./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/aim-100-1-6-unsat-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/xcsp/aim-100-1-6-unsat-3.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 d30251847c471692a2c7cfaf060cedad53374742a61982ae6df13e30693da17d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:25:42,357 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:25:42,413 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:25:42,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:25:42,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:25:42,444 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:25:42,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:25:42,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:25:42,446 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:25:42,447 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:25:42,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:25:42,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:25:42,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:25:42,449 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:25:42,450 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:25:42,450 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:25:42,450 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:25:42,450 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:25:42,450 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:25:42,451 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:25:42,451 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:25:42,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:25:42,454 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:25:42,454 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:25:42,454 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:25:42,454 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:25:42,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:25:42,455 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:25:42,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:25:42,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:25:42,455 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:25:42,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:25:42,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:25:42,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:25:42,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:25:42,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:25:42,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:25:42,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:25:42,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:25:42,456 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:25:42,457 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:25:42,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:25:42,458 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d30251847c471692a2c7cfaf060cedad53374742a61982ae6df13e30693da17d [2024-11-18 15:25:42,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:25:42,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:25:42,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:25:42,689 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:25:42,689 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:25:42,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/aim-100-1-6-unsat-3.c [2024-11-18 15:25:43,918 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:25:44,081 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:25:44,083 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/aim-100-1-6-unsat-3.c [2024-11-18 15:25:44,097 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9c2f374d/06f676db6d5b4d5191a6c20febd61ca3/FLAG3bb072890 [2024-11-18 15:25:44,109 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9c2f374d/06f676db6d5b4d5191a6c20febd61ca3 [2024-11-18 15:25:44,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:25:44,113 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:25:44,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:25:44,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:25:44,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:25:44,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:44,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a25e2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44, skipping insertion in model container [2024-11-18 15:25:44,120 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:44,157 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:25:44,451 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/xcsp/aim-100-1-6-unsat-3.c[18875,18888] [2024-11-18 15:25:44,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:25:44,476 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:25:44,604 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/xcsp/aim-100-1-6-unsat-3.c[18875,18888] [2024-11-18 15:25:44,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:25:44,635 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:25:44,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44 WrapperNode [2024-11-18 15:25:44,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:25:44,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:25:44,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:25:44,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:25:44,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:44,673 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:44,793 INFO L138 Inliner]: procedures = 13, calls = 359, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3412 [2024-11-18 15:25:44,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:25:44,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:25:44,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:25:44,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:25:44,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:44,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:44,821 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:44,877 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]. [2024-11-18 15:25:44,878 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:44,878 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:44,928 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:44,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:44,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:44,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:45,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:25:45,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:25:45,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:25:45,009 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:25:45,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44" (1/1) ... [2024-11-18 15:25:45,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:25:45,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:25:45,037 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) [2024-11-18 15:25:45,039 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 [2024-11-18 15:25:45,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:25:45,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:25:45,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:25:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:25:45,075 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-18 15:25:45,075 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-18 15:25:45,232 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:25:45,233 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:25:48,226 INFO L? ?]: Removed 803 outVars from TransFormulas that were not future-live. [2024-11-18 15:25:48,226 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:25:48,256 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:25:48,257 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 15:25:48,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:25:48 BoogieIcfgContainer [2024-11-18 15:25:48,257 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:25:48,259 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:25:48,259 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:25:48,263 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:25:48,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:25:44" (1/3) ... [2024-11-18 15:25:48,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b2e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:25:48, skipping insertion in model container [2024-11-18 15:25:48,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:25:44" (2/3) ... [2024-11-18 15:25:48,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b2e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:25:48, skipping insertion in model container [2024-11-18 15:25:48,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:25:48" (3/3) ... [2024-11-18 15:25:48,266 INFO L112 eAbstractionObserver]: Analyzing ICFG aim-100-1-6-unsat-3.c [2024-11-18 15:25:48,281 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:25:48,281 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 15:25:48,365 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:25:48,373 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;@2deadd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:25:48,374 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 15:25:48,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 1569 states, 1214 states have (on average 1.5255354200988467) internal successors, (1852), 1215 states have internal predecessors, (1852), 352 states have call successors, (352), 1 states have call predecessors, (352), 1 states have return successors, (352), 352 states have call predecessors, (352), 352 states have call successors, (352) [2024-11-18 15:25:48,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2334 [2024-11-18 15:25:48,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:25:48,486 INFO L215 NwaCegarLoop]: trace histogram [352, 352, 352, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:25:48,487 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:25:48,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:25:48,491 INFO L85 PathProgramCache]: Analyzing trace with hash 108099918, now seen corresponding path program 1 times [2024-11-18 15:25:48,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:25:48,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036170959] [2024-11-18 15:25:48,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:25:48,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:25:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:26:34,893 INFO L134 CoverageAnalysis]: Checked inductivity of 247104 backedges. 3423 proven. 24678 refuted. 0 times theorem prover too weak. 219003 trivial. 0 not checked. [2024-11-18 15:26:34,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:26:34,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036170959] [2024-11-18 15:26:34,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036170959] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 15:26:34,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565294208] [2024-11-18 15:26:34,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:26:34,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:26:34,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:26:34,897 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) [2024-11-18 15:26:34,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 15:26:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:26:35,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 4500 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-18 15:26:35,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 15:26:44,919 INFO L134 CoverageAnalysis]: Checked inductivity of 247104 backedges. 16600 proven. 6396 refuted. 0 times theorem prover too weak. 224108 trivial. 0 not checked. [2024-11-18 15:26:44,920 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 15:26:57,576 INFO L134 CoverageAnalysis]: Checked inductivity of 247104 backedges. 1596 proven. 6660 refuted. 0 times theorem prover too weak. 238848 trivial. 0 not checked. [2024-11-18 15:26:57,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565294208] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 15:26:57,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 15:26:57,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 16, 16] total 86 [2024-11-18 15:26:57,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750460934] [2024-11-18 15:26:57,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 15:26:57,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2024-11-18 15:26:57,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:26:57,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2024-11-18 15:26:57,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=461, Invalid=6849, Unknown=0, NotChecked=0, Total=7310 [2024-11-18 15:26:57,619 INFO L87 Difference]: Start difference. First operand has 1569 states, 1214 states have (on average 1.5255354200988467) internal successors, (1852), 1215 states have internal predecessors, (1852), 352 states have call successors, (352), 1 states have call predecessors, (352), 1 states have return successors, (352), 352 states have call predecessors, (352), 352 states have call successors, (352) Second operand has 86 states, 53 states have (on average 28.69811320754717) internal successors, (1521), 62 states have internal predecessors, (1521), 78 states have call successors, (959), 2 states have call predecessors, (959), 3 states have return successors, (961), 69 states have call predecessors, (961), 78 states have call successors, (961)