./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 fca748b1 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-wip.dd.update-z3-fca748b-m [2024-11-20 08:33:57,352 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 08:33:57,411 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 08:33:57,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 08:33:57,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 08:33:57,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 08:33:57,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 08:33:57,450 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 08:33:57,451 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 08:33:57,451 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 08:33:57,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 08:33:57,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 08:33:57,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 08:33:57,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 08:33:57,462 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 08:33:57,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 08:33:57,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 08:33:57,463 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 08:33:57,463 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 08:33:57,463 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 08:33:57,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 08:33:57,467 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 08:33:57,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 08:33:57,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 08:33:57,468 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 08:33:57,468 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 08:33:57,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 08:33:57,468 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 08:33:57,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 08:33:57,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 08:33:57,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 08:33:57,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 08:33:57,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:33:57,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 08:33:57,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 08:33:57,470 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 08:33:57,470 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 08:33:57,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 08:33:57,470 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 08:33:57,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 08:33:57,470 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 08:33:57,471 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 08:33:57,472 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed18464d9ce97d1cc1f49d30a31556076037dce4eff04ef8ec5de65e115e002 [2024-11-20 08:33:57,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 08:33:57,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 08:33:57,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 08:33:57,678 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 08:33:57,678 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 08:33:57,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i [2024-11-20 08:33:59,126 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 08:33:59,281 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 08:33:59,281 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i [2024-11-20 08:33:59,290 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd3acedc9/5025ff7cd13d48958f2d287277d1eeaa/FLAG254bfa982 [2024-11-20 08:33:59,302 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd3acedc9/5025ff7cd13d48958f2d287277d1eeaa [2024-11-20 08:33:59,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 08:33:59,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 08:33:59,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 08:33:59,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 08:33:59,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 08:33:59,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@237ced15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59, skipping insertion in model container [2024-11-20 08:33:59,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,338 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 08:33:59,511 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i[917,930] [2024-11-20 08:33:59,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:33:59,589 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 08:33:59,600 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i[917,930] [2024-11-20 08:33:59,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:33:59,640 INFO L204 MainTranslator]: Completed translation [2024-11-20 08:33:59,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59 WrapperNode [2024-11-20 08:33:59,641 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 08:33:59,642 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 08:33:59,642 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 08:33:59,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 08:33:59,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,685 INFO L138 Inliner]: procedures = 26, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 445 [2024-11-20 08:33:59,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 08:33:59,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 08:33:59,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 08:33:59,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 08:33:59,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,699 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,715 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]. [2024-11-20 08:33:59,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 08:33:59,736 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 08:33:59,736 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 08:33:59,736 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 08:33:59,737 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59" (1/1) ... [2024-11-20 08:33:59,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:33:59,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:33:59,767 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) [2024-11-20 08:33:59,770 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 [2024-11-20 08:33:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 08:33:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 08:33:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 08:33:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 08:33:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 08:33:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 08:33:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 08:33:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 08:33:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 08:33:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 08:33:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 08:33:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 08:33:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 08:33:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 08:33:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 08:33:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 08:33:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 08:33:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 08:33:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 08:33:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 08:33:59,916 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 08:33:59,918 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 08:34:00,326 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-20 08:34:00,326 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 08:34:00,339 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 08:34:00,339 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 08:34:00,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:34:00 BoogieIcfgContainer [2024-11-20 08:34:00,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 08:34:00,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 08:34:00,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 08:34:00,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 08:34:00,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:33:59" (1/3) ... [2024-11-20 08:34:00,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2e0adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:34:00, skipping insertion in model container [2024-11-20 08:34:00,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:33:59" (2/3) ... [2024-11-20 08:34:00,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2e0adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:34:00, skipping insertion in model container [2024-11-20 08:34:00,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:34:00" (3/3) ... [2024-11-20 08:34:00,347 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-27.i [2024-11-20 08:34:00,360 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 08:34:00,361 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 08:34:00,422 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 08:34:00,428 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;@1c47748a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 08:34:00,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 08:34:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 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) [2024-11-20 08:34:00,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-20 08:34:00,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:00,447 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] [2024-11-20 08:34:00,448 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:00,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:00,453 INFO L85 PathProgramCache]: Analyzing trace with hash -599042020, now seen corresponding path program 1 times [2024-11-20 08:34:00,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:00,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921719112] [2024-11-20 08:34:00,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:00,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:00,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:00,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:00,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:00,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:00,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,095 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:01,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:01,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921719112] [2024-11-20 08:34:01,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921719112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:01,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:01,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 08:34:01,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714705338] [2024-11-20 08:34:01,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:01,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 08:34:01,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:01,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 08:34:01,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:34:01,127 INFO L87 Difference]: Start difference. First operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 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 24.5) internal successors, (49), 2 states have internal predecessors, (49), 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) [2024-11-20 08:34:01,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:01,156 INFO L93 Difference]: Finished difference Result 181 states and 283 transitions. [2024-11-20 08:34:01,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 08:34:01,160 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 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 131 [2024-11-20 08:34:01,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:01,166 INFO L225 Difference]: With dead ends: 181 [2024-11-20 08:34:01,166 INFO L226 Difference]: Without dead ends: 90 [2024-11-20 08:34:01,169 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 [2024-11-20 08:34:01,172 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:01,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:34:01,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-20 08:34:01,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-20 08:34:01,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 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) [2024-11-20 08:34:01,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-11-20 08:34:01,210 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 131 [2024-11-20 08:34:01,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:01,211 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-11-20 08:34:01,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 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) [2024-11-20 08:34:01,211 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-11-20 08:34:01,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-20 08:34:01,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:01,219 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] [2024-11-20 08:34:01,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 08:34:01,219 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:01,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:01,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1244012870, now seen corresponding path program 1 times [2024-11-20 08:34:01,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:01,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437494582] [2024-11-20 08:34:01,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:01,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:01,792 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:01,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:01,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437494582] [2024-11-20 08:34:01,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437494582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:01,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:01,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:34:01,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807777201] [2024-11-20 08:34:01,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:01,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:34:01,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:01,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:34:01,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:34:01,798 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-20 08:34:01,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:01,881 INFO L93 Difference]: Finished difference Result 224 states and 324 transitions. [2024-11-20 08:34:01,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:34:01,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 131 [2024-11-20 08:34:01,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:01,884 INFO L225 Difference]: With dead ends: 224 [2024-11-20 08:34:01,884 INFO L226 Difference]: Without dead ends: 137 [2024-11-20 08:34:01,885 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 [2024-11-20 08:34:01,886 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 135 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:01,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 345 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:34:01,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-20 08:34:01,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 94. [2024-11-20 08:34:01,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 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) [2024-11-20 08:34:01,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 135 transitions. [2024-11-20 08:34:01,896 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 135 transitions. Word has length 131 [2024-11-20 08:34:01,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:01,897 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 135 transitions. [2024-11-20 08:34:01,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-20 08:34:01,898 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 135 transitions. [2024-11-20 08:34:01,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-20 08:34:01,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:01,900 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] [2024-11-20 08:34:01,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 08:34:01,900 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:01,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:01,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1362010684, now seen corresponding path program 1 times [2024-11-20 08:34:01,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:01,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727617597] [2024-11-20 08:34:01,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:01,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,368 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:02,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:02,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727617597] [2024-11-20 08:34:02,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727617597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:02,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:02,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:34:02,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611219440] [2024-11-20 08:34:02,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:02,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:34:02,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:02,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:34:02,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:34:02,374 INFO L87 Difference]: Start difference. First operand 94 states and 135 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-20 08:34:02,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:02,510 INFO L93 Difference]: Finished difference Result 241 states and 348 transitions. [2024-11-20 08:34:02,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:34:02,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 131 [2024-11-20 08:34:02,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:02,512 INFO L225 Difference]: With dead ends: 241 [2024-11-20 08:34:02,512 INFO L226 Difference]: Without dead ends: 150 [2024-11-20 08:34:02,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:34:02,516 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 49 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:02,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 397 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:34:02,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-20 08:34:02,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2024-11-20 08:34:02,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 109 states have (on average 1.2935779816513762) internal successors, (141), 109 states have internal predecessors, (141), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:02,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 209 transitions. [2024-11-20 08:34:02,542 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 209 transitions. Word has length 131 [2024-11-20 08:34:02,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:02,543 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 209 transitions. [2024-11-20 08:34:02,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-20 08:34:02,543 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 209 transitions. [2024-11-20 08:34:02,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-20 08:34:02,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:02,546 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] [2024-11-20 08:34:02,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 08:34:02,546 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:02,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:02,547 INFO L85 PathProgramCache]: Analyzing trace with hash 561425464, now seen corresponding path program 1 times [2024-11-20 08:34:02,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:02,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275719692] [2024-11-20 08:34:02,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:02,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:02,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:02,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:02,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275719692] [2024-11-20 08:34:02,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275719692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:02,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:02,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:34:02,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970669146] [2024-11-20 08:34:02,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:02,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:34:02,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:02,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:34:02,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:34:02,850 INFO L87 Difference]: Start difference. First operand 146 states and 209 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-20 08:34:02,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:02,912 INFO L93 Difference]: Finished difference Result 288 states and 413 transitions. [2024-11-20 08:34:02,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:34:02,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 131 [2024-11-20 08:34:02,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:02,914 INFO L225 Difference]: With dead ends: 288 [2024-11-20 08:34:02,914 INFO L226 Difference]: Without dead ends: 197 [2024-11-20 08:34:02,915 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 [2024-11-20 08:34:02,915 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 118 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:02,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 463 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:34:02,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-20 08:34:02,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 164. [2024-11-20 08:34:02,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 127 states have (on average 1.2992125984251968) internal successors, (165), 127 states have internal predecessors, (165), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:02,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 233 transitions. [2024-11-20 08:34:02,942 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 233 transitions. Word has length 131 [2024-11-20 08:34:02,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:02,942 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 233 transitions. [2024-11-20 08:34:02,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-20 08:34:02,943 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 233 transitions. [2024-11-20 08:34:02,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-20 08:34:02,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:02,947 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] [2024-11-20 08:34:02,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 08:34:02,948 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:02,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:02,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1871022988, now seen corresponding path program 1 times [2024-11-20 08:34:02,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:02,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45385763] [2024-11-20 08:34:02,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:02,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:03,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:03,731 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:03,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:03,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45385763] [2024-11-20 08:34:03,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45385763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:03,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:03,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:34:03,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780984753] [2024-11-20 08:34:03,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:03,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:34:03,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:03,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:34:03,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:34:03,733 INFO L87 Difference]: Start difference. First operand 164 states and 233 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2024-11-20 08:34:04,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:04,161 INFO L93 Difference]: Finished difference Result 323 states and 459 transitions. [2024-11-20 08:34:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:34:04,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 132 [2024-11-20 08:34:04,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:04,164 INFO L225 Difference]: With dead ends: 323 [2024-11-20 08:34:04,164 INFO L226 Difference]: Without dead ends: 219 [2024-11-20 08:34:04,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:34:04,165 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 159 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:04,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 564 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:34:04,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-20 08:34:04,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2024-11-20 08:34:04,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 174 states have (on average 1.3218390804597702) internal successors, (230), 175 states have internal predecessors, (230), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-20 08:34:04,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 306 transitions. [2024-11-20 08:34:04,188 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 306 transitions. Word has length 132 [2024-11-20 08:34:04,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:04,188 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 306 transitions. [2024-11-20 08:34:04,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) [2024-11-20 08:34:04,189 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 306 transitions. [2024-11-20 08:34:04,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-20 08:34:04,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:04,190 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] [2024-11-20 08:34:04,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 08:34:04,190 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:04,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:04,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1080888233, now seen corresponding path program 1 times [2024-11-20 08:34:04,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:04,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983422817] [2024-11-20 08:34:04,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:04,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:04,725 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:04,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:04,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983422817] [2024-11-20 08:34:04,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983422817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:04,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:04,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:34:04,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440935134] [2024-11-20 08:34:04,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:04,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:34:04,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:04,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:34:04,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:34:04,728 INFO L87 Difference]: Start difference. First operand 216 states and 306 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2024-11-20 08:34:04,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:04,904 INFO L93 Difference]: Finished difference Result 526 states and 750 transitions. [2024-11-20 08:34:04,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:34:04,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 133 [2024-11-20 08:34:04,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:04,907 INFO L225 Difference]: With dead ends: 526 [2024-11-20 08:34:04,908 INFO L226 Difference]: Without dead ends: 370 [2024-11-20 08:34:04,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:34:04,909 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 174 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:04,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 463 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:34:04,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-20 08:34:04,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 364. [2024-11-20 08:34:04,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 299 states have (on average 1.3377926421404682) internal successors, (400), 301 states have internal predecessors, (400), 59 states have call successors, (59), 5 states have call predecessors, (59), 5 states have return successors, (59), 57 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-20 08:34:04,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 518 transitions. [2024-11-20 08:34:04,945 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 518 transitions. Word has length 133 [2024-11-20 08:34:04,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:04,946 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 518 transitions. [2024-11-20 08:34:04,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2024-11-20 08:34:04,946 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 518 transitions. [2024-11-20 08:34:04,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:34:04,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:04,947 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] [2024-11-20 08:34:04,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 08:34:04,948 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:04,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:04,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2089824625, now seen corresponding path program 1 times [2024-11-20 08:34:04,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:04,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725895653] [2024-11-20 08:34:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:04,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,279 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:05,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:05,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725895653] [2024-11-20 08:34:05,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725895653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:05,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:05,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:34:05,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738043326] [2024-11-20 08:34:05,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:05,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:34:05,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:05,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:34:05,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:34:05,281 INFO L87 Difference]: Start difference. First operand 364 states and 518 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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) [2024-11-20 08:34:05,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:05,509 INFO L93 Difference]: Finished difference Result 628 states and 894 transitions. [2024-11-20 08:34:05,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:34:05,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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 [2024-11-20 08:34:05,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:05,512 INFO L225 Difference]: With dead ends: 628 [2024-11-20 08:34:05,513 INFO L226 Difference]: Without dead ends: 313 [2024-11-20 08:34:05,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:34:05,514 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 170 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:05,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 425 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:34:05,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-20 08:34:05,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 253. [2024-11-20 08:34:05,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 211 states have (on average 1.3412322274881516) internal successors, (283), 212 states have internal predecessors, (283), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-20 08:34:05,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 359 transitions. [2024-11-20 08:34:05,537 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 359 transitions. Word has length 134 [2024-11-20 08:34:05,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:05,537 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 359 transitions. [2024-11-20 08:34:05,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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) [2024-11-20 08:34:05,537 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 359 transitions. [2024-11-20 08:34:05,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-20 08:34:05,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:05,538 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] [2024-11-20 08:34:05,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 08:34:05,538 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:05,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:05,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1530075279, now seen corresponding path program 1 times [2024-11-20 08:34:05,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:05,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636666152] [2024-11-20 08:34:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:05,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:05,886 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:05,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:05,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636666152] [2024-11-20 08:34:05,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636666152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:05,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:05,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:34:05,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895756504] [2024-11-20 08:34:05,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:05,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:34:05,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:05,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:34:05,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:34:05,888 INFO L87 Difference]: Start difference. First operand 253 states and 359 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 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) [2024-11-20 08:34:06,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:06,123 INFO L93 Difference]: Finished difference Result 416 states and 583 transitions. [2024-11-20 08:34:06,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:34:06,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 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 [2024-11-20 08:34:06,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:06,125 INFO L225 Difference]: With dead ends: 416 [2024-11-20 08:34:06,125 INFO L226 Difference]: Without dead ends: 264 [2024-11-20 08:34:06,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:34:06,126 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 291 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:06,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 394 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:34:06,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-20 08:34:06,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 226. [2024-11-20 08:34:06,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 187 states have (on average 1.320855614973262) internal successors, (247), 187 states have internal predecessors, (247), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:06,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 315 transitions. [2024-11-20 08:34:06,141 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 315 transitions. Word has length 134 [2024-11-20 08:34:06,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:06,142 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 315 transitions. [2024-11-20 08:34:06,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 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) [2024-11-20 08:34:06,142 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 315 transitions. [2024-11-20 08:34:06,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:34:06,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:06,143 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] [2024-11-20 08:34:06,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 08:34:06,143 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:06,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:06,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1315430834, now seen corresponding path program 1 times [2024-11-20 08:34:06,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:06,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257976766] [2024-11-20 08:34:06,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:06,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:07,179 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:07,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:07,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257976766] [2024-11-20 08:34:07,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257976766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:07,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:07,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 08:34:07,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569845436] [2024-11-20 08:34:07,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:07,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 08:34:07,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:07,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 08:34:07,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-20 08:34:07,181 INFO L87 Difference]: Start difference. First operand 226 states and 315 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 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) [2024-11-20 08:34:07,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:07,954 INFO L93 Difference]: Finished difference Result 563 states and 782 transitions. [2024-11-20 08:34:07,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:34:07,955 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 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 135 [2024-11-20 08:34:07,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:07,956 INFO L225 Difference]: With dead ends: 563 [2024-11-20 08:34:07,956 INFO L226 Difference]: Without dead ends: 340 [2024-11-20 08:34:07,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-11-20 08:34:07,957 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 313 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:07,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 854 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:34:07,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-20 08:34:07,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 258. [2024-11-20 08:34:07,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 219 states have (on average 1.3196347031963471) internal successors, (289), 219 states have internal predecessors, (289), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:07,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 357 transitions. [2024-11-20 08:34:07,977 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 357 transitions. Word has length 135 [2024-11-20 08:34:07,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:07,977 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 357 transitions. [2024-11-20 08:34:07,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 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) [2024-11-20 08:34:07,978 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 357 transitions. [2024-11-20 08:34:07,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:34:07,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:07,979 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] [2024-11-20 08:34:07,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 08:34:07,979 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:07,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:07,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1573596272, now seen corresponding path program 1 times [2024-11-20 08:34:07,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:07,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000547107] [2024-11-20 08:34:07,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:07,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:08,801 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:08,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:08,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000547107] [2024-11-20 08:34:08,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000547107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:08,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:08,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:34:08,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767546284] [2024-11-20 08:34:08,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:08,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:34:08,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:08,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:34:08,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:34:08,803 INFO L87 Difference]: Start difference. First operand 258 states and 357 transitions. Second operand has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 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) [2024-11-20 08:34:09,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:09,282 INFO L93 Difference]: Finished difference Result 589 states and 814 transitions. [2024-11-20 08:34:09,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:34:09,282 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 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 135 [2024-11-20 08:34:09,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:09,284 INFO L225 Difference]: With dead ends: 589 [2024-11-20 08:34:09,284 INFO L226 Difference]: Without dead ends: 334 [2024-11-20 08:34:09,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:34:09,285 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 165 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:09,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 632 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:34:09,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-20 08:34:09,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 258. [2024-11-20 08:34:09,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 219 states have (on average 1.3105022831050228) internal successors, (287), 219 states have internal predecessors, (287), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:09,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 355 transitions. [2024-11-20 08:34:09,334 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 355 transitions. Word has length 135 [2024-11-20 08:34:09,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:09,334 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 355 transitions. [2024-11-20 08:34:09,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 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) [2024-11-20 08:34:09,334 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 355 transitions. [2024-11-20 08:34:09,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:34:09,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:09,335 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] [2024-11-20 08:34:09,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 08:34:09,336 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:09,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:09,336 INFO L85 PathProgramCache]: Analyzing trace with hash 497782384, now seen corresponding path program 1 times [2024-11-20 08:34:09,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:09,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814244383] [2024-11-20 08:34:09,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:09,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:10,276 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:10,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:10,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814244383] [2024-11-20 08:34:10,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814244383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:10,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:10,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 08:34:10,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437936670] [2024-11-20 08:34:10,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:10,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 08:34:10,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:10,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 08:34:10,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:34:10,278 INFO L87 Difference]: Start difference. First operand 258 states and 355 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 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) [2024-11-20 08:34:10,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:10,805 INFO L93 Difference]: Finished difference Result 587 states and 808 transitions. [2024-11-20 08:34:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:34:10,806 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 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 [2024-11-20 08:34:10,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:10,807 INFO L225 Difference]: With dead ends: 587 [2024-11-20 08:34:10,807 INFO L226 Difference]: Without dead ends: 332 [2024-11-20 08:34:10,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-20 08:34:10,808 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 361 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:10,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 532 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:34:10,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-20 08:34:10,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 258. [2024-11-20 08:34:10,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 219 states have (on average 1.3013698630136987) internal successors, (285), 219 states have internal predecessors, (285), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:10,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 353 transitions. [2024-11-20 08:34:10,827 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 353 transitions. Word has length 135 [2024-11-20 08:34:10,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:10,828 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 353 transitions. [2024-11-20 08:34:10,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 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) [2024-11-20 08:34:10,828 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 353 transitions. [2024-11-20 08:34:10,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:34:10,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:10,829 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] [2024-11-20 08:34:10,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 08:34:10,829 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:10,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:10,830 INFO L85 PathProgramCache]: Analyzing trace with hash 755947822, now seen corresponding path program 1 times [2024-11-20 08:34:10,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:10,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755342705] [2024-11-20 08:34:10,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:10,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:11,807 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:11,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:11,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755342705] [2024-11-20 08:34:11,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755342705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:11,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:11,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 08:34:11,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690187557] [2024-11-20 08:34:11,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:11,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 08:34:11,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:11,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 08:34:11,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-20 08:34:11,809 INFO L87 Difference]: Start difference. First operand 258 states and 353 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 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) [2024-11-20 08:34:12,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:12,459 INFO L93 Difference]: Finished difference Result 587 states and 804 transitions. [2024-11-20 08:34:12,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:34:12,460 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 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 [2024-11-20 08:34:12,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:12,462 INFO L225 Difference]: With dead ends: 587 [2024-11-20 08:34:12,462 INFO L226 Difference]: Without dead ends: 332 [2024-11-20 08:34:12,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2024-11-20 08:34:12,463 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 156 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:12,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1087 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:34:12,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-20 08:34:12,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 252. [2024-11-20 08:34:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 213 states have (on average 1.300469483568075) internal successors, (277), 213 states have internal predecessors, (277), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:12,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 345 transitions. [2024-11-20 08:34:12,485 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 345 transitions. Word has length 135 [2024-11-20 08:34:12,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:12,485 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 345 transitions. [2024-11-20 08:34:12,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 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) [2024-11-20 08:34:12,486 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 345 transitions. [2024-11-20 08:34:12,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:34:12,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:12,487 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] [2024-11-20 08:34:12,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 08:34:12,487 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:12,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:12,488 INFO L85 PathProgramCache]: Analyzing trace with hash -697675202, now seen corresponding path program 1 times [2024-11-20 08:34:12,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:12,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124727376] [2024-11-20 08:34:12,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:12,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:12,667 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:12,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:12,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124727376] [2024-11-20 08:34:12,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124727376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:12,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:12,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:34:12,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248602473] [2024-11-20 08:34:12,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:12,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:34:12,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:12,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:34:12,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:34:12,670 INFO L87 Difference]: Start difference. First operand 252 states and 345 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2024-11-20 08:34:12,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:12,733 INFO L93 Difference]: Finished difference Result 608 states and 829 transitions. [2024-11-20 08:34:12,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:34:12,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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 135 [2024-11-20 08:34:12,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:12,735 INFO L225 Difference]: With dead ends: 608 [2024-11-20 08:34:12,736 INFO L226 Difference]: Without dead ends: 359 [2024-11-20 08:34:12,736 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 [2024-11-20 08:34:12,737 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 54 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:12,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 465 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:34:12,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-20 08:34:12,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 311. [2024-11-20 08:34:12,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 272 states have (on average 1.286764705882353) internal successors, (350), 272 states have internal predecessors, (350), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:12,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 418 transitions. [2024-11-20 08:34:12,763 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 418 transitions. Word has length 135 [2024-11-20 08:34:12,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:12,763 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 418 transitions. [2024-11-20 08:34:12,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2024-11-20 08:34:12,763 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 418 transitions. [2024-11-20 08:34:12,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:34:12,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:12,765 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] [2024-11-20 08:34:12,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 08:34:12,766 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:12,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:12,766 INFO L85 PathProgramCache]: Analyzing trace with hash 3389376, now seen corresponding path program 1 times [2024-11-20 08:34:12,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:12,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808130639] [2024-11-20 08:34:12,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:12,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:13,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:13,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:13,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:13,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:13,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:13,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:13,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:13,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:13,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:13,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:14,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:14,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:14,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:14,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:14,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:14,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:14,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:14,050 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:14,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:14,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808130639] [2024-11-20 08:34:14,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808130639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:14,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:14,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 08:34:14,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839319442] [2024-11-20 08:34:14,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:14,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 08:34:14,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:14,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 08:34:14,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:34:14,052 INFO L87 Difference]: Start difference. First operand 311 states and 418 transitions. Second operand has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 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) [2024-11-20 08:34:14,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:14,948 INFO L93 Difference]: Finished difference Result 762 states and 1024 transitions. [2024-11-20 08:34:14,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 08:34:14,948 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 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 135 [2024-11-20 08:34:14,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:14,950 INFO L225 Difference]: With dead ends: 762 [2024-11-20 08:34:14,950 INFO L226 Difference]: Without dead ends: 454 [2024-11-20 08:34:14,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2024-11-20 08:34:14,951 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 199 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:14,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 720 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:34:14,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-20 08:34:14,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 384. [2024-11-20 08:34:14,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 345 states have (on average 1.2927536231884058) internal successors, (446), 345 states have internal predecessors, (446), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:14,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 514 transitions. [2024-11-20 08:34:14,980 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 514 transitions. Word has length 135 [2024-11-20 08:34:14,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:14,982 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 514 transitions. [2024-11-20 08:34:14,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 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) [2024-11-20 08:34:14,982 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 514 transitions. [2024-11-20 08:34:14,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-20 08:34:14,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:14,983 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] [2024-11-20 08:34:14,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 08:34:14,983 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:14,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:14,984 INFO L85 PathProgramCache]: Analyzing trace with hash 65428990, now seen corresponding path program 1 times [2024-11-20 08:34:14,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:14,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961927250] [2024-11-20 08:34:14,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:14,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,129 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:15,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:15,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961927250] [2024-11-20 08:34:15,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961927250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:15,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:15,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:34:15,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136064878] [2024-11-20 08:34:15,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:15,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:34:15,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:15,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:34:15,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:34:15,130 INFO L87 Difference]: Start difference. First operand 384 states and 514 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2024-11-20 08:34:15,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:15,207 INFO L93 Difference]: Finished difference Result 805 states and 1078 transitions. [2024-11-20 08:34:15,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:34:15,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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 135 [2024-11-20 08:34:15,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:15,210 INFO L225 Difference]: With dead ends: 805 [2024-11-20 08:34:15,210 INFO L226 Difference]: Without dead ends: 424 [2024-11-20 08:34:15,211 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 [2024-11-20 08:34:15,211 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 94 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:15,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 458 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:34:15,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-20 08:34:15,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 378. [2024-11-20 08:34:15,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 339 states have (on average 1.2861356932153392) internal successors, (436), 339 states have internal predecessors, (436), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:15,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 504 transitions. [2024-11-20 08:34:15,237 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 504 transitions. Word has length 135 [2024-11-20 08:34:15,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:15,237 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 504 transitions. [2024-11-20 08:34:15,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2024-11-20 08:34:15,237 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 504 transitions. [2024-11-20 08:34:15,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:34:15,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:15,238 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] [2024-11-20 08:34:15,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 08:34:15,239 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:15,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:15,239 INFO L85 PathProgramCache]: Analyzing trace with hash -568417833, now seen corresponding path program 1 times [2024-11-20 08:34:15,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:15,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035336946] [2024-11-20 08:34:15,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:15,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:15,984 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:15,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:15,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035336946] [2024-11-20 08:34:15,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035336946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:15,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:15,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 08:34:15,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206743956] [2024-11-20 08:34:15,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:15,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 08:34:15,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:15,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 08:34:15,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:34:15,987 INFO L87 Difference]: Start difference. First operand 378 states and 504 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2024-11-20 08:34:16,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:16,748 INFO L93 Difference]: Finished difference Result 799 states and 1058 transitions. [2024-11-20 08:34:16,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 08:34:16,749 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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 139 [2024-11-20 08:34:16,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:16,752 INFO L225 Difference]: With dead ends: 799 [2024-11-20 08:34:16,753 INFO L226 Difference]: Without dead ends: 594 [2024-11-20 08:34:16,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-20 08:34:16,754 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 421 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:16,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 641 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:34:16,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-11-20 08:34:16,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 502. [2024-11-20 08:34:16,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 463 states have (on average 1.2915766738660908) internal successors, (598), 463 states have internal predecessors, (598), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:16,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 666 transitions. [2024-11-20 08:34:16,786 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 666 transitions. Word has length 139 [2024-11-20 08:34:16,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:16,786 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 666 transitions. [2024-11-20 08:34:16,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2024-11-20 08:34:16,786 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 666 transitions. [2024-11-20 08:34:16,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:34:16,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:16,788 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] [2024-11-20 08:34:16,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 08:34:16,788 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:16,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:16,788 INFO L85 PathProgramCache]: Analyzing trace with hash 111640537, now seen corresponding path program 1 times [2024-11-20 08:34:16,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:16,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222481037] [2024-11-20 08:34:16,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:16,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:17,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:17,747 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:17,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:17,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222481037] [2024-11-20 08:34:17,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222481037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:17,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:17,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 08:34:17,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944115430] [2024-11-20 08:34:17,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:17,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 08:34:17,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:17,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 08:34:17,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-20 08:34:17,749 INFO L87 Difference]: Start difference. First operand 502 states and 666 transitions. Second operand has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 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) [2024-11-20 08:34:18,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:18,480 INFO L93 Difference]: Finished difference Result 865 states and 1147 transitions. [2024-11-20 08:34:18,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:34:18,481 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 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 139 [2024-11-20 08:34:18,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:18,484 INFO L225 Difference]: With dead ends: 865 [2024-11-20 08:34:18,484 INFO L226 Difference]: Without dead ends: 536 [2024-11-20 08:34:18,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-11-20 08:34:18,485 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 253 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:18,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 850 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:34:18,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-20 08:34:18,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 506. [2024-11-20 08:34:18,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 467 states have (on average 1.2890792291220556) internal successors, (602), 467 states have internal predecessors, (602), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:18,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 670 transitions. [2024-11-20 08:34:18,513 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 670 transitions. Word has length 139 [2024-11-20 08:34:18,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:18,513 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 670 transitions. [2024-11-20 08:34:18,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 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) [2024-11-20 08:34:18,514 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 670 transitions. [2024-11-20 08:34:18,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:34:18,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:18,515 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] [2024-11-20 08:34:18,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 08:34:18,515 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:18,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:18,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1376130766, now seen corresponding path program 1 times [2024-11-20 08:34:18,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:18,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938794218] [2024-11-20 08:34:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:18,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,671 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:18,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:18,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938794218] [2024-11-20 08:34:18,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938794218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:18,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:18,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:34:18,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098594948] [2024-11-20 08:34:18,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:18,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:34:18,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:18,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:34:18,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:34:18,673 INFO L87 Difference]: Start difference. First operand 506 states and 670 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 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) [2024-11-20 08:34:18,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:18,760 INFO L93 Difference]: Finished difference Result 1067 states and 1414 transitions. [2024-11-20 08:34:18,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:34:18,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 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 [2024-11-20 08:34:18,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:18,763 INFO L225 Difference]: With dead ends: 1067 [2024-11-20 08:34:18,763 INFO L226 Difference]: Without dead ends: 564 [2024-11-20 08:34:18,764 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 [2024-11-20 08:34:18,764 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:18,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 461 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:34:18,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-11-20 08:34:18,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 523. [2024-11-20 08:34:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 484 states have (on average 1.2913223140495869) internal successors, (625), 484 states have internal predecessors, (625), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:18,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 693 transitions. [2024-11-20 08:34:18,792 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 693 transitions. Word has length 139 [2024-11-20 08:34:18,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:18,792 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 693 transitions. [2024-11-20 08:34:18,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 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) [2024-11-20 08:34:18,793 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 693 transitions. [2024-11-20 08:34:18,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:34:18,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:18,794 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] [2024-11-20 08:34:18,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 08:34:18,794 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:18,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:18,794 INFO L85 PathProgramCache]: Analyzing trace with hash 2056189136, now seen corresponding path program 1 times [2024-11-20 08:34:18,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:18,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966240015] [2024-11-20 08:34:18,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:18,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:18,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:18,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966240015] [2024-11-20 08:34:18,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966240015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:18,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:18,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:34:18,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498391629] [2024-11-20 08:34:18,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:18,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:34:18,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:18,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:34:18,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:34:18,906 INFO L87 Difference]: Start difference. First operand 523 states and 693 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 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) [2024-11-20 08:34:18,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:18,951 INFO L93 Difference]: Finished difference Result 1051 states and 1393 transitions. [2024-11-20 08:34:18,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:34:18,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 [2024-11-20 08:34:18,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:18,954 INFO L225 Difference]: With dead ends: 1051 [2024-11-20 08:34:18,954 INFO L226 Difference]: Without dead ends: 531 [2024-11-20 08:34:18,955 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 [2024-11-20 08:34:18,955 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:18,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:34:18,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-20 08:34:18,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 528. [2024-11-20 08:34:18,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 489 states have (on average 1.2883435582822085) internal successors, (630), 489 states have internal predecessors, (630), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:18,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 698 transitions. [2024-11-20 08:34:18,990 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 698 transitions. Word has length 139 [2024-11-20 08:34:18,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:18,990 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 698 transitions. [2024-11-20 08:34:18,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2024-11-20 08:34:18,991 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 698 transitions. [2024-11-20 08:34:18,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:34:18,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:18,992 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] [2024-11-20 08:34:18,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 08:34:18,992 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:18,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:18,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1803321429, now seen corresponding path program 1 times [2024-11-20 08:34:18,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:18,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353190224] [2024-11-20 08:34:18,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:18,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:19,550 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:19,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:19,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353190224] [2024-11-20 08:34:19,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353190224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:19,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:19,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:34:19,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439638791] [2024-11-20 08:34:19,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:19,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:34:19,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:19,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:34:19,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:34:19,552 INFO L87 Difference]: Start difference. First operand 528 states and 698 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 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) [2024-11-20 08:34:20,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:20,160 INFO L93 Difference]: Finished difference Result 1063 states and 1399 transitions. [2024-11-20 08:34:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:34:20,161 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 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 [2024-11-20 08:34:20,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:20,164 INFO L225 Difference]: With dead ends: 1063 [2024-11-20 08:34:20,164 INFO L226 Difference]: Without dead ends: 718 [2024-11-20 08:34:20,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-20 08:34:20,166 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 246 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:20,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 850 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:34:20,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-20 08:34:20,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 582. [2024-11-20 08:34:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 543 states have (on average 1.292817679558011) internal successors, (702), 543 states have internal predecessors, (702), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:20,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 770 transitions. [2024-11-20 08:34:20,200 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 770 transitions. Word has length 139 [2024-11-20 08:34:20,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:20,200 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 770 transitions. [2024-11-20 08:34:20,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 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) [2024-11-20 08:34:20,200 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 770 transitions. [2024-11-20 08:34:20,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:34:20,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:20,202 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] [2024-11-20 08:34:20,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 08:34:20,203 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:20,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:20,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1811587497, now seen corresponding path program 1 times [2024-11-20 08:34:20,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:20,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293694199] [2024-11-20 08:34:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:20,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:20,583 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:20,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:20,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293694199] [2024-11-20 08:34:20,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293694199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:20,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:20,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:34:20,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311628757] [2024-11-20 08:34:20,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:20,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:34:20,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:20,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:34:20,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:34:20,588 INFO L87 Difference]: Start difference. First operand 582 states and 770 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 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) [2024-11-20 08:34:20,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:20,890 INFO L93 Difference]: Finished difference Result 1126 states and 1486 transitions. [2024-11-20 08:34:20,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:34:20,891 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 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 [2024-11-20 08:34:20,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:20,894 INFO L225 Difference]: With dead ends: 1126 [2024-11-20 08:34:20,894 INFO L226 Difference]: Without dead ends: 726 [2024-11-20 08:34:20,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:34:20,896 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 150 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:20,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 521 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:34:20,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-20 08:34:20,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 690. [2024-11-20 08:34:20,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 651 states have (on average 1.2903225806451613) internal successors, (840), 651 states have internal predecessors, (840), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:20,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 908 transitions. [2024-11-20 08:34:20,932 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 908 transitions. Word has length 139 [2024-11-20 08:34:20,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:20,933 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 908 transitions. [2024-11-20 08:34:20,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 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) [2024-11-20 08:34:20,933 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 908 transitions. [2024-11-20 08:34:20,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:34:20,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:20,934 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] [2024-11-20 08:34:20,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 08:34:20,934 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:20,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash 2022176147, now seen corresponding path program 1 times [2024-11-20 08:34:20,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:20,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915240046] [2024-11-20 08:34:20,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:20,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:21,582 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:21,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:21,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915240046] [2024-11-20 08:34:21,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915240046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:21,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:21,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 08:34:21,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523418794] [2024-11-20 08:34:21,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:21,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 08:34:21,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:21,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 08:34:21,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:34:21,585 INFO L87 Difference]: Start difference. First operand 690 states and 908 transitions. Second operand has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 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) [2024-11-20 08:34:22,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:22,272 INFO L93 Difference]: Finished difference Result 1236 states and 1624 transitions. [2024-11-20 08:34:22,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:34:22,273 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 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 139 [2024-11-20 08:34:22,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:22,276 INFO L225 Difference]: With dead ends: 1236 [2024-11-20 08:34:22,276 INFO L226 Difference]: Without dead ends: 729 [2024-11-20 08:34:22,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2024-11-20 08:34:22,280 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 217 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:22,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 1151 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:34:22,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-20 08:34:22,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 690. [2024-11-20 08:34:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 651 states have (on average 1.2903225806451613) internal successors, (840), 651 states have internal predecessors, (840), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:22,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 908 transitions. [2024-11-20 08:34:22,319 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 908 transitions. Word has length 139 [2024-11-20 08:34:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:22,319 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 908 transitions. [2024-11-20 08:34:22,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 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) [2024-11-20 08:34:22,320 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 908 transitions. [2024-11-20 08:34:22,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:34:22,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:22,321 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] [2024-11-20 08:34:22,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 08:34:22,321 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:22,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:22,321 INFO L85 PathProgramCache]: Analyzing trace with hash -597753543, now seen corresponding path program 1 times [2024-11-20 08:34:22,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:22,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929456604] [2024-11-20 08:34:22,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:22,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:23,479 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:23,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:23,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929456604] [2024-11-20 08:34:23,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929456604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:23,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:23,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 08:34:23,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120974857] [2024-11-20 08:34:23,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:23,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 08:34:23,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:23,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 08:34:23,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:34:23,481 INFO L87 Difference]: Start difference. First operand 690 states and 908 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2024-11-20 08:34:24,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:24,270 INFO L93 Difference]: Finished difference Result 1300 states and 1705 transitions. [2024-11-20 08:34:24,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:34:24,271 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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 139 [2024-11-20 08:34:24,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:24,273 INFO L225 Difference]: With dead ends: 1300 [2024-11-20 08:34:24,273 INFO L226 Difference]: Without dead ends: 793 [2024-11-20 08:34:24,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-11-20 08:34:24,275 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 567 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:24,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 485 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:34:24,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2024-11-20 08:34:24,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 694. [2024-11-20 08:34:24,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 655 states have (on average 1.2916030534351146) internal successors, (846), 655 states have internal predecessors, (846), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:24,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 914 transitions. [2024-11-20 08:34:24,316 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 914 transitions. Word has length 139 [2024-11-20 08:34:24,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:24,316 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 914 transitions. [2024-11-20 08:34:24,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2024-11-20 08:34:24,317 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 914 transitions. [2024-11-20 08:34:24,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:34:24,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:24,318 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] [2024-11-20 08:34:24,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 08:34:24,318 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:24,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:24,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1346795056, now seen corresponding path program 1 times [2024-11-20 08:34:24,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:24,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122965118] [2024-11-20 08:34:24,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:24,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:24,790 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:24,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:24,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122965118] [2024-11-20 08:34:24,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122965118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:24,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:24,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:34:24,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590929856] [2024-11-20 08:34:24,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:24,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:34:24,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:24,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:34:24,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:34:24,792 INFO L87 Difference]: Start difference. First operand 694 states and 914 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 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) [2024-11-20 08:34:25,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:25,377 INFO L93 Difference]: Finished difference Result 1288 states and 1692 transitions. [2024-11-20 08:34:25,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:34:25,378 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 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 139 [2024-11-20 08:34:25,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:25,380 INFO L225 Difference]: With dead ends: 1288 [2024-11-20 08:34:25,380 INFO L226 Difference]: Without dead ends: 777 [2024-11-20 08:34:25,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2024-11-20 08:34:25,381 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 230 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:25,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 764 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:34:25,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-20 08:34:25,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 736. [2024-11-20 08:34:25,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 697 states have (on average 1.291248206599713) internal successors, (900), 697 states have internal predecessors, (900), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:25,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 968 transitions. [2024-11-20 08:34:25,419 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 968 transitions. Word has length 139 [2024-11-20 08:34:25,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:25,421 INFO L471 AbstractCegarLoop]: Abstraction has 736 states and 968 transitions. [2024-11-20 08:34:25,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 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) [2024-11-20 08:34:25,421 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 968 transitions. [2024-11-20 08:34:25,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 08:34:25,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:25,422 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, 1] [2024-11-20 08:34:25,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 08:34:25,422 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:25,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:25,423 INFO L85 PathProgramCache]: Analyzing trace with hash 850117294, now seen corresponding path program 1 times [2024-11-20 08:34:25,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:25,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383742485] [2024-11-20 08:34:25,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:25,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:26,231 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:26,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:26,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383742485] [2024-11-20 08:34:26,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383742485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:26,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:26,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 08:34:26,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159073008] [2024-11-20 08:34:26,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:26,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 08:34:26,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:26,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 08:34:26,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:34:26,232 INFO L87 Difference]: Start difference. First operand 736 states and 968 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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) [2024-11-20 08:34:26,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:26,712 INFO L93 Difference]: Finished difference Result 1317 states and 1730 transitions. [2024-11-20 08:34:26,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:34:26,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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 140 [2024-11-20 08:34:26,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:26,715 INFO L225 Difference]: With dead ends: 1317 [2024-11-20 08:34:26,715 INFO L226 Difference]: Without dead ends: 727 [2024-11-20 08:34:26,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:34:26,717 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 333 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:26,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 353 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:34:26,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-20 08:34:26,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 689. [2024-11-20 08:34:26,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 650 states have (on average 1.2846153846153847) internal successors, (835), 650 states have internal predecessors, (835), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 08:34:26,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 903 transitions. [2024-11-20 08:34:26,753 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 903 transitions. Word has length 140 [2024-11-20 08:34:26,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:26,754 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 903 transitions. [2024-11-20 08:34:26,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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) [2024-11-20 08:34:26,754 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 903 transitions. [2024-11-20 08:34:26,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 08:34:26,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:26,755 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, 1, 1] [2024-11-20 08:34:26,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 08:34:26,756 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:26,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:26,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1684666373, now seen corresponding path program 1 times [2024-11-20 08:34:26,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:26,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966650191] [2024-11-20 08:34:26,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:26,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,247 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:27,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:27,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966650191] [2024-11-20 08:34:27,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966650191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:27,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:27,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:34:27,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795515922] [2024-11-20 08:34:27,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:27,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:34:27,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:27,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:34:27,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:34:27,250 INFO L87 Difference]: Start difference. First operand 689 states and 903 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 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) [2024-11-20 08:34:27,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:27,575 INFO L93 Difference]: Finished difference Result 926 states and 1178 transitions. [2024-11-20 08:34:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 08:34:27,576 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 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 141 [2024-11-20 08:34:27,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:27,579 INFO L225 Difference]: With dead ends: 926 [2024-11-20 08:34:27,579 INFO L226 Difference]: Without dead ends: 924 [2024-11-20 08:34:27,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:34:27,581 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 285 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:27,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 933 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:34:27,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-11-20 08:34:27,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 920. [2024-11-20 08:34:27,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 853 states have (on average 1.2379835873388043) internal successors, (1056), 855 states have internal predecessors, (1056), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 08:34:27,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1172 transitions. [2024-11-20 08:34:27,646 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1172 transitions. Word has length 141 [2024-11-20 08:34:27,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:27,646 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1172 transitions. [2024-11-20 08:34:27,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 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) [2024-11-20 08:34:27,646 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1172 transitions. [2024-11-20 08:34:27,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 08:34:27,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:27,647 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, 1, 1] [2024-11-20 08:34:27,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 08:34:27,648 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:27,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:27,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1037781860, now seen corresponding path program 1 times [2024-11-20 08:34:27,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:27,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797691883] [2024-11-20 08:34:27,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:27,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:27,786 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:27,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:27,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797691883] [2024-11-20 08:34:27,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797691883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:27,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:27,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:34:27,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929385215] [2024-11-20 08:34:27,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:27,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:34:27,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:27,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:34:27,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:34:27,788 INFO L87 Difference]: Start difference. First operand 920 states and 1172 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-20 08:34:27,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:27,892 INFO L93 Difference]: Finished difference Result 1963 states and 2493 transitions. [2024-11-20 08:34:27,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:34:27,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 141 [2024-11-20 08:34:27,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:27,895 INFO L225 Difference]: With dead ends: 1963 [2024-11-20 08:34:27,896 INFO L226 Difference]: Without dead ends: 1046 [2024-11-20 08:34:27,897 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 [2024-11-20 08:34:27,897 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 39 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:27,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 544 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:34:27,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2024-11-20 08:34:27,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1024. [2024-11-20 08:34:27,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 957 states have (on average 1.2319749216300941) internal successors, (1179), 959 states have internal predecessors, (1179), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 08:34:27,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1295 transitions. [2024-11-20 08:34:27,979 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1295 transitions. Word has length 141 [2024-11-20 08:34:27,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:27,979 INFO L471 AbstractCegarLoop]: Abstraction has 1024 states and 1295 transitions. [2024-11-20 08:34:27,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-20 08:34:27,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1295 transitions. [2024-11-20 08:34:27,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-20 08:34:27,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:27,981 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, 1, 1, 1] [2024-11-20 08:34:27,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 08:34:27,981 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:27,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:27,981 INFO L85 PathProgramCache]: Analyzing trace with hash 339047129, now seen corresponding path program 1 times [2024-11-20 08:34:27,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:27,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87913008] [2024-11-20 08:34:27,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:27,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:28,696 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:28,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:28,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87913008] [2024-11-20 08:34:28,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87913008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:28,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:28,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:34:28,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776230571] [2024-11-20 08:34:28,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:28,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:34:28,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:28,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:34:28,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:34:28,698 INFO L87 Difference]: Start difference. First operand 1024 states and 1295 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 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) [2024-11-20 08:34:29,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:29,343 INFO L93 Difference]: Finished difference Result 2083 states and 2628 transitions. [2024-11-20 08:34:29,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:34:29,343 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 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 142 [2024-11-20 08:34:29,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:29,347 INFO L225 Difference]: With dead ends: 2083 [2024-11-20 08:34:29,347 INFO L226 Difference]: Without dead ends: 1062 [2024-11-20 08:34:29,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-20 08:34:29,349 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 177 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:29,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 440 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:34:29,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2024-11-20 08:34:29,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 992. [2024-11-20 08:34:29,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 925 states have (on average 1.2172972972972973) internal successors, (1126), 927 states have internal predecessors, (1126), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 08:34:29,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1242 transitions. [2024-11-20 08:34:29,415 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1242 transitions. Word has length 142 [2024-11-20 08:34:29,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:29,415 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1242 transitions. [2024-11-20 08:34:29,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 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) [2024-11-20 08:34:29,415 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1242 transitions. [2024-11-20 08:34:29,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-20 08:34:29,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:29,417 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, 1, 1, 1] [2024-11-20 08:34:29,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 08:34:29,417 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:29,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:29,417 INFO L85 PathProgramCache]: Analyzing trace with hash -840470491, now seen corresponding path program 1 times [2024-11-20 08:34:29,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:29,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044161510] [2024-11-20 08:34:29,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:29,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:29,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:29,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044161510] [2024-11-20 08:34:29,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044161510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:29,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:29,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:34:29,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140294673] [2024-11-20 08:34:29,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:29,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:34:29,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:29,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:34:29,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:34:29,563 INFO L87 Difference]: Start difference. First operand 992 states and 1242 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-20 08:34:29,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:29,665 INFO L93 Difference]: Finished difference Result 1761 states and 2221 transitions. [2024-11-20 08:34:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:34:29,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 142 [2024-11-20 08:34:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:29,668 INFO L225 Difference]: With dead ends: 1761 [2024-11-20 08:34:29,668 INFO L226 Difference]: Without dead ends: 699 [2024-11-20 08:34:29,670 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 [2024-11-20 08:34:29,674 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 105 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:29,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 356 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:34:29,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-20 08:34:29,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 695. [2024-11-20 08:34:29,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 628 states have (on average 1.1878980891719746) internal successors, (746), 630 states have internal predecessors, (746), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 08:34:29,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 862 transitions. [2024-11-20 08:34:29,740 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 862 transitions. Word has length 142 [2024-11-20 08:34:29,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:29,740 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 862 transitions. [2024-11-20 08:34:29,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-20 08:34:29,741 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 862 transitions. [2024-11-20 08:34:29,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 08:34:29,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:29,742 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, 1, 1, 1, 1] [2024-11-20 08:34:29,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 08:34:29,742 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:29,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:29,742 INFO L85 PathProgramCache]: Analyzing trace with hash -996369262, now seen corresponding path program 1 times [2024-11-20 08:34:29,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:29,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359418994] [2024-11-20 08:34:29,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:29,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:29,867 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:29,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:29,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359418994] [2024-11-20 08:34:29,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359418994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:29,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:29,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:34:29,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495970078] [2024-11-20 08:34:29,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:29,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:34:29,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:29,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:34:29,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:34:29,869 INFO L87 Difference]: Start difference. First operand 695 states and 862 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-11-20 08:34:29,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:29,960 INFO L93 Difference]: Finished difference Result 1299 states and 1608 transitions. [2024-11-20 08:34:29,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:34:29,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 143 [2024-11-20 08:34:29,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:29,964 INFO L225 Difference]: With dead ends: 1299 [2024-11-20 08:34:29,964 INFO L226 Difference]: Without dead ends: 607 [2024-11-20 08:34:29,965 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 [2024-11-20 08:34:29,965 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 118 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:29,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 426 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:34:29,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-20 08:34:30,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 601. [2024-11-20 08:34:30,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 534 states have (on average 1.1704119850187267) internal successors, (625), 536 states have internal predecessors, (625), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 08:34:30,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 741 transitions. [2024-11-20 08:34:30,043 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 741 transitions. Word has length 143 [2024-11-20 08:34:30,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:30,043 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 741 transitions. [2024-11-20 08:34:30,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-11-20 08:34:30,043 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 741 transitions. [2024-11-20 08:34:30,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 08:34:30,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:30,044 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, 1, 1, 1, 1, 1] [2024-11-20 08:34:30,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-20 08:34:30,044 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:30,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:30,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1560829808, now seen corresponding path program 1 times [2024-11-20 08:34:30,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:30,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592721180] [2024-11-20 08:34:30,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:30,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:30,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:30,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592721180] [2024-11-20 08:34:30,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592721180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:30,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:30,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:34:30,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717228619] [2024-11-20 08:34:30,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:30,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:34:30,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:30,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:34:30,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:34:30,189 INFO L87 Difference]: Start difference. First operand 601 states and 741 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-20 08:34:30,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:30,286 INFO L93 Difference]: Finished difference Result 1156 states and 1419 transitions. [2024-11-20 08:34:30,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:34:30,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 144 [2024-11-20 08:34:30,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:30,289 INFO L225 Difference]: With dead ends: 1156 [2024-11-20 08:34:30,290 INFO L226 Difference]: Without dead ends: 587 [2024-11-20 08:34:30,290 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 [2024-11-20 08:34:30,291 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 29 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:30,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 453 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:34:30,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-20 08:34:30,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2024-11-20 08:34:30,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 520 states have (on average 1.1596153846153847) internal successors, (603), 522 states have internal predecessors, (603), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 08:34:30,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 719 transitions. [2024-11-20 08:34:30,354 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 719 transitions. Word has length 144 [2024-11-20 08:34:30,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:30,354 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 719 transitions. [2024-11-20 08:34:30,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-20 08:34:30,355 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 719 transitions. [2024-11-20 08:34:30,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 08:34:30,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:30,356 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, 1, 1, 1, 1, 1] [2024-11-20 08:34:30,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-20 08:34:30,356 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:30,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:30,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1027029127, now seen corresponding path program 1 times [2024-11-20 08:34:30,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:30,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069164840] [2024-11-20 08:34:30,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:30,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:31,201 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-20 08:34:31,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:31,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069164840] [2024-11-20 08:34:31,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069164840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:31,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:31,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 08:34:31,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729207316] [2024-11-20 08:34:31,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:31,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 08:34:31,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:31,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 08:34:31,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:34:31,204 INFO L87 Difference]: Start difference. First operand 587 states and 719 transitions. Second operand has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 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) [2024-11-20 08:34:31,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:31,720 INFO L93 Difference]: Finished difference Result 698 states and 849 transitions. [2024-11-20 08:34:31,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 08:34:31,720 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 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 144 [2024-11-20 08:34:31,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:31,723 INFO L225 Difference]: With dead ends: 698 [2024-11-20 08:34:31,723 INFO L226 Difference]: Without dead ends: 696 [2024-11-20 08:34:31,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-11-20 08:34:31,723 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 154 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:31,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1292 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:34:31,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-20 08:34:31,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 655. [2024-11-20 08:34:31,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 588 states have (on average 1.1581632653061225) internal successors, (681), 590 states have internal predecessors, (681), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 08:34:31,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 797 transitions. [2024-11-20 08:34:31,786 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 797 transitions. Word has length 144 [2024-11-20 08:34:31,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:31,787 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 797 transitions. [2024-11-20 08:34:31,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 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) [2024-11-20 08:34:31,787 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 797 transitions. [2024-11-20 08:34:31,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 08:34:31,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:31,788 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, 1, 1, 1, 1, 1] [2024-11-20 08:34:31,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-20 08:34:31,788 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:31,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:31,789 INFO L85 PathProgramCache]: Analyzing trace with hash 747978235, now seen corresponding path program 1 times [2024-11-20 08:34:31,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:31,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669147862] [2024-11-20 08:34:31,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:31,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:38,465 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete [2024-11-20 08:34:55,544 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete