13 06:06:21,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:21,233 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:21,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 06:06:21,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:21,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:21,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1879542168, now seen corresponding path program 1 times [2024-10-13 06:06:21,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:21,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784027589] [2024-10-13 06:06:21,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:21,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:22,206 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:22,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:22,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784027589] [2024-10-13 06:06:22,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784027589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:22,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:22,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:06:22,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460310570] [2024-10-13 06:06:22,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:22,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:06:22,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:22,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:06:22,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:06:22,210 INFO L87 Difference]: Start difference. First operand 127 states and 183 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:22,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:22,693 INFO L93 Difference]: Finished difference Result 272 states and 385 transitions. [2024-10-13 06:06:22,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:06:22,694 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 128 [2024-10-13 06:06:22,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:22,696 INFO L225 Difference]: With dead ends: 272 [2024-10-13 06:06:22,697 INFO L226 Difference]: Without dead ends: 146 [2024-10-13 06:06:22,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:06:22,699 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 229 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:22,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 494 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:06:22,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-10-13 06:06:22,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 98. [2024-10-13 06:06:22,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 78 states have (on average 1.3333333333333333) internal successors, (104), 78 states have internal predecessors, (104), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 06:06:22,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 138 transitions. [2024-10-13 06:06:22,732 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 138 transitions. Word has length 128 [2024-10-13 06:06:22,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:22,733 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 138 transitions. [2024-10-13 06:06:22,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:22,735 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 138 transitions. [2024-10-13 06:06:22,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-13 06:06:22,738 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:22,738 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:22,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 06:06:22,738 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:22,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:22,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2045767757, now seen corresponding path program 1 times [2024-10-13 06:06:22,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:22,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490964462] [2024-10-13 06:06:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:22,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,061 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:23,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:23,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490964462] [2024-10-13 06:06:23,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490964462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:23,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:23,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:06:23,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929844798] [2024-10-13 06:06:23,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:23,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:06:23,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:23,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:06:23,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:06:23,069 INFO L87 Difference]: Start difference. First operand 98 states and 138 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:23,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:23,145 INFO L93 Difference]: Finished difference Result 249 states and 353 transitions. [2024-10-13 06:06:23,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:06:23,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2024-10-13 06:06:23,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:23,148 INFO L225 Difference]: With dead ends: 249 [2024-10-13 06:06:23,148 INFO L226 Difference]: Without dead ends: 152 [2024-10-13 06:06:23,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:06:23,149 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 63 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:23,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 380 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:06:23,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-10-13 06:06:23,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 102. [2024-10-13 06:06:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 82 states have (on average 1.3414634146341464) internal successors, (110), 82 states have internal predecessors, (110), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 06:06:23,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2024-10-13 06:06:23,179 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 144 transitions. Word has length 129 [2024-10-13 06:06:23,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:23,180 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 144 transitions. [2024-10-13 06:06:23,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:23,180 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 144 transitions. [2024-10-13 06:06:23,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-13 06:06:23,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:23,183 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:23,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 06:06:23,183 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:23,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:23,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1623065931, now seen corresponding path program 1 times [2024-10-13 06:06:23,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:23,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660293955] [2024-10-13 06:06:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:23,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:23,503 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:23,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:23,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660293955] [2024-10-13 06:06:23,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660293955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:23,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:23,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:06:23,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420686264] [2024-10-13 06:06:23,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:23,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:06:23,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:23,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:06:23,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:06:23,505 INFO L87 Difference]: Start difference. First operand 102 states and 144 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:23,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:23,586 INFO L93 Difference]: Finished difference Result 253 states and 358 transitions. [2024-10-13 06:06:23,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:06:23,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2024-10-13 06:06:23,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:23,589 INFO L225 Difference]: With dead ends: 253 [2024-10-13 06:06:23,589 INFO L226 Difference]: Without dead ends: 152 [2024-10-13 06:06:23,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:06:23,590 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 103 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:23,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 326 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:06:23,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-10-13 06:06:23,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 129. [2024-10-13 06:06:23,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 109 states have (on average 1.3577981651376148) internal successors, (148), 109 states have internal predecessors, (148), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 06:06:23,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 182 transitions. [2024-10-13 06:06:23,618 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 182 transitions. Word has length 129 [2024-10-13 06:06:23,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:23,619 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 182 transitions. [2024-10-13 06:06:23,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:23,619 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 182 transitions. [2024-10-13 06:06:23,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-13 06:06:23,622 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:23,622 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:23,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 06:06:23,623 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:23,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:23,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2016092941, now seen corresponding path program 1 times [2024-10-13 06:06:23,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:23,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351766476] [2024-10-13 06:06:23,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:23,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:25,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:25,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:25,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351766476] [2024-10-13 06:06:25,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351766476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:25,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:25,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 06:06:25,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590951276] [2024-10-13 06:06:25,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:25,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 06:06:25,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:25,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 06:06:25,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:06:25,870 INFO L87 Difference]: Start difference. First operand 129 states and 182 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:27,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:27,255 INFO L93 Difference]: Finished difference Result 401 states and 560 transitions. [2024-10-13 06:06:27,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 06:06:27,256 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 129 [2024-10-13 06:06:27,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:27,258 INFO L225 Difference]: With dead ends: 401 [2024-10-13 06:06:27,259 INFO L226 Difference]: Without dead ends: 273 [2024-10-13 06:06:27,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2024-10-13 06:06:27,261 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 354 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:27,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 670 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 06:06:27,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-10-13 06:06:27,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 231. [2024-10-13 06:06:27,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 201 states have (on average 1.3532338308457712) internal successors, (272), 202 states have internal predecessors, (272), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:27,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 322 transitions. [2024-10-13 06:06:27,303 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 322 transitions. Word has length 129 [2024-10-13 06:06:27,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:27,304 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 322 transitions. [2024-10-13 06:06:27,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:27,304 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 322 transitions. [2024-10-13 06:06:27,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-13 06:06:27,306 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:27,306 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:27,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 06:06:27,306 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:27,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:27,306 INFO L85 PathProgramCache]: Analyzing trace with hash 2144860849, now seen corresponding path program 1 times [2024-10-13 06:06:27,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:27,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872099048] [2024-10-13 06:06:27,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:27,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:27,675 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:27,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:27,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872099048] [2024-10-13 06:06:27,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872099048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:27,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:27,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:06:27,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197454531] [2024-10-13 06:06:27,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:27,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:06:27,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:27,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:06:27,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:06:27,679 INFO L87 Difference]: Start difference. First operand 231 states and 322 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:27,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:27,789 INFO L93 Difference]: Finished difference Result 513 states and 715 transitions. [2024-10-13 06:06:27,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:06:27,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2024-10-13 06:06:27,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:27,792 INFO L225 Difference]: With dead ends: 513 [2024-10-13 06:06:27,793 INFO L226 Difference]: Without dead ends: 283 [2024-10-13 06:06:27,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:06:27,796 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 96 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:27,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 442 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:06:27,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-10-13 06:06:27,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 259. [2024-10-13 06:06:27,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 229 states have (on average 1.3580786026200873) internal successors, (311), 230 states have internal predecessors, (311), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:27,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 361 transitions. [2024-10-13 06:06:27,845 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 361 transitions. Word has length 129 [2024-10-13 06:06:27,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:27,847 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 361 transitions. [2024-10-13 06:06:27,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:27,847 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 361 transitions. [2024-10-13 06:06:27,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-13 06:06:27,849 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:27,849 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:27,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 06:06:27,850 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:27,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:27,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2108650929, now seen corresponding path program 1 times [2024-10-13 06:06:27,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:27,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177909685] [2024-10-13 06:06:27,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:27,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:28,146 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:28,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:28,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177909685] [2024-10-13 06:06:28,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177909685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:28,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:28,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:06:28,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740941923] [2024-10-13 06:06:28,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:28,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:06:28,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:28,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:06:28,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:06:28,149 INFO L87 Difference]: Start difference. First operand 259 states and 361 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:28,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:28,260 INFO L93 Difference]: Finished difference Result 597 states and 832 transitions. [2024-10-13 06:06:28,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:06:28,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2024-10-13 06:06:28,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:28,264 INFO L225 Difference]: With dead ends: 597 [2024-10-13 06:06:28,264 INFO L226 Difference]: Without dead ends: 339 [2024-10-13 06:06:28,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:06:28,265 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 56 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:28,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 440 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:06:28,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-10-13 06:06:28,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 276. [2024-10-13 06:06:28,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 246 states have (on average 1.3414634146341464) internal successors, (330), 247 states have internal predecessors, (330), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:28,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 380 transitions. [2024-10-13 06:06:28,307 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 380 transitions. Word has length 129 [2024-10-13 06:06:28,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:28,308 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 380 transitions. [2024-10-13 06:06:28,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:28,308 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 380 transitions. [2024-10-13 06:06:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-13 06:06:28,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:28,310 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:28,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 06:06:28,310 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:28,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:28,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1472401365, now seen corresponding path program 1 times [2024-10-13 06:06:28,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:28,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752873081] [2024-10-13 06:06:28,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:28,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:29,868 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:29,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:29,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752873081] [2024-10-13 06:06:29,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752873081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:29,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:29,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-13 06:06:29,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489081281] [2024-10-13 06:06:29,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:29,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 06:06:29,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:29,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 06:06:29,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:06:29,871 INFO L87 Difference]: Start difference. First operand 276 states and 380 transitions. Second operand has 13 states, 12 states have (on average 4.0) internal successors, (48), 13 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:06:30,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:30,918 INFO L93 Difference]: Finished difference Result 710 states and 974 transitions. [2024-10-13 06:06:30,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 06:06:30,919 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 13 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 130 [2024-10-13 06:06:30,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:30,921 INFO L225 Difference]: With dead ends: 710 [2024-10-13 06:06:30,922 INFO L226 Difference]: Without dead ends: 435 [2024-10-13 06:06:30,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-10-13 06:06:30,923 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 269 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:30,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 868 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 06:06:30,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-10-13 06:06:30,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 331. [2024-10-13 06:06:30,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 301 states have (on average 1.3421926910299002) internal successors, (404), 302 states have internal predecessors, (404), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:30,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 454 transitions. [2024-10-13 06:06:30,965 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 454 transitions. Word has length 130 [2024-10-13 06:06:30,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:30,966 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 454 transitions. [2024-10-13 06:06:30,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 13 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:06:30,966 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 454 transitions. [2024-10-13 06:06:30,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-13 06:06:30,968 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:30,968 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:30,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 06:06:30,969 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:30,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:30,969 INFO L85 PathProgramCache]: Analyzing trace with hash -771336787, now seen corresponding path program 1 times [2024-10-13 06:06:30,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:30,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269558618] [2024-10-13 06:06:30,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:30,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:32,479 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:32,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:32,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269558618] [2024-10-13 06:06:32,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269558618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:32,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:32,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:06:32,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261211781] [2024-10-13 06:06:32,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:32,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:06:32,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:32,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:06:32,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:06:32,482 INFO L87 Difference]: Start difference. First operand 331 states and 454 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:06:33,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:33,316 INFO L93 Difference]: Finished difference Result 748 states and 1020 transitions. [2024-10-13 06:06:33,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:06:33,317 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 130 [2024-10-13 06:06:33,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:33,320 INFO L225 Difference]: With dead ends: 748 [2024-10-13 06:06:33,320 INFO L226 Difference]: Without dead ends: 418 [2024-10-13 06:06:33,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:06:33,322 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 160 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:33,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 652 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 06:06:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-10-13 06:06:33,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 331. [2024-10-13 06:06:33,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 301 states have (on average 1.3255813953488371) internal successors, (399), 302 states have internal predecessors, (399), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:33,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 449 transitions. [2024-10-13 06:06:33,386 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 449 transitions. Word has length 130 [2024-10-13 06:06:33,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:33,387 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 449 transitions. [2024-10-13 06:06:33,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:06:33,388 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 449 transitions. [2024-10-13 06:06:33,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-13 06:06:33,390 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:33,390 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:33,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 06:06:33,391 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:33,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:33,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1133622189, now seen corresponding path program 1 times [2024-10-13 06:06:33,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:33,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907256540] [2024-10-13 06:06:33,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:33,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:34,867 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:34,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:34,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907256540] [2024-10-13 06:06:34,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907256540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:34,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:34,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:06:34,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590161047] [2024-10-13 06:06:34,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:34,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:06:34,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:34,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:06:34,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:06:34,870 INFO L87 Difference]: Start difference. First operand 331 states and 449 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:06:35,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:35,574 INFO L93 Difference]: Finished difference Result 738 states and 1000 transitions. [2024-10-13 06:06:35,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:06:35,575 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 130 [2024-10-13 06:06:35,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:35,578 INFO L225 Difference]: With dead ends: 738 [2024-10-13 06:06:35,578 INFO L226 Difference]: Without dead ends: 408 [2024-10-13 06:06:35,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:06:35,581 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 227 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:35,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 497 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:06:35,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-10-13 06:06:35,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 331. [2024-10-13 06:06:35,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 301 states have (on average 1.308970099667774) internal successors, (394), 302 states have internal predecessors, (394), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:35,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 444 transitions. [2024-10-13 06:06:35,615 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 444 transitions. Word has length 130 [2024-10-13 06:06:35,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:35,616 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 444 transitions. [2024-10-13 06:06:35,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:06:35,616 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 444 transitions. [2024-10-13 06:06:35,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-13 06:06:35,618 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:35,619 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:35,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 06:06:35,619 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:35,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:35,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1834686767, now seen corresponding path program 1 times [2024-10-13 06:06:35,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:35,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081809205] [2024-10-13 06:06:35,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:35,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:36,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:37,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:37,010 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:37,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:37,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081809205] [2024-10-13 06:06:37,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081809205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:37,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:37,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-13 06:06:37,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939397594] [2024-10-13 06:06:37,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:37,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 06:06:37,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:37,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 06:06:37,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:06:37,013 INFO L87 Difference]: Start difference. First operand 331 states and 444 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:06:37,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:37,846 INFO L93 Difference]: Finished difference Result 736 states and 987 transitions. [2024-10-13 06:06:37,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:06:37,847 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 130 [2024-10-13 06:06:37,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:37,849 INFO L225 Difference]: With dead ends: 736 [2024-10-13 06:06:37,850 INFO L226 Difference]: Without dead ends: 406 [2024-10-13 06:06:37,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2024-10-13 06:06:37,853 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 213 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:37,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 827 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 06:06:37,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-10-13 06:06:37,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 314. [2024-10-13 06:06:37,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 284 states have (on average 1.306338028169014) internal successors, (371), 285 states have internal predecessors, (371), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:37,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 421 transitions. [2024-10-13 06:06:37,913 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 421 transitions. Word has length 130 [2024-10-13 06:06:37,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:37,913 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 421 transitions. [2024-10-13 06:06:37,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:06:37,914 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 421 transitions. [2024-10-13 06:06:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-13 06:06:37,916 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:37,916 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:37,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 06:06:37,917 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:37,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:37,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1514725283, now seen corresponding path program 1 times [2024-10-13 06:06:37,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:37,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114830954] [2024-10-13 06:06:37,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:37,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:40,375 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:40,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:40,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114830954] [2024-10-13 06:06:40,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114830954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:40,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:40,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 06:06:40,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27942634] [2024-10-13 06:06:40,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:40,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 06:06:40,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:40,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 06:06:40,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:06:40,378 INFO L87 Difference]: Start difference. First operand 314 states and 421 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:42,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:42,095 INFO L93 Difference]: Finished difference Result 756 states and 1009 transitions. [2024-10-13 06:06:42,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-13 06:06:42,096 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2024-10-13 06:06:42,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:42,101 INFO L225 Difference]: With dead ends: 756 [2024-10-13 06:06:42,101 INFO L226 Difference]: Without dead ends: 443 [2024-10-13 06:06:42,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2024-10-13 06:06:42,103 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 466 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:42,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 538 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 06:06:42,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-10-13 06:06:42,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 246. [2024-10-13 06:06:42,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 216 states have (on average 1.3009259259259258) internal successors, (281), 217 states have internal predecessors, (281), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:42,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 331 transitions. [2024-10-13 06:06:42,149 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 331 transitions. Word has length 130 [2024-10-13 06:06:42,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:42,151 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 331 transitions. [2024-10-13 06:06:42,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:42,152 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 331 transitions. [2024-10-13 06:06:42,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-13 06:06:42,154 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:42,154 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:42,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 06:06:42,155 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:42,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:42,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1658000260, now seen corresponding path program 1 times [2024-10-13 06:06:42,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:42,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672539043] [2024-10-13 06:06:42,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:42,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:43,420 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:43,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:43,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672539043] [2024-10-13 06:06:43,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672539043] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:43,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:43,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 06:06:43,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406199144] [2024-10-13 06:06:43,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:43,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:06:43,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:43,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:06:43,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:06:43,425 INFO L87 Difference]: Start difference. First operand 246 states and 331 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:44,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:44,031 INFO L93 Difference]: Finished difference Result 668 states and 894 transitions. [2024-10-13 06:06:44,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:06:44,032 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 133 [2024-10-13 06:06:44,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:44,035 INFO L225 Difference]: With dead ends: 668 [2024-10-13 06:06:44,035 INFO L226 Difference]: Without dead ends: 423 [2024-10-13 06:06:44,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:06:44,037 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 361 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:44,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 227 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:06:44,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-10-13 06:06:44,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 369. [2024-10-13 06:06:44,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 339 states have (on average 1.3008849557522124) internal successors, (441), 340 states have internal predecessors, (441), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:44,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 491 transitions. [2024-10-13 06:06:44,104 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 491 transitions. Word has length 133 [2024-10-13 06:06:44,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:44,105 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 491 transitions. [2024-10-13 06:06:44,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:44,105 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 491 transitions. [2024-10-13 06:06:44,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-13 06:06:44,107 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:44,107 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:44,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 06:06:44,107 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:44,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:44,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1452768421, now seen corresponding path program 1 times [2024-10-13 06:06:44,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:44,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871050486] [2024-10-13 06:06:44,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:44,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,369 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:44,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:44,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871050486] [2024-10-13 06:06:44,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871050486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:44,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:44,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:06:44,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150393119] [2024-10-13 06:06:44,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:44,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:06:44,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:44,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:06:44,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:06:44,372 INFO L87 Difference]: Start difference. First operand 369 states and 491 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:44,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:44,528 INFO L93 Difference]: Finished difference Result 765 states and 1018 transitions. [2024-10-13 06:06:44,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:06:44,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-10-13 06:06:44,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:44,532 INFO L225 Difference]: With dead ends: 765 [2024-10-13 06:06:44,533 INFO L226 Difference]: Without dead ends: 397 [2024-10-13 06:06:44,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:06:44,535 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 43 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:44,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 423 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:06:44,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-10-13 06:06:44,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 380. [2024-10-13 06:06:44,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 350 states have (on average 1.2971428571428572) internal successors, (454), 351 states have internal predecessors, (454), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:44,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 504 transitions. [2024-10-13 06:06:44,614 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 504 transitions. Word has length 133 [2024-10-13 06:06:44,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:44,614 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 504 transitions. [2024-10-13 06:06:44,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:44,615 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 504 transitions. [2024-10-13 06:06:44,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-13 06:06:44,616 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:44,617 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:44,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 06:06:44,618 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:44,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:44,618 INFO L85 PathProgramCache]: Analyzing trace with hash 643421795, now seen corresponding path program 1 times [2024-10-13 06:06:44,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:44,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32895670] [2024-10-13 06:06:44,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:44,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:44,839 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:44,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:44,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32895670] [2024-10-13 06:06:44,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32895670] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:44,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:44,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:06:44,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437811084] [2024-10-13 06:06:44,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:44,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:06:44,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:44,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:06:44,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:06:44,841 INFO L87 Difference]: Start difference. First operand 380 states and 504 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:44,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:44,920 INFO L93 Difference]: Finished difference Result 766 states and 1016 transitions. [2024-10-13 06:06:44,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:06:44,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-10-13 06:06:44,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:44,923 INFO L225 Difference]: With dead ends: 766 [2024-10-13 06:06:44,923 INFO L226 Difference]: Without dead ends: 387 [2024-10-13 06:06:44,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:06:44,925 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:44,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 559 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:06:44,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-10-13 06:06:44,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2024-10-13 06:06:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 357 states have (on average 1.2913165266106443) internal successors, (461), 358 states have internal predecessors, (461), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:44,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 511 transitions. [2024-10-13 06:06:44,973 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 511 transitions. Word has length 133 [2024-10-13 06:06:44,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:44,974 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 511 transitions. [2024-10-13 06:06:44,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:44,974 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 511 transitions. [2024-10-13 06:06:44,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-13 06:06:44,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:44,976 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:44,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 06:06:44,977 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:44,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:44,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1341429018, now seen corresponding path program 1 times [2024-10-13 06:06:44,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:44,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241293643] [2024-10-13 06:06:44,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:44,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:45,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:45,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241293643] [2024-10-13 06:06:45,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241293643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:45,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:45,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:06:45,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051284837] [2024-10-13 06:06:45,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:45,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:06:45,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:45,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:06:45,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:06:45,693 INFO L87 Difference]: Start difference. First operand 387 states and 511 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:46,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:46,343 INFO L93 Difference]: Finished difference Result 1061 states and 1392 transitions. [2024-10-13 06:06:46,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:06:46,344 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-10-13 06:06:46,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:46,348 INFO L225 Difference]: With dead ends: 1061 [2024-10-13 06:06:46,348 INFO L226 Difference]: Without dead ends: 675 [2024-10-13 06:06:46,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:06:46,353 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 273 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:46,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 556 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 06:06:46,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-10-13 06:06:46,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 450. [2024-10-13 06:06:46,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 420 states have (on average 1.292857142857143) internal successors, (543), 421 states have internal predecessors, (543), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:46,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 593 transitions. [2024-10-13 06:06:46,403 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 593 transitions. Word has length 134 [2024-10-13 06:06:46,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:46,404 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 593 transitions. [2024-10-13 06:06:46,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:46,404 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 593 transitions. [2024-10-13 06:06:46,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-13 06:06:46,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:46,408 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:46,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 06:06:46,408 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:46,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:46,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2144191652, now seen corresponding path program 1 times [2024-10-13 06:06:46,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:46,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956322810] [2024-10-13 06:06:46,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:46,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:48,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:48,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956322810] [2024-10-13 