./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-88.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-88.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76e63db8a1f11506a4aa82d105c50692fc5fb5205570dd5e3435037592a7b2ae --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 02:59:39,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 02:59:39,295 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 02:59:39,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 02:59:39,301 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 02:59:39,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 02:59:39,325 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 02:59:39,326 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 02:59:39,326 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 02:59:39,326 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 02:59:39,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 02:59:39,327 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 02:59:39,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 02:59:39,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 02:59:39,327 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 02:59:39,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 02:59:39,327 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 02:59:39,328 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 02:59:39,328 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 02:59:39,328 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 02:59:39,328 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 02:59:39,328 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 02:59:39,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 02:59:39,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 02:59:39,328 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 02:59:39,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 02:59:39,328 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 02:59:39,329 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 02:59:39,329 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 02:59:39,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 02:59:39,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 02:59:39,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 02:59:39,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 02:59:39,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 02:59:39,330 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 02:59:39,330 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 02:59:39,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 02:59:39,330 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 02:59:39,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 02:59:39,330 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 02:59:39,330 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 02:59:39,330 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 02:59:39,330 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 02:59:39,330 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 76e63db8a1f11506a4aa82d105c50692fc5fb5205570dd5e3435037592a7b2ae [2025-03-17 02:59:39,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 02:59:39,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 02:59:39,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 02:59:39,571 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 02:59:39,572 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 02:59:39,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-88.i [2025-03-17 02:59:40,817 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adb5ec0b3/b4eb2c75db494a19bfb089f1b491606f/FLAGc2ebe9e25 [2025-03-17 02:59:41,072 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 02:59:41,073 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-88.i [2025-03-17 02:59:41,081 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adb5ec0b3/b4eb2c75db494a19bfb089f1b491606f/FLAGc2ebe9e25 [2025-03-17 02:59:41,096 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adb5ec0b3/b4eb2c75db494a19bfb089f1b491606f [2025-03-17 02:59:41,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 02:59:41,100 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 02:59:41,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 02:59:41,101 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 02:59:41,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 02:59:41,106 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e2f362c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41, skipping insertion in model container [2025-03-17 02:59:41,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,120 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 02:59:41,225 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-88.i[916,929] [2025-03-17 02:59:41,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 02:59:41,273 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 02:59:41,281 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-88.i[916,929] [2025-03-17 02:59:41,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 02:59:41,315 INFO L204 MainTranslator]: Completed translation [2025-03-17 02:59:41,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41 WrapperNode [2025-03-17 02:59:41,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 02:59:41,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 02:59:41,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 02:59:41,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 02:59:41,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,347 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2025-03-17 02:59:41,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 02:59:41,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 02:59:41,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 02:59:41,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 02:59:41,359 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,361 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,373 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]. [2025-03-17 02:59:41,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,379 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,380 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 02:59:41,387 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 02:59:41,387 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 02:59:41,387 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 02:59:41,388 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41" (1/1) ... [2025-03-17 02:59:41,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 02:59:41,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 02:59:41,411 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) [2025-03-17 02:59:41,415 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 [2025-03-17 02:59:41,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 02:59:41,429 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 02:59:41,429 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 02:59:41,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 02:59:41,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 02:59:41,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 02:59:41,491 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 02:59:41,492 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 02:59:41,708 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L104: havoc property_#t~bitwise14#1; [2025-03-17 02:59:41,730 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2025-03-17 02:59:41,730 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 02:59:41,744 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 02:59:41,744 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 02:59:41,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:59:41 BoogieIcfgContainer [2025-03-17 02:59:41,745 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 02:59:41,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 02:59:41,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 02:59:41,751 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 02:59:41,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:59:41" (1/3) ... [2025-03-17 02:59:41,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddd0623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:59:41, skipping insertion in model container [2025-03-17 02:59:41,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:59:41" (2/3) ... [2025-03-17 02:59:41,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddd0623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:59:41, skipping insertion in model container [2025-03-17 02:59:41,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:59:41" (3/3) ... [2025-03-17 02:59:41,753 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-88.i [2025-03-17 02:59:41,763 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 02:59:41,764 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-88.i that has 2 procedures, 54 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 02:59:41,809 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 02:59:41,818 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;@479bec36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 02:59:41,818 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 02:59:41,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 33 states have (on average 1.393939393939394) internal successors, (46), 34 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-17 02:59:41,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-17 02:59:41,831 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:59:41,832 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:59:41,832 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:59:41,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:59:41,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2079198621, now seen corresponding path program 1 times [2025-03-17 02:59:41,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 02:59:41,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141128673] [2025-03-17 02:59:41,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:59:41,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 02:59:41,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-17 02:59:41,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-17 02:59:41,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:59:41,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:59:42,057 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2025-03-17 02:59:42,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 02:59:42,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141128673] [2025-03-17 02:59:42,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141128673] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 02:59:42,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405476646] [2025-03-17 02:59:42,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:59:42,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 02:59:42,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 02:59:42,062 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) [2025-03-17 02:59:42,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 02:59:42,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-17 02:59:42,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-17 02:59:42,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:59:42,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:59:42,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 02:59:42,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 02:59:42,208 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2025-03-17 02:59:42,208 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 02:59:42,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405476646] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 02:59:42,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 02:59:42,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 02:59:42,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960704453] [2025-03-17 02:59:42,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 02:59:42,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 02:59:42,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 02:59:42,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 02:59:42,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 02:59:42,233 INFO L87 Difference]: Start difference. First operand has 54 states, 33 states have (on average 1.393939393939394) internal successors, (46), 34 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2025-03-17 02:59:42,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 02:59:42,278 INFO L93 Difference]: Finished difference Result 105 states and 180 transitions. [2025-03-17 02:59:42,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 02:59:42,280 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2025-03-17 02:59:42,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 02:59:42,287 INFO L225 Difference]: With dead ends: 105 [2025-03-17 02:59:42,288 INFO L226 Difference]: Without dead ends: 52 [2025-03-17 02:59:42,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 02:59:42,293 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 02:59:42,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 02:59:42,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2025-03-17 02:59:42,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2025-03-17 02:59:42,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 32 states have (on average 1.3125) internal successors, (42), 32 states have internal predecessors, (42), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-17 02:59:42,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2025-03-17 02:59:42,329 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 113 [2025-03-17 02:59:42,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 02:59:42,330 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2025-03-17 02:59:42,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2025-03-17 02:59:42,330 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2025-03-17 02:59:42,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-17 02:59:42,332 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:59:42,332 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:59:42,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 02:59:42,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 02:59:42,536 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:59:42,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:59:42,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1636054467, now seen corresponding path program 1 times [2025-03-17 02:59:42,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 02:59:42,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770480360] [2025-03-17 02:59:42,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:59:42,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 02:59:42,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-17 02:59:42,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-17 02:59:42,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:59:42,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:59:43,144 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 02:59:43,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 02:59:43,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770480360] [2025-03-17 02:59:43,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770480360] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 02:59:43,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 02:59:43,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 02:59:43,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210165737] [2025-03-17 02:59:43,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 02:59:43,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 02:59:43,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 02:59:43,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 02:59:43,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 02:59:43,150 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-17 02:59:43,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 02:59:43,377 INFO L93 Difference]: Finished difference Result 155 states and 233 transitions. [2025-03-17 02:59:43,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 02:59:43,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2025-03-17 02:59:43,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 02:59:43,380 INFO L225 Difference]: With dead ends: 155 [2025-03-17 02:59:43,380 INFO L226 Difference]: Without dead ends: 104 [2025-03-17 02:59:43,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 02:59:43,381 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 54 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 02:59:43,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 202 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 02:59:43,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-03-17 02:59:43,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 95. [2025-03-17 02:59:43,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 56 states have internal predecessors, (72), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2025-03-17 02:59:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 144 transitions. [2025-03-17 02:59:43,412 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 144 transitions. Word has length 113 [2025-03-17 02:59:43,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 02:59:43,412 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 144 transitions. [2025-03-17 02:59:43,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-17 02:59:43,414 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 144 transitions. [2025-03-17 02:59:43,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-17 02:59:43,418 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:59:43,418 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:59:43,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 02:59:43,419 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:59:43,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:59:43,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1955145951, now seen corresponding path program 1 times [2025-03-17 02:59:43,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 02:59:43,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225656627] [2025-03-17 02:59:43,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:59:43,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 02:59:43,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-17 02:59:43,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-17 02:59:43,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:59:43,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:59:43,647 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 02:59:43,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 02:59:43,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225656627] [2025-03-17 02:59:43,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225656627] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 02:59:43,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 02:59:43,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 02:59:43,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129601213] [2025-03-17 02:59:43,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 02:59:43,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 02:59:43,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 02:59:43,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 02:59:43,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 02:59:43,649 INFO L87 Difference]: Start difference. First operand 95 states and 144 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-17 02:59:43,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 02:59:43,795 INFO L93 Difference]: Finished difference Result 163 states and 244 transitions. [2025-03-17 02:59:43,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 02:59:43,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2025-03-17 02:59:43,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 02:59:43,803 INFO L225 Difference]: With dead ends: 163 [2025-03-17 02:59:43,804 INFO L226 Difference]: Without dead ends: 104 [2025-03-17 02:59:43,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 02:59:43,806 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 51 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 02:59:43,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 206 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 02:59:43,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-03-17 02:59:43,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2025-03-17 02:59:43,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2025-03-17 02:59:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 144 transitions. [2025-03-17 02:59:43,838 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 144 transitions. Word has length 115 [2025-03-17 02:59:43,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 02:59:43,839 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 144 transitions. [2025-03-17 02:59:43,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-17 02:59:43,839 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 144 transitions. [2025-03-17 02:59:43,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-03-17 02:59:43,840 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:59:43,840 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:59:43,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 02:59:43,840 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:59:43,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:59:43,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2024768138, now seen corresponding path program 1 times [2025-03-17 02:59:43,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 02:59:43,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766022598] [2025-03-17 02:59:43,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:59:43,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 02:59:43,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-17 02:59:43,885 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-17 02:59:43,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:59:43,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:59:44,116 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 02:59:44,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 02:59:44,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766022598] [2025-03-17 02:59:44,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766022598] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 02:59:44,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 02:59:44,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 02:59:44,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988213229] [2025-03-17 02:59:44,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 02:59:44,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 02:59:44,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 02:59:44,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 02:59:44,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 02:59:44,120 INFO L87 Difference]: Start difference. First operand 96 states and 144 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-17 02:59:44,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 02:59:44,327 INFO L93 Difference]: Finished difference Result 190 states and 273 transitions. [2025-03-17 02:59:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 02:59:44,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 117 [2025-03-17 02:59:44,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 02:59:44,330 INFO L225 Difference]: With dead ends: 190 [2025-03-17 02:59:44,330 INFO L226 Difference]: Without dead ends: 133 [2025-03-17 02:59:44,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-17 02:59:44,331 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 101 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 02:59:44,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 316 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 02:59:44,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2025-03-17 02:59:44,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 97. [2025-03-17 02:59:44,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 58 states have internal predecessors, (73), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2025-03-17 02:59:44,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 145 transitions. [2025-03-17 02:59:44,351 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 145 transitions. Word has length 117 [2025-03-17 02:59:44,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 02:59:44,352 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 145 transitions. [2025-03-17 02:59:44,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-17 02:59:44,352 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 145 transitions. [2025-03-17 02:59:44,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-03-17 02:59:44,353 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:59:44,353 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:59:44,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 02:59:44,354 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:59:44,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:59:44,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1895685419, now seen corresponding path program 1 times [2025-03-17 02:59:44,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 02:59:44,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255950573] [2025-03-17 02:59:44,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:59:44,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 02:59:44,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-17 02:59:44,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-17 02:59:44,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:59:44,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:59:47,301 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 02:59:47,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 02:59:47,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255950573] [2025-03-17 02:59:47,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255950573] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 02:59:47,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 02:59:47,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 02:59:47,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720461995] [2025-03-17 02:59:47,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 02:59:47,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 02:59:47,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 02:59:47,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 02:59:47,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-17 02:59:47,306 INFO L87 Difference]: Start difference. First operand 97 states and 145 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-17 02:59:47,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 02:59:47,970 INFO L93 Difference]: Finished difference Result 115 states and 164 transitions. [2025-03-17 02:59:47,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 02:59:47,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 117 [2025-03-17 02:59:47,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 02:59:47,972 INFO L225 Difference]: With dead ends: 115 [2025-03-17 02:59:47,973 INFO L226 Difference]: Without dead ends: 113 [2025-03-17 02:59:47,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-17 02:59:47,974 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 61 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 02:59:47,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 394 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 02:59:47,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2025-03-17 02:59:47,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2025-03-17 02:59:48,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 71 states have (on average 1.2394366197183098) internal successors, (88), 71 states have internal predecessors, (88), 36 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2025-03-17 02:59:48,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 160 transitions. [2025-03-17 02:59:48,003 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 160 transitions. Word has length 117 [2025-03-17 02:59:48,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 02:59:48,003 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 160 transitions. [2025-03-17 02:59:48,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-17 02:59:48,004 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 160 transitions. [2025-03-17 02:59:48,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-03-17 02:59:48,005 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:59:48,005 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:59:48,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 02:59:48,005 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:59:48,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:59:48,010 INFO L85 PathProgramCache]: Analyzing trace with hash 591827414, now seen corresponding path program 1 times [2025-03-17 02:59:48,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 02:59:48,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938553362] [2025-03-17 02:59:48,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:59:48,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 02:59:48,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-17 02:59:48,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-17 02:59:48,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:59:48,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:59:49,965 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-17 02:59:49,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 02:59:49,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938553362] [2025-03-17 02:59:49,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938553362] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 02:59:49,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 02:59:49,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 02:59:49,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600783231] [2025-03-17 02:59:49,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 02:59:49,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 02:59:49,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 02:59:49,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 02:59:49,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-17 02:59:49,967 INFO L87 Difference]: Start difference. First operand 111 states and 160 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-17 02:59:50,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 02:59:50,343 INFO L93 Difference]: Finished difference Result 113 states and 162 transitions. [2025-03-17 02:59:50,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 02:59:50,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 117 [2025-03-17 02:59:50,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 02:59:50,344 INFO L225 Difference]: With dead ends: 113 [2025-03-17 02:59:50,344 INFO L226 Difference]: Without dead ends: 0 [2025-03-17 02:59:50,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2025-03-17 02:59:50,345 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 55 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 02:59:50,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 404 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 02:59:50,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-17 02:59:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-17 02:59:50,346 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) [2025-03-17 02:59:50,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 02:59:50,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2025-03-17 02:59:50,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 02:59:50,346 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 02:59:50,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-03-17 02:59:50,346 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-17 02:59:50,346 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-17 02:59:50,350 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-17 02:59:50,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 02:59:50,353 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-17 02:59:50,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-17 02:59:50,611 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 02:59:50,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:59:50 BoogieIcfgContainer [2025-03-17 02:59:50,629 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 02:59:50,630 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 02:59:50,630 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 02:59:50,630 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 02:59:50,631 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:59:41" (3/4) ... [2025-03-17 02:59:50,633 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 02:59:50,637 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-17 02:59:50,643 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-03-17 02:59:50,644 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-17 02:59:50,644 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 02:59:50,644 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 02:59:50,732 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 02:59:50,732 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 02:59:50,732 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 02:59:50,734 INFO L158 Benchmark]: Toolchain (without parser) took 9633.43ms. Allocated memory was 142.6MB in the beginning and 595.6MB in the end (delta: 453.0MB). Free memory was 112.4MB in the beginning and 414.6MB in the end (delta: -302.2MB). Peak memory consumption was 146.0MB. Max. memory is 16.1GB. [2025-03-17 02:59:50,734 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 02:59:50,735 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.44ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 99.3MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 02:59:50,736 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.11ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 97.7MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 02:59:50,736 INFO L158 Benchmark]: Boogie Preprocessor took 30.24ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 95.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 02:59:50,737 INFO L158 Benchmark]: IcfgBuilder took 358.14ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 77.6MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 02:59:50,737 INFO L158 Benchmark]: TraceAbstraction took 8882.87ms. Allocated memory was 142.6MB in the beginning and 595.6MB in the end (delta: 453.0MB). Free memory was 77.1MB in the beginning and 418.7MB in the end (delta: -341.6MB). Peak memory consumption was 112.4MB. Max. memory is 16.1GB. [2025-03-17 02:59:50,737 INFO L158 Benchmark]: Witness Printer took 102.20ms. Allocated memory is still 595.6MB. Free memory was 418.7MB in the beginning and 414.6MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 02:59:50,739 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.44ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 99.3MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.11ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 97.7MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.24ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 95.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 358.14ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 77.6MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8882.87ms. Allocated memory was 142.6MB in the beginning and 595.6MB in the end (delta: 453.0MB). Free memory was 77.1MB in the beginning and 418.7MB in the end (delta: -341.6MB). Peak memory consumption was 112.4MB. Max. memory is 16.1GB. * Witness Printer took 102.20ms. Allocated memory is still 595.6MB. Free memory was 418.7MB in the beginning and 414.6MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 100 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 6, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 322 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 322 mSDsluCounter, 1598 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1144 mSDsCounter, 178 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 437 IncrementalHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 178 mSolverCounterUnsat, 454 mSDtfsCounter, 437 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=5, InterpolantAutomatonStates: 36, 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, 6 MinimizatonAttempts, 55 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 805 NumberOfCodeBlocks, 805 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 798 ConstructedInterpolants, 0 QuantifiedInterpolants, 4567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 4250/4284 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 110]: Location Invariant Derived location invariant: ((((var_1_1 == var_1_7) && ((((var_1_9 < var_1_7) || (((((var_1_9 >= 0) ? (var_1_9 % 256) : ((var_1_9 % 256) + 256)) == var_1_8) || (127 < ((var_1_9 >= 0) ? (var_1_9 % 256) : ((var_1_9 % 256) + 256)))) && ((((var_1_9 >= 0) ? (var_1_9 % 256) : ((var_1_9 % 256) + 256)) == (256 + var_1_8)) || (((var_1_9 >= 0) ? (var_1_9 % 256) : ((var_1_9 % 256) + 256)) < 128)))) && ((((127 < ((var_1_7 >= 0) ? (var_1_7 % 256) : ((var_1_7 % 256) + 256))) || (((var_1_7 >= 0) ? (var_1_7 % 256) : ((var_1_7 % 256) + 256)) == var_1_8)) && ((((var_1_7 >= 0) ? (var_1_7 % 256) : ((var_1_7 % 256) + 256)) == (256 + var_1_8)) || (((var_1_7 >= 0) ? (var_1_7 % 256) : ((var_1_7 % 256) + 256)) < 128))) || (var_1_7 < (var_1_9 + 1)))) || (var_1_5 == 0))) && (((((var_1_8 + 1) <= 0) && (((long long) var_1_8 + var_1_14) == 0)) || ((0 <= var_1_8) && (var_1_8 == var_1_14))) || (((var_1_8 >= 0) ? (var_1_8 % 4294967296) : ((var_1_8 % 4294967296) + 4294967296)) < var_1_12))) || (((((((16 + var_1_15) == 0) && ((((last_1_var_1_15 >= 0) ? (last_1_var_1_15 / 4294967296) : ((last_1_var_1_15 / 4294967296) - 1)) + 1) <= 0)) && (25 == var_1_10)) && (last_1_var_1_10 <= (41 + last_1_var_1_15))) && (25 <= last_1_var_1_10)) && (var_1_5 == 0))) RESULT: Ultimate proved your program to be correct! [2025-03-17 02:59:50,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE