./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.08.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/systemc/token_ring.08.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 42e706fd1a5bd201d46dd2f3322f156b6d900789b8c9ace16cba5458f69fdc62 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:34:42,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:34:42,695 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:34:42,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:34:42,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:34:42,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:34:42,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:34:42,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:34:42,718 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:34:42,719 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:34:42,719 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:34:42,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:34:42,720 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:34:42,720 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:34:42,721 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:34:42,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:34:42,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:34:42,721 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:34:42,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:34:42,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:34:42,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:34:42,723 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:34:42,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:34:42,723 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:34:42,724 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:34:42,724 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:34:42,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:34:42,724 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:34:42,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:34:42,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:34:42,725 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:34:42,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:34:42,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:34:42,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:34:42,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:34:42,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:34:42,727 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:34:42,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:34:42,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:34:42,728 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:34:42,728 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:34:42,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:34:42,729 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42e706fd1a5bd201d46dd2f3322f156b6d900789b8c9ace16cba5458f69fdc62 [2024-11-18 14:34:42,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:34:42,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:34:42,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:34:42,935 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:34:42,935 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:34:42,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.08.cil-1.c [2024-11-18 14:34:44,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:34:44,667 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:34:44,667 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.08.cil-1.c [2024-11-18 14:34:44,680 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5234f6c30/2bee323c91e149eb94857bcb3a01ae65/FLAG99c7c5ff9 [2024-11-18 14:34:44,696 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5234f6c30/2bee323c91e149eb94857bcb3a01ae65 [2024-11-18 14:34:44,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:34:44,701 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:34:44,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:34:44,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:34:44,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:34:44,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:34:44" (1/1) ... [2024-11-18 14:34:44,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b591b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:44, skipping insertion in model container [2024-11-18 14:34:44,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:34:44" (1/1) ... [2024-11-18 14:34:44,754 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:34:44,945 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/systemc/token_ring.08.cil-1.c[671,684] [2024-11-18 14:34:45,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:34:45,093 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:34:45,105 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/systemc/token_ring.08.cil-1.c[671,684] [2024-11-18 14:34:45,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:34:45,247 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:34:45,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45 WrapperNode [2024-11-18 14:34:45,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:34:45,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:34:45,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:34:45,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:34:45,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45" (1/1) ... [2024-11-18 14:34:45,266 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45" (1/1) ... [2024-11-18 14:34:45,312 INFO L138 Inliner]: procedures = 44, calls = 55, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 639 [2024-11-18 14:34:45,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:34:45,317 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:34:45,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:34:45,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:34:45,329 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45" (1/1) ... [2024-11-18 14:34:45,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45" (1/1) ... [2024-11-18 14:34:45,336 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45" (1/1) ... [2024-11-18 14:34:45,362 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 14:34:45,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45" (1/1) ... [2024-11-18 14:34:45,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45" (1/1) ... [2024-11-18 14:34:45,369 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45" (1/1) ... [2024-11-18 14:34:45,376 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45" (1/1) ... [2024-11-18 14:34:45,378 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45" (1/1) ... [2024-11-18 14:34:45,379 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45" (1/1) ... [2024-11-18 14:34:45,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:34:45,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:34:45,384 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:34:45,384 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:34:45,384 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45" (1/1) ... [2024-11-18 14:34:45,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:34:45,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:34:45,424 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 14:34:45,433 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 14:34:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:34:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-18 14:34:45,472 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-18 14:34:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-18 14:34:45,473 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-18 14:34:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 14:34:45,473 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 14:34:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-18 14:34:45,474 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-18 14:34:45,474 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-18 14:34:45,474 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-18 14:34:45,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:34:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-18 14:34:45,475 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-18 14:34:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:34:45,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:34:45,577 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:34:45,579 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:34:46,135 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-18 14:34:46,135 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:34:46,163 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:34:46,163 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-18 14:34:46,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:34:46 BoogieIcfgContainer [2024-11-18 14:34:46,163 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:34:46,165 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:34:46,165 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:34:46,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:34:46,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:34:44" (1/3) ... [2024-11-18 14:34:46,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152d34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:34:46, skipping insertion in model container [2024-11-18 14:34:46,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:34:45" (2/3) ... [2024-11-18 14:34:46,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152d34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:34:46, skipping insertion in model container [2024-11-18 14:34:46,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:34:46" (3/3) ... [2024-11-18 14:34:46,171 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.08.cil-1.c [2024-11-18 14:34:46,183 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:34:46,184 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:34:46,235 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:34:46,241 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;@1c5d9b7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:34:46,241 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:34:46,245 INFO L276 IsEmpty]: Start isEmpty. Operand has 291 states, 261 states have (on average 1.6245210727969348) internal successors, (424), 263 states have internal predecessors, (424), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-18 14:34:46,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 14:34:46,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:34:46,256 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:34:46,257 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:34:46,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:34:46,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1809958066, now seen corresponding path program 1 times [2024-11-18 14:34:46,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:34:46,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054231570] [2024-11-18 14:34:46,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:46,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:34:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:46,674 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 14:34:46,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:34:46,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054231570] [2024-11-18 14:34:46,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054231570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:34:46,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:34:46,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:34:46,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008825897] [2024-11-18 14:34:46,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:34:46,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:34:46,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:34:46,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:34:46,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:34:46,716 INFO L87 Difference]: Start difference. First operand has 291 states, 261 states have (on average 1.6245210727969348) internal successors, (424), 263 states have internal predecessors, (424), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 14:34:46,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:34:46,784 INFO L93 Difference]: Finished difference Result 571 states and 919 transitions. [2024-11-18 14:34:46,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:34:46,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 133 [2024-11-18 14:34:46,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:34:46,796 INFO L225 Difference]: With dead ends: 571 [2024-11-18 14:34:46,799 INFO L226 Difference]: Without dead ends: 286 [2024-11-18 14:34:46,803 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 14:34:46,806 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 434 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 442 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 14:34:46,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 442 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:34:46,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-18 14:34:46,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2024-11-18 14:34:46,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 257 states have (on average 1.5369649805447472) internal successors, (395), 258 states have internal predecessors, (395), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-18 14:34:46,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 439 transitions. [2024-11-18 14:34:46,874 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 439 transitions. Word has length 133 [2024-11-18 14:34:46,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:34:46,877 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 439 transitions. [2024-11-18 14:34:46,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 14:34:46,878 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 439 transitions. [2024-11-18 14:34:46,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 14:34:46,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:34:46,882 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:34:46,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:34:46,883 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:34:46,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:34:46,883 INFO L85 PathProgramCache]: Analyzing trace with hash 240450832, now seen corresponding path program 1 times [2024-11-18 14:34:46,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:34:46,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811516879] [2024-11-18 14:34:46,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:46,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:34:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:47,145 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 14:34:47,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:34:47,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811516879] [2024-11-18 14:34:47,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811516879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:34:47,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:34:47,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:34:47,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451655764] [2024-11-18 14:34:47,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:34:47,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:34:47,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:34:47,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:34:47,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:34:47,154 INFO L87 Difference]: Start difference. First operand 286 states and 439 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 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 14:34:47,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:34:47,674 INFO L93 Difference]: Finished difference Result 858 states and 1331 transitions. [2024-11-18 14:34:47,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:34:47,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 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 133 [2024-11-18 14:34:47,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:34:47,680 INFO L225 Difference]: With dead ends: 858 [2024-11-18 14:34:47,680 INFO L226 Difference]: Without dead ends: 588 [2024-11-18 14:34:47,682 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 14:34:47,683 INFO L432 NwaCegarLoop]: 377 mSDtfsCounter, 820 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:34:47,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 1316 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:34:47,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-18 14:34:47,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 567. [2024-11-18 14:34:47,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 514 states have (on average 1.54863813229572) internal successors, (796), 516 states have internal predecessors, (796), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2024-11-18 14:34:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 875 transitions. [2024-11-18 14:34:47,729 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 875 transitions. Word has length 133 [2024-11-18 14:34:47,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:34:47,732 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 875 transitions. [2024-11-18 14:34:47,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 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 14:34:47,732 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 875 transitions. [2024-11-18 14:34:47,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 14:34:47,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:34:47,735 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:34:47,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:34:47,736 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:34:47,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:34:47,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1466052716, now seen corresponding path program 1 times [2024-11-18 14:34:47,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:34:47,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999389229] [2024-11-18 14:34:47,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:47,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:34:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:47,951 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 14:34:47,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:34:47,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999389229] [2024-11-18 14:34:47,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999389229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:34:47,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:34:47,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:34:47,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005033915] [2024-11-18 14:34:47,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:34:47,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:34:47,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:34:47,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:34:47,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:34:47,955 INFO L87 Difference]: Start difference. First operand 567 states and 875 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:34:48,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:34:48,517 INFO L93 Difference]: Finished difference Result 1473 states and 2300 transitions. [2024-11-18 14:34:48,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:34:48,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 133 [2024-11-18 14:34:48,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:34:48,527 INFO L225 Difference]: With dead ends: 1473 [2024-11-18 14:34:48,528 INFO L226 Difference]: Without dead ends: 922 [2024-11-18 14:34:48,529 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 14:34:48,536 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 822 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 2333 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:34:48,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 2333 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:34:48,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2024-11-18 14:34:48,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 829. [2024-11-18 14:34:48,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 752 states have (on average 1.5412234042553192) internal successors, (1159), 755 states have internal predecessors, (1159), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (60), 57 states have call predecessors, (60), 56 states have call successors, (60) [2024-11-18 14:34:48,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1275 transitions. [2024-11-18 14:34:48,617 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1275 transitions. Word has length 133 [2024-11-18 14:34:48,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:34:48,617 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1275 transitions. [2024-11-18 14:34:48,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:34:48,617 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1275 transitions. [2024-11-18 14:34:48,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 14:34:48,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:34:48,623 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:34:48,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:34:48,626 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:34:48,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:34:48,626 INFO L85 PathProgramCache]: Analyzing trace with hash 535833554, now seen corresponding path program 1 times [2024-11-18 14:34:48,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:34:48,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278299177] [2024-11-18 14:34:48,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:48,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:34:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:48,957 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 14:34:48,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:34:48,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278299177] [2024-11-18 14:34:48,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278299177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:34:48,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:34:48,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:34:48,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77553362] [2024-11-18 14:34:48,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:34:48,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:34:48,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:34:48,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:34:48,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:34:48,970 INFO L87 Difference]: Start difference. First operand 829 states and 1275 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:34:49,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:34:49,539 INFO L93 Difference]: Finished difference Result 2305 states and 3591 transitions. [2024-11-18 14:34:49,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:34:49,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 133 [2024-11-18 14:34:49,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:34:49,546 INFO L225 Difference]: With dead ends: 2305 [2024-11-18 14:34:49,546 INFO L226 Difference]: Without dead ends: 1492 [2024-11-18 14:34:49,549 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 14:34:49,549 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 841 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:34:49,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 1626 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:34:49,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2024-11-18 14:34:49,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1386. [2024-11-18 14:34:49,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1259 states have (on average 1.5440826052422558) internal successors, (1944), 1266 states have internal predecessors, (1944), 90 states have call successors, (90), 30 states have call predecessors, (90), 36 states have return successors, (106), 93 states have call predecessors, (106), 90 states have call successors, (106) [2024-11-18 14:34:49,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 2140 transitions. [2024-11-18 14:34:49,602 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 2140 transitions. Word has length 133 [2024-11-18 14:34:49,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:34:49,602 INFO L471 AbstractCegarLoop]: Abstraction has 1386 states and 2140 transitions. [2024-11-18 14:34:49,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:34:49,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 2140 transitions. [2024-11-18 14:34:49,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 14:34:49,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:34:49,607 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:34:49,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:34:49,608 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:34:49,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:34:49,608 INFO L85 PathProgramCache]: Analyzing trace with hash -2031988780, now seen corresponding path program 1 times [2024-11-18 14:34:49,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:34:49,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827376512] [2024-11-18 14:34:49,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:49,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:34:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:49,778 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 14:34:49,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:34:49,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827376512] [2024-11-18 14:34:49,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827376512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:34:49,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:34:49,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:34:49,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423707973] [2024-11-18 14:34:49,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:34:49,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:34:49,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:34:49,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:34:49,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:34:49,781 INFO L87 Difference]: Start difference. First operand 1386 states and 2140 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:34:50,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:34:50,329 INFO L93 Difference]: Finished difference Result 4096 states and 6430 transitions. [2024-11-18 14:34:50,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:34:50,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 133 [2024-11-18 14:34:50,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:34:50,339 INFO L225 Difference]: With dead ends: 4096 [2024-11-18 14:34:50,339 INFO L226 Difference]: Without dead ends: 2726 [2024-11-18 14:34:50,342 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 14:34:50,343 INFO L432 NwaCegarLoop]: 569 mSDtfsCounter, 812 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:34:50,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 2305 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 14:34:50,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2024-11-18 14:34:50,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 2593. [2024-11-18 14:34:50,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2593 states, 2360 states have (on average 1.5593220338983051) internal successors, (3680), 2381 states have internal predecessors, (3680), 158 states have call successors, (158), 54 states have call predecessors, (158), 74 states have return successors, (222), 165 states have call predecessors, (222), 158 states have call successors, (222) [2024-11-18 14:34:50,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 4060 transitions. [2024-11-18 14:34:50,421 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 4060 transitions. Word has length 133 [2024-11-18 14:34:50,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:34:50,422 INFO L471 AbstractCegarLoop]: Abstraction has 2593 states and 4060 transitions. [2024-11-18 14:34:50,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:34:50,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 4060 transitions. [2024-11-18 14:34:50,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 14:34:50,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:34:50,424 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:34:50,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:34:50,424 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:34:50,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:34:50,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1560632430, now seen corresponding path program 1 times [2024-11-18 14:34:50,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:34:50,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461760048] [2024-11-18 14:34:50,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:50,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:34:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:50,569 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 14:34:50,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:34:50,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461760048] [2024-11-18 14:34:50,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461760048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:34:50,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:34:50,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:34:50,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419611511] [2024-11-18 14:34:50,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:34:50,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:34:50,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:34:50,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:34:50,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:34:50,571 INFO L87 Difference]: Start difference. First operand 2593 states and 4060 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:34:51,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:34:51,261 INFO L93 Difference]: Finished difference Result 8031 states and 12856 transitions. [2024-11-18 14:34:51,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:34:51,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 133 [2024-11-18 14:34:51,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:34:51,284 INFO L225 Difference]: With dead ends: 8031 [2024-11-18 14:34:51,285 INFO L226 Difference]: Without dead ends: 5454 [2024-11-18 14:34:51,290 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 14:34:51,292 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 807 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:34:51,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 2293 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:34:51,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5454 states. [2024-11-18 14:34:51,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5454 to 5268. [2024-11-18 14:34:51,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 4805 states have (on average 1.5850156087408949) internal successors, (7616), 4872 states have internal predecessors, (7616), 294 states have call successors, (294), 102 states have call predecessors, (294), 168 states have return successors, (550), 309 states have call predecessors, (550), 294 states have call successors, (550) [2024-11-18 14:34:51,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 8460 transitions. [2024-11-18 14:34:51,533 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 8460 transitions. Word has length 133 [2024-11-18 14:34:51,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:34:51,533 INFO L471 AbstractCegarLoop]: Abstraction has 5268 states and 8460 transitions. [2024-11-18 14:34:51,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:34:51,534 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 8460 transitions. [2024-11-18 14:34:51,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 14:34:51,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:34:51,536 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:34:51,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:34:51,537 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:34:51,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:34:51,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1086971924, now seen corresponding path program 1 times [2024-11-18 14:34:51,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:34:51,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409641346] [2024-11-18 14:34:51,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:51,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:34:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:51,630 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 14:34:51,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:34:51,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409641346] [2024-11-18 14:34:51,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409641346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:34:51,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:34:51,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:34:51,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101285317] [2024-11-18 14:34:51,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:34:51,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:34:51,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:34:51,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:34:51,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:34:51,632 INFO L87 Difference]: Start difference. First operand 5268 states and 8460 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:34:52,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:34:52,533 INFO L93 Difference]: Finished difference Result 16886 states and 27930 transitions. [2024-11-18 14:34:52,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:34:52,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 133 [2024-11-18 14:34:52,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:34:52,606 INFO L225 Difference]: With dead ends: 16886 [2024-11-18 14:34:52,606 INFO L226 Difference]: Without dead ends: 11634 [2024-11-18 14:34:52,628 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 14:34:52,631 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 802 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:34:52,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 2281 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:34:52,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11634 states. [2024-11-18 14:34:53,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11634 to 11347. [2024-11-18 14:34:53,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11347 states, 10370 states have (on average 1.6177434908389585) internal successors, (16776), 10583 states have internal predecessors, (16776), 566 states have call successors, (566), 198 states have call predecessors, (566), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2024-11-18 14:34:53,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11347 states to 11347 states and 18932 transitions. [2024-11-18 14:34:53,236 INFO L78 Accepts]: Start accepts. Automaton has 11347 states and 18932 transitions. Word has length 133 [2024-11-18 14:34:53,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:34:53,237 INFO L471 AbstractCegarLoop]: Abstraction has 11347 states and 18932 transitions. [2024-11-18 14:34:53,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:34:53,237 INFO L276 IsEmpty]: Start isEmpty. Operand 11347 states and 18932 transitions. [2024-11-18 14:34:53,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 14:34:53,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:34:53,243 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:34:53,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:34:53,244 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:34:53,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:34:53,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1044378798, now seen corresponding path program 1 times [2024-11-18 14:34:53,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:34:53,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726536484] [2024-11-18 14:34:53,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:53,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:34:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:53,361 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 14:34:53,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:34:53,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726536484] [2024-11-18 14:34:53,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726536484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:34:53,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:34:53,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:34:53,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703517172] [2024-11-18 14:34:53,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:34:53,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:34:53,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:34:53,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:34:53,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:34:53,363 INFO L87 Difference]: Start difference. First operand 11347 states and 18932 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:34:54,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:34:54,779 INFO L93 Difference]: Finished difference Result 37337 states and 64808 transitions. [2024-11-18 14:34:54,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:34:54,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 133 [2024-11-18 14:34:54,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:34:54,903 INFO L225 Difference]: With dead ends: 37337 [2024-11-18 14:34:54,904 INFO L226 Difference]: Without dead ends: 26006 [2024-11-18 14:34:54,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:34:54,941 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 797 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 14:34:54,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 2269 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 14:34:54,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26006 states. [2024-11-18 14:34:55,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26006 to 25530. [2024-11-18 14:34:55,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25530 states, 23363 states have (on average 1.6540683987501605) internal successors, (38644), 24030 states have internal predecessors, (38644), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 1056 states have return successors, (5206), 1173 states have call predecessors, (5206), 1110 states have call successors, (5206) [2024-11-18 14:34:56,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25530 states to 25530 states and 44960 transitions. [2024-11-18 14:34:56,090 INFO L78 Accepts]: Start accepts. Automaton has 25530 states and 44960 transitions. Word has length 133 [2024-11-18 14:34:56,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:34:56,091 INFO L471 AbstractCegarLoop]: Abstraction has 25530 states and 44960 transitions. [2024-11-18 14:34:56,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:34:56,092 INFO L276 IsEmpty]: Start isEmpty. Operand 25530 states and 44960 transitions. [2024-11-18 14:34:56,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 14:34:56,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:34:56,107 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:34:56,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:34:56,108 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:34:56,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:34:56,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2082963372, now seen corresponding path program 1 times [2024-11-18 14:34:56,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:34:56,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887629120] [2024-11-18 14:34:56,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:34:56,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:34:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:34:56,232 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 14:34:56,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:34:56,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887629120] [2024-11-18 14:34:56,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887629120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:34:56,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:34:56,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:34:56,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047317890] [2024-11-18 14:34:56,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:34:56,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:34:56,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:34:56,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:34:56,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:34:56,234 INFO L87 Difference]: Start difference. First operand 25530 states and 44960 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:34:58,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:34:58,509 INFO L93 Difference]: Finished difference Result 85028 states and 157830 transitions. [2024-11-18 14:34:58,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:34:58,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 133 [2024-11-18 14:34:58,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:34:58,818 INFO L225 Difference]: With dead ends: 85028 [2024-11-18 14:34:58,819 INFO L226 Difference]: Without dead ends: 59514 [2024-11-18 14:34:58,894 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 14:34:58,896 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 789 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:34:58,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 2243 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 14:34:58,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59514 states. [2024-11-18 14:35:01,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59514 to 58756. [2024-11-18 14:35:01,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58756 states, 53723 states have (on average 1.6866146715559445) internal successors, (90610), 55784 states have internal predecessors, (90610), 2198 states have call successors, (2198), 774 states have call predecessors, (2198), 2834 states have return successors, (18582), 2325 states have call predecessors, (18582), 2198 states have call successors, (18582) [2024-11-18 14:35:01,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58756 states to 58756 states and 111390 transitions. [2024-11-18 14:35:01,958 INFO L78 Accepts]: Start accepts. Automaton has 58756 states and 111390 transitions. Word has length 133 [2024-11-18 14:35:01,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:35:01,959 INFO L471 AbstractCegarLoop]: Abstraction has 58756 states and 111390 transitions. [2024-11-18 14:35:01,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:35:01,959 INFO L276 IsEmpty]: Start isEmpty. Operand 58756 states and 111390 transitions. [2024-11-18 14:35:01,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 14:35:01,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:01,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:35:01,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:35:01,977 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:01,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:01,977 INFO L85 PathProgramCache]: Analyzing trace with hash 70143446, now seen corresponding path program 1 times [2024-11-18 14:35:01,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:01,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604831533] [2024-11-18 14:35:01,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:01,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:02,069 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 14:35:02,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:02,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604831533] [2024-11-18 14:35:02,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604831533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:02,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:02,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:35:02,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10981696] [2024-11-18 14:35:02,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:02,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:35:02,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:02,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:35:02,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:35:02,071 INFO L87 Difference]: Start difference. First operand 58756 states and 111390 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:35:07,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:35:07,607 INFO L93 Difference]: Finished difference Result 206938 states and 418011 transitions. [2024-11-18 14:35:07,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:35:07,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 133 [2024-11-18 14:35:07,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:35:08,490 INFO L225 Difference]: With dead ends: 206938 [2024-11-18 14:35:08,491 INFO L226 Difference]: Without dead ends: 148198 [2024-11-18 14:35:08,643 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 14:35:08,644 INFO L432 NwaCegarLoop]: 548 mSDtfsCounter, 1038 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:35:08,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 2218 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 14:35:08,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148198 states. [2024-11-18 14:35:16,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148198 to 138675. [2024-11-18 14:35:16,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138675 states, 126580 states have (on average 1.718675936166851) internal successors, (217550), 132887 states have internal predecessors, (217550), 4246 states have call successors, (4246), 1542 states have call predecessors, (4246), 7848 states have return successors, (69782), 4501 states have call predecessors, (69782), 4246 states have call successors, (69782) [2024-11-18 14:35:18,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138675 states to 138675 states and 291578 transitions. [2024-11-18 14:35:18,193 INFO L78 Accepts]: Start accepts. Automaton has 138675 states and 291578 transitions. Word has length 133 [2024-11-18 14:35:18,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:35:18,194 INFO L471 AbstractCegarLoop]: Abstraction has 138675 states and 291578 transitions. [2024-11-18 14:35:18,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 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 14:35:18,194 INFO L276 IsEmpty]: Start isEmpty. Operand 138675 states and 291578 transitions. [2024-11-18 14:35:18,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 14:35:18,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:18,226 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:35:18,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:35:18,227 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:18,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:18,227 INFO L85 PathProgramCache]: Analyzing trace with hash -553138156, now seen corresponding path program 1 times [2024-11-18 14:35:18,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:18,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374550577] [2024-11-18 14:35:18,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:18,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:18,302 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 14:35:18,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:18,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374550577] [2024-11-18 14:35:18,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374550577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:18,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:18,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:35:18,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094056946] [2024-11-18 14:35:18,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:18,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:35:18,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:18,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:35:18,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:35:18,304 INFO L87 Difference]: Start difference. First operand 138675 states and 291578 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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 14:35:26,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:35:26,153 INFO L93 Difference]: Finished difference Result 336401 states and 747627 transitions. [2024-11-18 14:35:26,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:35:26,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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 133 [2024-11-18 14:35:26,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:35:28,050 INFO L225 Difference]: With dead ends: 336401 [2024-11-18 14:35:28,050 INFO L226 Difference]: Without dead ends: 197742 [2024-11-18 14:35:28,399 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 14:35:28,400 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 590 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:35:28,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 788 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:35:28,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197742 states.