./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/hardware-verification-bv/btor2c-lazyMod.cal51.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 722f66c27e0daab44069acf5d7094f3a7f8b832453955e57154e2bc2fe9dd95b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 10:40:42,437 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 10:40:42,510 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 10:40:42,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 10:40:42,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 10:40:42,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 10:40:42,547 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 10:40:42,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 10:40:42,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 10:40:42,548 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 10:40:42,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 10:40:42,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 10:40:42,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 10:40:42,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 10:40:42,549 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 10:40:42,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 10:40:42,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 10:40:42,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 10:40:42,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 10:40:42,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 10:40:42,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 10:40:42,551 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 10:40:42,551 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 10:40:42,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 10:40:42,552 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 10:40:42,552 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 10:40:42,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 10:40:42,552 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 10:40:42,553 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 10:40:42,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:40:42,553 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 10:40:42,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 10:40:42,553 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 10:40:42,554 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 10:40:42,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 10:40:42,554 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 10:40:42,554 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 10:40:42,554 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 10:40:42,555 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 10:40:42,555 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 722f66c27e0daab44069acf5d7094f3a7f8b832453955e57154e2bc2fe9dd95b [2024-11-16 10:40:42,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 10:40:42,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 10:40:42,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 10:40:42,865 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 10:40:42,865 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 10:40:42,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c [2024-11-16 10:40:44,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 10:40:44,318 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 10:40:44,318 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c [2024-11-16 10:40:44,328 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29797604/a957fa52a3754c4d88fd71e6eb412e41/FLAG9c7bd9721 [2024-11-16 10:40:44,339 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d29797604/a957fa52a3754c4d88fd71e6eb412e41 [2024-11-16 10:40:44,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 10:40:44,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 10:40:44,344 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 10:40:44,344 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 10:40:44,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 10:40:44,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53aaaadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44, skipping insertion in model container [2024-11-16 10:40:44,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,368 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 10:40:44,507 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/hardware-verification-bv/btor2c-lazyMod.cal51.c[1245,1258] [2024-11-16 10:40:44,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:40:44,562 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 10:40:44,571 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/hardware-verification-bv/btor2c-lazyMod.cal51.c[1245,1258] [2024-11-16 10:40:44,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:40:44,623 INFO L204 MainTranslator]: Completed translation [2024-11-16 10:40:44,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44 WrapperNode [2024-11-16 10:40:44,624 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 10:40:44,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 10:40:44,625 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 10:40:44,625 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 10:40:44,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,737 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 369 [2024-11-16 10:40:44,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 10:40:44,738 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 10:40:44,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 10:40:44,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 10:40:44,750 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,768 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,809 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-16 10:40:44,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,824 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 10:40:44,851 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 10:40:44,851 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 10:40:44,851 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 10:40:44,852 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44" (1/1) ... [2024-11-16 10:40:44,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:40:44,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:40:44,887 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) [2024-11-16 10:40:44,894 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 [2024-11-16 10:40:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 10:40:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 10:40:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 10:40:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 10:40:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 10:40:45,042 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 10:40:45,044 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 10:40:45,517 INFO L? ?]: Removed 168 outVars from TransFormulas that were not future-live. [2024-11-16 10:40:45,518 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 10:40:45,551 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 10:40:45,551 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 10:40:45,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:40:45 BoogieIcfgContainer [2024-11-16 10:40:45,553 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 10:40:45,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 10:40:45,555 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 10:40:45,558 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 10:40:45,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:40:44" (1/3) ... [2024-11-16 10:40:45,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e67551c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:40:45, skipping insertion in model container [2024-11-16 10:40:45,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:44" (2/3) ... [2024-11-16 10:40:45,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e67551c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:40:45, skipping insertion in model container [2024-11-16 10:40:45,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:40:45" (3/3) ... [2024-11-16 10:40:45,561 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal51.c [2024-11-16 10:40:45,574 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 10:40:45,575 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 10:40:45,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 10:40:45,637 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;@2863d480, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 10:40:45,637 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 10:40:45,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 91 states have (on average 1.4725274725274726) internal successors, (134), 92 states have internal predecessors, (134), 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) [2024-11-16 10:40:45,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 10:40:45,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:45,649 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:45,649 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:45,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:45,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1734607019, now seen corresponding path program 1 times [2024-11-16 10:40:45,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:45,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125574438] [2024-11-16 10:40:45,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:45,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:46,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:46,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:46,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125574438] [2024-11-16 10:40:46,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125574438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:46,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:46,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:40:46,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745403212] [2024-11-16 10:40:46,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:46,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:40:46,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:46,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:40:46,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:40:46,260 INFO L87 Difference]: Start difference. First operand has 93 states, 91 states have (on average 1.4725274725274726) internal successors, (134), 92 states have internal predecessors, (134), 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 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2024-11-16 10:40:46,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:46,340 INFO L93 Difference]: Finished difference Result 165 states and 241 transitions. [2024-11-16 10:40:46,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:40:46,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2024-11-16 10:40:46,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:46,349 INFO L225 Difference]: With dead ends: 165 [2024-11-16 10:40:46,349 INFO L226 Difference]: Without dead ends: 90 [2024-11-16 10:40:46,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:40:46,353 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:46,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 313 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:40:46,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-16 10:40:46,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-16 10:40:46,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.4606741573033708) internal successors, (130), 89 states have internal predecessors, (130), 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) [2024-11-16 10:40:46,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 130 transitions. [2024-11-16 10:40:46,381 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 130 transitions. Word has length 40 [2024-11-16 10:40:46,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:46,381 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 130 transitions. [2024-11-16 10:40:46,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2024-11-16 10:40:46,382 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 130 transitions. [2024-11-16 10:40:46,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-16 10:40:46,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:46,383 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:46,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 10:40:46,383 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:46,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:46,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1916703861, now seen corresponding path program 1 times [2024-11-16 10:40:46,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:46,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994761221] [2024-11-16 10:40:46,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:46,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:46,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:46,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:46,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994761221] [2024-11-16 10:40:46,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994761221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:46,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:46,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:40:46,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836913193] [2024-11-16 10:40:46,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:46,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:40:46,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:46,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:40:46,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:40:46,616 INFO L87 Difference]: Start difference. First operand 90 states and 130 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2024-11-16 10:40:46,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:46,694 INFO L93 Difference]: Finished difference Result 164 states and 237 transitions. [2024-11-16 10:40:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:40:46,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2024-11-16 10:40:46,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:46,696 INFO L225 Difference]: With dead ends: 164 [2024-11-16 10:40:46,696 INFO L226 Difference]: Without dead ends: 92 [2024-11-16 10:40:46,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:40:46,698 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:46,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 310 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:40:46,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-16 10:40:46,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-16 10:40:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.4505494505494505) internal successors, (132), 91 states have internal predecessors, (132), 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) [2024-11-16 10:40:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 132 transitions. [2024-11-16 10:40:46,709 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 132 transitions. Word has length 41 [2024-11-16 10:40:46,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:46,709 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 132 transitions. [2024-11-16 10:40:46,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2024-11-16 10:40:46,709 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 132 transitions. [2024-11-16 10:40:46,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-16 10:40:46,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:46,711 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:46,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 10:40:46,712 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:46,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:46,713 INFO L85 PathProgramCache]: Analyzing trace with hash 458966032, now seen corresponding path program 1 times [2024-11-16 10:40:46,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:46,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872719080] [2024-11-16 10:40:46,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:46,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:46,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:46,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:46,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872719080] [2024-11-16 10:40:46,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872719080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:46,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:46,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:40:46,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936096201] [2024-11-16 10:40:46,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:46,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:40:46,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:46,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:40:46,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:40:46,971 INFO L87 Difference]: Start difference. First operand 92 states and 132 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-11-16 10:40:47,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:47,044 INFO L93 Difference]: Finished difference Result 166 states and 238 transitions. [2024-11-16 10:40:47,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:40:47,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2024-11-16 10:40:47,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:47,045 INFO L225 Difference]: With dead ends: 166 [2024-11-16 10:40:47,045 INFO L226 Difference]: Without dead ends: 92 [2024-11-16 10:40:47,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:40:47,046 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 29 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:47,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 283 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:40:47,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-16 10:40:47,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-16 10:40:47,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.4395604395604396) internal successors, (131), 91 states have internal predecessors, (131), 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) [2024-11-16 10:40:47,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 131 transitions. [2024-11-16 10:40:47,051 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 131 transitions. Word has length 42 [2024-11-16 10:40:47,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:47,051 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 131 transitions. [2024-11-16 10:40:47,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-11-16 10:40:47,051 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 131 transitions. [2024-11-16 10:40:47,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-16 10:40:47,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:47,052 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:47,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 10:40:47,052 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:47,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:47,052 INFO L85 PathProgramCache]: Analyzing trace with hash 482169800, now seen corresponding path program 1 times [2024-11-16 10:40:47,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:47,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834795176] [2024-11-16 10:40:47,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:47,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:47,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:47,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:47,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834795176] [2024-11-16 10:40:47,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834795176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:47,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:47,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:40:47,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477094740] [2024-11-16 10:40:47,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:47,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:40:47,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:47,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:40:47,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:40:47,368 INFO L87 Difference]: Start difference. First operand 92 states and 131 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2024-11-16 10:40:47,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:47,500 INFO L93 Difference]: Finished difference Result 170 states and 242 transitions. [2024-11-16 10:40:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 10:40:47,500 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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 43 [2024-11-16 10:40:47,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:47,502 INFO L225 Difference]: With dead ends: 170 [2024-11-16 10:40:47,503 INFO L226 Difference]: Without dead ends: 96 [2024-11-16 10:40:47,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 10:40:47,505 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 143 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:47,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 434 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:40:47,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-16 10:40:47,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 95. [2024-11-16 10:40:47,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.425531914893617) internal successors, (134), 94 states have internal predecessors, (134), 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) [2024-11-16 10:40:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 134 transitions. [2024-11-16 10:40:47,514 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 134 transitions. Word has length 43 [2024-11-16 10:40:47,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:47,516 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 134 transitions. [2024-11-16 10:40:47,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2024-11-16 10:40:47,516 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 134 transitions. [2024-11-16 10:40:47,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-16 10:40:47,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:47,517 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:47,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 10:40:47,519 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:47,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:47,519 INFO L85 PathProgramCache]: Analyzing trace with hash 203555677, now seen corresponding path program 1 times [2024-11-16 10:40:47,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:47,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63465520] [2024-11-16 10:40:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:47,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:47,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:47,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63465520] [2024-11-16 10:40:47,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63465520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:47,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:47,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:40:47,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041088183] [2024-11-16 10:40:47,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:47,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:40:47,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:47,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:40:47,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:40:47,645 INFO L87 Difference]: Start difference. First operand 95 states and 134 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2024-11-16 10:40:47,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:47,762 INFO L93 Difference]: Finished difference Result 175 states and 246 transitions. [2024-11-16 10:40:47,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:40:47,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 44 [2024-11-16 10:40:47,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:47,764 INFO L225 Difference]: With dead ends: 175 [2024-11-16 10:40:47,764 INFO L226 Difference]: Without dead ends: 98 [2024-11-16 10:40:47,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:40:47,766 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:47,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 306 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:40:47,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-16 10:40:47,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-16 10:40:47,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.4123711340206186) internal successors, (137), 97 states have internal predecessors, (137), 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) [2024-11-16 10:40:47,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2024-11-16 10:40:47,774 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 44 [2024-11-16 10:40:47,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:47,774 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2024-11-16 10:40:47,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2024-11-16 10:40:47,775 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2024-11-16 10:40:47,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-16 10:40:47,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:47,776 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:47,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 10:40:47,776 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:47,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:47,776 INFO L85 PathProgramCache]: Analyzing trace with hash -509652592, now seen corresponding path program 1 times [2024-11-16 10:40:47,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:47,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666325052] [2024-11-16 10:40:47,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:47,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:47,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:47,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:47,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666325052] [2024-11-16 10:40:47,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666325052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:47,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:47,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:40:47,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922204640] [2024-11-16 10:40:47,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:47,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:40:47,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:47,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:40:47,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:40:47,983 INFO L87 Difference]: Start difference. First operand 98 states and 137 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-16 10:40:48,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:48,069 INFO L93 Difference]: Finished difference Result 178 states and 248 transitions. [2024-11-16 10:40:48,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:40:48,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 45 [2024-11-16 10:40:48,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:48,070 INFO L225 Difference]: With dead ends: 178 [2024-11-16 10:40:48,070 INFO L226 Difference]: Without dead ends: 98 [2024-11-16 10:40:48,070 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 [2024-11-16 10:40:48,071 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 115 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:48,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 131 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:40:48,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-16 10:40:48,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-16 10:40:48,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.402061855670103) internal successors, (136), 97 states have internal predecessors, (136), 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) [2024-11-16 10:40:48,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 136 transitions. [2024-11-16 10:40:48,077 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 136 transitions. Word has length 45 [2024-11-16 10:40:48,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:48,077 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 136 transitions. [2024-11-16 10:40:48,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-16 10:40:48,078 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 136 transitions. [2024-11-16 10:40:48,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-16 10:40:48,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:48,082 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:48,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 10:40:48,082 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:48,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:48,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1149814761, now seen corresponding path program 1 times [2024-11-16 10:40:48,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:48,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039531383] [2024-11-16 10:40:48,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:48,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:48,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:48,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039531383] [2024-11-16 10:40:48,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039531383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:48,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:48,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 10:40:48,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136803835] [2024-11-16 10:40:48,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:48,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 10:40:48,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:48,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 10:40:48,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:40:48,347 INFO L87 Difference]: Start difference. First operand 98 states and 136 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2024-11-16 10:40:48,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:48,469 INFO L93 Difference]: Finished difference Result 246 states and 338 transitions. [2024-11-16 10:40:48,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:40:48,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2024-11-16 10:40:48,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:48,471 INFO L225 Difference]: With dead ends: 246 [2024-11-16 10:40:48,471 INFO L226 Difference]: Without dead ends: 166 [2024-11-16 10:40:48,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-16 10:40:48,472 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 302 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:48,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 389 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:40:48,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-16 10:40:48,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 146. [2024-11-16 10:40:48,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.393103448275862) internal successors, (202), 145 states have internal predecessors, (202), 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) [2024-11-16 10:40:48,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 202 transitions. [2024-11-16 10:40:48,485 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 202 transitions. Word has length 46 [2024-11-16 10:40:48,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:48,486 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 202 transitions. [2024-11-16 10:40:48,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2024-11-16 10:40:48,486 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 202 transitions. [2024-11-16 10:40:48,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-16 10:40:48,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:48,487 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:48,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 10:40:48,491 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:48,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:48,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1420143487, now seen corresponding path program 1 times [2024-11-16 10:40:48,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:48,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995532093] [2024-11-16 10:40:48,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:48,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:48,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:48,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:48,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995532093] [2024-11-16 10:40:48,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995532093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:48,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:48,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 10:40:48,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085414130] [2024-11-16 10:40:48,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:48,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 10:40:48,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:48,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 10:40:48,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:40:48,803 INFO L87 Difference]: Start difference. First operand 146 states and 202 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-11-16 10:40:48,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:48,951 INFO L93 Difference]: Finished difference Result 244 states and 336 transitions. [2024-11-16 10:40:48,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 10:40:48,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 47 [2024-11-16 10:40:48,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:48,953 INFO L225 Difference]: With dead ends: 244 [2024-11-16 10:40:48,953 INFO L226 Difference]: Without dead ends: 154 [2024-11-16 10:40:48,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:40:48,954 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 104 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:48,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 190 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:40:48,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-16 10:40:48,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2024-11-16 10:40:48,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.3774834437086092) internal successors, (208), 151 states have internal predecessors, (208), 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) [2024-11-16 10:40:48,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 208 transitions. [2024-11-16 10:40:48,963 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 208 transitions. Word has length 47 [2024-11-16 10:40:48,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:48,964 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 208 transitions. [2024-11-16 10:40:48,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-11-16 10:40:48,964 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 208 transitions. [2024-11-16 10:40:48,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-16 10:40:48,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:48,966 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:48,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 10:40:48,966 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:48,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:48,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1743599702, now seen corresponding path program 1 times [2024-11-16 10:40:48,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:48,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391382816] [2024-11-16 10:40:48,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:48,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:49,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:49,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:49,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391382816] [2024-11-16 10:40:49,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391382816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:49,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:49,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 10:40:49,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314515402] [2024-11-16 10:40:49,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:49,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 10:40:49,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:49,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 10:40:49,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 10:40:49,218 INFO L87 Difference]: Start difference. First operand 152 states and 208 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-11-16 10:40:49,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:49,300 INFO L93 Difference]: Finished difference Result 307 states and 415 transitions. [2024-11-16 10:40:49,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 10:40:49,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2024-11-16 10:40:49,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:49,304 INFO L225 Difference]: With dead ends: 307 [2024-11-16 10:40:49,304 INFO L226 Difference]: Without dead ends: 218 [2024-11-16 10:40:49,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 10:40:49,304 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 158 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:49,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 397 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:40:49,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-16 10:40:49,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 214. [2024-11-16 10:40:49,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.3427230046948357) internal successors, (286), 213 states have internal predecessors, (286), 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) [2024-11-16 10:40:49,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 286 transitions. [2024-11-16 10:40:49,309 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 286 transitions. Word has length 48 [2024-11-16 10:40:49,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:49,309 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 286 transitions. [2024-11-16 10:40:49,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-11-16 10:40:49,313 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 286 transitions. [2024-11-16 10:40:49,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-16 10:40:49,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:49,313 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:49,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 10:40:49,314 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:49,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:49,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1170524246, now seen corresponding path program 1 times [2024-11-16 10:40:49,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:49,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242506038] [2024-11-16 10:40:49,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:49,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:49,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:49,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242506038] [2024-11-16 10:40:49,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242506038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:49,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:49,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 10:40:49,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684908762] [2024-11-16 10:40:49,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:49,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 10:40:49,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:49,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 10:40:49,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 10:40:49,517 INFO L87 Difference]: Start difference. First operand 214 states and 286 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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) [2024-11-16 10:40:49,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:49,667 INFO L93 Difference]: Finished difference Result 350 states and 466 transitions. [2024-11-16 10:40:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 10:40:49,668 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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 49 [2024-11-16 10:40:49,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:49,669 INFO L225 Difference]: With dead ends: 350 [2024-11-16 10:40:49,669 INFO L226 Difference]: Without dead ends: 236 [2024-11-16 10:40:49,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-16 10:40:49,669 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 303 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:49,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 572 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:40:49,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-16 10:40:49,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 217. [2024-11-16 10:40:49,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.3425925925925926) internal successors, (290), 216 states have internal predecessors, (290), 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) [2024-11-16 10:40:49,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 290 transitions. [2024-11-16 10:40:49,676 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 290 transitions. Word has length 49 [2024-11-16 10:40:49,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:49,677 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 290 transitions. [2024-11-16 10:40:49,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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) [2024-11-16 10:40:49,677 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 290 transitions. [2024-11-16 10:40:49,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-16 10:40:49,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:49,677 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:49,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 10:40:49,678 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:49,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:49,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1690260891, now seen corresponding path program 1 times [2024-11-16 10:40:49,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:49,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946111107] [2024-11-16 10:40:49,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:49,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:49,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:49,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:49,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946111107] [2024-11-16 10:40:49,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946111107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:49,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:49,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:40:49,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037780104] [2024-11-16 10:40:49,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:49,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:40:49,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:49,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:40:49,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:40:49,812 INFO L87 Difference]: Start difference. First operand 217 states and 290 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-16 10:40:49,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:49,890 INFO L93 Difference]: Finished difference Result 384 states and 512 transitions. [2024-11-16 10:40:49,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:40:49,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2024-11-16 10:40:49,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:49,891 INFO L225 Difference]: With dead ends: 384 [2024-11-16 10:40:49,892 INFO L226 Difference]: Without dead ends: 205 [2024-11-16 10:40:49,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:40:49,892 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 106 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:49,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 132 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:40:49,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-16 10:40:49,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-16 10:40:49,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.3235294117647058) internal successors, (270), 204 states have internal predecessors, (270), 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) [2024-11-16 10:40:49,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 270 transitions. [2024-11-16 10:40:49,899 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 270 transitions. Word has length 50 [2024-11-16 10:40:49,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:49,899 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 270 transitions. [2024-11-16 10:40:49,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-16 10:40:49,899 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 270 transitions. [2024-11-16 10:40:49,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-16 10:40:49,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:49,899 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:49,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 10:40:49,900 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:49,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:49,900 INFO L85 PathProgramCache]: Analyzing trace with hash 134705616, now seen corresponding path program 1 times [2024-11-16 10:40:49,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:49,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786083048] [2024-11-16 10:40:49,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:49,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:50,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:50,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:50,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786083048] [2024-11-16 10:40:50,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786083048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:50,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:50,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 10:40:50,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855514416] [2024-11-16 10:40:50,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:50,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 10:40:50,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:50,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 10:40:50,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-16 10:40:50,369 INFO L87 Difference]: Start difference. First operand 205 states and 270 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 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) [2024-11-16 10:40:50,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:50,611 INFO L93 Difference]: Finished difference Result 332 states and 435 transitions. [2024-11-16 10:40:50,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 10:40:50,612 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 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 51 [2024-11-16 10:40:50,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:50,613 INFO L225 Difference]: With dead ends: 332 [2024-11-16 10:40:50,614 INFO L226 Difference]: Without dead ends: 224 [2024-11-16 10:40:50,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-11-16 10:40:50,615 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 289 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:50,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 724 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:40:50,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-16 10:40:50,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 209. [2024-11-16 10:40:50,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.3221153846153846) internal successors, (275), 208 states have internal predecessors, (275), 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) [2024-11-16 10:40:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 275 transitions. [2024-11-16 10:40:50,623 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 275 transitions. Word has length 51 [2024-11-16 10:40:50,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:50,623 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 275 transitions. [2024-11-16 10:40:50,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 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) [2024-11-16 10:40:50,623 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 275 transitions. [2024-11-16 10:40:50,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-16 10:40:50,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:50,624 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:50,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 10:40:50,624 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:50,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:50,624 INFO L85 PathProgramCache]: Analyzing trace with hash -625254960, now seen corresponding path program 1 times [2024-11-16 10:40:50,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:50,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907578551] [2024-11-16 10:40:50,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:50,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:50,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:50,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:50,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907578551] [2024-11-16 10:40:50,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907578551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:50,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:50,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 10:40:50,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541152198] [2024-11-16 10:40:50,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:50,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 10:40:50,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:50,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 10:40:50,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 10:40:50,968 INFO L87 Difference]: Start difference. First operand 209 states and 275 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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) [2024-11-16 10:40:51,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:51,117 INFO L93 Difference]: Finished difference Result 338 states and 446 transitions. [2024-11-16 10:40:51,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 10:40:51,118 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 52 [2024-11-16 10:40:51,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:51,119 INFO L225 Difference]: With dead ends: 338 [2024-11-16 10:40:51,120 INFO L226 Difference]: Without dead ends: 221 [2024-11-16 10:40:51,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-16 10:40:51,121 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 156 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:51,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 517 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:40:51,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-16 10:40:51,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 217. [2024-11-16 10:40:51,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.3194444444444444) internal successors, (285), 216 states have internal predecessors, (285), 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) [2024-11-16 10:40:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 285 transitions. [2024-11-16 10:40:51,128 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 285 transitions. Word has length 52 [2024-11-16 10:40:51,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:51,129 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 285 transitions. [2024-11-16 10:40:51,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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) [2024-11-16 10:40:51,129 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 285 transitions. [2024-11-16 10:40:51,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-16 10:40:51,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:51,129 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:51,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 10:40:51,129 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:51,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:51,130 INFO L85 PathProgramCache]: Analyzing trace with hash -453182912, now seen corresponding path program 1 times [2024-11-16 10:40:51,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:51,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355039573] [2024-11-16 10:40:51,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:51,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:51,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:51,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:51,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355039573] [2024-11-16 10:40:51,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355039573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:51,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:51,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 10:40:51,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180704160] [2024-11-16 10:40:51,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:51,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 10:40:51,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:51,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 10:40:51,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-16 10:40:51,724 INFO L87 Difference]: Start difference. First operand 217 states and 285 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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) [2024-11-16 10:40:52,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:52,287 INFO L93 Difference]: Finished difference Result 411 states and 535 transitions. [2024-11-16 10:40:52,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 10:40:52,287 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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 52 [2024-11-16 10:40:52,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:52,288 INFO L225 Difference]: With dead ends: 411 [2024-11-16 10:40:52,288 INFO L226 Difference]: Without dead ends: 271 [2024-11-16 10:40:52,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-16 10:40:52,289 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 133 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:52,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 301 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 10:40:52,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-16 10:40:52,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 237. [2024-11-16 10:40:52,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 236 states have (on average 1.3008474576271187) internal successors, (307), 236 states have internal predecessors, (307), 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) [2024-11-16 10:40:52,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 307 transitions. [2024-11-16 10:40:52,294 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 307 transitions. Word has length 52 [2024-11-16 10:40:52,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:52,294 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 307 transitions. [2024-11-16 10:40:52,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 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) [2024-11-16 10:40:52,294 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 307 transitions. [2024-11-16 10:40:52,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-16 10:40:52,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:52,295 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:52,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 10:40:52,295 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:52,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:52,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1677532996, now seen corresponding path program 1 times [2024-11-16 10:40:52,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:52,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406244077] [2024-11-16 10:40:52,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:52,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:52,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:52,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:52,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406244077] [2024-11-16 10:40:52,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406244077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:52,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:52,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 10:40:52,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035561286] [2024-11-16 10:40:52,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:52,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 10:40:52,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:52,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 10:40:52,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-16 10:40:52,640 INFO L87 Difference]: Start difference. First operand 237 states and 307 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 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) [2024-11-16 10:40:52,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:52,871 INFO L93 Difference]: Finished difference Result 404 states and 523 transitions. [2024-11-16 10:40:52,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 10:40:52,871 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 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 53 [2024-11-16 10:40:52,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:52,873 INFO L225 Difference]: With dead ends: 404 [2024-11-16 10:40:52,873 INFO L226 Difference]: Without dead ends: 237 [2024-11-16 10:40:52,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-16 10:40:52,875 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 104 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:52,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 246 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:40:52,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-16 10:40:52,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 205. [2024-11-16 10:40:52,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.2990196078431373) internal successors, (265), 204 states have internal predecessors, (265), 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) [2024-11-16 10:40:52,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 265 transitions. [2024-11-16 10:40:52,880 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 265 transitions. Word has length 53 [2024-11-16 10:40:52,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:52,880 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 265 transitions. [2024-11-16 10:40:52,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 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) [2024-11-16 10:40:52,881 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 265 transitions. [2024-11-16 10:40:52,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-16 10:40:52,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:52,881 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:52,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 10:40:52,882 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:52,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:52,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1835106550, now seen corresponding path program 1 times [2024-11-16 10:40:52,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:52,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912790026] [2024-11-16 10:40:52,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:52,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:53,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:53,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:53,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912790026] [2024-11-16 10:40:53,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912790026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:53,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:53,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:40:53,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635569266] [2024-11-16 10:40:53,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:53,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:40:53,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:53,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:40:53,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:40:53,031 INFO L87 Difference]: Start difference. First operand 205 states and 265 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-16 10:40:53,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:53,070 INFO L93 Difference]: Finished difference Result 324 states and 419 transitions. [2024-11-16 10:40:53,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:40:53,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2024-11-16 10:40:53,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:53,071 INFO L225 Difference]: With dead ends: 324 [2024-11-16 10:40:53,071 INFO L226 Difference]: Without dead ends: 205 [2024-11-16 10:40:53,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:40:53,072 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 9 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:53,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 268 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 10:40:53,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-16 10:40:53,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-11-16 10:40:53,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.2892156862745099) internal successors, (263), 204 states have internal predecessors, (263), 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) [2024-11-16 10:40:53,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 263 transitions. [2024-11-16 10:40:53,076 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 263 transitions. Word has length 53 [2024-11-16 10:40:53,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:53,076 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 263 transitions. [2024-11-16 10:40:53,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-16 10:40:53,076 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 263 transitions. [2024-11-16 10:40:53,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-16 10:40:53,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:53,077 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:53,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 10:40:53,077 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:53,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:53,077 INFO L85 PathProgramCache]: Analyzing trace with hash -31220258, now seen corresponding path program 1 times [2024-11-16 10:40:53,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:53,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594726721] [2024-11-16 10:40:53,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:53,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:53,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:53,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:53,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594726721] [2024-11-16 10:40:53,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594726721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:53,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:53,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 10:40:53,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917291477] [2024-11-16 10:40:53,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:53,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 10:40:53,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:53,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 10:40:53,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 10:40:53,567 INFO L87 Difference]: Start difference. First operand 205 states and 263 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2024-11-16 10:40:53,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:53,856 INFO L93 Difference]: Finished difference Result 330 states and 424 transitions. [2024-11-16 10:40:53,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 10:40:53,857 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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 54 [2024-11-16 10:40:53,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:53,857 INFO L225 Difference]: With dead ends: 330 [2024-11-16 10:40:53,857 INFO L226 Difference]: Without dead ends: 215 [2024-11-16 10:40:53,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-16 10:40:53,858 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 153 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:53,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 305 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:40:53,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-16 10:40:53,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2024-11-16 10:40:53,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.2809523809523808) internal successors, (269), 210 states have internal predecessors, (269), 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) [2024-11-16 10:40:53,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 269 transitions. [2024-11-16 10:40:53,862 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 269 transitions. Word has length 54 [2024-11-16 10:40:53,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:53,862 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 269 transitions. [2024-11-16 10:40:53,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2024-11-16 10:40:53,862 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 269 transitions. [2024-11-16 10:40:53,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-16 10:40:53,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:53,862 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:53,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 10:40:53,863 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:53,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:53,863 INFO L85 PathProgramCache]: Analyzing trace with hash -433305656, now seen corresponding path program 1 times [2024-11-16 10:40:53,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:53,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091014659] [2024-11-16 10:40:53,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:53,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:54,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:54,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:54,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091014659] [2024-11-16 10:40:54,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091014659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:54,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:54,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 10:40:54,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072497344] [2024-11-16 10:40:54,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:54,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 10:40:54,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:54,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 10:40:54,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:40:54,018 INFO L87 Difference]: Start difference. First operand 211 states and 269 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2024-11-16 10:40:54,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:54,106 INFO L93 Difference]: Finished difference Result 337 states and 431 transitions. [2024-11-16 10:40:54,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 10:40:54,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2024-11-16 10:40:54,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:54,107 INFO L225 Difference]: With dead ends: 337 [2024-11-16 10:40:54,107 INFO L226 Difference]: Without dead ends: 219 [2024-11-16 10:40:54,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 10:40:54,108 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 15 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:54,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 430 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 10:40:54,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-16 10:40:54,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 211. [2024-11-16 10:40:54,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.2809523809523808) internal successors, (269), 210 states have internal predecessors, (269), 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) [2024-11-16 10:40:54,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 269 transitions. [2024-11-16 10:40:54,111 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 269 transitions. Word has length 54 [2024-11-16 10:40:54,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:54,111 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 269 transitions. [2024-11-16 10:40:54,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2024-11-16 10:40:54,112 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 269 transitions. [2024-11-16 10:40:54,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 10:40:54,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:54,112 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:54,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 10:40:54,112 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:54,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:54,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1897798331, now seen corresponding path program 1 times [2024-11-16 10:40:54,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:54,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494862718] [2024-11-16 10:40:54,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:54,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:54,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 10:40:54,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494862718] [2024-11-16 10:40:54,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494862718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:54,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:54,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 10:40:54,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617735664] [2024-11-16 10:40:54,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:54,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 10:40:54,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 10:40:54,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 10:40:54,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-16 10:40:54,420 INFO L87 Difference]: Start difference. First operand 211 states and 269 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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) [2024-11-16 10:40:54,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:40:54,609 INFO L93 Difference]: Finished difference Result 329 states and 419 transitions. [2024-11-16 10:40:54,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 10:40:54,609 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 55 [2024-11-16 10:40:54,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:40:54,610 INFO L225 Difference]: With dead ends: 329 [2024-11-16 10:40:54,610 INFO L226 Difference]: Without dead ends: 211 [2024-11-16 10:40:54,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-16 10:40:54,611 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 79 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:40:54,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 243 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:40:54,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-16 10:40:54,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 147. [2024-11-16 10:40:54,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 146 states have internal predecessors, (191), 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) [2024-11-16 10:40:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 191 transitions. [2024-11-16 10:40:54,614 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 191 transitions. Word has length 55 [2024-11-16 10:40:54,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:40:54,614 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 191 transitions. [2024-11-16 10:40:54,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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) [2024-11-16 10:40:54,614 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 191 transitions. [2024-11-16 10:40:54,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 10:40:54,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:54,614 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:54,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 10:40:54,615 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:54,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:54,615 INFO L85 PathProgramCache]: Analyzing trace with hash -789116735, now seen corresponding path program 1 times [2024-11-16 10:40:54,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 10:40:54,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912818933] [2024-11-16 10:40:54,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:54,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 10:40:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 10:40:54,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 10:40:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 10:40:54,691 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 10:40:54,692 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 10:40:54,692 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 10:40:54,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 10:40:54,696 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:40:54,743 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 10:40:54,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 10:40:54 BoogieIcfgContainer [2024-11-16 10:40:54,745 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 10:40:54,745 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 10:40:54,746 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 10:40:54,746 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 10:40:54,746 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:40:45" (3/4) ... [2024-11-16 10:40:54,748 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-16 10:40:54,749 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 10:40:54,750 INFO L158 Benchmark]: Toolchain (without parser) took 10407.05ms. Allocated memory was 142.6MB in the beginning and 432.0MB in the end (delta: 289.4MB). Free memory was 72.1MB in the beginning and 209.6MB in the end (delta: -137.4MB). Peak memory consumption was 153.6MB. Max. memory is 16.1GB. [2024-11-16 10:40:54,750 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 10:40:54,750 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.82ms. Allocated memory is still 142.6MB. Free memory was 71.9MB in the beginning and 54.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 10:40:54,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.90ms. Allocated memory was 142.6MB in the beginning and 186.6MB in the end (delta: 44.0MB). Free memory was 54.4MB in the beginning and 152.2MB in the end (delta: -97.8MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-11-16 10:40:54,751 INFO L158 Benchmark]: Boogie Preprocessor took 112.14ms. Allocated memory is still 186.6MB. Free memory was 152.2MB in the beginning and 146.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 10:40:54,751 INFO L158 Benchmark]: IcfgBuilder took 702.28ms. Allocated memory is still 186.6MB. Free memory was 146.9MB in the beginning and 94.5MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-11-16 10:40:54,754 INFO L158 Benchmark]: TraceAbstraction took 9190.68ms. Allocated memory was 186.6MB in the beginning and 432.0MB in the end (delta: 245.4MB). Free memory was 93.5MB in the beginning and 209.6MB in the end (delta: -116.1MB). Peak memory consumption was 130.3MB. Max. memory is 16.1GB. [2024-11-16 10:40:54,754 INFO L158 Benchmark]: Witness Printer took 3.90ms. Allocated memory is still 432.0MB. Free memory is still 209.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 10:40:54,755 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.82ms. Allocated memory is still 142.6MB. Free memory was 71.9MB in the beginning and 54.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.90ms. Allocated memory was 142.6MB in the beginning and 186.6MB in the end (delta: 44.0MB). Free memory was 54.4MB in the beginning and 152.2MB in the end (delta: -97.8MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 112.14ms. Allocated memory is still 186.6MB. Free memory was 152.2MB in the beginning and 146.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * IcfgBuilder took 702.28ms. Allocated memory is still 186.6MB. Free memory was 146.9MB in the beginning and 94.5MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 9190.68ms. Allocated memory was 186.6MB in the beginning and 432.0MB in the end (delta: 245.4MB). Free memory was 93.5MB in the beginning and 209.6MB in the end (delta: -116.1MB). Peak memory consumption was 130.3MB. Max. memory is 16.1GB. * Witness Printer took 3.90ms. Allocated memory is still 432.0MB. Free memory is still 209.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 123, overapproximation of bitwiseAnd at line 128. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 3); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (3 - 1); [L32] const SORT_27 mask_SORT_27 = (SORT_27)-1 >> (sizeof(SORT_27) * 8 - 2); [L33] const SORT_27 msb_SORT_27 = (SORT_27)1 << (2 - 1); [L35] const SORT_1 var_11 = 0; [L36] const SORT_5 var_15 = 0; [L37] const SORT_5 var_21 = 2; [L38] const SORT_5 var_24 = 1; [L39] const SORT_1 var_41 = 1; [L41] SORT_1 input_2; [L42] SORT_1 input_3; [L43] SORT_1 input_4; [L44] SORT_5 input_6; [L45] SORT_5 input_7; [L46] SORT_1 input_8; [L47] SORT_5 input_9; [L48] SORT_5 input_10; [L50] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, var_11=0, var_15=0, var_21=2, var_24=1, var_41=1] [L50] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L51] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, var_11=0, var_15=0, var_21=2, var_24=1, var_41=1] [L51] SORT_5 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L52] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, var_11=0, var_15=0, var_21=2, var_24=1, var_41=1] [L52] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L53] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, var_11=0, var_15=0, var_21=2, var_24=1, var_41=1] [L53] SORT_5 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L55] SORT_1 init_13_arg_1 = var_11; [L56] state_12 = init_13_arg_1 [L57] SORT_5 init_17_arg_1 = var_15; [L58] state_16 = init_17_arg_1 [L59] SORT_1 init_19_arg_1 = var_11; [L60] state_18 = init_19_arg_1 [L61] SORT_5 init_31_arg_1 = var_15; [L62] state_30 = init_31_arg_1 VAL [mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, state_16=0, state_18=0, state_30=0, var_11=0, var_15=0, var_21=2, var_24=1, var_41=1] [L65] input_2 = __VERIFIER_nondet_uchar() [L66] EXPR input_2 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, state_16=0, state_18=0, state_30=0, var_11=0, var_15=0, var_21=2, var_24=1, var_41=1] [L66] input_2 = input_2 & mask_SORT_1 [L67] input_3 = __VERIFIER_nondet_uchar() [L68] EXPR input_3 & mask_SORT_1 VAL [input_2=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, state_16=0, state_18=0, state_30=0, var_11=0, var_15=0, var_21=2, var_24=1, var_41=1] [L68] input_3 = input_3 & mask_SORT_1 [L69] input_4 = __VERIFIER_nondet_uchar() [L70] input_6 = __VERIFIER_nondet_uchar() [L71] input_7 = __VERIFIER_nondet_uchar() [L72] input_8 = __VERIFIER_nondet_uchar() [L73] input_9 = __VERIFIER_nondet_uchar() [L74] input_10 = __VERIFIER_nondet_uchar() [L77] SORT_1 var_14_arg_0 = state_12; [L78] SORT_1 var_14 = ~var_14_arg_0; [L79] SORT_1 var_20_arg_0 = state_18; [L80] SORT_5 var_20_arg_1 = state_16; [L81] SORT_5 var_20_arg_2 = input_7; [L82] SORT_5 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; VAL [input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, state_18=0, state_30=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=2, var_24=1, var_41=1] [L83] EXPR var_20 & mask_SORT_5 VAL [input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, state_18=0, state_30=0, var_11=0, var_14=-1, var_15=0, var_21=2, var_24=1, var_41=1] [L83] var_20 = var_20 & mask_SORT_5 [L84] SORT_5 var_25_arg_0 = var_20; [L85] SORT_5 var_25_arg_1 = var_24; [L86] SORT_1 var_25 = var_25_arg_0 == var_25_arg_1; [L87] SORT_1 var_26_arg_0 = var_25; [L88] SORT_1 var_26 = ~var_26_arg_0; [L89] SORT_5 var_22_arg_0 = var_20; [L90] SORT_5 var_22_arg_1 = var_21; [L91] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L92] SORT_1 var_23_arg_0 = var_22; [L93] SORT_1 var_23 = ~var_23_arg_0; VAL [input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, state_18=0, state_30=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=2, var_23=-1, var_24=1, var_26=-1, var_41=1] [L94] EXPR var_23 & mask_SORT_1 VAL [input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, state_18=0, state_30=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=2, var_24=1, var_26=-1, var_41=1] [L94] var_23 = var_23 & mask_SORT_1 [L95] SORT_1 var_28_arg_0 = var_26; [L96] SORT_1 var_28_arg_1 = var_23; VAL [input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, state_18=0, state_30=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=2, var_24=1, var_26=-1, var_28_arg_0=-1, var_28_arg_1=0, var_41=1] [L97] EXPR ((SORT_27)var_28_arg_0 << 1) | var_28_arg_1 VAL [input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, state_18=0, state_30=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=2, var_24=1, var_26=-1, var_41=1] [L97] SORT_27 var_28 = ((SORT_27)var_28_arg_0 << 1) | var_28_arg_1; [L98] EXPR var_28 & mask_SORT_27 VAL [input_2=0, input_3=0, input_7=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, state_18=0, state_30=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=2, var_24=1, var_26=-1, var_41=1] [L98] var_28 = var_28 & mask_SORT_27 [L99] SORT_27 var_29_arg_0 = var_28; [L100] SORT_1 var_29 = var_29_arg_0 == mask_SORT_27; [L101] SORT_1 var_32_arg_0 = state_18; [L102] SORT_5 var_32_arg_1 = state_30; [L103] SORT_5 var_32_arg_2 = input_7; [L104] SORT_5 var_32 = var_32_arg_0 ? var_32_arg_1 : var_32_arg_2; VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=2, var_24=1, var_26=-1, var_29=1, var_32=0, var_41=1] [L105] EXPR var_32 & mask_SORT_5 VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=2, var_24=1, var_26=-1, var_29=1, var_41=1] [L105] var_32 = var_32 & mask_SORT_5 [L106] SORT_5 var_33_arg_0 = var_32; [L107] SORT_5 var_33_arg_1 = var_21; [L108] SORT_1 var_33 = var_33_arg_0 == var_33_arg_1; [L109] SORT_1 var_34_arg_0 = var_33; [L110] SORT_1 var_34 = ~var_34_arg_0; VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=2, var_24=1, var_26=-1, var_29=1, var_32=0, var_34=-1, var_41=1] [L111] EXPR var_34 & mask_SORT_1 VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=2, var_24=1, var_26=-1, var_29=1, var_32=0, var_41=1] [L111] var_34 = var_34 & mask_SORT_1 [L112] SORT_1 var_35_arg_0 = var_26; [L113] SORT_1 var_35_arg_1 = var_34; VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=2, var_24=1, var_29=1, var_32=0, var_35_arg_0=-1, var_35_arg_1=0, var_41=1] [L114] EXPR ((SORT_27)var_35_arg_0 << 1) | var_35_arg_1 VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=2, var_24=1, var_29=1, var_32=0, var_41=1] [L114] SORT_27 var_35 = ((SORT_27)var_35_arg_0 << 1) | var_35_arg_1; [L115] EXPR var_35 & mask_SORT_27 VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, var_11=0, var_14=-1, var_15=0, var_20=0, var_21=2, var_24=1, var_29=1, var_32=0, var_41=1] [L115] var_35 = var_35 & mask_SORT_27 [L116] SORT_27 var_36_arg_0 = var_35; [L117] SORT_1 var_36 = var_36_arg_0 == mask_SORT_27; [L118] SORT_1 var_37_arg_0 = var_29; [L119] SORT_1 var_37_arg_1 = var_36; [L120] SORT_1 var_37 = var_37_arg_0 == var_37_arg_1; [L121] SORT_1 var_38_arg_0 = var_14; [L122] SORT_1 var_38_arg_1 = var_37; VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, var_11=0, var_15=0, var_20=0, var_21=2, var_24=1, var_32=0, var_38_arg_0=-1, var_38_arg_1=1, var_41=1] [L123] EXPR var_38_arg_0 | var_38_arg_1 VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, var_11=0, var_15=0, var_20=0, var_21=2, var_24=1, var_32=0, var_41=1] [L123] SORT_1 var_38 = var_38_arg_0 | var_38_arg_1; [L124] SORT_1 var_42_arg_0 = var_38; [L125] SORT_1 var_42 = ~var_42_arg_0; [L126] SORT_1 var_43_arg_0 = var_41; [L127] SORT_1 var_43_arg_1 = var_42; VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, var_11=0, var_15=0, var_20=0, var_21=2, var_24=1, var_32=0, var_41=1, var_43_arg_0=1, var_43_arg_1=-1] [L128] EXPR var_43_arg_0 & var_43_arg_1 VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, var_11=0, var_15=0, var_20=0, var_21=2, var_24=1, var_32=0, var_41=1] [L128] SORT_1 var_43 = var_43_arg_0 & var_43_arg_1; [L129] EXPR var_43 & mask_SORT_1 VAL [input_2=0, input_3=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, state_12=0, var_11=0, var_15=0, var_20=0, var_21=2, var_24=1, var_32=0, var_41=1] [L129] var_43 = var_43 & mask_SORT_1 [L130] SORT_1 bad_44_arg_0 = var_43; [L131] CALL __VERIFIER_assert(!(bad_44_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2198 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2198 mSDsluCounter, 6491 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4925 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4000 IncrementalHoareTripleChecker+Invalid, 4015 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 1566 mSDtfsCounter, 4000 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 188 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=237occurred in iteration=14, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 207 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 974 NumberOfCodeBlocks, 974 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 900 ConstructedInterpolants, 0 QuantifiedInterpolants, 4292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-16 10:40:54,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/hardware-verification-bv/btor2c-lazyMod.cal51.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 64bit --witnessprinter.graph.data.programhash 722f66c27e0daab44069acf5d7094f3a7f8b832453955e57154e2bc2fe9dd95b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 10:40:56,762 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 10:40:56,808 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-16 10:40:56,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 10:40:56,812 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 10:40:56,836 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 10:40:56,837 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 10:40:56,837 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 10:40:56,838 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 10:40:56,838 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 10:40:56,839 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 10:40:56,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 10:40:56,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 10:40:56,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 10:40:56,840 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 10:40:56,843 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 10:40:56,843 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 10:40:56,843 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 10:40:56,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 10:40:56,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 10:40:56,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 10:40:56,844 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-16 10:40:56,844 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-16 10:40:56,844 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 10:40:56,844 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-16 10:40:56,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 10:40:56,846 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 10:40:56,846 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 10:40:56,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 10:40:56,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 10:40:56,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 10:40:56,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:40:56,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 10:40:56,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 10:40:56,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 10:40:56,847 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-16 10:40:56,847 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-16 10:40:56,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 10:40:56,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 10:40:56,848 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 10:40:56,848 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 10:40:56,849 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 722f66c27e0daab44069acf5d7094f3a7f8b832453955e57154e2bc2fe9dd95b [2024-11-16 10:40:57,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 10:40:57,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 10:40:57,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 10:40:57,153 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 10:40:57,154 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 10:40:57,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c [2024-11-16 10:40:58,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 10:40:58,690 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 10:40:58,691 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c [2024-11-16 10:40:58,701 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e432ae81/bcfc9089da6046fd93e4622f1dfada99/FLAG4cde94f6a [2024-11-16 10:40:58,716 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e432ae81/bcfc9089da6046fd93e4622f1dfada99 [2024-11-16 10:40:58,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 10:40:58,719 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 10:40:58,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 10:40:58,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 10:40:58,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 10:40:58,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:40:58" (1/1) ... [2024-11-16 10:40:58,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72fde216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:58, skipping insertion in model container [2024-11-16 10:40:58,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:40:58" (1/1) ... [2024-11-16 10:40:58,753 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 10:40:58,905 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/hardware-verification-bv/btor2c-lazyMod.cal51.c[1245,1258] [2024-11-16 10:40:58,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:40:58,969 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 10:40:58,981 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/hardware-verification-bv/btor2c-lazyMod.cal51.c[1245,1258] [2024-11-16 10:40:59,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 10:40:59,041 INFO L204 MainTranslator]: Completed translation [2024-11-16 10:40:59,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59 WrapperNode [2024-11-16 10:40:59,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 10:40:59,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 10:40:59,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 10:40:59,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 10:40:59,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59" (1/1) ... [2024-11-16 10:40:59,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59" (1/1) ... [2024-11-16 10:40:59,090 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 209 [2024-11-16 10:40:59,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 10:40:59,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 10:40:59,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 10:40:59,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 10:40:59,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59" (1/1) ... [2024-11-16 10:40:59,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59" (1/1) ... [2024-11-16 10:40:59,109 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59" (1/1) ... [2024-11-16 10:40:59,124 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-16 10:40:59,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59" (1/1) ... [2024-11-16 10:40:59,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59" (1/1) ... [2024-11-16 10:40:59,129 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59" (1/1) ... [2024-11-16 10:40:59,130 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59" (1/1) ... [2024-11-16 10:40:59,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59" (1/1) ... [2024-11-16 10:40:59,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59" (1/1) ... [2024-11-16 10:40:59,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 10:40:59,135 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 10:40:59,135 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 10:40:59,135 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 10:40:59,135 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59" (1/1) ... [2024-11-16 10:40:59,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 10:40:59,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 10:40:59,171 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) [2024-11-16 10:40:59,179 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 [2024-11-16 10:40:59,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 10:40:59,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-16 10:40:59,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-16 10:40:59,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 10:40:59,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 10:40:59,311 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 10:40:59,312 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 10:40:59,569 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2024-11-16 10:40:59,569 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 10:40:59,577 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 10:40:59,580 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 10:40:59,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:40:59 BoogieIcfgContainer [2024-11-16 10:40:59,580 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 10:40:59,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 10:40:59,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 10:40:59,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 10:40:59,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:40:58" (1/3) ... [2024-11-16 10:40:59,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3788db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:40:59, skipping insertion in model container [2024-11-16 10:40:59,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:40:59" (2/3) ... [2024-11-16 10:40:59,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3788db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:40:59, skipping insertion in model container [2024-11-16 10:40:59,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:40:59" (3/3) ... [2024-11-16 10:40:59,586 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal51.c [2024-11-16 10:40:59,599 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 10:40:59,600 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 10:40:59,640 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 10:40:59,645 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;@4aeb0bdd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 10:40:59,645 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 10:40:59,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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) [2024-11-16 10:40:59,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-16 10:40:59,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:40:59,659 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-16 10:40:59,660 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:40:59,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:40:59,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1271070717, now seen corresponding path program 1 times [2024-11-16 10:40:59,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 10:40:59,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709361134] [2024-11-16 10:40:59,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:40:59,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 10:40:59,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 10:40:59,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-16 10:40:59,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-16 10:40:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:40:59,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 10:40:59,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 10:40:59,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:40:59,938 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 10:40:59,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 10:40:59,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709361134] [2024-11-16 10:40:59,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709361134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 10:40:59,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 10:40:59,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 10:40:59,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296500022] [2024-11-16 10:40:59,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 10:40:59,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 10:40:59,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 10:40:59,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 10:40:59,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 10:40:59,965 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-16 10:41:00,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:41:00,010 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2024-11-16 10:41:00,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 10:41:00,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2024-11-16 10:41:00,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:41:00,017 INFO L225 Difference]: With dead ends: 22 [2024-11-16 10:41:00,017 INFO L226 Difference]: Without dead ends: 11 [2024-11-16 10:41:00,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 10:41:00,023 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 10:41:00,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 10:41:00,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-16 10:41:00,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2024-11-16 10:41:00,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2024-11-16 10:41:00,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-16 10:41:00,047 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2024-11-16 10:41:00,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:41:00,047 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-11-16 10:41:00,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2024-11-16 10:41:00,048 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-16 10:41:00,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-16 10:41:00,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:41:00,049 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 10:41:00,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-16 10:41:00,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 10:41:00,252 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:41:00,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:41:00,253 INFO L85 PathProgramCache]: Analyzing trace with hash 2061110753, now seen corresponding path program 1 times [2024-11-16 10:41:00,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 10:41:00,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1295503724] [2024-11-16 10:41:00,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 10:41:00,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 10:41:00,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 10:41:00,261 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-16 10:41:00,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-16 10:41:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 10:41:00,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-16 10:41:00,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 10:41:00,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:41:00,766 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 10:41:04,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:41:04,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 10:41:04,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1295503724] [2024-11-16 10:41:04,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1295503724] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 10:41:04,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-16 10:41:04,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-16 10:41:04,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383871835] [2024-11-16 10:41:04,016 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-16 10:41:04,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 10:41:04,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 10:41:04,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 10:41:04,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 10:41:04,018 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2024-11-16 10:41:04,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:41:04,087 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2024-11-16 10:41:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 10:41:04,088 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 9 [2024-11-16 10:41:04,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:41:04,088 INFO L225 Difference]: With dead ends: 16 [2024-11-16 10:41:04,089 INFO L226 Difference]: Without dead ends: 13 [2024-11-16 10:41:04,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-16 10:41:04,090 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 10:41:04,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 10:41:04,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-16 10:41:04,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-16 10:41:04,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 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) [2024-11-16 10:41:04,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-16 10:41:04,092 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 9 [2024-11-16 10:41:04,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:41:04,093 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-16 10:41:04,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2024-11-16 10:41:04,093 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-16 10:41:04,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-16 10:41:04,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:41:04,094 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1] [2024-11-16 10:41:04,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-16 10:41:04,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 10:41:04,297 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:41:04,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:41:04,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1723041149, now seen corresponding path program 2 times [2024-11-16 10:41:04,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 10:41:04,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545823901] [2024-11-16 10:41:04,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 10:41:04,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 10:41:04,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 10:41:04,301 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-16 10:41:04,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-16 10:41:04,420 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 10:41:04,421 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 10:41:04,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-16 10:41:04,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 10:41:05,251 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:41:05,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 10:41:58,422 WARN L286 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 448 DAG size of output: 429 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-16 10:42:05,207 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 10:42:05,207 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 10:42:05,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545823901] [2024-11-16 10:42:05,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545823901] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 10:42:05,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-16 10:42:05,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-16 10:42:05,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799590914] [2024-11-16 10:42:05,209 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-16 10:42:05,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 10:42:05,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 10:42:05,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 10:42:05,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-16 10:42:05,210 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 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) [2024-11-16 10:42:05,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 10:42:05,440 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2024-11-16 10:42:05,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 10:42:05,441 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 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 12 [2024-11-16 10:42:05,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 10:42:05,442 INFO L225 Difference]: With dead ends: 19 [2024-11-16 10:42:05,442 INFO L226 Difference]: Without dead ends: 16 [2024-11-16 10:42:05,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-16 10:42:05,445 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 10:42:05,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 10:42:05,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-16 10:42:05,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-16 10:42:05,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 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) [2024-11-16 10:42:05,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-11-16 10:42:05,449 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2024-11-16 10:42:05,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 10:42:05,449 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-11-16 10:42:05,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 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) [2024-11-16 10:42:05,449 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-11-16 10:42:05,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-16 10:42:05,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 10:42:05,450 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2024-11-16 10:42:05,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-16 10:42:05,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 10:42:05,651 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 10:42:05,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 10:42:05,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1989777505, now seen corresponding path program 3 times [2024-11-16 10:42:05,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 10:42:05,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405418977] [2024-11-16 10:42:05,652 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 10:42:05,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-16 10:42:05,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 10:42:05,657 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-16 10:42:05,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-16 10:42:05,801 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-16 10:42:05,801 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 10:42:05,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-11-16 10:42:05,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 10:42:07,402 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 10:42:07,403 INFO L311 TraceCheckSpWp]: Computing backward predicates...