./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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/nla-digbench-scaling/ps5-ll_valuebound5.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 e14135f4afb726bf8552a88de51bf2d1eeb5945775070b599f71e8288a74bc87 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 14:09:32,994 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 14:09:33,046 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 14:09:33,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 14:09:33,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 14:09:33,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 14:09:33,074 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 14:09:33,074 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 14:09:33,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 14:09:33,075 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 14:09:33,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 14:09:33,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 14:09:33,075 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 14:09:33,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 14:09:33,075 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 14:09:33,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 14:09:33,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 14:09:33,075 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 14:09:33,075 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 14:09:33,075 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 14:09:33,075 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 14:09:33,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 14:09:33,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 14:09:33,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 14:09:33,076 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:09:33,076 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 14:09:33,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 14:09:33,077 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 -> e14135f4afb726bf8552a88de51bf2d1eeb5945775070b599f71e8288a74bc87 [2025-03-03 14:09:33,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 14:09:33,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 14:09:33,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 14:09:33,290 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 14:09:33,290 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 14:09:33,291 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c [2025-03-03 14:09:34,410 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95b6843e/a482670210b54532a6e363f0a933c80e/FLAG1cc2ca48c [2025-03-03 14:09:34,624 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 14:09:34,624 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c [2025-03-03 14:09:34,632 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95b6843e/a482670210b54532a6e363f0a933c80e/FLAG1cc2ca48c [2025-03-03 14:09:34,645 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95b6843e/a482670210b54532a6e363f0a933c80e [2025-03-03 14:09:34,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 14:09:34,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 14:09:34,650 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 14:09:34,650 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 14:09:34,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 14:09:34,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@591b1c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34, skipping insertion in model container [2025-03-03 14:09:34,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,667 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 14:09:34,775 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/nla-digbench-scaling/ps5-ll_valuebound5.c[458,471] [2025-03-03 14:09:34,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:09:34,799 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 14:09:34,806 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/nla-digbench-scaling/ps5-ll_valuebound5.c[458,471] [2025-03-03 14:09:34,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:09:34,828 INFO L204 MainTranslator]: Completed translation [2025-03-03 14:09:34,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34 WrapperNode [2025-03-03 14:09:34,829 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 14:09:34,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 14:09:34,831 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 14:09:34,831 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 14:09:34,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,851 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2025-03-03 14:09:34,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 14:09:34,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 14:09:34,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 14:09:34,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 14:09:34,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,860 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,873 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]. [2025-03-03 14:09:34,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,877 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,877 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 14:09:34,881 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 14:09:34,881 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 14:09:34,881 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 14:09:34,884 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34" (1/1) ... [2025-03-03 14:09:34,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:09:34,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:09:34,910 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) [2025-03-03 14:09:34,914 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 [2025-03-03 14:09:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 14:09:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-03 14:09:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-03 14:09:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 14:09:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 14:09:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 14:09:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-03 14:09:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-03 14:09:34,962 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 14:09:34,964 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 14:09:35,069 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-03-03 14:09:35,069 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 14:09:35,075 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 14:09:35,075 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 14:09:35,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:09:35 BoogieIcfgContainer [2025-03-03 14:09:35,075 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 14:09:35,077 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 14:09:35,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 14:09:35,081 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 14:09:35,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 02:09:34" (1/3) ... [2025-03-03 14:09:35,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f926e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:09:35, skipping insertion in model container [2025-03-03 14:09:35,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:09:34" (2/3) ... [2025-03-03 14:09:35,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f926e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:09:35, skipping insertion in model container [2025-03-03 14:09:35,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:09:35" (3/3) ... [2025-03-03 14:09:35,083 INFO L128 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound5.c [2025-03-03 14:09:35,092 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 14:09:35,094 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps5-ll_valuebound5.c that has 3 procedures, 23 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 14:09:35,128 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 14:09:35,138 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;@5d317c3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 14:09:35,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 14:09:35,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-03 14:09:35,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-03 14:09:35,148 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:09:35,149 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:09:35,149 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:09:35,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:09:35,154 INFO L85 PathProgramCache]: Analyzing trace with hash 48082696, now seen corresponding path program 1 times [2025-03-03 14:09:35,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:09:35,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458579144] [2025-03-03 14:09:35,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:09:35,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:09:35,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-03 14:09:35,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-03 14:09:35,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:09:35,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:09:35,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-03 14:09:35,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:09:35,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458579144] [2025-03-03 14:09:35,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458579144] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:09:35,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987594804] [2025-03-03 14:09:35,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:09:35,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:09:35,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:09:35,267 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) [2025-03-03 14:09:35,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 14:09:35,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-03 14:09:35,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-03 14:09:35,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:09:35,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:09:35,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 14:09:35,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:09:35,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-03 14:09:35,327 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:09:35,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987594804] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:09:35,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:09:35,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-03 14:09:35,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886305530] [2025-03-03 14:09:35,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:09:35,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 14:09:35,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:09:35,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 14:09:35,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 14:09:35,354 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-03 14:09:35,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:09:35,374 INFO L93 Difference]: Finished difference Result 43 states and 59 transitions. [2025-03-03 14:09:35,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 14:09:35,377 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2025-03-03 14:09:35,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:09:35,383 INFO L225 Difference]: With dead ends: 43 [2025-03-03 14:09:35,383 INFO L226 Difference]: Without dead ends: 19 [2025-03-03 14:09:35,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 14:09:35,393 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:09:35,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:09:35,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-03-03 14:09:35,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2025-03-03 14:09:35,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-03 14:09:35,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2025-03-03 14:09:35,428 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 17 [2025-03-03 14:09:35,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:09:35,428 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2025-03-03 14:09:35,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-03 14:09:35,429 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2025-03-03 14:09:35,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-03 14:09:35,429 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:09:35,429 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:09:35,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 14:09:35,630 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 [2025-03-03 14:09:35,630 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:09:35,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:09:35,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1497490024, now seen corresponding path program 1 times [2025-03-03 14:09:35,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:09:35,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089925445] [2025-03-03 14:09:35,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:09:35,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:09:35,639 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-03 14:09:35,650 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-03 14:09:35,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:09:35,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-03 14:09:35,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804558092] [2025-03-03 14:09:35,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:09:35,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:09:35,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:09:35,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:09:35,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 14:09:35,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-03 14:09:35,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-03 14:09:35,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:09:35,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:09:35,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-03 14:09:35,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:09:35,782 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-03 14:09:35,783 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:09:35,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:09:35,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089925445] [2025-03-03 14:09:35,783 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-03 14:09:35,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804558092] [2025-03-03 14:09:35,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804558092] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:09:35,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:09:35,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 14:09:35,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338750920] [2025-03-03 14:09:35,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:09:35,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:09:35,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:09:35,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:09:35,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 14:09:35,785 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-03 14:09:35,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:09:35,848 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2025-03-03 14:09:35,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:09:35,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2025-03-03 14:09:35,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:09:35,849 INFO L225 Difference]: With dead ends: 29 [2025-03-03 14:09:35,849 INFO L226 Difference]: Without dead ends: 25 [2025-03-03 14:09:35,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:09:35,850 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:09:35,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 65 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:09:35,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2025-03-03 14:09:35,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2025-03-03 14:09:35,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-03 14:09:35,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2025-03-03 14:09:35,858 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 17 [2025-03-03 14:09:35,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:09:35,858 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2025-03-03 14:09:35,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-03 14:09:35,859 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2025-03-03 14:09:35,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-03 14:09:35,859 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:09:35,860 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:09:35,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-03 14:09:36,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-03 14:09:36,065 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:09:36,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:09:36,066 INFO L85 PathProgramCache]: Analyzing trace with hash -722676116, now seen corresponding path program 1 times [2025-03-03 14:09:36,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:09:36,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691334647] [2025-03-03 14:09:36,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:09:36,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:09:36,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-03 14:09:36,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-03 14:09:36,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:09:36,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-03 14:09:36,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [276181585] [2025-03-03 14:09:36,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:09:36,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:09:36,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:09:36,087 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:09:36,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-03 14:09:36,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-03 14:09:36,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-03 14:09:36,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:09:36,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:09:36,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-03 14:09:36,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:09:36,205 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-03 14:09:36,206 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 14:09:36,272 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-03 14:09:36,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:09:36,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691334647] [2025-03-03 14:09:36,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-03 14:09:36,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276181585] [2025-03-03 14:09:36,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276181585] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-03 14:09:36,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:09:36,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2025-03-03 14:09:36,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187244984] [2025-03-03 14:09:36,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:09:36,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:09:36,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:09:36,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:09:36,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-03 14:09:36,274 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-03 14:09:36,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:09:36,314 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2025-03-03 14:09:36,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:09:36,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2025-03-03 14:09:36,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:09:36,315 INFO L225 Difference]: With dead ends: 31 [2025-03-03 14:09:36,315 INFO L226 Difference]: Without dead ends: 27 [2025-03-03 14:09:36,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-03 14:09:36,316 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:09:36,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 62 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:09:36,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-03-03 14:09:36,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2025-03-03 14:09:36,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-03 14:09:36,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2025-03-03 14:09:36,324 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 23 [2025-03-03 14:09:36,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:09:36,325 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2025-03-03 14:09:36,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-03 14:09:36,325 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2025-03-03 14:09:36,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-03 14:09:36,325 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:09:36,325 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:09:36,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-03 14:09:36,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:09:36,526 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:09:36,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:09:36,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1455469544, now seen corresponding path program 1 times [2025-03-03 14:09:36,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:09:36,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600563905] [2025-03-03 14:09:36,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:09:36,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:09:36,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-03 14:09:36,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-03 14:09:36,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:09:36,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-03 14:09:36,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417818333] [2025-03-03 14:09:36,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:09:36,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:09:36,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:09:36,554 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:09:36,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-03 14:09:36,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-03 14:09:36,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-03 14:09:36,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:09:36,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:09:36,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-03 14:09:36,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:09:36,669 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-03 14:09:36,669 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 14:09:36,756 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-03 14:09:36,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:09:36,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600563905] [2025-03-03 14:09:36,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-03 14:09:36,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417818333] [2025-03-03 14:09:36,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417818333] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 14:09:36,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-03 14:09:36,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2025-03-03 14:09:36,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611527367] [2025-03-03 14:09:36,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-03 14:09:36,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-03 14:09:36,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:09:36,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-03 14:09:36,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:09:36,758 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 10 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 7 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-03 14:09:36,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:09:36,850 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2025-03-03 14:09:36,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-03 14:09:36,851 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 7 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 34 [2025-03-03 14:09:36,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:09:36,851 INFO L225 Difference]: With dead ends: 41 [2025-03-03 14:09:36,851 INFO L226 Difference]: Without dead ends: 33 [2025-03-03 14:09:36,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:09:36,852 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:09:36,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 129 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:09:36,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2025-03-03 14:09:36,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2025-03-03 14:09:36,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-03 14:09:36,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2025-03-03 14:09:36,864 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 34 [2025-03-03 14:09:36,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:09:36,865 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2025-03-03 14:09:36,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 7 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-03 14:09:36,866 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2025-03-03 14:09:36,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-03 14:09:36,866 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:09:36,866 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:09:36,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-03 14:09:37,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:09:37,067 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:09:37,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:09:37,068 INFO L85 PathProgramCache]: Analyzing trace with hash -431437220, now seen corresponding path program 2 times [2025-03-03 14:09:37,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:09:37,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036990474] [2025-03-03 14:09:37,068 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-03 14:09:37,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:09:37,074 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 52 statements into 2 equivalence classes. [2025-03-03 14:09:37,111 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 52 of 52 statements. [2025-03-03 14:09:37,111 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-03 14:09:37,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-03 14:09:37,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142763603] [2025-03-03 14:09:37,113 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-03 14:09:37,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:09:37,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:09:37,114 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:09:37,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-03 14:09:37,138 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 52 statements into 2 equivalence classes. [2025-03-03 14:09:37,157 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 52 of 52 statements. [2025-03-03 14:09:37,157 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-03 14:09:37,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:09:37,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-03-03 14:09:37,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:09:37,294 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 11 proven. 36 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2025-03-03 14:09:37,294 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 14:09:37,579 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 11 proven. 36 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2025-03-03 14:09:37,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:09:37,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036990474] [2025-03-03 14:09:37,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-03 14:09:37,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142763603] [2025-03-03 14:09:37,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142763603] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 14:09:37,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-03 14:09:37,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2025-03-03 14:09:37,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136262602] [2025-03-03 14:09:37,580 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-03 14:09:37,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-03 14:09:37,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:09:37,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-03 14:09:37,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2025-03-03 14:09:37,581 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 22 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 13 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2025-03-03 14:09:37,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:09:37,783 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2025-03-03 14:09:37,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-03 14:09:37,783 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 13 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 52 [2025-03-03 14:09:37,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:09:37,783 INFO L225 Difference]: With dead ends: 37 [2025-03-03 14:09:37,783 INFO L226 Difference]: Without dead ends: 0 [2025-03-03 14:09:37,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2025-03-03 14:09:37,784 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:09:37,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 154 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:09:37,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-03 14:09:37,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-03 14:09:37,785 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) [2025-03-03 14:09:37,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-03 14:09:37,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2025-03-03 14:09:37,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:09:37,785 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-03 14:09:37,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 13 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2025-03-03 14:09:37,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-03 14:09:37,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-03 14:09:37,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 14:09:37,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-03 14:09:37,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:09:37,990 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2025-03-03 14:09:37,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-03 14:09:38,094 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 14:09:38,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 02:09:38 BoogieIcfgContainer [2025-03-03 14:09:38,106 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 14:09:38,106 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 14:09:38,106 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 14:09:38,106 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 14:09:38,107 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:09:35" (3/4) ... [2025-03-03 14:09:38,108 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-03 14:09:38,112 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-03 14:09:38,112 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-03-03 14:09:38,115 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-03-03 14:09:38,115 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-03 14:09:38,115 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-03 14:09:38,115 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-03 14:09:38,169 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-03 14:09:38,169 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-03 14:09:38,169 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 14:09:38,170 INFO L158 Benchmark]: Toolchain (without parser) took 3522.01ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 89.2MB in the end (delta: 32.9MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2025-03-03 14:09:38,170 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 14:09:38,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.43ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 110.8MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 14:09:38,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.64ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.8MB in the end (delta: 986.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 14:09:38,171 INFO L158 Benchmark]: Boogie Preprocessor took 29.24ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 108.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 14:09:38,171 INFO L158 Benchmark]: IcfgBuilder took 193.95ms. Allocated memory is still 167.8MB. Free memory was 108.4MB in the beginning and 97.1MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 14:09:38,171 INFO L158 Benchmark]: TraceAbstraction took 3028.17ms. Allocated memory is still 167.8MB. Free memory was 97.1MB in the beginning and 94.2MB in the end (delta: 2.9MB). Peak memory consumption was 189.4kB. Max. memory is 16.1GB. [2025-03-03 14:09:38,171 INFO L158 Benchmark]: Witness Printer took 63.37ms. Allocated memory is still 167.8MB. Free memory was 94.2MB in the beginning and 89.2MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 14:09:38,172 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.43ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 110.8MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.64ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.8MB in the end (delta: 986.9kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.24ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 108.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 193.95ms. Allocated memory is still 167.8MB. Free memory was 108.4MB in the beginning and 97.1MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3028.17ms. Allocated memory is still 167.8MB. Free memory was 97.1MB in the beginning and 94.2MB in the end (delta: 2.9MB). Peak memory consumption was 189.4kB. Max. memory is 16.1GB. * Witness Printer took 63.37ms. Allocated memory is still 167.8MB. Free memory was 94.2MB in the beginning and 89.2MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. 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: 12]: 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 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 436 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 336 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 252 IncrementalHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 100 mSDtfsCounter, 252 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 206 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=4, 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 286 NumberOfCodeBlocks, 286 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 757 SizeOfPredicates, 7 NumberOfNonLiveVariables, 414 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 187/266 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: 28]: Location Invariant Derived location invariant: (((((y + ((__int128) y * y)) == (c + ((__int128) c * y))) && ((((__int128) 2 * c) + ((__int128) c * y)) == (((__int128) 2 * y) + ((__int128) y * y)))) && ((((__int128) k * y) == ((__int128) y * y)) || (c < k))) && ((((__int128) 30 * x) + y) == (((6 * (((((__int128) y * y) * y) * y) * y)) + ((((__int128) y * y) * y) * 10)) + (((((__int128) y * y) * y) * y) * 15)))) RESULT: Ultimate proved your program to be correct! [2025-03-03 14:09:38,190 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