06:06:48,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956322810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:48,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:48,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-13 06:06:48,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461001700] [2024-10-13 06:06:48,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:48,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-13 06:06:48,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:48,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-13 06:06:48,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:06:48,492 INFO L87 Difference]: Start difference. First operand 450 states and 593 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:06:49,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:49,759 INFO L93 Difference]: Finished difference Result 1068 states and 1402 transitions. [2024-10-13 06:06:49,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 06:06:49,761 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 134 [2024-10-13 06:06:49,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:49,764 INFO L225 Difference]: With dead ends: 1068 [2024-10-13 06:06:49,764 INFO L226 Difference]: Without dead ends: 619 [2024-10-13 06:06:49,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2024-10-13 06:06:49,766 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 237 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:49,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1016 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 06:06:49,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-10-13 06:06:49,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 549. [2024-10-13 06:06:49,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 519 states have (on average 1.2947976878612717) internal successors, (672), 520 states have internal predecessors, (672), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:49,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 722 transitions. [2024-10-13 06:06:49,818 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 722 transitions. Word has length 134 [2024-10-13 06:06:49,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:49,818 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 722 transitions. [2024-10-13 06:06:49,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:06:49,819 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 722 transitions. [2024-10-13 06:06:49,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-13 06:06:49,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:49,822 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:49,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 06:06:49,822 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:49,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:49,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1403468632, now seen corresponding path program 1 times [2024-10-13 06:06:49,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:49,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708170345] [2024-10-13 06:06:49,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:49,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:51,170 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:51,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:51,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708170345] [2024-10-13 06:06:51,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708170345] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:51,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:51,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 06:06:51,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533274614] [2024-10-13 06:06:51,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:51,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 06:06:51,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:51,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 06:06:51,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:06:51,173 INFO L87 Difference]: Start difference. First operand 549 states and 722 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:52,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:52,553 INFO L93 Difference]: Finished difference Result 1307 states and 1709 transitions. [2024-10-13 06:06:52,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 06:06:52,554 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-10-13 06:06:52,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:52,559 INFO L225 Difference]: With dead ends: 1307 [2024-10-13 06:06:52,560 INFO L226 Difference]: Without dead ends: 759 [2024-10-13 06:06:52,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2024-10-13 06:06:52,563 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 377 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:52,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 903 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 06:06:52,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-10-13 06:06:52,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 592. [2024-10-13 06:06:52,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 562 states have (on average 1.291814946619217) internal successors, (726), 563 states have internal predecessors, (726), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:52,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 776 transitions. [2024-10-13 06:06:52,648 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 776 transitions. Word has length 134 [2024-10-13 06:06:52,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:52,649 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 776 transitions. [2024-10-13 06:06:52,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:52,650 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 776 transitions. [2024-10-13 06:06:52,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-13 06:06:52,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:52,652 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:52,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-13 06:06:52,653 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:52,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:52,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2082152038, now seen corresponding path program 1 times [2024-10-13 06:06:52,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:52,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165090611] [2024-10-13 06:06:52,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:52,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:53,300 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:53,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:53,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165090611] [2024-10-13 06:06:53,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165090611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:53,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:53,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:06:53,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948864060] [2024-10-13 06:06:53,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:53,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:06:53,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:53,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:06:53,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:06:53,303 INFO L87 Difference]: Start difference. First operand 592 states and 776 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:53,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:53,757 INFO L93 Difference]: Finished difference Result 1247 states and 1631 transitions. [2024-10-13 06:06:53,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:06:53,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-10-13 06:06:53,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:53,762 INFO L225 Difference]: With dead ends: 1247 [2024-10-13 06:06:53,762 INFO L226 Difference]: Without dead ends: 654 [2024-10-13 06:06:53,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:06:53,765 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 154 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:53,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 472 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:06:53,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-10-13 06:06:53,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 549. [2024-10-13 06:06:53,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 519 states have (on average 1.2909441233140655) internal successors, (670), 520 states have internal predecessors, (670), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:53,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 720 transitions. [2024-10-13 06:06:53,817 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 720 transitions. Word has length 134 [2024-10-13 06:06:53,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:53,818 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 720 transitions. [2024-10-13 06:06:53,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:53,818 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 720 transitions. [2024-10-13 06:06:53,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-13 06:06:53,820 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:53,820 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:53,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-13 06:06:53,820 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:53,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:53,821 INFO L85 PathProgramCache]: Analyzing trace with hash -980766806, now seen corresponding path program 1 times [2024-10-13 06:06:53,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:53,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183907953] [2024-10-13 06:06:53,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:53,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:54,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:54,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183907953] [2024-10-13 06:06:54,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183907953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:54,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:54,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-13 06:06:54,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245478001] [2024-10-13 06:06:54,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:54,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 06:06:54,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:54,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 06:06:54,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:06:54,945 INFO L87 Difference]: Start difference. First operand 549 states and 720 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:06:55,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:55,744 INFO L93 Difference]: Finished difference Result 1205 states and 1572 transitions. [2024-10-13 06:06:55,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 06:06:55,746 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 134 [2024-10-13 06:06:55,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:55,753 INFO L225 Difference]: With dead ends: 1205 [2024-10-13 06:06:55,754 INFO L226 Difference]: Without dead ends: 657 [2024-10-13 06:06:55,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2024-10-13 06:06:55,757 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 206 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:55,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 1003 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 06:06:55,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2024-10-13 06:06:55,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 549. [2024-10-13 06:06:55,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 519 states have (on average 1.2909441233140655) internal successors, (670), 520 states have internal predecessors, (670), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:55,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 720 transitions. [2024-10-13 06:06:55,840 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 720 transitions. Word has length 134 [2024-10-13 06:06:55,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:55,840 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 720 transitions. [2024-10-13 06:06:55,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:06:55,841 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 720 transitions. [2024-10-13 06:06:55,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-13 06:06:55,843 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:55,843 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:55,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-13 06:06:55,843 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:55,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:55,844 INFO L85 PathProgramCache]: Analyzing trace with hash 937109357, now seen corresponding path program 1 times [2024-10-13 06:06:55,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:55,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174524842] [2024-10-13 06:06:55,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:55,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:56,678 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:56,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:56,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174524842] [2024-10-13 06:06:56,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174524842] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:56,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:56,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 06:06:56,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748420049] [2024-10-13 06:06:56,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:56,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:06:56,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:56,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:06:56,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:06:56,681 INFO L87 Difference]: Start difference. First operand 549 states and 720 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:57,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:57,271 INFO L93 Difference]: Finished difference Result 1172 states and 1532 transitions. [2024-10-13 06:06:57,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 06:06:57,273 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-10-13 06:06:57,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:57,277 INFO L225 Difference]: With dead ends: 1172 [2024-10-13 06:06:57,277 INFO L226 Difference]: Without dead ends: 624 [2024-10-13 06:06:57,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2024-10-13 06:06:57,279 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 227 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:57,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 695 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:06:57,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-10-13 06:06:57,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 587. [2024-10-13 06:06:57,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 557 states have (on average 1.2908438061041292) internal successors, (719), 558 states have internal predecessors, (719), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:57,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 769 transitions. [2024-10-13 06:06:57,338 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 769 transitions. Word has length 134 [2024-10-13 06:06:57,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:57,338 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 769 transitions. [2024-10-13 06:06:57,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:06:57,339 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 769 transitions. [2024-10-13 06:06:57,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-13 06:06:57,341 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:57,341 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:57,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-13 06:06:57,341 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:57,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:57,342 INFO L85 PathProgramCache]: Analyzing trace with hash 999148971, now seen corresponding path program 1 times [2024-10-13 06:06:57,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:57,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87681409] [2024-10-13 06:06:57,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:57,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:57,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:57,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87681409] [2024-10-13 06:06:57,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87681409] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:57,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:57,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:06:57,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848423153] [2024-10-13 06:06:57,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:57,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:06:57,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:57,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:06:57,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:06:57,566 INFO L87 Difference]: Start difference. First operand 587 states and 769 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:57,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:57,685 INFO L93 Difference]: Finished difference Result 1238 states and 1611 transitions. [2024-10-13 06:06:57,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:06:57,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-10-13 06:06:57,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:57,690 INFO L225 Difference]: With dead ends: 1238 [2024-10-13 06:06:57,690 INFO L226 Difference]: Without dead ends: 651 [2024-10-13 06:06:57,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:06:57,692 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 118 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:57,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 320 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:06:57,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-10-13 06:06:57,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 547. [2024-10-13 06:06:57,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 517 states have (on average 1.2862669245647969) internal successors, (665), 518 states have internal predecessors, (665), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-10-13 06:06:57,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 715 transitions. [2024-10-13 06:06:57,747 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 715 transitions. Word has length 134 [2024-10-13 06:06:57,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:57,747 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 715 transitions. [2024-10-13 06:06:57,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:06:57,747 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 715 transitions. [2024-10-13 06:06:57,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-13 06:06:57,749 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:57,749 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:57,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-13 06:06:57,749 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:57,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:57,750 INFO L85 PathProgramCache]: Analyzing trace with hash -834259273, now seen corresponding path program 1 times [2024-10-13 06:06:57,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:57,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921898097] [2024-10-13 06:06:57,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:57,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:06:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:06:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:06:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:06:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:06:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:06:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:06:58,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:06:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:06:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:06:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:06:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:06:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:06:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:06:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:06:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:06:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:06:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:06:58,415 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:06:58,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:06:58,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921898097] [2024-10-13 06:06:58,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921898097] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:06:58,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:06:58,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:06:58,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95023946] [2024-10-13 06:06:58,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:06:58,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:06:58,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:06:58,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:06:58,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:06:58,419 INFO L87 Difference]: Start difference. First operand 547 states and 715 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-10-13 06:06:58,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:06:58,803 INFO L93 Difference]: Finished difference Result 774 states and 980 transitions. [2024-10-13 06:06:58,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:06:58,804 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 135 [2024-10-13 06:06:58,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:06:58,808 INFO L225 Difference]: With dead ends: 774 [2024-10-13 06:06:58,808 INFO L226 Difference]: Without dead ends: 772 [2024-10-13 06:06:58,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:06:58,809 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 280 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:06:58,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 719 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:06:58,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2024-10-13 06:06:58,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 769. [2024-10-13 06:06:58,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 715 states have (on average 1.2377622377622377) internal successors, (885), 718 states have internal predecessors, (885), 45 states have call successors, (45), 8 states have call predecessors, (45), 8 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-13 06:06:58,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 975 transitions. [2024-10-13 06:06:58,911 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 975 transitions. Word has length 135 [2024-10-13 06:06:58,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:06:58,912 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 975 transitions. [2024-10-13 06:06:58,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-10-13 06:06:58,912 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 975 transitions. [2024-10-13 06:06:58,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-13 06:06:58,914 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:06:58,914 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:58,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-13 06:06:58,915 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:06:58,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:06:58,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1543955261, now seen corresponding path program 1 times [2024-10-13 06:06:58,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:06:58,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522364240] [2024-10-13 06:06:58,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:06:58,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:06:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:07:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:07:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:07:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:07:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:07:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:07:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:07:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:07:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:07:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:07:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:07:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:07:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:07:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:07:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:07:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:07:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:07:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:01,707 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:07:01,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:07:01,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522364240] [2024-10-13 06:07:01,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522364240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:07:01,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:07:01,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 