./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label40+token_ring.05.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/combinations/Problem05_label40+token_ring.05.cil-1.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 e270b9f7665b1c8abbbdbbd0440b4b4aa4509b75796aa73b96f40d2382c01832 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:30:14,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:30:14,376 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:30:14,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:30:14,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:30:14,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:30:14,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:30:14,415 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:30:14,416 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:30:14,416 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:30:14,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:30:14,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:30:14,418 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:30:14,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:30:14,423 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:30:14,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:30:14,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:30:14,425 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:30:14,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:30:14,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:30:14,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:30:14,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:30:14,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:30:14,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:30:14,427 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:30:14,428 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:30:14,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:30:14,428 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:30:14,428 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:30:14,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:30:14,429 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:30:14,429 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:30:14,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:30:14,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:30:14,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:30:14,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:30:14,430 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:30:14,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:30:14,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:30:14,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:30:14,431 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:30:14,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:30:14,431 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e270b9f7665b1c8abbbdbbd0440b4b4aa4509b75796aa73b96f40d2382c01832 [2024-11-18 15:30:14,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:30:14,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:30:14,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:30:14,652 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:30:14,652 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:30:14,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label40+token_ring.05.cil-1.c [2024-11-18 15:30:15,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:30:16,283 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:30:16,285 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.05.cil-1.c [2024-11-18 15:30:16,335 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce141590e/b8783048f43547c696763e319dd693c4/FLAG7ed8f87fe [2024-11-18 15:30:16,370 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce141590e/b8783048f43547c696763e319dd693c4 [2024-11-18 15:30:16,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:30:16,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:30:16,379 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:30:16,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:30:16,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:30:16,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:30:16" (1/1) ... [2024-11-18 15:30:16,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55694a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:16, skipping insertion in model container [2024-11-18 15:30:16,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:30:16" (1/1) ... [2024-11-18 15:30:16,526 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:30:17,742 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.05.cil-1.c[377069,377082] [2024-11-18 15:30:17,767 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.05.cil-1.c[383339,383352] [2024-11-18 15:30:17,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:30:17,946 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:30:18,517 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.05.cil-1.c[377069,377082] [2024-11-18 15:30:18,523 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.05.cil-1.c[383339,383352] [2024-11-18 15:30:18,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:30:18,575 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:30:18,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18 WrapperNode [2024-11-18 15:30:18,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:30:18,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:30:18,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:30:18,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:30:18,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18" (1/1) ... [2024-11-18 15:30:18,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18" (1/1) ... [2024-11-18 15:30:18,930 INFO L138 Inliner]: procedures = 54, calls = 56, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 12813 [2024-11-18 15:30:18,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:30:18,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:30:18,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:30:18,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:30:18,940 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18" (1/1) ... [2024-11-18 15:30:18,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18" (1/1) ... [2024-11-18 15:30:18,991 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18" (1/1) ... [2024-11-18 15:30:19,053 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]. [2024-11-18 15:30:19,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18" (1/1) ... [2024-11-18 15:30:19,054 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18" (1/1) ... [2024-11-18 15:30:19,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18" (1/1) ... [2024-11-18 15:30:19,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18" (1/1) ... [2024-11-18 15:30:19,257 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18" (1/1) ... [2024-11-18 15:30:19,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18" (1/1) ... [2024-11-18 15:30:19,319 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:30:19,320 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:30:19,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:30:19,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:30:19,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18" (1/1) ... [2024-11-18 15:30:19,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:30:19,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:30:19,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 15:30:19,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 15:30:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:30:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-18 15:30:19,386 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-18 15:30:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 15:30:19,387 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 15:30:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-18 15:30:19,387 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-18 15:30:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-18 15:30:19,387 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-18 15:30:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-18 15:30:19,387 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-18 15:30:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-18 15:30:19,387 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-18 15:30:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:30:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:30:19,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:30:19,474 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:30:19,476 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:30:25,030 INFO L? ?]: Removed 1713 outVars from TransFormulas that were not future-live. [2024-11-18 15:30:25,030 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:30:25,071 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:30:25,071 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-18 15:30:25,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:30:25 BoogieIcfgContainer [2024-11-18 15:30:25,072 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:30:25,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:30:25,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:30:25,076 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:30:25,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:30:16" (1/3) ... [2024-11-18 15:30:25,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c0865ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:30:25, skipping insertion in model container [2024-11-18 15:30:25,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:30:18" (2/3) ... [2024-11-18 15:30:25,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c0865ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:30:25, skipping insertion in model container [2024-11-18 15:30:25,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:30:25" (3/3) ... [2024-11-18 15:30:25,078 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.05.cil-1.c [2024-11-18 15:30:25,154 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:30:25,154 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 15:30:25,257 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:30:25,263 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;@2de5a3b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:30:25,263 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 15:30:25,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 2396 states, 2368 states have (on average 1.8505067567567568) internal successors, (4382), 2371 states have internal predecessors, (4382), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-18 15:30:25,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:30:25,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:30:25,287 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] [2024-11-18 15:30:25,287 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:30:25,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:30:25,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1103952823, now seen corresponding path program 1 times [2024-11-18 15:30:25,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:30:25,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197539129] [2024-11-18 15:30:25,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:30:25,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:30:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:30:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:30:25,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:30:25,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197539129] [2024-11-18 15:30:25,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197539129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:30:25,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:30:25,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:30:25,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107852235] [2024-11-18 15:30:25,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:30:25,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:30:25,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:30:25,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:30:25,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:30:25,597 INFO L87 Difference]: Start difference. First operand has 2396 states, 2368 states have (on average 1.8505067567567568) internal successors, (4382), 2371 states have internal predecessors, (4382), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:25,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:30:25,762 INFO L93 Difference]: Finished difference Result 4784 states and 8825 transitions. [2024-11-18 15:30:25,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:30:25,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 1 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 101 [2024-11-18 15:30:25,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:30:25,788 INFO L225 Difference]: With dead ends: 4784 [2024-11-18 15:30:25,788 INFO L226 Difference]: Without dead ends: 2329 [2024-11-18 15:30:25,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:30:25,803 INFO L432 NwaCegarLoop]: 4339 mSDtfsCounter, 310 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 8361 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:30:25,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 8361 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:30:25,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-11-18 15:30:25,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2024-11-18 15:30:25,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2302 states have (on average 1.8388357949609035) internal successors, (4233), 2304 states have internal predecessors, (4233), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-18 15:30:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4271 transitions. [2024-11-18 15:30:25,923 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4271 transitions. Word has length 101 [2024-11-18 15:30:25,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:30:25,924 INFO L471 AbstractCegarLoop]: Abstraction has 2329 states and 4271 transitions. [2024-11-18 15:30:25,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:25,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4271 transitions. [2024-11-18 15:30:25,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:30:25,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:30:25,930 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] [2024-11-18 15:30:25,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:30:25,931 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:30:25,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:30:25,933 INFO L85 PathProgramCache]: Analyzing trace with hash -773110407, now seen corresponding path program 1 times [2024-11-18 15:30:25,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:30:25,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681328257] [2024-11-18 15:30:25,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:30:25,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:30:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:30:26,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:30:26,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:30:26,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681328257] [2024-11-18 15:30:26,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681328257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:30:26,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:30:26,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:30:26,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444211100] [2024-11-18 15:30:26,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:30:26,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:30:26,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:30:26,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:30:26,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:30:26,168 INFO L87 Difference]: Start difference. First operand 2329 states and 4271 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:26,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:30:26,598 INFO L93 Difference]: Finished difference Result 2739 states and 4899 transitions. [2024-11-18 15:30:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:30:26,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 101 [2024-11-18 15:30:26,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:30:26,612 INFO L225 Difference]: With dead ends: 2739 [2024-11-18 15:30:26,612 INFO L226 Difference]: Without dead ends: 2544 [2024-11-18 15:30:26,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:30:26,615 INFO L432 NwaCegarLoop]: 4201 mSDtfsCounter, 4519 mSDsluCounter, 8524 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4532 SdHoareTripleChecker+Valid, 12725 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:30:26,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4532 Valid, 12725 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:30:26,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2024-11-18 15:30:26,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2529. [2024-11-18 15:30:26,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2481 states have (on average 1.8170092704554615) internal successors, (4508), 2484 states have internal predecessors, (4508), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2024-11-18 15:30:26,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 4575 transitions. [2024-11-18 15:30:26,675 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 4575 transitions. Word has length 101 [2024-11-18 15:30:26,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:30:26,675 INFO L471 AbstractCegarLoop]: Abstraction has 2529 states and 4575 transitions. [2024-11-18 15:30:26,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:26,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 4575 transitions. [2024-11-18 15:30:26,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:30:26,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:30:26,678 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] [2024-11-18 15:30:26,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:30:26,679 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:30:26,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:30:26,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1804972285, now seen corresponding path program 1 times [2024-11-18 15:30:26,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:30:26,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138180493] [2024-11-18 15:30:26,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:30:26,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:30:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:30:26,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:30:26,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:30:26,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138180493] [2024-11-18 15:30:26,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138180493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:30:26,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:30:26,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:30:26,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413734673] [2024-11-18 15:30:26,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:30:26,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:30:26,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:30:26,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:30:26,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:30:26,849 INFO L87 Difference]: Start difference. First operand 2529 states and 4575 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:27,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:30:27,387 INFO L93 Difference]: Finished difference Result 3174 states and 5568 transitions. [2024-11-18 15:30:27,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:30:27,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 101 [2024-11-18 15:30:27,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:30:27,399 INFO L225 Difference]: With dead ends: 3174 [2024-11-18 15:30:27,400 INFO L226 Difference]: Without dead ends: 2779 [2024-11-18 15:30:27,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:30:27,404 INFO L432 NwaCegarLoop]: 4363 mSDtfsCounter, 4515 mSDsluCounter, 13088 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4528 SdHoareTripleChecker+Valid, 17451 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:30:27,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4528 Valid, 17451 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:30:27,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2024-11-18 15:30:27,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2716. [2024-11-18 15:30:27,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2647 states have (on average 1.797128825085002) internal successors, (4757), 2651 states have internal predecessors, (4757), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-18 15:30:27,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 4855 transitions. [2024-11-18 15:30:27,484 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 4855 transitions. Word has length 101 [2024-11-18 15:30:27,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:30:27,485 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 4855 transitions. [2024-11-18 15:30:27,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:27,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 4855 transitions. [2024-11-18 15:30:27,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:30:27,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:30:27,487 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] [2024-11-18 15:30:27,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:30:27,487 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:30:27,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:30:27,490 INFO L85 PathProgramCache]: Analyzing trace with hash -74158661, now seen corresponding path program 1 times [2024-11-18 15:30:27,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:30:27,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745269936] [2024-11-18 15:30:27,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:30:27,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:30:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:30:27,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:30:27,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:30:27,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745269936] [2024-11-18 15:30:27,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745269936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:30:27,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:30:27,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:30:27,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593517046] [2024-11-18 15:30:27,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:30:27,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:30:27,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:30:27,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:30:27,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:30:27,635 INFO L87 Difference]: Start difference. First operand 2716 states and 4855 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:28,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:30:28,100 INFO L93 Difference]: Finished difference Result 3755 states and 6447 transitions. [2024-11-18 15:30:28,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:30:28,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 101 [2024-11-18 15:30:28,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:30:28,111 INFO L225 Difference]: With dead ends: 3755 [2024-11-18 15:30:28,112 INFO L226 Difference]: Without dead ends: 3173 [2024-11-18 15:30:28,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:30:28,114 INFO L432 NwaCegarLoop]: 4355 mSDtfsCounter, 4507 mSDsluCounter, 13066 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 17421 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:30:28,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4520 Valid, 17421 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:30:28,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3173 states. [2024-11-18 15:30:28,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3173 to 3108. [2024-11-18 15:30:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3108 states, 2995 states have (on average 1.7642737896494156) internal successors, (5284), 3003 states have internal predecessors, (5284), 75 states have call successors, (75), 30 states have call predecessors, (75), 36 states have return successors, (91), 78 states have call predecessors, (91), 75 states have call successors, (91) [2024-11-18 15:30:28,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 5450 transitions. [2024-11-18 15:30:28,291 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 5450 transitions. Word has length 101 [2024-11-18 15:30:28,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:30:28,292 INFO L471 AbstractCegarLoop]: Abstraction has 3108 states and 5450 transitions. [2024-11-18 15:30:28,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:28,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 5450 transitions. [2024-11-18 15:30:28,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:30:28,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:30:28,294 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] [2024-11-18 15:30:28,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:30:28,294 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:30:28,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:30:28,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1492599289, now seen corresponding path program 1 times [2024-11-18 15:30:28,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:30:28,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349588253] [2024-11-18 15:30:28,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:30:28,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:30:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:30:28,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:30:28,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:30:28,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349588253] [2024-11-18 15:30:28,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349588253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:30:28,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:30:28,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:30:28,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881253102] [2024-11-18 15:30:28,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:30:28,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:30:28,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:30:28,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:30:28,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:30:28,400 INFO L87 Difference]: Start difference. First operand 3108 states and 5450 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:28,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:30:28,831 INFO L93 Difference]: Finished difference Result 4995 states and 8364 transitions. [2024-11-18 15:30:28,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:30:28,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 101 [2024-11-18 15:30:28,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:30:28,845 INFO L225 Difference]: With dead ends: 4995 [2024-11-18 15:30:28,845 INFO L226 Difference]: Without dead ends: 4021 [2024-11-18 15:30:28,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:30:28,849 INFO L432 NwaCegarLoop]: 4352 mSDtfsCounter, 4502 mSDsluCounter, 13057 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4515 SdHoareTripleChecker+Valid, 17409 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:30:28,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4515 Valid, 17409 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:30:28,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2024-11-18 15:30:28,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 3943. [2024-11-18 15:30:28,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3943 states, 3736 states have (on average 1.7184154175588866) internal successors, (6420), 3758 states have internal predecessors, (6420), 131 states have call successors, (131), 54 states have call predecessors, (131), 74 states have return successors, (195), 138 states have call predecessors, (195), 131 states have call successors, (195) [2024-11-18 15:30:28,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 6746 transitions. [2024-11-18 15:30:28,951 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 6746 transitions. Word has length 101 [2024-11-18 15:30:28,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:30:28,951 INFO L471 AbstractCegarLoop]: Abstraction has 3943 states and 6746 transitions. [2024-11-18 15:30:28,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:28,952 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 6746 transitions. [2024-11-18 15:30:28,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:30:28,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:30:28,953 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] [2024-11-18 15:30:28,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:30:28,954 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:30:28,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:30:28,954 INFO L85 PathProgramCache]: Analyzing trace with hash 434761211, now seen corresponding path program 1 times [2024-11-18 15:30:28,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:30:28,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772728151] [2024-11-18 15:30:28,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:30:28,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:30:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:30:29,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:30:29,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:30:29,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772728151] [2024-11-18 15:30:29,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772728151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:30:29,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:30:29,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:30:29,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743658837] [2024-11-18 15:30:29,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:30:29,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:30:29,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:30:29,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:30:29,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:30:29,038 INFO L87 Difference]: Start difference. First operand 3943 states and 6746 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:29,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:30:29,518 INFO L93 Difference]: Finished difference Result 7660 states and 12610 transitions. [2024-11-18 15:30:29,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:30:29,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 101 [2024-11-18 15:30:29,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:30:29,538 INFO L225 Difference]: With dead ends: 7660 [2024-11-18 15:30:29,539 INFO L226 Difference]: Without dead ends: 5851 [2024-11-18 15:30:29,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:30:29,546 INFO L432 NwaCegarLoop]: 4349 mSDtfsCounter, 4497 mSDsluCounter, 13048 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4510 SdHoareTripleChecker+Valid, 17397 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:30:29,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4510 Valid, 17397 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:30:29,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5851 states. [2024-11-18 15:30:29,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5851 to 5748. [2024-11-18 15:30:29,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 5335 states have (on average 1.6689784442361761) internal successors, (8904), 5403 states have internal predecessors, (8904), 243 states have call successors, (243), 102 states have call predecessors, (243), 168 states have return successors, (499), 258 states have call predecessors, (499), 243 states have call successors, (499) [2024-11-18 15:30:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 9646 transitions. [2024-11-18 15:30:29,724 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 9646 transitions. Word has length 101 [2024-11-18 15:30:29,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:30:29,725 INFO L471 AbstractCegarLoop]: Abstraction has 5748 states and 9646 transitions. [2024-11-18 15:30:29,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:29,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 9646 transitions. [2024-11-18 15:30:29,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:30:29,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:30:29,728 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] [2024-11-18 15:30:29,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:30:29,729 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:30:29,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:30:29,729 INFO L85 PathProgramCache]: Analyzing trace with hash -707741255, now seen corresponding path program 1 times [2024-11-18 15:30:29,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:30:29,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099556903] [2024-11-18 15:30:29,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:30:29,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:30:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:30:29,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:30:29,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:30:29,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099556903] [2024-11-18 15:30:29,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099556903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:30:29,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:30:29,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:30:29,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964010468] [2024-11-18 15:30:29,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:30:29,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:30:29,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:30:29,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:30:29,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:30:29,905 INFO L87 Difference]: Start difference. First operand 5748 states and 9646 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:30,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:30:30,479 INFO L93 Difference]: Finished difference Result 14111 states and 23277 transitions. [2024-11-18 15:30:30,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:30:30,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 101 [2024-11-18 15:30:30,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:30:30,517 INFO L225 Difference]: With dead ends: 14111 [2024-11-18 15:30:30,517 INFO L226 Difference]: Without dead ends: 10497 [2024-11-18 15:30:30,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:30:30,532 INFO L432 NwaCegarLoop]: 4208 mSDtfsCounter, 4681 mSDsluCounter, 12709 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4700 SdHoareTripleChecker+Valid, 16917 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:30:30,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4700 Valid, 16917 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:30:30,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10497 states. [2024-11-18 15:30:30,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10497 to 9661. [2024-11-18 15:30:30,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9661 states, 8798 states have (on average 1.6335530802455103) internal successors, (14372), 9012 states have internal predecessors, (14372), 451 states have call successors, (451), 198 states have call predecessors, (451), 410 states have return successors, (1475), 482 states have call predecessors, (1475), 451 states have call successors, (1475) [2024-11-18 15:30:30,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9661 states to 9661 states and 16298 transitions. [2024-11-18 15:30:30,837 INFO L78 Accepts]: Start accepts. Automaton has 9661 states and 16298 transitions. Word has length 101 [2024-11-18 15:30:30,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:30:30,837 INFO L471 AbstractCegarLoop]: Abstraction has 9661 states and 16298 transitions. [2024-11-18 15:30:30,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:30,838 INFO L276 IsEmpty]: Start isEmpty. Operand 9661 states and 16298 transitions. [2024-11-18 15:30:30,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:30:30,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:30:30,844 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] [2024-11-18 15:30:30,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:30:30,845 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:30:30,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:30:30,845 INFO L85 PathProgramCache]: Analyzing trace with hash -467501509, now seen corresponding path program 1 times [2024-11-18 15:30:30,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:30:30,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924887897] [2024-11-18 15:30:30,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:30:30,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:30:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:30:30,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:30:30,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:30:30,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924887897] [2024-11-18 15:30:30,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924887897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:30:30,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:30:30,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:30:30,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237129587] [2024-11-18 15:30:30,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:30:30,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:30:30,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:30:30,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:30:30,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:30:30,939 INFO L87 Difference]: Start difference. First operand 9661 states and 16298 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:31,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:30:31,830 INFO L93 Difference]: Finished difference Result 27202 states and 46795 transitions. [2024-11-18 15:30:31,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:30:31,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 101 [2024-11-18 15:30:31,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:30:31,897 INFO L225 Difference]: With dead ends: 27202 [2024-11-18 15:30:31,897 INFO L226 Difference]: Without dead ends: 19675 [2024-11-18 15:30:31,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:30:31,930 INFO L432 NwaCegarLoop]: 4340 mSDtfsCounter, 4529 mSDsluCounter, 13016 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4541 SdHoareTripleChecker+Valid, 17356 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:30:31,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4541 Valid, 17356 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:30:31,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19675 states. [2024-11-18 15:30:32,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19675 to 18170. [2024-11-18 15:30:32,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18170 states, 16261 states have (on average 1.6173667056146608) internal successors, (26300), 16929 states have internal predecessors, (26300), 851 states have call successors, (851), 390 states have call predecessors, (851), 1056 states have return successors, (4947), 914 states have call predecessors, (4947), 851 states have call successors, (4947) [2024-11-18 15:30:32,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18170 states to 18170 states and 32098 transitions. [2024-11-18 15:30:32,997 INFO L78 Accepts]: Start accepts. Automaton has 18170 states and 32098 transitions. Word has length 101 [2024-11-18 15:30:32,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:30:32,997 INFO L471 AbstractCegarLoop]: Abstraction has 18170 states and 32098 transitions. [2024-11-18 15:30:32,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:32,997 INFO L276 IsEmpty]: Start isEmpty. Operand 18170 states and 32098 transitions. [2024-11-18 15:30:33,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:30:33,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:30:33,008 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] [2024-11-18 15:30:33,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:30:33,008 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:30:33,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:30:33,009 INFO L85 PathProgramCache]: Analyzing trace with hash 371532153, now seen corresponding path program 1 times [2024-11-18 15:30:33,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:30:33,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705409434] [2024-11-18 15:30:33,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:30:33,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:30:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:30:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:30:33,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:30:33,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705409434] [2024-11-18 15:30:33,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705409434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:30:33,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:30:33,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:30:33,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373435630] [2024-11-18 15:30:33,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:30:33,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:30:33,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:30:33,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:30:33,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:30:33,117 INFO L87 Difference]: Start difference. First operand 18170 states and 32098 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:34,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:30:34,632 INFO L93 Difference]: Finished difference Result 55681 states and 104417 transitions. [2024-11-18 15:30:34,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:30:34,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 101 [2024-11-18 15:30:34,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:30:34,814 INFO L225 Difference]: With dead ends: 55681 [2024-11-18 15:30:34,814 INFO L226 Difference]: Without dead ends: 39645 [2024-11-18 15:30:34,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:30:34,935 INFO L432 NwaCegarLoop]: 4338 mSDtfsCounter, 4586 mSDsluCounter, 13010 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4605 SdHoareTripleChecker+Valid, 17348 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:30:34,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4605 Valid, 17348 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:30:34,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39645 states. [2024-11-18 15:30:36,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39645 to 37439. [2024-11-18 15:30:36,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37439 states, 32984 states have (on average 1.6138733931603202) internal successors, (53232), 35046 states have internal predecessors, (53232), 1619 states have call successors, (1619), 774 states have call predecessors, (1619), 2834 states have return successors, (18003), 1746 states have call predecessors, (18003), 1619 states have call successors, (18003) [2024-11-18 15:30:36,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37439 states to 37439 states and 72854 transitions. [2024-11-18 15:30:36,750 INFO L78 Accepts]: Start accepts. Automaton has 37439 states and 72854 transitions. Word has length 101 [2024-11-18 15:30:36,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:30:36,751 INFO L471 AbstractCegarLoop]: Abstraction has 37439 states and 72854 transitions. [2024-11-18 15:30:36,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:36,751 INFO L276 IsEmpty]: Start isEmpty. Operand 37439 states and 72854 transitions. [2024-11-18 15:30:36,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:30:36,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:30:36,768 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] [2024-11-18 15:30:36,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:30:36,769 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:30:36,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:30:36,772 INFO L85 PathProgramCache]: Analyzing trace with hash 398597755, now seen corresponding path program 1 times [2024-11-18 15:30:36,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:30:36,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727394273] [2024-11-18 15:30:36,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:30:36,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:30:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:30:36,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:30:36,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:30:36,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727394273] [2024-11-18 15:30:36,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727394273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:30:36,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:30:36,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:30:36,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055943762] [2024-11-18 15:30:36,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:30:36,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:30:36,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:30:36,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:30:36,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:30:36,850 INFO L87 Difference]: Start difference. First operand 37439 states and 72854 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:40,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:30:40,868 INFO L93 Difference]: Finished difference Result 119548 states and 258559 transitions. [2024-11-18 15:30:40,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:30:40,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 101 [2024-11-18 15:30:40,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:30:41,281 INFO L225 Difference]: With dead ends: 119548 [2024-11-18 15:30:41,281 INFO L226 Difference]: Without dead ends: 84243 [2024-11-18 15:30:41,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:30:41,368 INFO L432 NwaCegarLoop]: 4335 mSDtfsCounter, 4551 mSDsluCounter, 13001 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4570 SdHoareTripleChecker+Valid, 17336 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:30:41,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4570 Valid, 17336 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:30:41,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84243 states. [2024-11-18 15:30:46,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84243 to 80888. [2024-11-18 15:30:46,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80888 states, 69947 states have (on average 1.6117345990535692) internal successors, (112736), 76255 states have internal predecessors, (112736), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 7848 states have return successors, (68627), 3346 states have call predecessors, (68627), 3091 states have call successors, (68627) [2024-11-18 15:30:46,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80888 states to 80888 states and 184454 transitions. [2024-11-18 15:30:46,821 INFO L78 Accepts]: Start accepts. Automaton has 80888 states and 184454 transitions. Word has length 101 [2024-11-18 15:30:46,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:30:46,821 INFO L471 AbstractCegarLoop]: Abstraction has 80888 states and 184454 transitions. [2024-11-18 15:30:46,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:46,822 INFO L276 IsEmpty]: Start isEmpty. Operand 80888 states and 184454 transitions. [2024-11-18 15:30:46,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:30:46,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:30:46,848 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] [2024-11-18 15:30:46,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:30:46,849 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:30:46,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:30:46,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1678739143, now seen corresponding path program 1 times [2024-11-18 15:30:46,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:30:46,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984183838] [2024-11-18 15:30:46,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:30:46,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:30:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:30:46,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:30:46,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:30:46,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984183838] [2024-11-18 15:30:46,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984183838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:30:46,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:30:46,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:30:46,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883650215] [2024-11-18 15:30:46,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:30:46,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:30:46,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:30:46,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:30:46,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:30:46,921 INFO L87 Difference]: Start difference. First operand 80888 states and 184454 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:30:52,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:30:52,465 INFO L93 Difference]: Finished difference Result 172768 states and 437545 transitions. [2024-11-18 15:30:52,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 15:30:52,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 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 101 [2024-11-18 15:30:52,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:30:53,102 INFO L225 Difference]: With dead ends: 172768 [2024-11-18 15:30:53,103 INFO L226 Difference]: Without dead ends: 94014 [2024-11-18 15:30:53,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:30:53,503 INFO L432 NwaCegarLoop]: 4170 mSDtfsCounter, 4351 mSDsluCounter, 8253 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4364 SdHoareTripleChecker+Valid, 12423 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:30:53,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4364 Valid, 12423 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:30:53,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94014 states. [2024-11-18 15:31:01,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94014 to 80888. [2024-11-18 15:31:01,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80888 states, 69947 states have (on average 1.6080603885799247) internal successors, (112479), 76255 states have internal predecessors, (112479), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 7848 states have return successors, (68627), 3346 states have call predecessors, (68627), 3091 states have call successors, (68627) [2024-11-18 15:31:01,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80888 states to 80888 states and 184197 transitions. [2024-11-18 15:31:01,897 INFO L78 Accepts]: Start accepts. Automaton has 80888 states and 184197 transitions. Word has length 101 [2024-11-18 15:31:01,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:31:01,898 INFO L471 AbstractCegarLoop]: Abstraction has 80888 states and 184197 transitions. [2024-11-18 15:31:01,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:31:01,898 INFO L276 IsEmpty]: Start isEmpty. Operand 80888 states and 184197 transitions. [2024-11-18 15:31:01,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:31:01,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:31:01,934 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] [2024-11-18 15:31:01,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:31:01,934 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:31:01,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:31:01,935 INFO L85 PathProgramCache]: Analyzing trace with hash -791516297, now seen corresponding path program 1 times [2024-11-18 15:31:01,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:31:01,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429219529] [2024-11-18 15:31:01,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:31:01,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:31:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:31:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:31:01,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:31:01,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429219529] [2024-11-18 15:31:01,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429219529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:31:01,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:31:01,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:31:01,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394776919] [2024-11-18 15:31:01,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:31:01,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 15:31:01,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:31:01,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 15:31:01,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 15:31:01,986 INFO L87 Difference]: Start difference. First operand 80888 states and 184197 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)