./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label37.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/eca-rers2012/Problem10_label37.c -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 0119f2b2fb4504b695be9741d94be3417a406a0ace70334ccdd5124dc6f7dfad --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:20:19,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:20:19,457 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:20:19,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:20:19,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:20:19,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:20:19,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:20:19,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:20:19,482 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:20:19,483 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:20:19,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:20:19,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:20:19,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:20:19,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:20:19,484 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:20:19,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:20:19,486 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:20:19,487 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:20:19,487 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:20:19,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:20:19,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:20:19,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:20:19,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:20:19,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:20:19,490 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:20:19,490 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:20:19,490 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:20:19,491 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:20:19,491 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:20:19,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:20:19,491 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:20:19,491 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:20:19,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:20:19,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:20:19,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:20:19,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:20:19,492 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:20:19,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:20:19,493 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:20:19,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:20:19,493 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:20:19,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:20:19,494 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0119f2b2fb4504b695be9741d94be3417a406a0ace70334ccdd5124dc6f7dfad [2024-11-09 19:20:19,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:20:19,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:20:19,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:20:19,697 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:20:19,697 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:20:19,698 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label37.c [2024-11-09 19:20:20,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:20:21,086 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:20:21,087 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label37.c [2024-11-09 19:20:21,097 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f746abf7/a87434c6d1d64933945bc660fac7fe40/FLAG5a25c31f9 [2024-11-09 19:20:21,111 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f746abf7/a87434c6d1d64933945bc660fac7fe40 [2024-11-09 19:20:21,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:20:21,118 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:20:21,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:20:21,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:20:21,124 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:20:21,125 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63437a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21, skipping insertion in model container [2024-11-09 19:20:21,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:20:21,367 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/eca-rers2012/Problem10_label37.c[6216,6229] [2024-11-09 19:20:21,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:20:21,503 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:20:21,525 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/eca-rers2012/Problem10_label37.c[6216,6229] [2024-11-09 19:20:21,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:20:21,580 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:20:21,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21 WrapperNode [2024-11-09 19:20:21,580 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:20:21,581 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:20:21,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:20:21,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:20:21,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,600 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,642 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2024-11-09 19:20:21,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:20:21,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:20:21,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:20:21,644 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:20:21,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,655 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,682 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]. [2024-11-09 19:20:21,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,683 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,703 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,720 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:20:21,721 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:20:21,721 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:20:21,722 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:20:21,722 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21" (1/1) ... [2024-11-09 19:20:21,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:20:21,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:20:21,747 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) [2024-11-09 19:20:21,749 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 [2024-11-09 19:20:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:20:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:20:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:20:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:20:21,827 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:20:21,829 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:20:22,805 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-11-09 19:20:22,805 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:20:22,830 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:20:22,832 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:20:22,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:20:22 BoogieIcfgContainer [2024-11-09 19:20:22,832 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:20:22,834 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:20:22,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:20:22,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:20:22,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:20:21" (1/3) ... [2024-11-09 19:20:22,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fab2dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:20:22, skipping insertion in model container [2024-11-09 19:20:22,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:21" (2/3) ... [2024-11-09 19:20:22,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fab2dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:20:22, skipping insertion in model container [2024-11-09 19:20:22,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:20:22" (3/3) ... [2024-11-09 19:20:22,839 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label37.c [2024-11-09 19:20:22,855 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:20:22,855 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:20:22,911 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:20:22,916 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;@5eba059d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:20:22,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:20:22,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 207 states have (on average 2.033816425120773) internal successors, (421), 208 states have internal predecessors, (421), 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) [2024-11-09 19:20:22,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 19:20:22,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:22,926 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:22,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:22,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:22,930 INFO L85 PathProgramCache]: Analyzing trace with hash 278123312, now seen corresponding path program 1 times [2024-11-09 19:20:22,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:22,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329889703] [2024-11-09 19:20:22,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:22,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:23,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:23,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:23,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329889703] [2024-11-09 19:20:23,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329889703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:23,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:23,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:20:23,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549205942] [2024-11-09 19:20:23,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:23,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:23,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:23,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:23,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:23,262 INFO L87 Difference]: Start difference. First operand has 209 states, 207 states have (on average 2.033816425120773) internal successors, (421), 208 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 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) [2024-11-09 19:20:24,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:24,009 INFO L93 Difference]: Finished difference Result 573 states and 1209 transitions. [2024-11-09 19:20:24,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:24,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-09 19:20:24,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:24,019 INFO L225 Difference]: With dead ends: 573 [2024-11-09 19:20:24,019 INFO L226 Difference]: Without dead ends: 285 [2024-11-09 19:20:24,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:24,024 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 198 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:24,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 70 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 19:20:24,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-09 19:20:24,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2024-11-09 19:20:24,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.982394366197183) internal successors, (563), 284 states have internal predecessors, (563), 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) [2024-11-09 19:20:24,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 563 transitions. [2024-11-09 19:20:24,061 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 563 transitions. Word has length 56 [2024-11-09 19:20:24,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:24,062 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 563 transitions. [2024-11-09 19:20:24,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 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) [2024-11-09 19:20:24,062 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 563 transitions. [2024-11-09 19:20:24,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 19:20:24,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:24,065 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:24,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:20:24,066 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:24,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:24,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1839222676, now seen corresponding path program 1 times [2024-11-09 19:20:24,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:24,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201798143] [2024-11-09 19:20:24,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:24,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:24,214 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:24,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:24,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201798143] [2024-11-09 19:20:24,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201798143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:24,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:24,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:20:24,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883762557] [2024-11-09 19:20:24,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:24,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:24,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:24,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:24,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:24,231 INFO L87 Difference]: Start difference. First operand 285 states and 563 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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) [2024-11-09 19:20:24,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:24,728 INFO L93 Difference]: Finished difference Result 848 states and 1683 transitions. [2024-11-09 19:20:24,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:24,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-09 19:20:24,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:24,731 INFO L225 Difference]: With dead ends: 848 [2024-11-09 19:20:24,731 INFO L226 Difference]: Without dead ends: 565 [2024-11-09 19:20:24,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:24,733 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 149 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:24,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 71 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 19:20:24,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-09 19:20:24,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2024-11-09 19:20:24,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 564 states have (on average 1.8280141843971631) internal successors, (1031), 564 states have internal predecessors, (1031), 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) [2024-11-09 19:20:24,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 1031 transitions. [2024-11-09 19:20:24,750 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 1031 transitions. Word has length 127 [2024-11-09 19:20:24,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:24,750 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 1031 transitions. [2024-11-09 19:20:24,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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) [2024-11-09 19:20:24,750 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 1031 transitions. [2024-11-09 19:20:24,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-09 19:20:24,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:24,753 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:24,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:20:24,753 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:24,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:24,754 INFO L85 PathProgramCache]: Analyzing trace with hash -804421586, now seen corresponding path program 1 times [2024-11-09 19:20:24,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:24,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706219990] [2024-11-09 19:20:24,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:24,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 36 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:24,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:24,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706219990] [2024-11-09 19:20:24,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706219990] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:20:24,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656604629] [2024-11-09 19:20:24,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:24,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:20:24,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:20:24,995 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) [2024-11-09 19:20:24,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:20:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:25,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:20:25,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:20:25,148 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:25,150 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:20:25,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656604629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:25,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:20:25,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-09 19:20:25,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042707489] [2024-11-09 19:20:25,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:25,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:25,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:25,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:25,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:20:25,156 INFO L87 Difference]: Start difference. First operand 565 states and 1031 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:25,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:25,635 INFO L93 Difference]: Finished difference Result 988 states and 1826 transitions. [2024-11-09 19:20:25,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:25,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2024-11-09 19:20:25,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:25,639 INFO L225 Difference]: With dead ends: 988 [2024-11-09 19:20:25,648 INFO L226 Difference]: Without dead ends: 985 [2024-11-09 19:20:25,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:20:25,650 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 204 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:25,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 15 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 19:20:25,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-11-09 19:20:25,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 705. [2024-11-09 19:20:25,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 704 states have (on average 1.875) internal successors, (1320), 704 states have internal predecessors, (1320), 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) [2024-11-09 19:20:25,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 1320 transitions. [2024-11-09 19:20:25,674 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 1320 transitions. Word has length 132 [2024-11-09 19:20:25,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:25,675 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 1320 transitions. [2024-11-09 19:20:25,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:20:25,675 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 1320 transitions. [2024-11-09 19:20:25,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-09 19:20:25,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:25,680 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:25,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 19:20:25,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:20:25,885 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:25,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:25,886 INFO L85 PathProgramCache]: Analyzing trace with hash 927278044, now seen corresponding path program 1 times [2024-11-09 19:20:25,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:25,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237692791] [2024-11-09 19:20:25,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:25,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:26,243 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:26,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:26,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237692791] [2024-11-09 19:20:26,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237692791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:26,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:26,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:20:26,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999021883] [2024-11-09 19:20:26,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:26,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 19:20:26,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:26,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 19:20:26,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:20:26,246 INFO L87 Difference]: Start difference. First operand 705 states and 1320 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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) [2024-11-09 19:20:26,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:26,841 INFO L93 Difference]: Finished difference Result 1548 states and 2872 transitions. [2024-11-09 19:20:26,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:20:26,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2024-11-09 19:20:26,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:26,844 INFO L225 Difference]: With dead ends: 1548 [2024-11-09 19:20:26,844 INFO L226 Difference]: Without dead ends: 845 [2024-11-09 19:20:26,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:20:26,846 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 310 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:26,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 93 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:20:26,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-09 19:20:26,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2024-11-09 19:20:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 844 states have (on average 1.8234597156398105) internal successors, (1539), 844 states have internal predecessors, (1539), 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) [2024-11-09 19:20:26,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1539 transitions. [2024-11-09 19:20:26,858 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1539 transitions. Word has length 175 [2024-11-09 19:20:26,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:26,858 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1539 transitions. [2024-11-09 19:20:26,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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) [2024-11-09 19:20:26,859 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1539 transitions. [2024-11-09 19:20:26,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-09 19:20:26,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:26,861 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:26,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:20:26,861 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:26,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:26,861 INFO L85 PathProgramCache]: Analyzing trace with hash 828577174, now seen corresponding path program 1 times [2024-11-09 19:20:26,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:26,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30730667] [2024-11-09 19:20:26,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:26,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:27,176 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:27,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:27,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30730667] [2024-11-09 19:20:27,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30730667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:27,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:27,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 19:20:27,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265561988] [2024-11-09 19:20:27,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:27,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 19:20:27,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:27,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 19:20:27,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:20:27,177 INFO L87 Difference]: Start difference. First operand 845 states and 1539 transitions. Second operand has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 6 states have internal predecessors, (211), 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) [2024-11-09 19:20:27,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:27,684 INFO L93 Difference]: Finished difference Result 1604 states and 2913 transitions. [2024-11-09 19:20:27,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 19:20:27,684 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2024-11-09 19:20:27,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:27,688 INFO L225 Difference]: With dead ends: 1604 [2024-11-09 19:20:27,688 INFO L226 Difference]: Without dead ends: 845 [2024-11-09 19:20:27,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:20:27,690 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 217 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:27,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 34 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 19:20:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-09 19:20:27,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2024-11-09 19:20:27,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 844 states have (on average 1.816350710900474) internal successors, (1533), 844 states have internal predecessors, (1533), 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) [2024-11-09 19:20:27,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1533 transitions. [2024-11-09 19:20:27,702 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1533 transitions. Word has length 211 [2024-11-09 19:20:27,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:27,703 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1533 transitions. [2024-11-09 19:20:27,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 6 states have internal predecessors, (211), 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) [2024-11-09 19:20:27,703 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1533 transitions. [2024-11-09 19:20:27,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-09 19:20:27,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:27,705 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:27,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:20:27,705 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:27,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:27,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1085551324, now seen corresponding path program 1 times [2024-11-09 19:20:27,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:27,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067597498] [2024-11-09 19:20:27,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:27,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:27,880 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:27,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:27,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067597498] [2024-11-09 19:20:27,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067597498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:27,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:27,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:20:27,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055622303] [2024-11-09 19:20:27,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:27,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:27,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:27,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:27,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:27,884 INFO L87 Difference]: Start difference. First operand 845 states and 1533 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2024-11-09 19:20:28,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:28,360 INFO L93 Difference]: Finished difference Result 1968 states and 3691 transitions. [2024-11-09 19:20:28,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:28,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2024-11-09 19:20:28,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:28,366 INFO L225 Difference]: With dead ends: 1968 [2024-11-09 19:20:28,366 INFO L226 Difference]: Without dead ends: 1265 [2024-11-09 19:20:28,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:28,367 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 124 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:28,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 293 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 19:20:28,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2024-11-09 19:20:28,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 845. [2024-11-09 19:20:28,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 844 states have (on average 1.8056872037914693) internal successors, (1524), 844 states have internal predecessors, (1524), 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) [2024-11-09 19:20:28,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1524 transitions. [2024-11-09 19:20:28,381 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1524 transitions. Word has length 218 [2024-11-09 19:20:28,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:28,381 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1524 transitions. [2024-11-09 19:20:28,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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) [2024-11-09 19:20:28,381 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1524 transitions. [2024-11-09 19:20:28,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-09 19:20:28,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:28,383 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:28,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:20:28,384 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:28,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:28,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1330093822, now seen corresponding path program 1 times [2024-11-09 19:20:28,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:28,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917143869] [2024-11-09 19:20:28,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:28,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:20:28,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:28,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917143869] [2024-11-09 19:20:28,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917143869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:28,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:28,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:20:28,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107003813] [2024-11-09 19:20:28,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:28,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:28,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:28,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:28,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:28,563 INFO L87 Difference]: Start difference. First operand 845 states and 1524 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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) [2024-11-09 19:20:29,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:29,023 INFO L93 Difference]: Finished difference Result 1968 states and 3673 transitions. [2024-11-09 19:20:29,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:29,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2024-11-09 19:20:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:29,027 INFO L225 Difference]: With dead ends: 1968 [2024-11-09 19:20:29,027 INFO L226 Difference]: Without dead ends: 1265 [2024-11-09 19:20:29,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:29,028 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 149 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:29,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 269 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 19:20:29,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2024-11-09 19:20:29,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1125. [2024-11-09 19:20:29,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1124 states have (on average 1.7855871886120998) internal successors, (2007), 1124 states have internal predecessors, (2007), 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) [2024-11-09 19:20:29,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 2007 transitions. [2024-11-09 19:20:29,044 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 2007 transitions. Word has length 247 [2024-11-09 19:20:29,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:29,044 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 2007 transitions. [2024-11-09 19:20:29,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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) [2024-11-09 19:20:29,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 2007 transitions. [2024-11-09 19:20:29,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-09 19:20:29,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:20:29,048 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:29,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:20:29,048 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:20:29,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:20:29,049 INFO L85 PathProgramCache]: Analyzing trace with hash 92071948, now seen corresponding path program 1 times [2024-11-09 19:20:29,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:20:29,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289409860] [2024-11-09 19:20:29,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:20:29,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:20:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:20:29,243 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2024-11-09 19:20:29,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:20:29,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289409860] [2024-11-09 19:20:29,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289409860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:20:29,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:20:29,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:20:29,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654424179] [2024-11-09 19:20:29,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:20:29,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:20:29,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:20:29,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:20:29,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:29,245 INFO L87 Difference]: Start difference. First operand 1125 states and 2007 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2024-11-09 19:20:29,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:20:29,737 INFO L93 Difference]: Finished difference Result 2385 states and 4293 transitions. [2024-11-09 19:20:29,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:20:29,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 358 [2024-11-09 19:20:29,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:20:29,738 INFO L225 Difference]: With dead ends: 2385 [2024-11-09 19:20:29,738 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 19:20:29,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:20:29,741 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 162 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:20:29,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 299 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 19:20:29,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 19:20:29,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 19:20:29,742 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) [2024-11-09 19:20:29,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 19:20:29,742 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 358 [2024-11-09 19:20:29,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:20:29,742 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 19:20:29,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2024-11-09 19:20:29,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 19:20:29,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 19:20:29,744 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 19:20:29,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:20:29,747 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:20:29,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 19:20:29,834 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 19:20:29,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:20:29 BoogieIcfgContainer [2024-11-09 19:20:29,847 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 19:20:29,847 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 19:20:29,847 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 19:20:29,847 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 19:20:29,848 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:20:22" (3/4) ... [2024-11-09 19:20:29,850 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 19:20:29,868 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 19:20:29,870 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 19:20:29,871 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 19:20:29,872 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 19:20:29,990 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 19:20:29,992 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 19:20:29,992 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 19:20:29,992 INFO L158 Benchmark]: Toolchain (without parser) took 8874.75ms. Allocated memory was 165.7MB in the beginning and 327.2MB in the end (delta: 161.5MB). Free memory was 102.1MB in the beginning and 126.1MB in the end (delta: -24.0MB). Peak memory consumption was 135.8MB. Max. memory is 16.1GB. [2024-11-09 19:20:29,993 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 19:20:29,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.74ms. Allocated memory is still 165.7MB. Free memory was 101.7MB in the beginning and 119.6MB in the end (delta: -17.9MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-11-09 19:20:29,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.75ms. Allocated memory is still 165.7MB. Free memory was 119.6MB in the beginning and 111.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 19:20:29,993 INFO L158 Benchmark]: Boogie Preprocessor took 77.10ms. Allocated memory is still 165.7MB. Free memory was 111.2MB in the beginning and 102.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 19:20:29,993 INFO L158 Benchmark]: IcfgBuilder took 1111.09ms. Allocated memory was 165.7MB in the beginning and 226.5MB in the end (delta: 60.8MB). Free memory was 101.6MB in the beginning and 157.8MB in the end (delta: -56.3MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2024-11-09 19:20:29,994 INFO L158 Benchmark]: TraceAbstraction took 7012.42ms. Allocated memory was 226.5MB in the beginning and 327.2MB in the end (delta: 100.7MB). Free memory was 156.8MB in the beginning and 139.7MB in the end (delta: 17.0MB). Peak memory consumption was 117.7MB. Max. memory is 16.1GB. [2024-11-09 19:20:29,994 INFO L158 Benchmark]: Witness Printer took 144.79ms. Allocated memory is still 327.2MB. Free memory was 139.7MB in the beginning and 126.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 19:20:29,995 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.74ms. Allocated memory is still 165.7MB. Free memory was 101.7MB in the beginning and 119.6MB in the end (delta: -17.9MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.75ms. Allocated memory is still 165.7MB. Free memory was 119.6MB in the beginning and 111.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.10ms. Allocated memory is still 165.7MB. Free memory was 111.2MB in the beginning and 102.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 1111.09ms. Allocated memory was 165.7MB in the beginning and 226.5MB in the end (delta: 60.8MB). Free memory was 101.6MB in the beginning and 157.8MB in the end (delta: -56.3MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7012.42ms. Allocated memory was 226.5MB in the beginning and 327.2MB in the end (delta: 100.7MB). Free memory was 156.8MB in the beginning and 139.7MB in the end (delta: 17.0MB). Peak memory consumption was 117.7MB. Max. memory is 16.1GB. * Witness Printer took 144.79ms. Allocated memory is still 327.2MB. Free memory was 139.7MB in the beginning and 126.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. 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: 176]: 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 1 procedures, 209 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1513 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1513 mSDsluCounter, 1144 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 75 mSDsCounter, 514 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4840 IncrementalHoareTripleChecker+Invalid, 5354 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 514 mSolverCounterUnsat, 1069 mSDtfsCounter, 4840 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 160 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1125occurred in iteration=7, 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, 8 MinimizatonAttempts, 840 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1656 NumberOfCodeBlocks, 1656 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1647 ConstructedInterpolants, 0 QuantifiedInterpolants, 6179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 213 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 1142/1158 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: 592]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 19:20:30,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE