./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c -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 ed3d7c65b5f276938c992de2fd71c82e0f79af5cc9147088727c012b3d12461a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 21:05:22,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 21:05:22,605 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 21:05:22,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 21:05:22,611 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 21:05:22,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 21:05:22,629 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 21:05:22,629 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 21:05:22,630 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 21:05:22,630 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 21:05:22,630 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 21:05:22,631 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 21:05:22,631 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 21:05:22,632 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 21:05:22,633 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 21:05:22,633 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 21:05:22,633 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 21:05:22,634 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 21:05:22,634 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 21:05:22,634 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 21:05:22,634 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 21:05:22,637 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 21:05:22,637 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 21:05:22,637 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 21:05:22,637 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 21:05:22,637 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 21:05:22,638 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 21:05:22,638 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 21:05:22,638 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 21:05:22,638 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 21:05:22,638 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 21:05:22,638 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 21:05:22,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:05:22,639 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 21:05:22,639 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 21:05:22,639 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 21:05:22,639 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 21:05:22,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 21:05:22,639 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 21:05:22,639 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 21:05:22,639 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 21:05:22,640 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 21:05:22,640 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed3d7c65b5f276938c992de2fd71c82e0f79af5cc9147088727c012b3d12461a [2024-10-12 21:05:22,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 21:05:22,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 21:05:22,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 21:05:22,865 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 21:05:22,866 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 21:05:22,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c [2024-10-12 21:05:24,033 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 21:05:24,513 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 21:05:24,514 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c [2024-10-12 21:05:24,570 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb1a23f38/6d98fdd78a6e43feafa512b4f9573486/FLAGc657a568b [2024-10-12 21:05:24,596 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb1a23f38/6d98fdd78a6e43feafa512b4f9573486 [2024-10-12 21:05:24,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 21:05:24,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 21:05:24,599 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 21:05:24,599 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 21:05:24,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 21:05:24,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:05:24" (1/1) ... [2024-10-12 21:05:24,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3831556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:24, skipping insertion in model container [2024-10-12 21:05:24,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 09:05:24" (1/1) ... [2024-10-12 21:05:24,740 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 21:05:26,064 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c[377612,377625] [2024-10-12 21:05:26,088 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c[383339,383352] [2024-10-12 21:05:26,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:05:26,304 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 21:05:26,865 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c[377612,377625] [2024-10-12 21:05:26,870 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.13.cil-2.c[383339,383352] [2024-10-12 21:05:26,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 21:05:26,940 INFO L204 MainTranslator]: Completed translation [2024-10-12 21:05:26,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26 WrapperNode [2024-10-12 21:05:26,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 21:05:26,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 21:05:26,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 21:05:26,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 21:05:26,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26" (1/1) ... [2024-10-12 21:05:27,009 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26" (1/1) ... [2024-10-12 21:05:27,321 INFO L138 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13293 [2024-10-12 21:05:27,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 21:05:27,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 21:05:27,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 21:05:27,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 21:05:27,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26" (1/1) ... [2024-10-12 21:05:27,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26" (1/1) ... [2024-10-12 21:05:27,383 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26" (1/1) ... [2024-10-12 21:05:27,446 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 21:05:27,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26" (1/1) ... [2024-10-12 21:05:27,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26" (1/1) ... [2024-10-12 21:05:27,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26" (1/1) ... [2024-10-12 21:05:27,618 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26" (1/1) ... [2024-10-12 21:05:27,648 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26" (1/1) ... [2024-10-12 21:05:27,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26" (1/1) ... [2024-10-12 21:05:27,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 21:05:27,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 21:05:27,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 21:05:27,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 21:05:27,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26" (1/1) ... [2024-10-12 21:05:27,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 21:05:27,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 21:05:27,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 21:05:27,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 21:05:27,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 21:05:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-12 21:05:27,800 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-12 21:05:27,800 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-12 21:05:27,801 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-12 21:05:27,801 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-12 21:05:27,802 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-12 21:05:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-12 21:05:27,802 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-12 21:05:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-12 21:05:27,802 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-12 21:05:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-12 21:05:27,802 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-12 21:05:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 21:05:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 21:05:27,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 21:05:27,999 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 21:05:28,001 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 21:05:33,728 INFO L? ?]: Removed 1761 outVars from TransFormulas that were not future-live. [2024-10-12 21:05:33,728 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 21:05:33,821 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 21:05:33,822 INFO L314 CfgBuilder]: Removed 17 assume(true) statements. [2024-10-12 21:05:33,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:05:33 BoogieIcfgContainer [2024-10-12 21:05:33,822 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 21:05:33,824 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 21:05:33,824 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 21:05:33,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 21:05:33,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 09:05:24" (1/3) ... [2024-10-12 21:05:33,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4712ffc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:05:33, skipping insertion in model container [2024-10-12 21:05:33,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 09:05:26" (2/3) ... [2024-10-12 21:05:33,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4712ffc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:05:33, skipping insertion in model container [2024-10-12 21:05:33,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:05:33" (3/3) ... [2024-10-12 21:05:33,830 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.13.cil-2.c [2024-10-12 21:05:33,842 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 21:05:33,842 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-12 21:05:33,936 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 21:05:33,941 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;@5f601fa7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 21:05:33,942 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-12 21:05:33,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 2494 states, 2458 states have (on average 1.8746948738812041) internal successors, (4608), 2461 states have internal predecessors, (4608), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-12 21:05:33,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:05:33,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:05:33,977 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:05:33,978 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:05:33,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:05:33,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1072822453, now seen corresponding path program 1 times [2024-10-12 21:05:33,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:05:33,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89334271] [2024-10-12 21:05:33,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:05:33,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:05:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:34,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:05:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:34,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:05:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:34,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:05:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:34,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:05:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:34,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:05:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:34,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:05:34,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:05:34,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89334271] [2024-10-12 21:05:34,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89334271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:05:34,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:05:34,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 21:05:34,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122673411] [2024-10-12 21:05:34,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:05:34,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 21:05:34,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:05:34,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 21:05:34,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 21:05:34,582 INFO L87 Difference]: Start difference. First operand has 2494 states, 2458 states have (on average 1.8746948738812041) internal successors, (4608), 2461 states have internal predecessors, (4608), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:36,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:05:36,417 INFO L93 Difference]: Finished difference Result 5122 states and 9562 transitions. [2024-10-12 21:05:36,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 21:05:36,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:05:36,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:05:36,444 INFO L225 Difference]: With dead ends: 5122 [2024-10-12 21:05:36,445 INFO L226 Difference]: Without dead ends: 2630 [2024-10-12 21:05:36,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 21:05:36,456 INFO L432 NwaCegarLoop]: 4276 mSDtfsCounter, 1048 mSDsluCounter, 12226 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 16502 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 21:05:36,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 16502 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 21:05:36,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2024-10-12 21:05:36,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2490. [2024-10-12 21:05:36,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 2455 states have (on average 1.8354378818737271) internal successors, (4506), 2457 states have internal predecessors, (4506), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-12 21:05:36,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 4560 transitions. [2024-10-12 21:05:36,583 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 4560 transitions. Word has length 171 [2024-10-12 21:05:36,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:05:36,584 INFO L471 AbstractCegarLoop]: Abstraction has 2490 states and 4560 transitions. [2024-10-12 21:05:36,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:36,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 4560 transitions. [2024-10-12 21:05:36,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:05:36,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:05:36,588 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:05:36,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 21:05:36,588 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:05:36,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:05:36,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1643094259, now seen corresponding path program 1 times [2024-10-12 21:05:36,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:05:36,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297749628] [2024-10-12 21:05:36,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:05:36,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:05:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:36,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:05:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:36,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:05:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:36,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:05:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:36,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:05:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:36,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:05:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:36,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:05:36,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:05:36,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297749628] [2024-10-12 21:05:36,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297749628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:05:36,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:05:36,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 21:05:36,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899744642] [2024-10-12 21:05:36,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:05:36,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 21:05:36,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:05:36,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 21:05:36,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 21:05:36,800 INFO L87 Difference]: Start difference. First operand 2490 states and 4560 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:38,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:05:38,449 INFO L93 Difference]: Finished difference Result 2984 states and 5386 transitions. [2024-10-12 21:05:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 21:05:38,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:05:38,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:05:38,458 INFO L225 Difference]: With dead ends: 2984 [2024-10-12 21:05:38,459 INFO L226 Difference]: Without dead ends: 2630 [2024-10-12 21:05:38,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 21:05:38,461 INFO L432 NwaCegarLoop]: 4272 mSDtfsCounter, 1036 mSDsluCounter, 12217 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 16489 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 21:05:38,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 16489 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 21:05:38,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2024-10-12 21:05:38,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2490. [2024-10-12 21:05:38,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 2455 states have (on average 1.835030549898167) internal successors, (4505), 2457 states have internal predecessors, (4505), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-12 21:05:38,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 4559 transitions. [2024-10-12 21:05:38,513 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 4559 transitions. Word has length 171 [2024-10-12 21:05:38,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:05:38,515 INFO L471 AbstractCegarLoop]: Abstraction has 2490 states and 4559 transitions. [2024-10-12 21:05:38,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:38,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 4559 transitions. [2024-10-12 21:05:38,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:05:38,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:05:38,519 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:05:38,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 21:05:38,519 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:05:38,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:05:38,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1031825201, now seen corresponding path program 1 times [2024-10-12 21:05:38,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:05:38,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359004012] [2024-10-12 21:05:38,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:05:38,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:05:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:38,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:05:38,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:38,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:05:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:38,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:05:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:38,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:05:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:38,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:05:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:38,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:05:38,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:05:38,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359004012] [2024-10-12 21:05:38,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359004012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:05:38,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:05:38,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 21:05:38,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284677457] [2024-10-12 21:05:38,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:05:38,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 21:05:38,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:05:38,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 21:05:38,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 21:05:38,809 INFO L87 Difference]: Start difference. First operand 2490 states and 4559 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:41,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:05:41,367 INFO L93 Difference]: Finished difference Result 3491 states and 6239 transitions. [2024-10-12 21:05:41,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 21:05:41,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:05:41,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:05:41,378 INFO L225 Difference]: With dead ends: 3491 [2024-10-12 21:05:41,378 INFO L226 Difference]: Without dead ends: 3141 [2024-10-12 21:05:41,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-12 21:05:41,380 INFO L432 NwaCegarLoop]: 4238 mSDtfsCounter, 5542 mSDsluCounter, 12708 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 16946 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:05:41,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 16946 Invalid, 2578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-12 21:05:41,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2024-10-12 21:05:41,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 2862. [2024-10-12 21:05:41,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2862 states, 2798 states have (on average 1.812723373838456) internal successors, (5072), 2801 states have internal predecessors, (5072), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2024-10-12 21:05:41,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2862 states to 2862 states and 5173 transitions. [2024-10-12 21:05:41,444 INFO L78 Accepts]: Start accepts. Automaton has 2862 states and 5173 transitions. Word has length 171 [2024-10-12 21:05:41,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:05:41,445 INFO L471 AbstractCegarLoop]: Abstraction has 2862 states and 5173 transitions. [2024-10-12 21:05:41,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:41,445 INFO L276 IsEmpty]: Start isEmpty. Operand 2862 states and 5173 transitions. [2024-10-12 21:05:41,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:05:41,447 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:05:41,447 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:05:41,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 21:05:41,447 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:05:41,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:05:41,448 INFO L85 PathProgramCache]: Analyzing trace with hash 247523539, now seen corresponding path program 1 times [2024-10-12 21:05:41,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:05:41,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519317238] [2024-10-12 21:05:41,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:05:41,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:05:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:41,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:05:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:41,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:05:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:41,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:05:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:41,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:05:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:41,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:05:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:41,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:05:41,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:05:41,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519317238] [2024-10-12 21:05:41,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519317238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:05:41,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:05:41,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:05:41,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384392796] [2024-10-12 21:05:41,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:05:41,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:05:41,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:05:41,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:05:41,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:05:41,715 INFO L87 Difference]: Start difference. First operand 2862 states and 5173 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:45,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:05:45,196 INFO L93 Difference]: Finished difference Result 4396 states and 7749 transitions. [2024-10-12 21:05:45,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 21:05:45,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:05:45,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:05:45,211 INFO L225 Difference]: With dead ends: 4396 [2024-10-12 21:05:45,212 INFO L226 Difference]: Without dead ends: 3674 [2024-10-12 21:05:45,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-12 21:05:45,217 INFO L432 NwaCegarLoop]: 4449 mSDtfsCounter, 5591 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3997 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5611 SdHoareTripleChecker+Valid, 21912 SdHoareTripleChecker+Invalid, 4060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-12 21:05:45,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5611 Valid, 21912 Invalid, 4060 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3997 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-12 21:05:45,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2024-10-12 21:05:45,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3205. [2024-10-12 21:05:45,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3112 states have (on average 1.7933804627249357) internal successors, (5581), 3116 states have internal predecessors, (5581), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-10-12 21:05:45,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 5728 transitions. [2024-10-12 21:05:45,338 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 5728 transitions. Word has length 171 [2024-10-12 21:05:45,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:05:45,339 INFO L471 AbstractCegarLoop]: Abstraction has 3205 states and 5728 transitions. [2024-10-12 21:05:45,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:45,339 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 5728 transitions. [2024-10-12 21:05:45,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:05:45,341 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:05:45,341 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:05:45,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 21:05:45,342 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:05:45,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:05:45,342 INFO L85 PathProgramCache]: Analyzing trace with hash -17123951, now seen corresponding path program 1 times [2024-10-12 21:05:45,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:05:45,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429834651] [2024-10-12 21:05:45,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:05:45,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:05:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:45,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:05:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:45,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:05:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:45,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:05:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:45,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:05:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:45,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:05:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:45,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:05:45,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:05:45,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429834651] [2024-10-12 21:05:45,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429834651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:05:45,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:05:45,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:05:45,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909982334] [2024-10-12 21:05:45,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:05:45,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:05:45,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:05:45,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:05:45,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:05:45,610 INFO L87 Difference]: Start difference. First operand 3205 states and 5728 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:05:47,628 INFO L93 Difference]: Finished difference Result 4759 states and 8350 transitions. [2024-10-12 21:05:47,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 21:05:47,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:05:47,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:05:47,640 INFO L225 Difference]: With dead ends: 4759 [2024-10-12 21:05:47,640 INFO L226 Difference]: Without dead ends: 3694 [2024-10-12 21:05:47,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-12 21:05:47,644 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5115 mSDsluCounter, 16655 mSDsCounter, 0 mSdLazyCounter, 2047 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5136 SdHoareTripleChecker+Valid, 20880 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-12 21:05:47,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5136 Valid, 20880 Invalid, 2114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2047 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-12 21:05:47,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2024-10-12 21:05:47,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3205. [2024-10-12 21:05:47,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3112 states have (on average 1.7924164524421593) internal successors, (5578), 3116 states have internal predecessors, (5578), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-10-12 21:05:47,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 5725 transitions. [2024-10-12 21:05:47,728 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 5725 transitions. Word has length 171 [2024-10-12 21:05:47,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:05:47,728 INFO L471 AbstractCegarLoop]: Abstraction has 3205 states and 5725 transitions. [2024-10-12 21:05:47,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:47,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 5725 transitions. [2024-10-12 21:05:47,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:05:47,730 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:05:47,730 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:05:47,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 21:05:47,730 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:05:47,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:05:47,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1340302897, now seen corresponding path program 1 times [2024-10-12 21:05:47,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:05:47,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610381131] [2024-10-12 21:05:47,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:05:47,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:05:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:47,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:05:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:47,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:05:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:47,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:05:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:47,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:05:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:47,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:05:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:05:47,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:05:47,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610381131] [2024-10-12 21:05:47,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610381131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:05:47,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:05:47,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:05:47,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922167543] [2024-10-12 21:05:47,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:05:47,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:05:47,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:05:47,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:05:47,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:05:47,966 INFO L87 Difference]: Start difference. First operand 3205 states and 5725 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:49,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:05:49,394 INFO L93 Difference]: Finished difference Result 4755 states and 8333 transitions. [2024-10-12 21:05:49,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 21:05:49,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:05:49,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:05:49,405 INFO L225 Difference]: With dead ends: 4755 [2024-10-12 21:05:49,406 INFO L226 Difference]: Without dead ends: 3690 [2024-10-12 21:05:49,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-12 21:05:49,409 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5276 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5297 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:05:49,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5297 Valid, 16750 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 21:05:49,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3690 states. [2024-10-12 21:05:49,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3690 to 3205. [2024-10-12 21:05:49,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3112 states have (on average 1.791452442159383) internal successors, (5575), 3116 states have internal predecessors, (5575), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-10-12 21:05:49,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 5722 transitions. [2024-10-12 21:05:49,481 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 5722 transitions. Word has length 171 [2024-10-12 21:05:49,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:05:49,482 INFO L471 AbstractCegarLoop]: Abstraction has 3205 states and 5722 transitions. [2024-10-12 21:05:49,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:49,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 5722 transitions. [2024-10-12 21:05:49,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:05:49,483 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:05:49,484 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:05:49,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 21:05:49,484 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:05:49,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:05:49,484 INFO L85 PathProgramCache]: Analyzing trace with hash 556676561, now seen corresponding path program 1 times [2024-10-12 21:05:49,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:05:49,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228223752] [2024-10-12 21:05:49,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:05:49,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:05:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:49,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:05:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:49,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:05:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:49,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:05:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:49,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:05:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:49,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:05:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:49,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:05:49,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:05:49,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228223752] [2024-10-12 21:05:49,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228223752] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:05:49,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:05:49,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:05:49,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110797780] [2024-10-12 21:05:49,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:05:49,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:05:49,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:05:49,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:05:49,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:05:49,703 INFO L87 Difference]: Start difference. First operand 3205 states and 5722 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:51,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:05:51,251 INFO L93 Difference]: Finished difference Result 4751 states and 8316 transitions. [2024-10-12 21:05:51,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 21:05:51,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:05:51,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:05:51,262 INFO L225 Difference]: With dead ends: 4751 [2024-10-12 21:05:51,262 INFO L226 Difference]: Without dead ends: 3686 [2024-10-12 21:05:51,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-12 21:05:51,266 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5274 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5295 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:05:51,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5295 Valid, 16750 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 21:05:51,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2024-10-12 21:05:51,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3205. [2024-10-12 21:05:51,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3112 states have (on average 1.7904884318766068) internal successors, (5572), 3116 states have internal predecessors, (5572), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-10-12 21:05:51,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 5719 transitions. [2024-10-12 21:05:51,339 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 5719 transitions. Word has length 171 [2024-10-12 21:05:51,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:05:51,339 INFO L471 AbstractCegarLoop]: Abstraction has 3205 states and 5719 transitions. [2024-10-12 21:05:51,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:51,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 5719 transitions. [2024-10-12 21:05:51,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:05:51,341 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:05:51,341 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:05:51,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 21:05:51,342 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:05:51,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:05:51,342 INFO L85 PathProgramCache]: Analyzing trace with hash 894964111, now seen corresponding path program 1 times [2024-10-12 21:05:51,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:05:51,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398753737] [2024-10-12 21:05:51,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:05:51,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:05:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:51,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:05:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:51,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:05:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:51,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:05:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:51,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:05:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:51,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:05:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:05:51,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:05:51,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398753737] [2024-10-12 21:05:51,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398753737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:05:51,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:05:51,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:05:51,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946892616] [2024-10-12 21:05:51,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:05:51,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:05:51,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:05:51,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:05:51,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:05:51,565 INFO L87 Difference]: Start difference. First operand 3205 states and 5719 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:54,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:05:54,311 INFO L93 Difference]: Finished difference Result 5709 states and 9880 transitions. [2024-10-12 21:05:54,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 21:05:54,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:05:54,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:05:54,327 INFO L225 Difference]: With dead ends: 5709 [2024-10-12 21:05:54,327 INFO L226 Difference]: Without dead ends: 4644 [2024-10-12 21:05:54,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-12 21:05:54,332 INFO L432 NwaCegarLoop]: 4247 mSDtfsCounter, 5674 mSDsluCounter, 16920 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5694 SdHoareTripleChecker+Valid, 21167 SdHoareTripleChecker+Invalid, 3358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-12 21:05:54,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5694 Valid, 21167 Invalid, 3358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3255 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-12 21:05:54,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4644 states. [2024-10-12 21:05:54,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4644 to 3904. [2024-10-12 21:05:54,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3904 states, 3753 states have (on average 1.7593924860111911) internal successors, (6603), 3759 states have internal predecessors, (6603), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-10-12 21:05:54,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 6846 transitions. [2024-10-12 21:05:54,436 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 6846 transitions. Word has length 171 [2024-10-12 21:05:54,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:05:54,437 INFO L471 AbstractCegarLoop]: Abstraction has 3904 states and 6846 transitions. [2024-10-12 21:05:54,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:54,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 6846 transitions. [2024-10-12 21:05:54,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:05:54,439 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:05:54,439 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:05:54,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 21:05:54,439 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:05:54,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:05:54,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1321518609, now seen corresponding path program 1 times [2024-10-12 21:05:54,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:05:54,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640089886] [2024-10-12 21:05:54,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:05:54,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:05:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:54,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:05:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:54,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:05:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:54,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:05:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:54,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:05:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:54,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:05:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:54,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:05:54,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:05:54,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640089886] [2024-10-12 21:05:54,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640089886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:05:54,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:05:54,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:05:54,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703315827] [2024-10-12 21:05:54,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:05:54,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:05:54,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:05:54,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:05:54,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:05:54,645 INFO L87 Difference]: Start difference. First operand 3904 states and 6846 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:56,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:05:56,071 INFO L93 Difference]: Finished difference Result 6395 states and 10995 transitions. [2024-10-12 21:05:56,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 21:05:56,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:05:56,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:05:56,091 INFO L225 Difference]: With dead ends: 6395 [2024-10-12 21:05:56,091 INFO L226 Difference]: Without dead ends: 4631 [2024-10-12 21:05:56,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-12 21:05:56,098 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5273 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5294 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:05:56,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5294 Valid, 16750 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1797 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 21:05:56,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2024-10-12 21:05:56,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 3904. [2024-10-12 21:05:56,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3904 states, 3753 states have (on average 1.7580602184918732) internal successors, (6598), 3759 states have internal predecessors, (6598), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-10-12 21:05:56,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 6841 transitions. [2024-10-12 21:05:56,215 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 6841 transitions. Word has length 171 [2024-10-12 21:05:56,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:05:56,215 INFO L471 AbstractCegarLoop]: Abstraction has 3904 states and 6841 transitions. [2024-10-12 21:05:56,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:56,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 6841 transitions. [2024-10-12 21:05:56,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:05:56,217 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:05:56,218 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:05:56,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 21:05:56,218 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:05:56,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:05:56,218 INFO L85 PathProgramCache]: Analyzing trace with hash 781089103, now seen corresponding path program 1 times [2024-10-12 21:05:56,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:05:56,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264319185] [2024-10-12 21:05:56,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:05:56,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:05:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:56,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:05:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:56,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:05:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:56,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:05:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:56,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:05:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:56,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:05:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:56,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:05:56,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:05:56,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264319185] [2024-10-12 21:05:56,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264319185] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:05:56,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:05:56,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:05:56,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136625609] [2024-10-12 21:05:56,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:05:56,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:05:56,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:05:56,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:05:56,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:05:56,432 INFO L87 Difference]: Start difference. First operand 3904 states and 6841 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:59,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:05:59,580 INFO L93 Difference]: Finished difference Result 8250 states and 14007 transitions. [2024-10-12 21:05:59,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 21:05:59,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:05:59,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:05:59,595 INFO L225 Difference]: With dead ends: 8250 [2024-10-12 21:05:59,595 INFO L226 Difference]: Without dead ends: 6486 [2024-10-12 21:05:59,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-12 21:05:59,601 INFO L432 NwaCegarLoop]: 4447 mSDtfsCounter, 5556 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3863 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5576 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-12 21:05:59,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5576 Valid, 21910 Invalid, 3928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3863 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-12 21:05:59,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6486 states. [2024-10-12 21:05:59,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6486 to 5302. [2024-10-12 21:05:59,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5035 states have (on average 1.717974180734856) internal successors, (8650), 5045 states have internal predecessors, (8650), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2024-10-12 21:05:59,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 9091 transitions. [2024-10-12 21:05:59,835 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 9091 transitions. Word has length 171 [2024-10-12 21:05:59,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:05:59,835 INFO L471 AbstractCegarLoop]: Abstraction has 5302 states and 9091 transitions. [2024-10-12 21:05:59,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:05:59,836 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 9091 transitions. [2024-10-12 21:05:59,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:05:59,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:05:59,839 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:05:59,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 21:05:59,839 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:05:59,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:05:59,839 INFO L85 PathProgramCache]: Analyzing trace with hash 625108561, now seen corresponding path program 1 times [2024-10-12 21:05:59,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:05:59,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696952683] [2024-10-12 21:05:59,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:05:59,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:05:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:59,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:05:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:05:59,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:05:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:00,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:06:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:00,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:06:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:00,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:06:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:00,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:06:00,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:06:00,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696952683] [2024-10-12 21:06:00,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696952683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:06:00,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:06:00,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:06:00,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867128018] [2024-10-12 21:06:00,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:06:00,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:06:00,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:06:00,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:06:00,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:06:00,042 INFO L87 Difference]: Start difference. First operand 5302 states and 9091 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:06:03,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:06:03,197 INFO L93 Difference]: Finished difference Result 13338 states and 22315 transitions. [2024-10-12 21:06:03,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 21:06:03,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:06:03,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:06:03,224 INFO L225 Difference]: With dead ends: 13338 [2024-10-12 21:06:03,224 INFO L226 Difference]: Without dead ends: 10176 [2024-10-12 21:06:03,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-12 21:06:03,237 INFO L432 NwaCegarLoop]: 4447 mSDtfsCounter, 5561 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3845 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5581 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-12 21:06:03,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5581 Valid, 21910 Invalid, 3910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3845 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-12 21:06:03,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10176 states. [2024-10-12 21:06:03,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10176 to 8103. [2024-10-12 21:06:03,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8103 states, 7604 states have (on average 1.6780641767490794) internal successors, (12760), 7622 states have internal predecessors, (12760), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-10-12 21:06:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8103 states to 8103 states and 13615 transitions. [2024-10-12 21:06:03,618 INFO L78 Accepts]: Start accepts. Automaton has 8103 states and 13615 transitions. Word has length 171 [2024-10-12 21:06:03,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:06:03,618 INFO L471 AbstractCegarLoop]: Abstraction has 8103 states and 13615 transitions. [2024-10-12 21:06:03,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:06:03,619 INFO L276 IsEmpty]: Start isEmpty. Operand 8103 states and 13615 transitions. [2024-10-12 21:06:03,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:06:03,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:06:03,623 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:06:03,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 21:06:03,624 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:06:03,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:06:03,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1035718927, now seen corresponding path program 1 times [2024-10-12 21:06:03,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:06:03,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483888762] [2024-10-12 21:06:03,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:06:03,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:06:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:03,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:06:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:03,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:06:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:03,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:06:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:03,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:06:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:03,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:06:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:03,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:06:03,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:06:03,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483888762] [2024-10-12 21:06:03,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483888762] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:06:03,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:06:03,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:06:03,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40229722] [2024-10-12 21:06:03,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:06:03,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:06:03,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:06:03,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:06:03,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:06:03,822 INFO L87 Difference]: Start difference. First operand 8103 states and 13615 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:06:05,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:06:05,496 INFO L93 Difference]: Finished difference Result 16213 states and 27056 transitions. [2024-10-12 21:06:05,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 21:06:05,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:06:05,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:06:05,520 INFO L225 Difference]: With dead ends: 16213 [2024-10-12 21:06:05,520 INFO L226 Difference]: Without dead ends: 10250 [2024-10-12 21:06:05,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-12 21:06:05,536 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5277 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5298 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:06:05,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5298 Valid, 16750 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 21:06:05,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10250 states. [2024-10-12 21:06:05,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10250 to 8103. [2024-10-12 21:06:05,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8103 states, 7604 states have (on average 1.675828511309837) internal successors, (12743), 7622 states have internal predecessors, (12743), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-10-12 21:06:05,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8103 states to 8103 states and 13598 transitions. [2024-10-12 21:06:05,964 INFO L78 Accepts]: Start accepts. Automaton has 8103 states and 13598 transitions. Word has length 171 [2024-10-12 21:06:05,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:06:05,966 INFO L471 AbstractCegarLoop]: Abstraction has 8103 states and 13598 transitions. [2024-10-12 21:06:05,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:06:05,966 INFO L276 IsEmpty]: Start isEmpty. Operand 8103 states and 13598 transitions. [2024-10-12 21:06:05,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:06:05,971 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:06:05,971 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:06:05,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 21:06:05,972 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:06:05,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:06:05,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1100164275, now seen corresponding path program 1 times [2024-10-12 21:06:05,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:06:05,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818227732] [2024-10-12 21:06:05,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:06:05,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:06:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:06,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:06:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:06,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:06:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:06,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:06:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:06,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:06:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:06,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:06:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:06,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:06:06,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:06:06,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818227732] [2024-10-12 21:06:06,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818227732] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:06:06,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:06:06,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:06:06,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497673300] [2024-10-12 21:06:06,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:06:06,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:06:06,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:06:06,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:06:06,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:06:06,208 INFO L87 Difference]: Start difference. First operand 8103 states and 13598 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:06:08,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:06:08,216 INFO L93 Difference]: Finished difference Result 16195 states and 26969 transitions. [2024-10-12 21:06:08,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 21:06:08,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:06:08,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:06:08,242 INFO L225 Difference]: With dead ends: 16195 [2024-10-12 21:06:08,242 INFO L226 Difference]: Without dead ends: 10232 [2024-10-12 21:06:08,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-12 21:06:08,259 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 5112 mSDsluCounter, 16655 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5133 SdHoareTripleChecker+Valid, 20880 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 21:06:08,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5133 Valid, 20880 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 21:06:08,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10232 states. [2024-10-12 21:06:08,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10232 to 8103. [2024-10-12 21:06:08,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8103 states, 7604 states have (on average 1.6735928458705944) internal successors, (12726), 7622 states have internal predecessors, (12726), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-10-12 21:06:08,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8103 states to 8103 states and 13581 transitions. [2024-10-12 21:06:08,584 INFO L78 Accepts]: Start accepts. Automaton has 8103 states and 13581 transitions. Word has length 171 [2024-10-12 21:06:08,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:06:08,584 INFO L471 AbstractCegarLoop]: Abstraction has 8103 states and 13581 transitions. [2024-10-12 21:06:08,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:06:08,584 INFO L276 IsEmpty]: Start isEmpty. Operand 8103 states and 13581 transitions. [2024-10-12 21:06:08,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:06:08,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:06:08,588 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:06:08,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 21:06:08,588 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:06:08,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:06:08,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1030516401, now seen corresponding path program 1 times [2024-10-12 21:06:08,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:06:08,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261810886] [2024-10-12 21:06:08,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:06:08,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:06:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:08,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:06:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:08,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:06:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:08,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:06:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:08,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:06:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:08,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:06:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:08,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:06:08,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:06:08,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261810886] [2024-10-12 21:06:08,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261810886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:06:08,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:06:08,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:06:08,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891685289] [2024-10-12 21:06:08,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:06:08,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:06:08,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:06:08,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:06:08,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:06:08,788 INFO L87 Difference]: Start difference. First operand 8103 states and 13581 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:06:12,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:06:12,334 INFO L93 Difference]: Finished difference Result 23459 states and 38713 transitions. [2024-10-12 21:06:12,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 21:06:12,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:06:12,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:06:12,378 INFO L225 Difference]: With dead ends: 23459 [2024-10-12 21:06:12,379 INFO L226 Difference]: Without dead ends: 17496 [2024-10-12 21:06:12,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-12 21:06:12,399 INFO L432 NwaCegarLoop]: 4447 mSDtfsCounter, 5542 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3768 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-12 21:06:12,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 21910 Invalid, 3833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3768 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-12 21:06:12,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17496 states. [2024-10-12 21:06:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17496 to 13771. [2024-10-12 21:06:13,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13771 states, 12808 states have (on average 1.6400687070580886) internal successors, (21006), 12842 states have internal predecessors, (21006), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-10-12 21:06:13,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13771 states to 13771 states and 22743 transitions. [2024-10-12 21:06:13,108 INFO L78 Accepts]: Start accepts. Automaton has 13771 states and 22743 transitions. Word has length 171 [2024-10-12 21:06:13,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:06:13,108 INFO L471 AbstractCegarLoop]: Abstraction has 13771 states and 22743 transitions. [2024-10-12 21:06:13,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:06:13,108 INFO L276 IsEmpty]: Start isEmpty. Operand 13771 states and 22743 transitions. [2024-10-12 21:06:13,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:06:13,114 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:06:13,114 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:06:13,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 21:06:13,115 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:06:13,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:06:13,115 INFO L85 PathProgramCache]: Analyzing trace with hash -612627699, now seen corresponding path program 1 times [2024-10-12 21:06:13,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:06:13,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145892779] [2024-10-12 21:06:13,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:06:13,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:06:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:13,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:06:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:13,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:06:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:13,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:06:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:13,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:06:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:13,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:06:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:13,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:06:13,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:06:13,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145892779] [2024-10-12 21:06:13,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145892779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:06:13,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:06:13,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:06:13,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684554423] [2024-10-12 21:06:13,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:06:13,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:06:13,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:06:13,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:06:13,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:06:13,311 INFO L87 Difference]: Start difference. First operand 13771 states and 22743 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:06:17,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:06:17,589 INFO L93 Difference]: Finished difference Result 49061 states and 80615 transitions. [2024-10-12 21:06:17,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-12 21:06:17,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:06:17,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:06:17,691 INFO L225 Difference]: With dead ends: 49061 [2024-10-12 21:06:17,691 INFO L226 Difference]: Without dead ends: 37430 [2024-10-12 21:06:17,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-12 21:06:17,732 INFO L432 NwaCegarLoop]: 4249 mSDtfsCounter, 6106 mSDsluCounter, 16918 mSDsCounter, 0 mSdLazyCounter, 3161 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6140 SdHoareTripleChecker+Valid, 21167 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-12 21:06:17,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6140 Valid, 21167 Invalid, 3267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3161 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-12 21:06:17,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37430 states. [2024-10-12 21:06:19,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37430 to 25068. [2024-10-12 21:06:19,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25068 states, 23209 states have (on average 1.6186824076866733) internal successors, (37568), 23275 states have internal predecessors, (37568), 1403 states have call successors, (1403), 390 states have call predecessors, (1403), 454 states have return successors, (2196), 1466 states have call predecessors, (2196), 1403 states have call successors, (2196) [2024-10-12 21:06:19,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25068 states to 25068 states and 41167 transitions. [2024-10-12 21:06:19,096 INFO L78 Accepts]: Start accepts. Automaton has 25068 states and 41167 transitions. Word has length 171 [2024-10-12 21:06:19,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:06:19,096 INFO L471 AbstractCegarLoop]: Abstraction has 25068 states and 41167 transitions. [2024-10-12 21:06:19,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:06:19,096 INFO L276 IsEmpty]: Start isEmpty. Operand 25068 states and 41167 transitions. [2024-10-12 21:06:19,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:06:19,107 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:06:19,107 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:06:19,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 21:06:19,108 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:06:19,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:06:19,108 INFO L85 PathProgramCache]: Analyzing trace with hash 786325903, now seen corresponding path program 1 times [2024-10-12 21:06:19,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:06:19,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680585487] [2024-10-12 21:06:19,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:06:19,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:06:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:19,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:06:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:19,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:06:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:19,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:06:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:19,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:06:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:19,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:06:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:19,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:06:19,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:06:19,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680585487] [2024-10-12 21:06:19,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680585487] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:06:19,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:06:19,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:06:19,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272843802] [2024-10-12 21:06:19,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:06:19,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:06:19,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:06:19,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:06:19,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:06:19,298 INFO L87 Difference]: Start difference. First operand 25068 states and 41167 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:06:25,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:06:25,838 INFO L93 Difference]: Finished difference Result 94116 states and 155021 transitions. [2024-10-12 21:06:25,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-12 21:06:25,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:06:25,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:06:26,034 INFO L225 Difference]: With dead ends: 94116 [2024-10-12 21:06:26,034 INFO L226 Difference]: Without dead ends: 71188 [2024-10-12 21:06:26,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-12 21:06:26,095 INFO L432 NwaCegarLoop]: 4444 mSDtfsCounter, 5649 mSDsluCounter, 17455 mSDsCounter, 0 mSdLazyCounter, 4464 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5668 SdHoareTripleChecker+Valid, 21899 SdHoareTripleChecker+Invalid, 4531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-12 21:06:26,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5668 Valid, 21899 Invalid, 4531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 4464 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-12 21:06:26,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71188 states. [2024-10-12 21:06:29,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71188 to 47341. [2024-10-12 21:06:29,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47341 states, 43722 states have (on average 1.6065596267325375) internal successors, (70242), 43852 states have internal predecessors, (70242), 2715 states have call successors, (2715), 774 states have call predecessors, (2715), 902 states have return successors, (5030), 2842 states have call predecessors, (5030), 2715 states have call successors, (5030) [2024-10-12 21:06:29,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47341 states to 47341 states and 77987 transitions. [2024-10-12 21:06:29,195 INFO L78 Accepts]: Start accepts. Automaton has 47341 states and 77987 transitions. Word has length 171 [2024-10-12 21:06:29,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 21:06:29,196 INFO L471 AbstractCegarLoop]: Abstraction has 47341 states and 77987 transitions. [2024-10-12 21:06:29,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:06:29,196 INFO L276 IsEmpty]: Start isEmpty. Operand 47341 states and 77987 transitions. [2024-10-12 21:06:29,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-12 21:06:29,214 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 21:06:29,214 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 21:06:29,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 21:06:29,214 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 21:06:29,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 21:06:29,214 INFO L85 PathProgramCache]: Analyzing trace with hash -831114547, now seen corresponding path program 1 times [2024-10-12 21:06:29,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 21:06:29,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106851859] [2024-10-12 21:06:29,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 21:06:29,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 21:06:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:29,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 21:06:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:29,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 21:06:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:29,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 21:06:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:29,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-12 21:06:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:29,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 21:06:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 21:06:29,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 21:06:29,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 21:06:29,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106851859] [2024-10-12 21:06:29,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106851859] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 21:06:29,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 21:06:29,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 21:06:29,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953701308] [2024-10-12 21:06:29,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 21:06:29,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 21:06:29,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 21:06:29,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 21:06:29,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 21:06:29,419 INFO L87 Difference]: Start difference. First operand 47341 states and 77987 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 21:06:39,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 21:06:39,788 INFO L93 Difference]: Finished difference Result 182371 states and 302579 transitions. [2024-10-12 21:06:39,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-12 21:06:39,789 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2024-10-12 21:06:39,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 21:06:40,190 INFO L225 Difference]: With dead ends: 182371 [2024-10-12 21:06:40,190 INFO L226 Difference]: Without dead ends: 137170 [2024-10-12 21:06:40,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-12 21:06:40,299 INFO L432 NwaCegarLoop]: 4445 mSDtfsCounter, 5938 mSDsluCounter, 17458 mSDsCounter, 0 mSdLazyCounter, 3719 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5972 SdHoareTripleChecker+Valid, 21903 SdHoareTripleChecker+Invalid, 3787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-12 21:06:40,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5972 Valid, 21903 Invalid, 3787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3719 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-12 21:06:40,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137170 states. [2024-10-12 21:06:46,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137170 to 92206. [2024-10-12 21:06:46,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92206 states, 85131 states have (on average 1.6002161374822332) internal successors, (136228), 85389 states have internal predecessors, (136228), 5275 states have call successors, (5275), 1542 states have call predecessors, (5275), 1798 states have return successors, (12092), 5530 states have call predecessors, (12092), 5275 states have call successors, (12092) [2024-10-12 21:06:46,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92206 states to 92206 states and 153595 transitions.