06:07:01,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649392444] [2024-10-13 06:07:01,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:07:01,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 06:07:01,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:07:01,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 06:07:01,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:07:01,710 INFO L87 Difference]: Start difference. First operand 769 states and 975 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:07:03,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:07:03,431 INFO L93 Difference]: Finished difference Result 1615 states and 2042 transitions. [2024-10-13 06:07:03,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:07:03,432 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-10-13 06:07:03,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:07:03,437 INFO L225 Difference]: With dead ends: 1615 [2024-10-13 06:07:03,437 INFO L226 Difference]: Without dead ends: 811 [2024-10-13 06:07:03,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2024-10-13 06:07:03,443 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 537 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:07:03,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 542 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 06:07:03,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2024-10-13 06:07:03,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 739. [2024-10-13 06:07:03,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 685 states have (on average 1.2218978102189781) internal successors, (837), 688 states have internal predecessors, (837), 45 states have call successors, (45), 8 states have call predecessors, (45), 8 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-13 06:07:03,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 927 transitions. [2024-10-13 06:07:03,536 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 927 transitions. Word has length 135 [2024-10-13 06:07:03,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:07:03,540 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 927 transitions. [2024-10-13 06:07:03,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:07:03,541 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 927 transitions. [2024-10-13 06:07:03,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-13 06:07:03,543 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:07:03,543 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:03,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-13 06:07:03,543 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:07:03,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:07:03,544 INFO L85 PathProgramCache]: Analyzing trace with hash 577804729, now seen corresponding path program 1 times [2024-10-13 06:07:03,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:07:03,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657538311] [2024-10-13 06:07:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:07:03,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:07:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:07:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:07:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:07:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:07:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:07:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:07:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:07:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:07:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:07:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:07:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:07:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:07:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:07:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:07:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:07:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:07:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:07:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:03,750 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:07:03,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:07:03,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657538311] [2024-10-13 06:07:03,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657538311] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:07:03,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:07:03,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:07:03,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321884452] [2024-10-13 06:07:03,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:07:03,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:07:03,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:07:03,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:07:03,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:07:03,752 INFO L87 Difference]: Start difference. First operand 739 states and 927 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:07:03,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:07:03,848 INFO L93 Difference]: Finished difference Result 1336 states and 1683 transitions. [2024-10-13 06:07:03,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:07:03,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-10-13 06:07:03,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:07:03,852 INFO L225 Difference]: With dead ends: 1336 [2024-10-13 06:07:03,852 INFO L226 Difference]: Without dead ends: 557 [2024-10-13 06:07:03,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:07:03,855 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 99 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:07:03,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 262 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:07:03,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-10-13 06:07:03,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 555. [2024-10-13 06:07:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 501 states have (on average 1.187624750499002) internal successors, (595), 504 states have internal predecessors, (595), 45 states have call successors, (45), 8 states have call predecessors, (45), 8 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-13 06:07:03,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 685 transitions. [2024-10-13 06:07:03,942 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 685 transitions. Word has length 136 [2024-10-13 06:07:03,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:07:03,942 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 685 transitions. [2024-10-13 06:07:03,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:07:03,942 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 685 transitions. [2024-10-13 06:07:03,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-13 06:07:03,944 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:07:03,944 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:03,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-13 06:07:03,944 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:07:03,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:07:03,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2068353727, now seen corresponding path program 1 times [2024-10-13 06:07:03,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:07:03,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842800295] [2024-10-13 06:07:03,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:07:03,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:07:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:07:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:07:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:07:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:07:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:07:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:07:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:07:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:07:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:07:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:07:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:07:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:07:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:07:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:07:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:07:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:07:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:07:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:07:04,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:07:04,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842800295] [2024-10-13 06:07:04,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842800295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:07:04,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:07:04,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:07:04,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765009877] [2024-10-13 06:07:04,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:07:04,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:07:04,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:07:04,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:07:04,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:07:04,165 INFO L87 Difference]: Start difference. First operand 555 states and 685 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:07:04,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:07:04,325 INFO L93 Difference]: Finished difference Result 1091 states and 1343 transitions. [2024-10-13 06:07:04,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:07:04,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-10-13 06:07:04,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:07:04,329 INFO L225 Difference]: With dead ends: 1091 [2024-10-13 06:07:04,329 INFO L226 Difference]: Without dead ends: 557 [2024-10-13 06:07:04,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:07:04,331 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 35 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:07:04,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 518 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:07:04,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-10-13 06:07:04,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 555. [2024-10-13 06:07:04,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 501 states have (on average 1.18562874251497) internal successors, (594), 504 states have internal predecessors, (594), 45 states have call successors, (45), 8 states have call predecessors, (45), 8 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-13 06:07:04,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 684 transitions. [2024-10-13 06:07:04,424 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 684 transitions. Word has length 136 [2024-10-13 06:07:04,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:07:04,425 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 684 transitions. [2024-10-13 06:07:04,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:07:04,425 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 684 transitions. [2024-10-13 06:07:04,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-13 06:07:04,427 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:07:04,427 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:04,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-13 06:07:04,427 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:07:04,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:07:04,428 INFO L85 PathProgramCache]: Analyzing trace with hash -313610148, now seen corresponding path program 1 times [2024-10-13 06:07:04,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:07:04,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951232009] [2024-10-13 06:07:04,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:07:04,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:07:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:07:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:07:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:07:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:07:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:07:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:07:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:07:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:07:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:07:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:07:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:07:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:07:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:07:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:07:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:07:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:07:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:07:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:04,635 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:07:04,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:07:04,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951232009] [2024-10-13 06:07:04,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951232009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:07:04,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:07:04,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:07:04,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619301315] [2024-10-13 06:07:04,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:07:04,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:07:04,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:07:04,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:07:04,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:07:04,637 INFO L87 Difference]: Start difference. First operand 555 states and 684 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:07:04,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:07:04,768 INFO L93 Difference]: Finished difference Result 1083 states and 1329 transitions. [2024-10-13 06:07:04,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:07:04,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-10-13 06:07:04,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:07:04,772 INFO L225 Difference]: With dead ends: 1083 [2024-10-13 06:07:04,773 INFO L226 Difference]: Without dead ends: 549 [2024-10-13 06:07:04,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:07:04,775 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 57 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:07:04,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 317 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:07:04,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-10-13 06:07:04,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 547. [2024-10-13 06:07:04,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 493 states have (on average 1.1764705882352942) internal successors, (580), 496 states have internal predecessors, (580), 45 states have call successors, (45), 8 states have call predecessors, (45), 8 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-13 06:07:04,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 670 transitions. [2024-10-13 06:07:04,854 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 670 transitions. Word has length 138 [2024-10-13 06:07:04,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:07:04,854 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 670 transitions. [2024-10-13 06:07:04,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:07:04,855 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 670 transitions. [2024-10-13 06:07:04,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-13 06:07:04,856 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:07:04,857 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:04,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-13 06:07:04,857 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:07:04,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:07:04,858 INFO L85 PathProgramCache]: Analyzing trace with hash 2010411356, now seen corresponding path program 1 times [2024-10-13 06:07:04,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:07:04,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344620799] [2024-10-13 06:07:04,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:07:04,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:07:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:07:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:07:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:07:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:07:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:07:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:07:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:07:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:07:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:07:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:07:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:07:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:07:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:07:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:07:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:07:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:07:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:07:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:05,379 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:07:05,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:07:05,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344620799] [2024-10-13 06:07:05,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344620799] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:07:05,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:07:05,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:07:05,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150298062] [2024-10-13 06:07:05,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:07:05,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:07:05,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:07:05,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:07:05,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:07:05,381 INFO L87 Difference]: Start difference. First operand 547 states and 670 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:07:05,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:07:05,782 INFO L93 Difference]: Finished difference Result 1130 states and 1375 transitions. [2024-10-13 06:07:05,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:07:05,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-10-13 06:07:05,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:07:05,787 INFO L225 Difference]: With dead ends: 1130 [2024-10-13 06:07:05,787 INFO L226 Difference]: Without dead ends: 604 [2024-10-13 06:07:05,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:07:05,789 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 143 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:07:05,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 441 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:07:05,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-10-13 06:07:05,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 504. [2024-10-13 06:07:05,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 450 states have (on average 1.1666666666666667) internal successors, (525), 453 states have internal predecessors, (525), 45 states have call successors, (45), 8 states have call predecessors, (45), 8 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-13 06:07:05,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 615 transitions. [2024-10-13 06:07:05,874 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 615 transitions. Word has length 138 [2024-10-13 06:07:05,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:07:05,875 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 615 transitions. [2024-10-13 06:07:05,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:07:05,875 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 615 transitions. [2024-10-13 06:07:05,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-13 06:07:05,877 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:07:05,877 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:05,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-13 06:07:05,878 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:07:05,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:07:05,878 INFO L85 PathProgramCache]: Analyzing trace with hash -301435502, now seen corresponding path program 1 times [2024-10-13 06:07:05,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:07:05,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898137555] [2024-10-13 06:07:05,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:07:05,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:07:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:07:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:07:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:07:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:07:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:07:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:07:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:07:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:07:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:07:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:07:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:07:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:07:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:07:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:07:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:07:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:07:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:07:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:07:06,673 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:07:06,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:07:06,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898137555] [2024-10-13 06:07:06,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898137555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:07:06,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:07:06,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:07:06,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554523390] [2024-10-13 06:07:06,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:07:06,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:07:06,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:07:06,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:07:06,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:07:06,676 INFO L87 Difference]: Start difference. First operand 504 states and 615 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:07:07,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:07:07,143 INFO L93 Difference]: Finished difference Result 616 states and 745 transitions. [2024-10-13 06:07:07,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:07:07,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-10-13 06:07:07,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:07:07,147 INFO L225 Difference]: With dead ends: 616 [2024-10-13 06:07:07,147 INFO L226 Difference]: Without dead ends: 614 [2024-10-13 06:07:07,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:07:07,148 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 125 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:07:07,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 890 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:07:07,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2024-10-13 06:07:07,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 611. [2024-10-13 06:07:07,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 542 states have (on average 1.1568265682656826) internal successors, (627), 546 states have internal predecessors, (627), 57 states have call successors, (57), 11 states have call predecessors, (57), 11 states have return successors, (57), 53 states have call predecessors, (57), 57 states have call successors, (57) [2024-10-13 06:07:07,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 741 transitions. [2024-10-13 06:07:07,247 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 741 transitions. Word has length 139 [2024-10-13 06:07:07,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:07:07,247 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 741 transitions. [2024-10-13 06:07:07,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:07:07,248 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 741 transitions. [2024-10-13 06:07:07,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-13 06:07:07,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:07:07,249 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:07,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-13 06:07:07,250 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:07:07,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:07:07,250 INFO L85 PathProgramCache]: Analyzing trace with hash -244177200, now seen corresponding path program 1 times [2024-10-13 06:07:07,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:07:07,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215166014] [2024-10-13 06:07:07,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:07:07,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:07:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat