./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-54.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-54.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 7721a739ef5faac033f6706f03843ab5e371f7e9c8f0302a327b5f890c5cbaa4 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 23:11:00,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:11:00,503 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 23:11:00,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:11:00,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 23:11:00,541 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:11:00,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 23:11:00,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 23:11:00,545 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 23:11:00,545 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 23:11:00,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:11:00,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 23:11:00,547 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:11:00,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:11:00,549 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 23:11:00,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:11:00,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:11:00,550 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:11:00,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:11:00,551 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:11:00,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:11:00,554 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:11:00,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:11:00,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:11:00,556 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:11:00,557 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:11:00,557 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:11:00,557 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:11:00,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:11:00,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 23:11:00,558 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 23:11:00,558 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 23:11:00,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:11:00,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:11:00,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:11:00,559 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:11:00,560 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 23:11:00,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:11:00,560 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 23:11:00,560 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 23:11:00,560 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 23:11:00,561 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 23:11:00,561 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7721a739ef5faac033f6706f03843ab5e371f7e9c8f0302a327b5f890c5cbaa4 [2024-11-08 23:11:00,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:11:00,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:11:00,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:11:00,827 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:11:00,827 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:11:00,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-54.i [2024-11-08 23:11:02,266 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:11:02,454 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:11:02,455 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-54.i [2024-11-08 23:11:02,462 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec948164f/d03be9a59048420db6765a635def3a04/FLAG6ceb2ce53 [2024-11-08 23:11:02,832 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec948164f/d03be9a59048420db6765a635def3a04 [2024-11-08 23:11:02,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:11:02,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:11:02,837 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:11:02,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:11:02,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:11:02,843 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:11:02" (1/1) ... [2024-11-08 23:11:02,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49070e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:02, skipping insertion in model container [2024-11-08 23:11:02,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:11:02" (1/1) ... [2024-11-08 23:11:02,872 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:11:03,049 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-54.i[916,929] [2024-11-08 23:11:03,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:11:03,131 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:11:03,143 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-54.i[916,929] [2024-11-08 23:11:03,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:11:03,193 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:11:03,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03 WrapperNode [2024-11-08 23:11:03,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:11:03,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:11:03,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:11:03,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:11:03,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03" (1/1) ... [2024-11-08 23:11:03,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03" (1/1) ... [2024-11-08 23:11:03,257 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2024-11-08 23:11:03,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:11:03,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:11:03,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:11:03,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:11:03,270 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03" (1/1) ... [2024-11-08 23:11:03,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03" (1/1) ... [2024-11-08 23:11:03,272 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03" (1/1) ... [2024-11-08 23:11:03,291 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 23:11:03,291 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03" (1/1) ... [2024-11-08 23:11:03,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03" (1/1) ... [2024-11-08 23:11:03,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03" (1/1) ... [2024-11-08 23:11:03,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03" (1/1) ... [2024-11-08 23:11:03,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03" (1/1) ... [2024-11-08 23:11:03,305 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03" (1/1) ... [2024-11-08 23:11:03,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:11:03,312 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:11:03,313 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:11:03,313 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:11:03,314 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03" (1/1) ... [2024-11-08 23:11:03,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:11:03,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:11:03,350 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 23:11:03,355 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 23:11:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:11:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 23:11:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 23:11:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 23:11:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:11:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:11:03,483 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:11:03,486 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:11:03,766 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-08 23:11:03,767 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:11:03,785 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:11:03,787 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:11:03,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:11:03 BoogieIcfgContainer [2024-11-08 23:11:03,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:11:03,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 23:11:03,789 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 23:11:03,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 23:11:03,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:11:02" (1/3) ... [2024-11-08 23:11:03,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d33024b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:11:03, skipping insertion in model container [2024-11-08 23:11:03,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:11:03" (2/3) ... [2024-11-08 23:11:03,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d33024b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:11:03, skipping insertion in model container [2024-11-08 23:11:03,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:11:03" (3/3) ... [2024-11-08 23:11:03,796 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-54.i [2024-11-08 23:11:03,813 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 23:11:03,813 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 23:11:03,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 23:11:03,895 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;@7aeaa853, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 23:11:03,896 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 23:11:03,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-08 23:11:03,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 23:11:03,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:11:03,912 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:03,913 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:11:03,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:11:03,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1005897847, now seen corresponding path program 1 times [2024-11-08 23:11:03,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:11:03,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809419810] [2024-11-08 23:11:03,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:11:03,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:11:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:11:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:11:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:11:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:11:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:11:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:11:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:11:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:11:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:11:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:11:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:11:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:11:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:11:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:11:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:04,247 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-08 23:11:04,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:11:04,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809419810] [2024-11-08 23:11:04,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809419810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:11:04,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:11:04,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 23:11:04,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059554973] [2024-11-08 23:11:04,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:11:04,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 23:11:04,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:11:04,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 23:11:04,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:11:04,284 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-08 23:11:04,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:11:04,313 INFO L93 Difference]: Finished difference Result 91 states and 152 transitions. [2024-11-08 23:11:04,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 23:11:04,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 91 [2024-11-08 23:11:04,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:11:04,325 INFO L225 Difference]: With dead ends: 91 [2024-11-08 23:11:04,325 INFO L226 Difference]: Without dead ends: 45 [2024-11-08 23:11:04,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 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 23:11:04,332 INFO L432 NwaCegarLoop]: 65 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, 65 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 23:11:04,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 23:11:04,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-08 23:11:04,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-08 23:11:04,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-08 23:11:04,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2024-11-08 23:11:04,426 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 91 [2024-11-08 23:11:04,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:11:04,427 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2024-11-08 23:11:04,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-08 23:11:04,427 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2024-11-08 23:11:04,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 23:11:04,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:11:04,431 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:04,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 23:11:04,431 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:11:04,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:11:04,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1000174007, now seen corresponding path program 1 times [2024-11-08 23:11:04,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:11:04,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206704339] [2024-11-08 23:11:04,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:11:04,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:11:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:11:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:11:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:11:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:11:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:11:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:11:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:11:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:11:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:11:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:11:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:11:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:11:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:11:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:11:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-08 23:11:07,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:11:07,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206704339] [2024-11-08 23:11:07,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206704339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:11:07,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:11:07,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 23:11:07,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989908435] [2024-11-08 23:11:07,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:11:07,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 23:11:07,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:11:07,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 23:11:07,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-08 23:11:07,272 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-08 23:11:07,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:11:07,581 INFO L93 Difference]: Finished difference Result 110 states and 157 transitions. [2024-11-08 23:11:07,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 23:11:07,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2024-11-08 23:11:07,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:11:07,583 INFO L225 Difference]: With dead ends: 110 [2024-11-08 23:11:07,584 INFO L226 Difference]: Without dead ends: 68 [2024-11-08 23:11:07,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-08 23:11:07,585 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 21 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 23:11:07,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 358 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 23:11:07,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-08 23:11:07,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 53. [2024-11-08 23:11:07,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 37 states have internal predecessors, (46), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-08 23:11:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2024-11-08 23:11:07,604 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 91 [2024-11-08 23:11:07,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:11:07,607 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2024-11-08 23:11:07,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-08 23:11:07,608 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2024-11-08 23:11:07,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 23:11:07,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:11:07,612 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:07,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 23:11:07,613 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:11:07,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:11:07,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1680232377, now seen corresponding path program 1 times [2024-11-08 23:11:07,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:11:07,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893119747] [2024-11-08 23:11:07,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:11:07,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:11:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:11:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:11:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:11:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:11:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:11:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:11:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:11:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:11:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:11:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:11:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:11:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:11:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:11:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:11:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,215 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-08 23:11:09,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:11:09,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893119747] [2024-11-08 23:11:09,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893119747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:11:09,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:11:09,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 23:11:09,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674593386] [2024-11-08 23:11:09,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:11:09,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 23:11:09,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:11:09,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 23:11:09,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 23:11:09,219 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-08 23:11:09,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:11:09,400 INFO L93 Difference]: Finished difference Result 113 states and 157 transitions. [2024-11-08 23:11:09,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 23:11:09,402 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2024-11-08 23:11:09,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:11:09,404 INFO L225 Difference]: With dead ends: 113 [2024-11-08 23:11:09,404 INFO L226 Difference]: Without dead ends: 63 [2024-11-08 23:11:09,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-08 23:11:09,406 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 53 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 23:11:09,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 232 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 23:11:09,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-08 23:11:09,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 53. [2024-11-08 23:11:09,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 37 states have internal predecessors, (46), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-08 23:11:09,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2024-11-08 23:11:09,422 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 91 [2024-11-08 23:11:09,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:11:09,423 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2024-11-08 23:11:09,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-08 23:11:09,424 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2024-11-08 23:11:09,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 23:11:09,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:11:09,428 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:09,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 23:11:09,429 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:11:09,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:11:09,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1533807088, now seen corresponding path program 1 times [2024-11-08 23:11:09,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:11:09,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743331715] [2024-11-08 23:11:09,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:11:09,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:11:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:11:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:11:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:11:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:11:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:11:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:11:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:11:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:11:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:11:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:11:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:11:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:11:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:11:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:11:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-08 23:11:09,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:11:09,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743331715] [2024-11-08 23:11:09,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743331715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 23:11:09,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794014321] [2024-11-08 23:11:09,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:11:09,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 23:11:09,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:11:09,641 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 23:11:09,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 23:11:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:11:09,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 23:11:09,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:11:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-08 23:11:09,918 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 23:11:10,117 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-08 23:11:10,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794014321] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 23:11:10,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 23:11:10,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-08 23:11:10,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856340828] [2024-11-08 23:11:10,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 23:11:10,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 23:11:10,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:11:10,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 23:11:10,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 23:11:10,120 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-08 23:11:10,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:11:10,236 INFO L93 Difference]: Finished difference Result 99 states and 135 transitions. [2024-11-08 23:11:10,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 23:11:10,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 92 [2024-11-08 23:11:10,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:11:10,242 INFO L225 Difference]: With dead ends: 99 [2024-11-08 23:11:10,242 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 23:11:10,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-08 23:11:10,247 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 32 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 23:11:10,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 78 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 23:11:10,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 23:11:10,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 23:11:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 23:11:10,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 23:11:10,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2024-11-08 23:11:10,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:11:10,249 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 23:11:10,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-08 23:11:10,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 23:11:10,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 23:11:10,255 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 23:11:10,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 23:11:10,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 23:11:10,460 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-08 23:11:10,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 23:11:10,521 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 23:11:10,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 11:11:10 BoogieIcfgContainer [2024-11-08 23:11:10,543 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 23:11:10,544 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:11:10,544 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:11:10,544 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:11:10,545 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:11:03" (3/4) ... [2024-11-08 23:11:10,547 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 23:11:10,551 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-08 23:11:10,558 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-08 23:11:10,559 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 23:11:10,559 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 23:11:10,559 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 23:11:10,667 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 23:11:10,668 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 23:11:10,668 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:11:10,668 INFO L158 Benchmark]: Toolchain (without parser) took 7832.92ms. Allocated memory was 167.8MB in the beginning and 325.1MB in the end (delta: 157.3MB). Free memory was 99.7MB in the beginning and 218.7MB in the end (delta: -119.0MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2024-11-08 23:11:10,669 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:11:10,669 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.58ms. Allocated memory is still 167.8MB. Free memory was 99.5MB in the beginning and 85.5MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 23:11:10,669 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.76ms. Allocated memory is still 167.8MB. Free memory was 85.3MB in the beginning and 139.1MB in the end (delta: -53.8MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2024-11-08 23:11:10,670 INFO L158 Benchmark]: Boogie Preprocessor took 53.46ms. Allocated memory is still 167.8MB. Free memory was 139.1MB in the beginning and 136.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 23:11:10,671 INFO L158 Benchmark]: RCFGBuilder took 475.04ms. Allocated memory is still 167.8MB. Free memory was 136.1MB in the beginning and 119.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 23:11:10,671 INFO L158 Benchmark]: TraceAbstraction took 6754.20ms. Allocated memory was 167.8MB in the beginning and 325.1MB in the end (delta: 157.3MB). Free memory was 119.3MB in the beginning and 224.0MB in the end (delta: -104.7MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2024-11-08 23:11:10,671 INFO L158 Benchmark]: Witness Printer took 123.83ms. Allocated memory is still 325.1MB. Free memory was 224.0MB in the beginning and 218.7MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 23:11:10,673 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.58ms. Allocated memory is still 167.8MB. Free memory was 99.5MB in the beginning and 85.5MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.76ms. Allocated memory is still 167.8MB. Free memory was 85.3MB in the beginning and 139.1MB in the end (delta: -53.8MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.46ms. Allocated memory is still 167.8MB. Free memory was 139.1MB in the beginning and 136.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 475.04ms. Allocated memory is still 167.8MB. Free memory was 136.1MB in the beginning and 119.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6754.20ms. Allocated memory was 167.8MB in the beginning and 325.1MB in the end (delta: 157.3MB). Free memory was 119.3MB in the beginning and 224.0MB in the end (delta: -104.7MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * Witness Printer took 123.83ms. Allocated memory is still 325.1MB. Free memory was 224.0MB in the beginning and 218.7MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 4, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 733 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 520 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 358 IncrementalHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 213 mSDtfsCounter, 358 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 314 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=2, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 25 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 457 NumberOfCodeBlocks, 457 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 543 ConstructedInterpolants, 0 QuantifiedInterpolants, 1388 SizeOfPredicates, 1 NumberOfNonLiveVariables, 218 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 2112/2184 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: (var_1_9 == 0) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((cond != 0) && (((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_6 == \old(var_1_6))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_15 == \old(var_1_15))) && (var_1_16 == \old(var_1_16)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 23:11:10,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE