./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-15.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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_no-floats_file-15.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 4b01fbd155c23efe3aacc2859ba2e72ec35bc54609af42a0cd81c3883d9fe03f --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 23:06:44,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:06:44,251 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 23:06:44,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:06:44,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 23:06:44,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:06:44,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 23:06:44,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 23:06:44,306 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 23:06:44,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 23:06:44,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:06:44,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 23:06:44,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:06:44,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:06:44,313 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 23:06:44,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:06:44,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:06:44,313 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:06:44,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:06:44,314 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:06:44,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:06:44,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:06:44,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:06:44,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:06:44,316 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:06:44,316 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:06:44,316 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:06:44,317 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:06:44,317 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:06:44,317 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 23:06:44,317 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 23:06:44,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 23:06:44,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:06:44,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:06:44,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:06:44,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:06:44,320 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 23:06:44,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:06:44,320 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 23:06:44,320 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 23:06:44,321 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 23:06:44,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 23:06:44,321 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b01fbd155c23efe3aacc2859ba2e72ec35bc54609af42a0cd81c3883d9fe03f [2024-11-08 23:06:44,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:06:44,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:06:44,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:06:44,595 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:06:44,596 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:06:44,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-15.i [2024-11-08 23:06:45,989 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:06:46,165 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:06:46,166 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-15.i [2024-11-08 23:06:46,177 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26f7e004b/b43d51b8773b4a9ba980a0288049525a/FLAG397ad7fd7 [2024-11-08 23:06:46,189 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26f7e004b/b43d51b8773b4a9ba980a0288049525a [2024-11-08 23:06:46,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:06:46,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:06:46,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:06:46,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:06:46,198 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:06:46,199 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482beef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46, skipping insertion in model container [2024-11-08 23:06:46,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,229 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:06:46,406 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_no-floats_file-15.i[916,929] [2024-11-08 23:06:46,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:06:46,473 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:06:46,489 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_no-floats_file-15.i[916,929] [2024-11-08 23:06:46,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:06:46,536 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:06:46,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46 WrapperNode [2024-11-08 23:06:46,537 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:06:46,538 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:06:46,538 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:06:46,539 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:06:46,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,552 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,574 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2024-11-08 23:06:46,575 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:06:46,576 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:06:46,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:06:46,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:06:46,588 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,590 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,605 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]. [2024-11-08 23:06:46,605 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,605 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:06:46,619 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:06:46,619 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:06:46,619 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:06:46,620 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46" (1/1) ... [2024-11-08 23:06:46,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:06:46,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:06:46,661 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) [2024-11-08 23:06:46,663 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 [2024-11-08 23:06:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:06:46,704 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 23:06:46,705 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 23:06:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 23:06:46,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:06:46,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:06:46,766 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:06:46,771 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:06:47,047 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-08 23:06:47,047 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:06:47,063 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:06:47,063 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:06:47,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:06:47 BoogieIcfgContainer [2024-11-08 23:06:47,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:06:47,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 23:06:47,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 23:06:47,069 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 23:06:47,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:06:46" (1/3) ... [2024-11-08 23:06:47,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c07e776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:06:47, skipping insertion in model container [2024-11-08 23:06:47,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:06:46" (2/3) ... [2024-11-08 23:06:47,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c07e776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:06:47, skipping insertion in model container [2024-11-08 23:06:47,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:06:47" (3/3) ... [2024-11-08 23:06:47,073 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-15.i [2024-11-08 23:06:47,091 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 23:06:47,092 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 23:06:47,166 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 23:06:47,175 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;@3284c6ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 23:06:47,176 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 23:06:47,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 23:06:47,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 23:06:47,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:06:47,199 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:06:47,199 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:06:47,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:06:47,206 INFO L85 PathProgramCache]: Analyzing trace with hash 100213415, now seen corresponding path program 1 times [2024-11-08 23:06:47,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:06:47,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957799367] [2024-11-08 23:06:47,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:06:47,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:06:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:06:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:06:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:06:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:06:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:06:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:06:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:06:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:06:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:06:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:06:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:06:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:06:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:06:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:06:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:06:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:06:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:47,621 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 23:06:47,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:06:47,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957799367] [2024-11-08 23:06:47,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957799367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:06:47,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:06:47,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 23:06:47,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615939758] [2024-11-08 23:06:47,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:06:47,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 23:06:47,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:06:47,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 23:06:47,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:06:47,660 INFO L87 Difference]: Start difference. First operand has 50 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 23:06:47,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:06:47,690 INFO L93 Difference]: Finished difference Result 93 states and 158 transitions. [2024-11-08 23:06:47,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 23:06:47,693 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2024-11-08 23:06:47,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:06:47,701 INFO L225 Difference]: With dead ends: 93 [2024-11-08 23:06:47,702 INFO L226 Difference]: Without dead ends: 46 [2024-11-08 23:06:47,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:06:47,709 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 23:06:47,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 23:06:47,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-08 23:06:47,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-08 23:06:47,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 23:06:47,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 66 transitions. [2024-11-08 23:06:47,752 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 66 transitions. Word has length 102 [2024-11-08 23:06:47,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:06:47,753 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 66 transitions. [2024-11-08 23:06:47,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 23:06:47,753 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2024-11-08 23:06:47,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 23:06:47,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:06:47,756 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:06:47,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 23:06:47,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:06:47,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:06:47,758 INFO L85 PathProgramCache]: Analyzing trace with hash -972029273, now seen corresponding path program 1 times [2024-11-08 23:06:47,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:06:47,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930837949] [2024-11-08 23:06:47,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:06:47,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:06:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:06:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:06:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:06:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:06:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:06:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:06:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:06:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:06:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:06:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:06:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:06:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:06:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:06:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:06:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:06:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:06:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 23:06:48,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:06:48,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930837949] [2024-11-08 23:06:48,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930837949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:06:48,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:06:48,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 23:06:48,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227430147] [2024-11-08 23:06:48,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:06:48,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 23:06:48,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:06:48,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 23:06:48,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 23:06:48,284 INFO L87 Difference]: Start difference. First operand 46 states and 66 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 23:06:48,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:06:48,350 INFO L93 Difference]: Finished difference Result 103 states and 147 transitions. [2024-11-08 23:06:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 23:06:48,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 102 [2024-11-08 23:06:48,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:06:48,353 INFO L225 Difference]: With dead ends: 103 [2024-11-08 23:06:48,353 INFO L226 Difference]: Without dead ends: 60 [2024-11-08 23:06:48,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 23:06:48,356 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 15 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 23:06:48,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 184 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 23:06:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-08 23:06:48,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 49. [2024-11-08 23:06:48,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 23:06:48,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2024-11-08 23:06:48,375 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 69 transitions. Word has length 102 [2024-11-08 23:06:48,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:06:48,376 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 69 transitions. [2024-11-08 23:06:48,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 23:06:48,378 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions. [2024-11-08 23:06:48,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 23:06:48,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:06:48,380 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:06:48,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 23:06:48,381 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:06:48,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:06:48,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1101317529, now seen corresponding path program 1 times [2024-11-08 23:06:48,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:06:48,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040785279] [2024-11-08 23:06:48,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:06:48,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:06:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:06:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:06:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:06:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:06:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:06:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:06:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:06:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:06:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:06:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:06:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:06:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:06:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:06:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:06:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:06:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:06:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:06:48,604 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 23:06:48,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:06:48,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040785279] [2024-11-08 23:06:48,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040785279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:06:48,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:06:48,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 23:06:48,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458149979] [2024-11-08 23:06:48,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:06:48,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 23:06:48,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:06:48,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 23:06:48,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 23:06:48,607 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 23:06:48,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:06:48,636 INFO L93 Difference]: Finished difference Result 139 states and 199 transitions. [2024-11-08 23:06:48,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 23:06:48,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 102 [2024-11-08 23:06:48,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:06:48,639 INFO L225 Difference]: With dead ends: 139 [2024-11-08 23:06:48,639 INFO L226 Difference]: Without dead ends: 93 [2024-11-08 23:06:48,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 23:06:48,642 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 32 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 23:06:48,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 132 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 23:06:48,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-08 23:06:48,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2024-11-08 23:06:48,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 55 states have (on average 1.2) internal successors, (66), 55 states have internal predecessors, (66), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 23:06:48,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 130 transitions. [2024-11-08 23:06:48,668 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 130 transitions. Word has length 102 [2024-11-08 23:06:48,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:06:48,669 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 130 transitions. [2024-11-08 23:06:48,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 23:06:48,670 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 130 transitions. [2024-11-08 23:06:48,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 23:06:48,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:06:48,671 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:06:48,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 23:06:48,672 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:06:48,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:06:48,672 INFO L85 PathProgramCache]: Analyzing trace with hash 187553380, now seen corresponding path program 1 times [2024-11-08 23:06:48,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:06:48,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533028187] [2024-11-08 23:06:48,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:06:48,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:06:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat