./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label53.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/eca-rers2012/Problem17_label53.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 1a38205e3959e6525b83c93048d4c167030358e78fc3e837355c804b08f2636e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:55:00,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:55:00,347 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:55:00,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:55:00,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:55:00,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:55:00,371 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:55:00,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:55:00,372 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:55:00,372 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:55:00,373 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:55:00,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:55:00,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:55:00,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:55:00,375 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:55:00,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:55:00,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:55:00,376 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:55:00,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:55:00,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:55:00,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:55:00,379 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:55:00,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:55:00,380 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:55:00,380 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:55:00,380 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:55:00,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:55:00,381 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:55:00,381 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:55:00,381 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:55:00,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:55:00,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:55:00,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:55:00,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:55:00,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:55:00,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:55:00,382 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:55:00,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:55:00,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:55:00,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:55:00,383 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:55:00,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:55:00,385 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a38205e3959e6525b83c93048d4c167030358e78fc3e837355c804b08f2636e [2024-11-09 19:55:00,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:55:00,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:55:00,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:55:00,611 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:55:00,611 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:55:00,613 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label53.c [2024-11-09 19:55:01,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:55:02,190 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:55:02,192 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label53.c [2024-11-09 19:55:02,218 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a19aa8ab/17be58e6ef384f6b8b48c2b49796965d/FLAG0d8056444 [2024-11-09 19:55:02,233 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a19aa8ab/17be58e6ef384f6b8b48c2b49796965d [2024-11-09 19:55:02,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:55:02,236 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:55:02,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:55:02,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:55:02,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:55:02,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:55:02" (1/1) ... [2024-11-09 19:55:02,246 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a4cf409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:02, skipping insertion in model container [2024-11-09 19:55:02,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:55:02" (1/1) ... [2024-11-09 19:55:02,329 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:55:02,509 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/eca-rers2012/Problem17_label53.c[2227,2240] [2024-11-09 19:55:02,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:55:02,987 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:55:03,001 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/eca-rers2012/Problem17_label53.c[2227,2240] [2024-11-09 19:55:03,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:55:03,213 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:55:03,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03 WrapperNode [2024-11-09 19:55:03,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:55:03,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:55:03,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:55:03,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:55:03,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03" (1/1) ... [2024-11-09 19:55:03,264 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03" (1/1) ... [2024-11-09 19:55:03,497 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2612 [2024-11-09 19:55:03,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:55:03,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:55:03,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:55:03,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:55:03,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03" (1/1) ... [2024-11-09 19:55:03,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03" (1/1) ... [2024-11-09 19:55:03,579 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03" (1/1) ... [2024-11-09 19:55:03,725 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]. [2024-11-09 19:55:03,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03" (1/1) ... [2024-11-09 19:55:03,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03" (1/1) ... [2024-11-09 19:55:03,852 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03" (1/1) ... [2024-11-09 19:55:03,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03" (1/1) ... [2024-11-09 19:55:03,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03" (1/1) ... [2024-11-09 19:55:03,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03" (1/1) ... [2024-11-09 19:55:03,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:55:03,914 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:55:03,914 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:55:03,914 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:55:03,915 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03" (1/1) ... [2024-11-09 19:55:03,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:55:03,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:55:03,946 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) [2024-11-09 19:55:03,950 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 [2024-11-09 19:55:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:55:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:55:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:55:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:55:04,048 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:55:04,050 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:55:06,951 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1653: havoc calculate_output_#t~ret7#1; [2024-11-09 19:55:07,110 INFO L? ?]: Removed 949 outVars from TransFormulas that were not future-live. [2024-11-09 19:55:07,110 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:55:07,141 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:55:07,141 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:55:07,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:55:07 BoogieIcfgContainer [2024-11-09 19:55:07,141 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:55:07,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:55:07,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:55:07,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:55:07,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:55:02" (1/3) ... [2024-11-09 19:55:07,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34af14b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:55:07, skipping insertion in model container [2024-11-09 19:55:07,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:55:03" (2/3) ... [2024-11-09 19:55:07,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34af14b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:55:07, skipping insertion in model container [2024-11-09 19:55:07,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:55:07" (3/3) ... [2024-11-09 19:55:07,149 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label53.c [2024-11-09 19:55:07,163 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:55:07,164 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:55:07,238 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:55:07,244 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;@3c87d44a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:55:07,245 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:55:07,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 593 states, 591 states have (on average 2.4077834179357023) internal successors, (1423), 592 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:07,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 19:55:07,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:07,260 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:07,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:07,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:07,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1985304940, now seen corresponding path program 1 times [2024-11-09 19:55:07,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:07,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258405783] [2024-11-09 19:55:07,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:07,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:55:07,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:07,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258405783] [2024-11-09 19:55:07,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258405783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:07,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:07,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:55:07,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449776079] [2024-11-09 19:55:07,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:07,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:07,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:07,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:07,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:07,525 INFO L87 Difference]: Start difference. First operand has 593 states, 591 states have (on average 2.4077834179357023) internal successors, (1423), 592 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:10,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:10,395 INFO L93 Difference]: Finished difference Result 1673 states and 4141 transitions. [2024-11-09 19:55:10,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:10,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-09 19:55:10,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:10,416 INFO L225 Difference]: With dead ends: 1673 [2024-11-09 19:55:10,416 INFO L226 Difference]: Without dead ends: 1001 [2024-11-09 19:55:10,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:10,425 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 889 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 2282 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 2678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 2282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:10,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 279 Invalid, 2678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 2282 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 19:55:10,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-11-09 19:55:10,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 985. [2024-11-09 19:55:10,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 984 states have (on average 2.432926829268293) internal successors, (2394), 984 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:10,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 2394 transitions. [2024-11-09 19:55:10,495 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 2394 transitions. Word has length 16 [2024-11-09 19:55:10,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:10,495 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 2394 transitions. [2024-11-09 19:55:10,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:10,496 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 2394 transitions. [2024-11-09 19:55:10,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 19:55:10,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:10,499 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:10,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:55:10,500 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:10,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:10,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1255597067, now seen corresponding path program 1 times [2024-11-09 19:55:10,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:10,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109121082] [2024-11-09 19:55:10,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:10,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:10,704 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:55:10,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:10,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109121082] [2024-11-09 19:55:10,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109121082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:10,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:10,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:55:10,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191272649] [2024-11-09 19:55:10,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:10,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:10,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:10,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:10,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:10,708 INFO L87 Difference]: Start difference. First operand 985 states and 2394 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:13,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:13,312 INFO L93 Difference]: Finished difference Result 2848 states and 7038 transitions. [2024-11-09 19:55:13,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:13,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-09 19:55:13,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:13,319 INFO L225 Difference]: With dead ends: 2848 [2024-11-09 19:55:13,319 INFO L226 Difference]: Without dead ends: 1865 [2024-11-09 19:55:13,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:13,323 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 763 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 2147 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 2432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 2147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:13,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 506 Invalid, 2432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 2147 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 19:55:13,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2024-11-09 19:55:13,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1859. [2024-11-09 19:55:13,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1858 states have (on average 2.2583423035522068) internal successors, (4196), 1858 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:13,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 4196 transitions. [2024-11-09 19:55:13,364 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 4196 transitions. Word has length 82 [2024-11-09 19:55:13,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:13,365 INFO L471 AbstractCegarLoop]: Abstraction has 1859 states and 4196 transitions. [2024-11-09 19:55:13,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:13,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 4196 transitions. [2024-11-09 19:55:13,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 19:55:13,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:13,369 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:13,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:55:13,370 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:13,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:13,370 INFO L85 PathProgramCache]: Analyzing trace with hash -874987273, now seen corresponding path program 1 times [2024-11-09 19:55:13,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:13,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254186328] [2024-11-09 19:55:13,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:13,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:13,585 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:55:13,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:13,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254186328] [2024-11-09 19:55:13,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254186328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:13,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:13,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:55:13,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930802116] [2024-11-09 19:55:13,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:13,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:13,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:13,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:13,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:13,587 INFO L87 Difference]: Start difference. First operand 1859 states and 4196 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:15,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:15,406 INFO L93 Difference]: Finished difference Result 4150 states and 9270 transitions. [2024-11-09 19:55:15,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:15,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-09 19:55:15,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:15,418 INFO L225 Difference]: With dead ends: 4150 [2024-11-09 19:55:15,419 INFO L226 Difference]: Without dead ends: 2293 [2024-11-09 19:55:15,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:15,425 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 719 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 2086 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:15,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 502 Invalid, 2109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2086 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:55:15,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2293 states. [2024-11-09 19:55:15,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2293 to 2289. [2024-11-09 19:55:15,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 2288 states have (on average 2.208041958041958) internal successors, (5052), 2288 states have internal predecessors, (5052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:15,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 5052 transitions. [2024-11-09 19:55:15,462 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 5052 transitions. Word has length 92 [2024-11-09 19:55:15,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:15,463 INFO L471 AbstractCegarLoop]: Abstraction has 2289 states and 5052 transitions. [2024-11-09 19:55:15,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:15,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 5052 transitions. [2024-11-09 19:55:15,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 19:55:15,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:15,467 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:15,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:55:15,467 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:15,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:15,468 INFO L85 PathProgramCache]: Analyzing trace with hash 208749549, now seen corresponding path program 1 times [2024-11-09 19:55:15,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:15,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733671981] [2024-11-09 19:55:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:15,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:15,599 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:55:15,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:15,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733671981] [2024-11-09 19:55:15,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733671981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:15,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:15,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:55:15,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466358441] [2024-11-09 19:55:15,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:15,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:15,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:15,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:15,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:15,601 INFO L87 Difference]: Start difference. First operand 2289 states and 5052 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:17,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:17,655 INFO L93 Difference]: Finished difference Result 6738 states and 14977 transitions. [2024-11-09 19:55:17,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:17,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-09 19:55:17,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:17,669 INFO L225 Difference]: With dead ends: 6738 [2024-11-09 19:55:17,669 INFO L226 Difference]: Without dead ends: 4451 [2024-11-09 19:55:17,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:17,674 INFO L432 NwaCegarLoop]: 523 mSDtfsCounter, 747 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 2110 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 2434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 2110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:17,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 598 Invalid, 2434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 2110 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 19:55:17,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4451 states. [2024-11-09 19:55:17,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4451 to 4444. [2024-11-09 19:55:17,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4444 states, 4443 states have (on average 2.072473553905019) internal successors, (9208), 4443 states have internal predecessors, (9208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:17,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4444 states to 4444 states and 9208 transitions. [2024-11-09 19:55:17,744 INFO L78 Accepts]: Start accepts. Automaton has 4444 states and 9208 transitions. Word has length 103 [2024-11-09 19:55:17,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:17,745 INFO L471 AbstractCegarLoop]: Abstraction has 4444 states and 9208 transitions. [2024-11-09 19:55:17,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:17,745 INFO L276 IsEmpty]: Start isEmpty. Operand 4444 states and 9208 transitions. [2024-11-09 19:55:17,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-09 19:55:17,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:17,747 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:17,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:55:17,747 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:17,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:17,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1311439465, now seen corresponding path program 1 times [2024-11-09 19:55:17,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:17,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84801126] [2024-11-09 19:55:17,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:17,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:18,088 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 25 proven. 63 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 19:55:18,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:18,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84801126] [2024-11-09 19:55:18,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84801126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:55:18,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207878963] [2024-11-09 19:55:18,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:18,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:55:18,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:55:18,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:55:18,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:55:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:18,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:55:18,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:55:18,235 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-09 19:55:18,236 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:55:18,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207878963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:18,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:55:18,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:55:18,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908093876] [2024-11-09 19:55:18,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:18,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:18,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:18,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:18,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:55:18,240 INFO L87 Difference]: Start difference. First operand 4444 states and 9208 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:20,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:20,328 INFO L93 Difference]: Finished difference Result 10612 states and 22359 transitions. [2024-11-09 19:55:20,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:20,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2024-11-09 19:55:20,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:20,347 INFO L225 Difference]: With dead ends: 10612 [2024-11-09 19:55:20,347 INFO L226 Difference]: Without dead ends: 6170 [2024-11-09 19:55:20,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:55:20,353 INFO L432 NwaCegarLoop]: 1168 mSDtfsCounter, 850 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:20,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1238 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 19:55:20,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6170 states. [2024-11-09 19:55:20,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6170 to 6168. [2024-11-09 19:55:20,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6168 states, 6167 states have (on average 2.0538349278417383) internal successors, (12666), 6167 states have internal predecessors, (12666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:20,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6168 states to 6168 states and 12666 transitions. [2024-11-09 19:55:20,475 INFO L78 Accepts]: Start accepts. Automaton has 6168 states and 12666 transitions. Word has length 153 [2024-11-09 19:55:20,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:20,476 INFO L471 AbstractCegarLoop]: Abstraction has 6168 states and 12666 transitions. [2024-11-09 19:55:20,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 6168 states and 12666 transitions. [2024-11-09 19:55:20,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-09 19:55:20,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:20,479 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:20,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:55:20,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:55:20,681 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:20,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:20,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1836879049, now seen corresponding path program 1 times [2024-11-09 19:55:20,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:20,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007183190] [2024-11-09 19:55:20,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:20,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:20,845 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 19:55:20,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:20,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007183190] [2024-11-09 19:55:20,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007183190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:20,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:20,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:55:20,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089511751] [2024-11-09 19:55:20,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:20,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:20,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:20,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:20,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:20,851 INFO L87 Difference]: Start difference. First operand 6168 states and 12666 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:22,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:22,776 INFO L93 Difference]: Finished difference Result 17455 states and 36099 transitions. [2024-11-09 19:55:22,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:22,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2024-11-09 19:55:22,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:22,799 INFO L225 Difference]: With dead ends: 17455 [2024-11-09 19:55:22,799 INFO L226 Difference]: Without dead ends: 10007 [2024-11-09 19:55:22,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:22,808 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 745 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:22,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 591 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1797 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:55:22,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10007 states. [2024-11-09 19:55:22,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10007 to 7440. [2024-11-09 19:55:22,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7440 states, 7439 states have (on average 1.9705605592149482) internal successors, (14659), 7439 states have internal predecessors, (14659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:22,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7440 states to 7440 states and 14659 transitions. [2024-11-09 19:55:22,989 INFO L78 Accepts]: Start accepts. Automaton has 7440 states and 14659 transitions. Word has length 159 [2024-11-09 19:55:22,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:22,989 INFO L471 AbstractCegarLoop]: Abstraction has 7440 states and 14659 transitions. [2024-11-09 19:55:22,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:22,990 INFO L276 IsEmpty]: Start isEmpty. Operand 7440 states and 14659 transitions. [2024-11-09 19:55:22,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-09 19:55:22,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:22,991 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:22,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:55:22,991 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:22,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:22,992 INFO L85 PathProgramCache]: Analyzing trace with hash -238807020, now seen corresponding path program 1 times [2024-11-09 19:55:22,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:22,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215783222] [2024-11-09 19:55:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:22,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:23,195 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 25 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:55:23,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:23,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215783222] [2024-11-09 19:55:23,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215783222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:55:23,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465519965] [2024-11-09 19:55:23,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:23,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:55:23,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:55:23,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:55:23,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:55:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:23,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 19:55:23,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:55:23,485 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 25 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:55:23,485 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:55:23,725 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:55:23,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465519965] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 19:55:23,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 19:55:23,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2024-11-09 19:55:23,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735945930] [2024-11-09 19:55:23,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:23,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:55:23,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:23,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:55:23,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:55:23,728 INFO L87 Difference]: Start difference. First operand 7440 states and 14659 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:27,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:27,035 INFO L93 Difference]: Finished difference Result 23025 states and 45947 transitions. [2024-11-09 19:55:27,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:55:27,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2024-11-09 19:55:27,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:27,059 INFO L225 Difference]: With dead ends: 23025 [2024-11-09 19:55:27,060 INFO L226 Difference]: Without dead ends: 14280 [2024-11-09 19:55:27,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:55:27,068 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 1729 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 3623 mSolverCounterSat, 947 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 4570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 947 IncrementalHoareTripleChecker+Valid, 3623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:27,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 160 Invalid, 4570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [947 Valid, 3623 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 19:55:27,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14280 states. [2024-11-09 19:55:27,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14280 to 14274. [2024-11-09 19:55:27,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14274 states, 14273 states have (on average 1.9798921039725355) internal successors, (28259), 14273 states have internal predecessors, (28259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:27,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14274 states to 14274 states and 28259 transitions. [2024-11-09 19:55:27,255 INFO L78 Accepts]: Start accepts. Automaton has 14274 states and 28259 transitions. Word has length 172 [2024-11-09 19:55:27,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:27,256 INFO L471 AbstractCegarLoop]: Abstraction has 14274 states and 28259 transitions. [2024-11-09 19:55:27,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:27,256 INFO L276 IsEmpty]: Start isEmpty. Operand 14274 states and 28259 transitions. [2024-11-09 19:55:27,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-09 19:55:27,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:27,257 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:27,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:55:27,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 19:55:27,462 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:27,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:27,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1958153416, now seen corresponding path program 1 times [2024-11-09 19:55:27,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:27,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488440792] [2024-11-09 19:55:27,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:27,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:27,594 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:55:27,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:27,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488440792] [2024-11-09 19:55:27,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488440792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:27,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:27,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:27,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240300783] [2024-11-09 19:55:27,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:27,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:27,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:27,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:27,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:27,597 INFO L87 Difference]: Start difference. First operand 14274 states and 28259 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:29,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:29,394 INFO L93 Difference]: Finished difference Result 35364 states and 70649 transitions. [2024-11-09 19:55:29,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:29,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2024-11-09 19:55:29,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:29,426 INFO L225 Difference]: With dead ends: 35364 [2024-11-09 19:55:29,427 INFO L226 Difference]: Without dead ends: 21092 [2024-11-09 19:55:29,440 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 [2024-11-09 19:55:29,441 INFO L432 NwaCegarLoop]: 1031 mSDtfsCounter, 848 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1766 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 1766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:29,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 1084 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 1766 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:55:29,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21092 states. [2024-11-09 19:55:29,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21092 to 20666. [2024-11-09 19:55:29,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20666 states, 20665 states have (on average 1.965545608516816) internal successors, (40618), 20665 states have internal predecessors, (40618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:29,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20666 states to 20666 states and 40618 transitions. [2024-11-09 19:55:29,687 INFO L78 Accepts]: Start accepts. Automaton has 20666 states and 40618 transitions. Word has length 176 [2024-11-09 19:55:29,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:29,688 INFO L471 AbstractCegarLoop]: Abstraction has 20666 states and 40618 transitions. [2024-11-09 19:55:29,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:29,688 INFO L276 IsEmpty]: Start isEmpty. Operand 20666 states and 40618 transitions. [2024-11-09 19:55:29,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-09 19:55:29,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:29,690 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:29,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:55:29,690 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:29,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:29,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1859317370, now seen corresponding path program 1 times [2024-11-09 19:55:29,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:29,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898833983] [2024-11-09 19:55:29,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:29,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:30,110 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 38 proven. 217 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:55:30,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:30,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898833983] [2024-11-09 19:55:30,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898833983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:55:30,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103842362] [2024-11-09 19:55:30,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:30,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:55:30,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:55:30,113 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:55:30,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 19:55:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:30,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 19:55:30,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:55:30,368 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 168 proven. 74 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 19:55:30,368 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:55:30,567 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 19:55:30,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103842362] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 19:55:30,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 19:55:30,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 3] total 6 [2024-11-09 19:55:30,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443751420] [2024-11-09 19:55:30,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:30,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:55:30,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:30,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:55:30,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:55:30,571 INFO L87 Difference]: Start difference. First operand 20666 states and 40618 transitions. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:33,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:33,672 INFO L93 Difference]: Finished difference Result 55434 states and 109217 transitions. [2024-11-09 19:55:33,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:55:33,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2024-11-09 19:55:33,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:33,724 INFO L225 Difference]: With dead ends: 55434 [2024-11-09 19:55:33,725 INFO L226 Difference]: Without dead ends: 34770 [2024-11-09 19:55:33,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:55:33,742 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 1556 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 3700 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 4212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 3700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:33,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 197 Invalid, 4212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 3700 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 19:55:33,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34770 states. [2024-11-09 19:55:34,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34770 to 34763. [2024-11-09 19:55:34,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34763 states, 34762 states have (on average 1.960272711581612) internal successors, (68143), 34762 states have internal predecessors, (68143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:34,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34763 states to 34763 states and 68143 transitions. [2024-11-09 19:55:34,155 INFO L78 Accepts]: Start accepts. Automaton has 34763 states and 68143 transitions. Word has length 247 [2024-11-09 19:55:34,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:34,155 INFO L471 AbstractCegarLoop]: Abstraction has 34763 states and 68143 transitions. [2024-11-09 19:55:34,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:34,156 INFO L276 IsEmpty]: Start isEmpty. Operand 34763 states and 68143 transitions. [2024-11-09 19:55:34,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-09 19:55:34,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:34,160 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:34,176 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 19:55:34,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:55:34,361 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:34,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:34,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1937193520, now seen corresponding path program 1 times [2024-11-09 19:55:34,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:34,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360218951] [2024-11-09 19:55:34,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:34,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 402 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 19:55:34,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:34,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360218951] [2024-11-09 19:55:34,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360218951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:34,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:34,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:34,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374885499] [2024-11-09 19:55:34,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:34,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:34,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:34,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:34,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:34,666 INFO L87 Difference]: Start difference. First operand 34763 states and 68143 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:36,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:36,724 INFO L93 Difference]: Finished difference Result 81949 states and 160443 transitions. [2024-11-09 19:55:36,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:36,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 353 [2024-11-09 19:55:36,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:36,933 INFO L225 Difference]: With dead ends: 81949 [2024-11-09 19:55:36,933 INFO L226 Difference]: Without dead ends: 47188 [2024-11-09 19:55:36,948 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 [2024-11-09 19:55:36,949 INFO L432 NwaCegarLoop]: 1007 mSDtfsCounter, 787 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:36,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1051 Invalid, 2216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:55:36,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47188 states. [2024-11-09 19:55:37,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47188 to 45024. [2024-11-09 19:55:37,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45024 states, 45023 states have (on average 1.9581769317904183) internal successors, (88163), 45023 states have internal predecessors, (88163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45024 states to 45024 states and 88163 transitions. [2024-11-09 19:55:37,682 INFO L78 Accepts]: Start accepts. Automaton has 45024 states and 88163 transitions. Word has length 353 [2024-11-09 19:55:37,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:37,683 INFO L471 AbstractCegarLoop]: Abstraction has 45024 states and 88163 transitions. [2024-11-09 19:55:37,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:37,683 INFO L276 IsEmpty]: Start isEmpty. Operand 45024 states and 88163 transitions. [2024-11-09 19:55:37,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-09 19:55:37,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:37,702 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:37,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:55:37,702 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:37,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:37,703 INFO L85 PathProgramCache]: Analyzing trace with hash -2003187009, now seen corresponding path program 1 times [2024-11-09 19:55:37,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:37,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737158311] [2024-11-09 19:55:37,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:37,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:38,128 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 419 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-09 19:55:38,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:38,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737158311] [2024-11-09 19:55:38,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737158311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:38,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:38,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:38,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869237736] [2024-11-09 19:55:38,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:38,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:38,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:38,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:38,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:38,130 INFO L87 Difference]: Start difference. First operand 45024 states and 88163 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:40,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:40,165 INFO L93 Difference]: Finished difference Result 102855 states and 201821 transitions. [2024-11-09 19:55:40,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:55:40,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 354 [2024-11-09 19:55:40,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:40,251 INFO L225 Difference]: With dead ends: 102855 [2024-11-09 19:55:40,251 INFO L226 Difference]: Without dead ends: 56548 [2024-11-09 19:55:40,279 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 [2024-11-09 19:55:40,280 INFO L432 NwaCegarLoop]: 965 mSDtfsCounter, 795 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 2159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:40,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 1004 Invalid, 2159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:55:40,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56548 states. [2024-11-09 19:55:41,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56548 to 54410. [2024-11-09 19:55:41,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54410 states, 54409 states have (on average 1.9569924093440423) internal successors, (106478), 54409 states have internal predecessors, (106478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:41,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54410 states to 54410 states and 106478 transitions. [2024-11-09 19:55:41,173 INFO L78 Accepts]: Start accepts. Automaton has 54410 states and 106478 transitions. Word has length 354 [2024-11-09 19:55:41,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:41,173 INFO L471 AbstractCegarLoop]: Abstraction has 54410 states and 106478 transitions. [2024-11-09 19:55:41,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:41,173 INFO L276 IsEmpty]: Start isEmpty. Operand 54410 states and 106478 transitions. [2024-11-09 19:55:41,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-09 19:55:41,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:41,180 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:41,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:55:41,180 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:41,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:41,181 INFO L85 PathProgramCache]: Analyzing trace with hash -476172325, now seen corresponding path program 1 times [2024-11-09 19:55:41,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:41,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433494696] [2024-11-09 19:55:41,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:41,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:41,742 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 495 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 19:55:41,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:41,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433494696] [2024-11-09 19:55:41,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433494696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:41,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:41,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:55:41,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578453793] [2024-11-09 19:55:41,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:41,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:55:41,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:41,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:55:41,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:55:41,745 INFO L87 Difference]: Start difference. First operand 54410 states and 106478 transitions. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:44,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:44,852 INFO L93 Difference]: Finished difference Result 140048 states and 274025 transitions. [2024-11-09 19:55:44,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:55:44,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 358 [2024-11-09 19:55:44,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:44,955 INFO L225 Difference]: With dead ends: 140048 [2024-11-09 19:55:44,955 INFO L226 Difference]: Without dead ends: 85640 [2024-11-09 19:55:44,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:55:44,972 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 1542 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 3731 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 4167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 3731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:44,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1542 Valid, 201 Invalid, 4167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 3731 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 19:55:45,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85640 states. [2024-11-09 19:55:46,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85640 to 78807. [2024-11-09 19:55:46,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78807 states, 78806 states have (on average 1.9602314544577824) internal successors, (154478), 78806 states have internal predecessors, (154478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:46,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78807 states to 78807 states and 154478 transitions. [2024-11-09 19:55:46,360 INFO L78 Accepts]: Start accepts. Automaton has 78807 states and 154478 transitions. Word has length 358 [2024-11-09 19:55:46,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:46,360 INFO L471 AbstractCegarLoop]: Abstraction has 78807 states and 154478 transitions. [2024-11-09 19:55:46,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:46,360 INFO L276 IsEmpty]: Start isEmpty. Operand 78807 states and 154478 transitions. [2024-11-09 19:55:46,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-09 19:55:46,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:46,364 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:46,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:55:46,364 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:46,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:46,365 INFO L85 PathProgramCache]: Analyzing trace with hash -423044848, now seen corresponding path program 1 times [2024-11-09 19:55:46,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:46,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567972326] [2024-11-09 19:55:46,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:46,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:47,612 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 317 proven. 83 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-09 19:55:47,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:47,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567972326] [2024-11-09 19:55:47,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567972326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:55:47,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206459927] [2024-11-09 19:55:47,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:47,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:55:47,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:55:47,615 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:55:47,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 19:55:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:47,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 19:55:47,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:55:48,807 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 317 proven. 83 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-09 19:55:48,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:55:49,558 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 399 proven. 1 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-09 19:55:49,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206459927] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 19:55:49,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 19:55:49,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-09 19:55:49,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839748051] [2024-11-09 19:55:49,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 19:55:49,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 19:55:49,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:49,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 19:55:49,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:55:49,560 INFO L87 Difference]: Start difference. First operand 78807 states and 154478 transitions. Second operand has 9 states, 9 states have (on average 69.55555555555556) internal successors, (626), 8 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:55,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:55:55,974 INFO L93 Difference]: Finished difference Result 174900 states and 342654 transitions. [2024-11-09 19:55:55,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 19:55:55,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 69.55555555555556) internal successors, (626), 8 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 373 [2024-11-09 19:55:55,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:55:56,106 INFO L225 Difference]: With dead ends: 174900 [2024-11-09 19:55:56,106 INFO L226 Difference]: Without dead ends: 96095 [2024-11-09 19:55:56,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 741 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-11-09 19:55:56,141 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 5414 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 10987 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5414 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 11872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 10987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:55:56,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5414 Valid, 466 Invalid, 11872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [885 Valid, 10987 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-09 19:55:56,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96095 states. [2024-11-09 19:55:57,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96095 to 84324. [2024-11-09 19:55:57,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84324 states, 84323 states have (on average 1.9546980064751016) internal successors, (164826), 84323 states have internal predecessors, (164826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:57,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84324 states to 84324 states and 164826 transitions. [2024-11-09 19:55:57,731 INFO L78 Accepts]: Start accepts. Automaton has 84324 states and 164826 transitions. Word has length 373 [2024-11-09 19:55:57,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:55:57,732 INFO L471 AbstractCegarLoop]: Abstraction has 84324 states and 164826 transitions. [2024-11-09 19:55:57,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 69.55555555555556) internal successors, (626), 8 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:55:57,732 INFO L276 IsEmpty]: Start isEmpty. Operand 84324 states and 164826 transitions. [2024-11-09 19:55:57,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2024-11-09 19:55:57,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:55:57,739 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:55:57,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 19:55:57,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:55:57,939 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:55:57,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:55:57,940 INFO L85 PathProgramCache]: Analyzing trace with hash 601267103, now seen corresponding path program 1 times [2024-11-09 19:55:57,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:55:57,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997006981] [2024-11-09 19:55:57,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:55:57,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:55:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:55:58,322 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-11-09 19:55:58,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:55:58,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997006981] [2024-11-09 19:55:58,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997006981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:55:58,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:55:58,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:55:58,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973140607] [2024-11-09 19:55:58,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:55:58,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:55:58,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:55:58,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:55:58,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:55:58,325 INFO L87 Difference]: Start difference. First operand 84324 states and 164826 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:56:00,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:56:00,838 INFO L93 Difference]: Finished difference Result 193820 states and 379109 transitions. [2024-11-09 19:56:00,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:56:00,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 434 [2024-11-09 19:56:00,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:56:00,991 INFO L225 Difference]: With dead ends: 193820 [2024-11-09 19:56:00,992 INFO L226 Difference]: Without dead ends: 109496 [2024-11-09 19:56:01,032 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 [2024-11-09 19:56:01,034 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 797 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:56:01,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 355 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:56:01,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109496 states. [2024-11-09 19:56:02,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109496 to 103929. [2024-11-09 19:56:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103929 states, 103928 states have (on average 1.9423350781310138) internal successors, (201863), 103928 states have internal predecessors, (201863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:56:03,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103929 states to 103929 states and 201863 transitions. [2024-11-09 19:56:03,150 INFO L78 Accepts]: Start accepts. Automaton has 103929 states and 201863 transitions. Word has length 434 [2024-11-09 19:56:03,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:56:03,151 INFO L471 AbstractCegarLoop]: Abstraction has 103929 states and 201863 transitions. [2024-11-09 19:56:03,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:56:03,151 INFO L276 IsEmpty]: Start isEmpty. Operand 103929 states and 201863 transitions. [2024-11-09 19:56:03,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-09 19:56:03,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:56:03,156 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:56:03,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:56:03,157 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:56:03,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:56:03,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1205136549, now seen corresponding path program 1 times [2024-11-09 19:56:03,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:56:03,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655186782] [2024-11-09 19:56:03,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:56:03,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:56:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:56:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 643 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 19:56:03,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:56:03,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655186782] [2024-11-09 19:56:03,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655186782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:56:03,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:56:03,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:56:03,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589919457] [2024-11-09 19:56:03,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:56:03,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:56:03,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:56:03,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:56:03,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:56:03,761 INFO L87 Difference]: Start difference. First operand 103929 states and 201863 transitions. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:56:05,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:56:05,990 INFO L93 Difference]: Finished difference Result 220243 states and 427454 transitions. [2024-11-09 19:56:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:56:05,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 456 [2024-11-09 19:56:05,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:56:06,156 INFO L225 Difference]: With dead ends: 220243 [2024-11-09 19:56:06,156 INFO L226 Difference]: Without dead ends: 116316 [2024-11-09 19:56:06,214 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 [2024-11-09 19:56:06,214 INFO L432 NwaCegarLoop]: 1079 mSDtfsCounter, 694 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:56:06,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1134 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:56:06,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116316 states. [2024-11-09 19:56:07,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116316 to 112460. [2024-11-09 19:56:07,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112460 states, 112459 states have (on average 1.936421273530798) internal successors, (217768), 112459 states have internal predecessors, (217768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:56:08,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112460 states to 112460 states and 217768 transitions. [2024-11-09 19:56:08,449 INFO L78 Accepts]: Start accepts. Automaton has 112460 states and 217768 transitions. Word has length 456 [2024-11-09 19:56:08,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:56:08,450 INFO L471 AbstractCegarLoop]: Abstraction has 112460 states and 217768 transitions. [2024-11-09 19:56:08,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:56:08,450 INFO L276 IsEmpty]: Start isEmpty. Operand 112460 states and 217768 transitions. [2024-11-09 19:56:08,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2024-11-09 19:56:08,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:56:08,463 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:56:08,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 19:56:08,464 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:56:08,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:56:08,464 INFO L85 PathProgramCache]: Analyzing trace with hash -2093372877, now seen corresponding path program 1 times [2024-11-09 19:56:08,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:56:08,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926850962] [2024-11-09 19:56:08,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:56:08,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:56:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:56:08,665 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-11-09 19:56:08,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:56:08,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926850962] [2024-11-09 19:56:08,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926850962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:56:08,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:56:08,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:56:08,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132399407] [2024-11-09 19:56:08,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:56:08,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:56:08,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:56:08,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:56:08,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:56:08,667 INFO L87 Difference]: Start difference. First operand 112460 states and 217768 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:56:10,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:56:10,969 INFO L93 Difference]: Finished difference Result 234722 states and 454710 transitions. [2024-11-09 19:56:10,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:56:10,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 499 [2024-11-09 19:56:10,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:56:11,444 INFO L225 Difference]: With dead ends: 234722 [2024-11-09 19:56:11,448 INFO L226 Difference]: Without dead ends: 122264 [2024-11-09 19:56:11,520 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 [2024-11-09 19:56:11,521 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 856 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:56:11,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 1067 Invalid, 2060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:56:11,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122264 states. [2024-11-09 19:56:13,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122264 to 121834. [2024-11-09 19:56:13,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121834 states, 121833 states have (on average 1.931406105078263) internal successors, (235309), 121833 states have internal predecessors, (235309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:56:13,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121834 states to 121834 states and 235309 transitions. [2024-11-09 19:56:13,703 INFO L78 Accepts]: Start accepts. Automaton has 121834 states and 235309 transitions. Word has length 499 [2024-11-09 19:56:13,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:56:13,704 INFO L471 AbstractCegarLoop]: Abstraction has 121834 states and 235309 transitions. [2024-11-09 19:56:13,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:56:13,704 INFO L276 IsEmpty]: Start isEmpty. Operand 121834 states and 235309 transitions. [2024-11-09 19:56:13,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2024-11-09 19:56:13,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:56:13,710 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:56:13,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:56:13,710 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:56:13,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:56:13,711 INFO L85 PathProgramCache]: Analyzing trace with hash -147288841, now seen corresponding path program 1 times [2024-11-09 19:56:13,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:56:13,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964795239] [2024-11-09 19:56:13,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:56:13,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:56:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:56:13,984 INFO L134 CoverageAnalysis]: Checked inductivity of 838 backedges. 658 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 19:56:13,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:56:13,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964795239] [2024-11-09 19:56:13,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964795239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:56:13,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:56:13,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:56:13,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594702532] [2024-11-09 19:56:13,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:56:13,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:56:13,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:56:13,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:56:13,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:56:13,986 INFO L87 Difference]: Start difference. First operand 121834 states and 235309 transitions. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:56:16,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:56:16,746 INFO L93 Difference]: Finished difference Result 256467 states and 495388 transitions. [2024-11-09 19:56:16,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:56:16,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 506 [2024-11-09 19:56:16,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:56:17,003 INFO L225 Difference]: With dead ends: 256467 [2024-11-09 19:56:17,003 INFO L226 Difference]: Without dead ends: 134204 [2024-11-09 19:56:17,040 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 [2024-11-09 19:56:17,040 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 684 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:56:17,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 296 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:56:17,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134204 states. [2024-11-09 19:56:18,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134204 to 128647. [2024-11-09 19:56:18,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128647 states, 128646 states have (on average 1.9199430996688587) internal successors, (246993), 128646 states have internal predecessors, (246993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:56:19,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128647 states to 128647 states and 246993 transitions. [2024-11-09 19:56:19,354 INFO L78 Accepts]: Start accepts. Automaton has 128647 states and 246993 transitions. Word has length 506 [2024-11-09 19:56:19,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:56:19,354 INFO L471 AbstractCegarLoop]: Abstraction has 128647 states and 246993 transitions. [2024-11-09 19:56:19,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:56:19,355 INFO L276 IsEmpty]: Start isEmpty. Operand 128647 states and 246993 transitions. [2024-11-09 19:56:19,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2024-11-09 19:56:19,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:56:19,367 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:56:19,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 19:56:19,367 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:56:19,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:56:19,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1281663385, now seen corresponding path program 1 times [2024-11-09 19:56:19,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:56:19,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404727073] [2024-11-09 19:56:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:56:19,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:56:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 19:56:19,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 19:56:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 19:56:19,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 19:56:19,881 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 19:56:19,882 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 19:56:19,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 19:56:19,886 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:56:20,030 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 19:56:20,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:56:20 BoogieIcfgContainer [2024-11-09 19:56:20,034 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 19:56:20,035 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 19:56:20,035 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 19:56:20,035 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 19:56:20,035 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:55:07" (3/4) ... [2024-11-09 19:56:20,036 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 19:56:20,185 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 19:56:20,186 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 19:56:20,186 INFO L158 Benchmark]: Toolchain (without parser) took 77949.91ms. Allocated memory was 174.1MB in the beginning and 12.6GB in the end (delta: 12.5GB). Free memory was 108.6MB in the beginning and 8.8GB in the end (delta: -8.7GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. [2024-11-09 19:56:20,186 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 174.1MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 19:56:20,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 974.29ms. Allocated memory was 174.1MB in the beginning and 247.5MB in the end (delta: 73.4MB). Free memory was 108.6MB in the beginning and 130.7MB in the end (delta: -22.0MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2024-11-09 19:56:20,187 INFO L158 Benchmark]: Boogie Procedure Inliner took 287.00ms. Allocated memory is still 247.5MB. Free memory was 130.7MB in the beginning and 163.1MB in the end (delta: -32.4MB). Peak memory consumption was 106.1MB. Max. memory is 16.1GB. [2024-11-09 19:56:20,187 INFO L158 Benchmark]: Boogie Preprocessor took 410.55ms. Allocated memory is still 247.5MB. Free memory was 163.1MB in the beginning and 142.0MB in the end (delta: 21.1MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2024-11-09 19:56:20,187 INFO L158 Benchmark]: IcfgBuilder took 3227.60ms. Allocated memory was 247.5MB in the beginning and 459.3MB in the end (delta: 211.8MB). Free memory was 142.0MB in the beginning and 149.4MB in the end (delta: -7.4MB). Peak memory consumption was 211.7MB. Max. memory is 16.1GB. [2024-11-09 19:56:20,189 INFO L158 Benchmark]: TraceAbstraction took 72891.45ms. Allocated memory was 459.3MB in the beginning and 12.6GB in the end (delta: 12.2GB). Free memory was 148.4MB in the beginning and 8.8GB in the end (delta: -8.7GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. [2024-11-09 19:56:20,191 INFO L158 Benchmark]: Witness Printer took 151.06ms. Allocated memory is still 12.6GB. Free memory was 8.8GB in the beginning and 8.8GB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-09 19:56:20,192 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 174.1MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 974.29ms. Allocated memory was 174.1MB in the beginning and 247.5MB in the end (delta: 73.4MB). Free memory was 108.6MB in the beginning and 130.7MB in the end (delta: -22.0MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 287.00ms. Allocated memory is still 247.5MB. Free memory was 130.7MB in the beginning and 163.1MB in the end (delta: -32.4MB). Peak memory consumption was 106.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 410.55ms. Allocated memory is still 247.5MB. Free memory was 163.1MB in the beginning and 142.0MB in the end (delta: 21.1MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. * IcfgBuilder took 3227.60ms. Allocated memory was 247.5MB in the beginning and 459.3MB in the end (delta: 211.8MB). Free memory was 142.0MB in the beginning and 149.4MB in the end (delta: -7.4MB). Peak memory consumption was 211.7MB. Max. memory is 16.1GB. * TraceAbstraction took 72891.45ms. Allocated memory was 459.3MB in the beginning and 12.6GB in the end (delta: 12.2GB). Free memory was 148.4MB in the beginning and 8.8GB in the end (delta: -8.7GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. * Witness Printer took 151.06ms. Allocated memory is still 12.6GB. Free memory was 8.8GB in the beginning and 8.8GB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB.