./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a96ac352045787eafd1dd759ea6f3eca6a30526272b8b586e505a22e035c217a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 15:37:28,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 15:37:28,148 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 15:37:28,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 15:37:28,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 15:37:28,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 15:37:28,177 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 15:37:28,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 15:37:28,179 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 15:37:28,181 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 15:37:28,181 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 15:37:28,181 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 15:37:28,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 15:37:28,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 15:37:28,182 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 15:37:28,184 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 15:37:28,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 15:37:28,184 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 15:37:28,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 15:37:28,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 15:37:28,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 15:37:28,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 15:37:28,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 15:37:28,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 15:37:28,186 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 15:37:28,186 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 15:37:28,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 15:37:28,187 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 15:37:28,187 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 15:37:28,187 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 15:37:28,188 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 15:37:28,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 15:37:28,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:37:28,189 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 15:37:28,189 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 15:37:28,189 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 15:37:28,189 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 15:37:28,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 15:37:28,190 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 15:37:28,190 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 15:37:28,190 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 15:37:28,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 15:37:28,191 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a96ac352045787eafd1dd759ea6f3eca6a30526272b8b586e505a22e035c217a [2024-11-16 15:37:28,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 15:37:28,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 15:37:28,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 15:37:28,409 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 15:37:28,410 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 15:37:28,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i [2024-11-16 15:37:29,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 15:37:29,869 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 15:37:29,871 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i [2024-11-16 15:37:29,879 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81033b3a3/983b59aa041345369dcc4dc772cbecde/FLAG3c8aa3eba [2024-11-16 15:37:29,892 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81033b3a3/983b59aa041345369dcc4dc772cbecde [2024-11-16 15:37:29,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 15:37:29,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 15:37:29,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 15:37:29,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 15:37:29,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 15:37:29,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:37:29" (1/1) ... [2024-11-16 15:37:29,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@201eadc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:29, skipping insertion in model container [2024-11-16 15:37:29,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:37:29" (1/1) ... [2024-11-16 15:37:29,925 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 15:37:30,140 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/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i[917,930] [2024-11-16 15:37:30,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:37:30,214 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 15:37:30,232 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/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-30.i[917,930] [2024-11-16 15:37:30,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:37:30,303 INFO L204 MainTranslator]: Completed translation [2024-11-16 15:37:30,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30 WrapperNode [2024-11-16 15:37:30,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 15:37:30,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 15:37:30,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 15:37:30,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 15:37:30,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30" (1/1) ... [2024-11-16 15:37:30,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30" (1/1) ... [2024-11-16 15:37:30,363 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 137 [2024-11-16 15:37:30,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 15:37:30,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 15:37:30,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 15:37:30,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 15:37:30,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30" (1/1) ... [2024-11-16 15:37:30,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30" (1/1) ... [2024-11-16 15:37:30,374 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30" (1/1) ... [2024-11-16 15:37:30,385 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 15:37:30,388 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30" (1/1) ... [2024-11-16 15:37:30,388 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30" (1/1) ... [2024-11-16 15:37:30,393 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30" (1/1) ... [2024-11-16 15:37:30,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30" (1/1) ... [2024-11-16 15:37:30,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30" (1/1) ... [2024-11-16 15:37:30,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30" (1/1) ... [2024-11-16 15:37:30,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 15:37:30,413 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 15:37:30,413 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 15:37:30,413 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 15:37:30,414 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30" (1/1) ... [2024-11-16 15:37:30,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:37:30,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 15:37:30,441 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 15:37:30,444 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 15:37:30,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 15:37:30,478 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 15:37:30,478 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 15:37:30,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 15:37:30,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 15:37:30,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 15:37:30,544 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 15:37:30,546 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 15:37:30,819 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L103: havoc property_#t~ite15#1;havoc property_#t~bitwise14#1;havoc property_#t~short16#1; [2024-11-16 15:37:30,837 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-16 15:37:30,838 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 15:37:30,851 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 15:37:30,852 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 15:37:30,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:37:30 BoogieIcfgContainer [2024-11-16 15:37:30,852 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 15:37:30,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 15:37:30,854 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 15:37:30,856 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 15:37:30,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:37:29" (1/3) ... [2024-11-16 15:37:30,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbc25db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:37:30, skipping insertion in model container [2024-11-16 15:37:30,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:37:30" (2/3) ... [2024-11-16 15:37:30,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbc25db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:37:30, skipping insertion in model container [2024-11-16 15:37:30,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:37:30" (3/3) ... [2024-11-16 15:37:30,858 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-30.i [2024-11-16 15:37:30,871 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 15:37:30,871 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 15:37:30,914 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 15:37:30,920 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;@34c958db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 15:37:30,920 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 15:37:30,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 49 states have internal predecessors, (64), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 15:37:30,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 15:37:30,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:37:30,932 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:37:30,933 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:37:30,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:37:30,937 INFO L85 PathProgramCache]: Analyzing trace with hash -264108319, now seen corresponding path program 1 times [2024-11-16 15:37:30,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:37:30,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388930907] [2024-11-16 15:37:30,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:37:30,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:37:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:37:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:37:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:37:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:37:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 15:37:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:37:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 15:37:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 15:37:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 15:37:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 15:37:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 15:37:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 15:37:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 15:37:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 15:37:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 15:37:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:37:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:37:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:31,227 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-16 15:37:31,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:37:31,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388930907] [2024-11-16 15:37:31,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388930907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:37:31,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:37:31,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 15:37:31,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50202811] [2024-11-16 15:37:31,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:37:31,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 15:37:31,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:37:31,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 15:37:31,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 15:37:31,255 INFO L87 Difference]: Start difference. First operand has 68 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 49 states have internal predecessors, (64), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 15:37:31,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:37:31,283 INFO L93 Difference]: Finished difference Result 128 states and 206 transitions. [2024-11-16 15:37:31,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 15:37:31,285 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 115 [2024-11-16 15:37:31,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:37:31,292 INFO L225 Difference]: With dead ends: 128 [2024-11-16 15:37:31,293 INFO L226 Difference]: Without dead ends: 63 [2024-11-16 15:37:31,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 15:37:31,300 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 15:37:31,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:37:31,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-16 15:37:31,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-16 15:37:31,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 44 states have internal predecessors, (56), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 15:37:31,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 90 transitions. [2024-11-16 15:37:31,342 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 90 transitions. Word has length 115 [2024-11-16 15:37:31,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:37:31,342 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 90 transitions. [2024-11-16 15:37:31,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 15:37:31,345 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 90 transitions. [2024-11-16 15:37:31,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 15:37:31,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:37:31,348 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:37:31,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 15:37:31,349 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:37:31,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:37:31,350 INFO L85 PathProgramCache]: Analyzing trace with hash 126302818, now seen corresponding path program 1 times [2024-11-16 15:37:31,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:37:31,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226185199] [2024-11-16 15:37:31,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:37:31,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:37:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:37:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:37:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:37:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:37:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 15:37:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:37:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 15:37:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 15:37:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 15:37:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 15:37:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 15:37:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 15:37:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 15:37:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 15:37:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 15:37:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:37:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:37:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:32,404 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-16 15:37:32,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:37:32,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226185199] [2024-11-16 15:37:32,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226185199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:37:32,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:37:32,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 15:37:32,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766808622] [2024-11-16 15:37:32,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:37:32,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 15:37:32,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:37:32,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 15:37:32,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 15:37:32,411 INFO L87 Difference]: Start difference. First operand 63 states and 90 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 15:37:32,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:37:32,644 INFO L93 Difference]: Finished difference Result 171 states and 238 transitions. [2024-11-16 15:37:32,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 15:37:32,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 115 [2024-11-16 15:37:32,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:37:32,646 INFO L225 Difference]: With dead ends: 171 [2024-11-16 15:37:32,646 INFO L226 Difference]: Without dead ends: 111 [2024-11-16 15:37:32,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-16 15:37:32,651 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 64 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 15:37:32,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 451 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 15:37:32,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-16 15:37:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 76. [2024-11-16 15:37:32,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.280701754385965) internal successors, (73), 57 states have internal predecessors, (73), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 15:37:32,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 107 transitions. [2024-11-16 15:37:32,666 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 107 transitions. Word has length 115 [2024-11-16 15:37:32,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:37:32,667 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 107 transitions. [2024-11-16 15:37:32,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 15:37:32,667 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 107 transitions. [2024-11-16 15:37:32,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 15:37:32,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:37:32,669 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:37:32,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 15:37:32,669 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:37:32,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:37:32,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1646954500, now seen corresponding path program 1 times [2024-11-16 15:37:32,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:37:32,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787825921] [2024-11-16 15:37:32,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:37:32,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:37:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:37:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:37:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:37:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:37:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 15:37:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:37:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 15:37:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 15:37:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 15:37:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 15:37:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 15:37:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 15:37:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 15:37:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 15:37:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 15:37:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:37:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:37:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:37:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-16 15:37:33,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:37:33,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787825921] [2024-11-16 15:37:33,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787825921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:37:33,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:37:33,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 15:37:33,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956231337] [2024-11-16 15:37:33,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:37:33,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 15:37:33,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:37:33,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 15:37:33,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-16 15:37:33,222 INFO L87 Difference]: Start difference. First operand 76 states and 107 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 15:37:33,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:37:33,433 INFO L93 Difference]: Finished difference Result 184 states and 252 transitions. [2024-11-16 15:37:33,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 15:37:33,434 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 116 [2024-11-16 15:37:33,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:37:33,435 INFO L225 Difference]: With dead ends: 184 [2024-11-16 15:37:33,435 INFO L226 Difference]: Without dead ends: 111 [2024-11-16 15:37:33,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-16 15:37:33,436 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 70 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 15:37:33,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 420 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 15:37:33,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-16 15:37:33,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 85. [2024-11-16 15:37:33,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 66 states have internal predecessors, (85), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 15:37:33,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 119 transitions. [2024-11-16 15:37:33,448 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 119 transitions. Word has length 116 [2024-11-16 15:37:33,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:37:33,448 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 119 transitions. [2024-11-16 15:37:33,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 15:37:33,448 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 119 transitions. [2024-11-16 15:37:33,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 15:37:33,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:37:33,452 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:37:33,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 15:37:33,452 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:37:33,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:37:33,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1742301507, now seen corresponding path program 1 times [2024-11-16 15:37:33,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:37:33,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843388091] [2024-11-16 15:37:33,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:37:33,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:37:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat