./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-69.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-69.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 02014c06e88143798a3a2d9c98858036968b90a60993f5da2f4b3f104386f181 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 06:05:24,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 06:05:24,162 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 06:05:24,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 06:05:24,168 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 06:05:24,191 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 06:05:24,194 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 06:05:24,194 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 06:05:24,195 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 06:05:24,196 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 06:05:24,197 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 06:05:24,197 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 06:05:24,198 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 06:05:24,198 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 06:05:24,199 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 06:05:24,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 06:05:24,200 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 06:05:24,200 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 06:05:24,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 06:05:24,201 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 06:05:24,201 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 06:05:24,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 06:05:24,205 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 06:05:24,205 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 06:05:24,205 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 06:05:24,206 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 06:05:24,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 06:05:24,206 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 06:05:24,206 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 06:05:24,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 06:05:24,207 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 06:05:24,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 06:05:24,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:05:24,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 06:05:24,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 06:05:24,212 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 06:05:24,213 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 06:05:24,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 06:05:24,214 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 06:05:24,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 06:05:24,214 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 06:05:24,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 06:05:24,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02014c06e88143798a3a2d9c98858036968b90a60993f5da2f4b3f104386f181 [2024-11-20 06:05:24,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 06:05:24,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 06:05:24,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 06:05:24,505 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 06:05:24,505 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 06:05:24,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-69.i [2024-11-20 06:05:26,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 06:05:26,251 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 06:05:26,252 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-69.i [2024-11-20 06:05:26,260 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11c62a725/e93b9ae5f7af40498243793452976b70/FLAG8934458ab [2024-11-20 06:05:26,279 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11c62a725/e93b9ae5f7af40498243793452976b70 [2024-11-20 06:05:26,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 06:05:26,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 06:05:26,286 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 06:05:26,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 06:05:26,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 06:05:26,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,295 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2db6fdb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26, skipping insertion in model container [2024-11-20 06:05:26,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,328 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 06:05:26,516 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-69.i[916,929] [2024-11-20 06:05:26,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:05:26,583 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 06:05:26,594 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-69.i[916,929] [2024-11-20 06:05:26,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:05:26,636 INFO L204 MainTranslator]: Completed translation [2024-11-20 06:05:26,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26 WrapperNode [2024-11-20 06:05:26,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 06:05:26,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 06:05:26,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 06:05:26,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 06:05:26,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,679 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2024-11-20 06:05:26,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 06:05:26,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 06:05:26,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 06:05:26,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 06:05:26,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,715 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]. [2024-11-20 06:05:26,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,720 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,728 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 06:05:26,729 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 06:05:26,729 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 06:05:26,729 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 06:05:26,730 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26" (1/1) ... [2024-11-20 06:05:26,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:05:26,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:05:26,772 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) [2024-11-20 06:05:26,777 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 [2024-11-20 06:05:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 06:05:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 06:05:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 06:05:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 06:05:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 06:05:26,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 06:05:26,897 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 06:05:26,901 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 06:05:27,228 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-20 06:05:27,229 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 06:05:27,246 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 06:05:27,248 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 06:05:27,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:05:27 BoogieIcfgContainer [2024-11-20 06:05:27,248 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 06:05:27,251 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 06:05:27,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 06:05:27,256 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 06:05:27,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:05:26" (1/3) ... [2024-11-20 06:05:27,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ef8d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:05:27, skipping insertion in model container [2024-11-20 06:05:27,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:26" (2/3) ... [2024-11-20 06:05:27,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ef8d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:05:27, skipping insertion in model container [2024-11-20 06:05:27,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:05:27" (3/3) ... [2024-11-20 06:05:27,261 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-69.i [2024-11-20 06:05:27,283 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 06:05:27,283 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 06:05:27,363 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 06:05:27,370 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;@2fe93305, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 06:05:27,370 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 06:05:27,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 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) [2024-11-20 06:05:27,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-20 06:05:27,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:05:27,389 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] [2024-11-20 06:05:27,390 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:05:27,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:05:27,395 INFO L85 PathProgramCache]: Analyzing trace with hash 494546619, now seen corresponding path program 1 times [2024-11-20 06:05:27,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:05:27,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524730161] [2024-11-20 06:05:27,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:05:27,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:05:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:05:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:05:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:05:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:05:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:05:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:05:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:05:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:05:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:05:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:05:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:05:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:05:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:05:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:05:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:05:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:05:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 06:05:27,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:05:27,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524730161] [2024-11-20 06:05:27,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524730161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:05:27,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:05:27,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 06:05:27,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209089154] [2024-11-20 06:05:27,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:05:27,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 06:05:27,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:05:27,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 06:05:27,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 06:05:27,800 INFO L87 Difference]: Start difference. First operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 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) [2024-11-20 06:05:27,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:05:27,833 INFO L93 Difference]: Finished difference Result 99 states and 168 transitions. [2024-11-20 06:05:27,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 06:05:27,837 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 [2024-11-20 06:05:27,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:05:27,846 INFO L225 Difference]: With dead ends: 99 [2024-11-20 06:05:27,847 INFO L226 Difference]: Without dead ends: 49 [2024-11-20 06:05:27,850 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 [2024-11-20 06:05:27,853 INFO L432 NwaCegarLoop]: 72 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, 72 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 [2024-11-20 06:05:27,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 06:05:27,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-20 06:05:27,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-20 06:05:27,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 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) [2024-11-20 06:05:27,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2024-11-20 06:05:27,897 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 102 [2024-11-20 06:05:27,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:05:27,898 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2024-11-20 06:05:27,898 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) [2024-11-20 06:05:27,899 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2024-11-20 06:05:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-20 06:05:27,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:05:27,903 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] [2024-11-20 06:05:27,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 06:05:27,903 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:05:27,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:05:27,904 INFO L85 PathProgramCache]: Analyzing trace with hash -577696069, now seen corresponding path program 1 times [2024-11-20 06:05:27,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:05:27,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730880440] [2024-11-20 06:05:27,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:05:27,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:05:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:03,733 WARN L286 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-20 06:06:31,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:06:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:06:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:06:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:06:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:06:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:06:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:06:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:06:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:06:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:06:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:06:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:06:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:06:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:06:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:06:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:06:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:31,666 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 06:06:31,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:06:31,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730880440] [2024-11-20 06:06:31,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730880440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:06:31,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:06:31,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 06:06:31,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227693081] [2024-11-20 06:06:31,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:06:31,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 06:06:31,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:06:31,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 06:06:31,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 06:06:31,674 INFO L87 Difference]: Start difference. First operand 49 states and 72 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 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) [2024-11-20 06:06:36,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:06:36,080 INFO L93 Difference]: Finished difference Result 66 states and 94 transitions. [2024-11-20 06:06:36,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 06:06:36,081 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 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 [2024-11-20 06:06:36,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:06:36,082 INFO L225 Difference]: With dead ends: 66 [2024-11-20 06:06:36,082 INFO L226 Difference]: Without dead ends: 64 [2024-11-20 06:06:36,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-20 06:06:36,084 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 28 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 06:06:36,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 222 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 06:06:36,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-20 06:06:36,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2024-11-20 06:06:36,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 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) [2024-11-20 06:06:36,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions. [2024-11-20 06:06:36,094 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 102 [2024-11-20 06:06:36,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:06:36,096 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions. [2024-11-20 06:06:36,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 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) [2024-11-20 06:06:36,096 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2024-11-20 06:06:36,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-20 06:06:36,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:06:36,099 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] [2024-11-20 06:06:36,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 06:06:36,099 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:06:36,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:06:36,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1877521400, now seen corresponding path program 1 times [2024-11-20 06:06:36,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:06:36,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940728760] [2024-11-20 06:06:36,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:06:36,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:06:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:06:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:06:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:06:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:06:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:06:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:06:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:06:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:06:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:06:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:06:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:06:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:06:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:06:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:06:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 06:06:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 06:06:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:06:41,503 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-20 06:06:41,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:06:41,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940728760] [2024-11-20 06:06:41,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940728760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:06:41,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:06:41,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 06:06:41,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280321622] [2024-11-20 06:06:41,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:06:41,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 06:06:41,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:06:41,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 06:06:41,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 06:06:41,508 INFO L87 Difference]: Start difference. First operand 58 states and 85 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2024-11-20 06:06:42,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:06:42,091 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2024-11-20 06:06:42,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 06:06:42,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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 103 [2024-11-20 06:06:42,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:06:42,093 INFO L225 Difference]: With dead ends: 74 [2024-11-20 06:06:42,093 INFO L226 Difference]: Without dead ends: 72 [2024-11-20 06:06:42,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-20 06:06:42,095 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 20 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 06:06:42,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 308 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 06:06:42,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-20 06:06:42,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 59. [2024-11-20 06:06:42,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 41 states have internal predecessors, (55), 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) [2024-11-20 06:06:42,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 87 transitions. [2024-11-20 06:06:42,103 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 87 transitions. Word has length 103 [2024-11-20 06:06:42,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:06:42,104 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 87 transitions. [2024-11-20 06:06:42,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2024-11-20 06:06:42,104 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 87 transitions. [2024-11-20 06:06:42,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-20 06:06:42,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:06:42,106 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, 1] [2024-11-20 06:06:42,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 06:06:42,106 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:06:42,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:06:42,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1571392194, now seen corresponding path program 1 times [2024-11-20 06:06:42,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:06:42,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610352458] [2024-11-20 06:06:42,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:06:42,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:06:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat