./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version da043454 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 ../../../trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc4c50e18e47523e928ab5cb1be4f67a90a1d81a2df8ad805b262a1f43e6e6a4 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:04:09,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:04:09,391 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-04-29 11:04:09,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:04:09,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:04:09,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:04:09,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:04:09,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:04:09,416 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 11:04:09,417 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 11:04:09,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:04:09,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:04:09,417 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:04:09,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:04:09,420 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:04:09,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:04:09,421 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:04:09,421 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:04:09,421 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:04:09,422 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:04:09,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:04:09,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:04:09,422 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:04:09,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:04:09,422 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:04:09,422 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:04:09,422 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:04:09,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:04:09,422 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:04:09,422 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:04:09,422 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:04:09,422 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 ! overflow) ) 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 -> bc4c50e18e47523e928ab5cb1be4f67a90a1d81a2df8ad805b262a1f43e6e6a4 [2025-04-29 11:04:09,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:04:09,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:04:09,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:04:09,685 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:04:09,686 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:04:09,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.c [2025-04-29 11:04:10,937 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/087a9ca87/4a738160f4224975a19da80cf5ff00b9/FLAGff3229949 [2025-04-29 11:04:11,153 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:04:11,153 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.c [2025-04-29 11:04:11,159 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:04:11,165 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/087a9ca87/4a738160f4224975a19da80cf5ff00b9/FLAGff3229949 [2025-04-29 11:04:11,987 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/087a9ca87/4a738160f4224975a19da80cf5ff00b9 [2025-04-29 11:04:11,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:04:11,990 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:04:11,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:04:11,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:04:11,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:04:11,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:04:11" (1/1) ... [2025-04-29 11:04:11,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc50b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:11, skipping insertion in model container [2025-04-29 11:04:11,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:04:11" (1/1) ... [2025-04-29 11:04:12,006 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:04:12,140 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:04:12,143 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:04:12,159 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:04:12,167 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:04:12,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12 WrapperNode [2025-04-29 11:04:12,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:04:12,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:04:12,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:04:12,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:04:12,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (1/1) ... [2025-04-29 11:04:12,174 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (1/1) ... [2025-04-29 11:04:12,186 INFO L138 Inliner]: procedures = 7, calls = 4, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 24 [2025-04-29 11:04:12,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:04:12,187 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:04:12,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:04:12,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:04:12,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (1/1) ... [2025-04-29 11:04:12,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (1/1) ... [2025-04-29 11:04:12,194 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (1/1) ... [2025-04-29 11:04:12,198 INFO L175 MemorySlicer]: No memory access in input program. [2025-04-29 11:04:12,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (1/1) ... [2025-04-29 11:04:12,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (1/1) ... [2025-04-29 11:04:12,202 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (1/1) ... [2025-04-29 11:04:12,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (1/1) ... [2025-04-29 11:04:12,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (1/1) ... [2025-04-29 11:04:12,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (1/1) ... [2025-04-29 11:04:12,207 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (1/1) ... [2025-04-29 11:04:12,209 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:04:12,211 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:04:12,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:04:12,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:04:12,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (1/1) ... [2025-04-29 11:04:12,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:04:12,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:04:12,235 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) [2025-04-29 11:04:12,237 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 [2025-04-29 11:04:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:04:12,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:04:12,283 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:04:12,284 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:04:12,355 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-04-29 11:04:12,355 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:04:12,360 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:04:12,361 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-29 11:04:12,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:04:12 BoogieIcfgContainer [2025-04-29 11:04:12,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:04:12,362 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:04:12,362 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:04:12,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:04:12,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:04:11" (1/3) ... [2025-04-29 11:04:12,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da989f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:04:12, skipping insertion in model container [2025-04-29 11:04:12,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:12" (2/3) ... [2025-04-29 11:04:12,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da989f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:04:12, skipping insertion in model container [2025-04-29 11:04:12,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:04:12" (3/3) ... [2025-04-29 11:04:12,367 INFO L128 eAbstractionObserver]: Analyzing ICFG benchmark52_polynomial.c [2025-04-29 11:04:12,375 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:04:12,377 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG benchmark52_polynomial.c that has 1 procedures, 19 locations, 22 edges, 1 initial locations, 1 loop locations, and 4 error locations. [2025-04-29 11:04:12,408 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:04:12,415 INFO L340 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;@5e76cabb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:04:12,415 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-29 11:04:12,417 INFO L278 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 18 states have internal predecessors, (22), 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) [2025-04-29 11:04:12,419 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-04-29 11:04:12,419 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:12,420 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-04-29 11:04:12,420 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-29 11:04:12,423 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:12,423 INFO L85 PathProgramCache]: Analyzing trace with hash 925671, now seen corresponding path program 1 times [2025-04-29 11:04:12,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:12,428 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006980234] [2025-04-29 11:04:12,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:12,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:12,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-29 11:04:12,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-29 11:04:12,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:12,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:12,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:12,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:12,494 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006980234] [2025-04-29 11:04:12,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006980234] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:04:12,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:04:12,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-29 11:04:12,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967769113] [2025-04-29 11:04:12,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:04:12,498 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-29 11:04:12,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:12,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-29 11:04:12,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-29 11:04:12,514 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2025-04-29 11:04:12,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:12,527 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2025-04-29 11:04:12,527 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-29 11:04:12,529 INFO L79 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-04-29 11:04:12,529 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:12,534 INFO L225 Difference]: With dead ends: 25 [2025-04-29 11:04:12,534 INFO L226 Difference]: Without dead ends: 11 [2025-04-29 11:04:12,537 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-29 11:04:12,539 INFO L437 NwaCegarLoop]: 18 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, 18 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 [2025-04-29 11:04:12,541 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:12,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2025-04-29 11:04:12,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2025-04-29 11:04:12,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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) [2025-04-29 11:04:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2025-04-29 11:04:12,560 INFO L79 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 4 [2025-04-29 11:04:12,560 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:12,561 INFO L485 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2025-04-29 11:04:12,561 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2025-04-29 11:04:12,561 INFO L278 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2025-04-29 11:04:12,561 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-04-29 11:04:12,561 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:12,561 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-04-29 11:04:12,562 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:04:12,562 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-29 11:04:12,563 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:12,563 INFO L85 PathProgramCache]: Analyzing trace with hash 28695845, now seen corresponding path program 1 times [2025-04-29 11:04:12,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:12,563 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3886837] [2025-04-29 11:04:12,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:12,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:12,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-29 11:04:12,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-29 11:04:12,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:12,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-04-29 11:04:12,571 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [800486356] [2025-04-29 11:04:12,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:12,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:04:12,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:04:12,574 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) [2025-04-29 11:04:12,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-29 11:04:12,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-29 11:04:12,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-29 11:04:12,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:12,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:12,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-29 11:04:12,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:04:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:12,646 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 11:04:12,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:12,646 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3886837] [2025-04-29 11:04:12,647 WARN L301 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-04-29 11:04:12,647 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800486356] [2025-04-29 11:04:12,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800486356] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:04:12,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:04:12,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:04:12,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284471611] [2025-04-29 11:04:12,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:04:12,648 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:04:12,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:12,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:04:12,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:04:12,649 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-04-29 11:04:12,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:12,671 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2025-04-29 11:04:12,671 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:04:12,671 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-04-29 11:04:12,671 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:12,671 INFO L225 Difference]: With dead ends: 15 [2025-04-29 11:04:12,671 INFO L226 Difference]: Without dead ends: 12 [2025-04-29 11:04:12,672 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:04:12,672 INFO L437 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:12,672 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:12,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-04-29 11:04:12,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2025-04-29 11:04:12,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2025-04-29 11:04:12,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2025-04-29 11:04:12,675 INFO L79 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2025-04-29 11:04:12,675 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:12,675 INFO L485 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2025-04-29 11:04:12,675 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-04-29 11:04:12,675 INFO L278 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2025-04-29 11:04:12,676 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-04-29 11:04:12,676 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:12,676 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:12,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-29 11:04:12,876 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:04:12,877 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-29 11:04:12,877 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:12,878 INFO L85 PathProgramCache]: Analyzing trace with hash 675173870, now seen corresponding path program 1 times [2025-04-29 11:04:12,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:12,878 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921210082] [2025-04-29 11:04:12,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:12,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:12,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-29 11:04:12,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-29 11:04:12,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:12,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-04-29 11:04:12,889 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1126322329] [2025-04-29 11:04:12,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:12,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:04:12,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:04:12,894 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) [2025-04-29 11:04:12,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-29 11:04:12,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-29 11:04:12,923 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-29 11:04:12,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:12,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:12,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-29 11:04:12,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:04:12,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:12,972 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:04:13,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:13,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:13,018 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921210082] [2025-04-29 11:04:13,018 WARN L301 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-04-29 11:04:13,018 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126322329] [2025-04-29 11:04:13,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126322329] provided 1 perfect and 1 imperfect interpolant sequences [2025-04-29 11:04:13,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-29 11:04:13,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-04-29 11:04:13,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906551288] [2025-04-29 11:04:13,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:04:13,019 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-29 11:04:13,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:13,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-29 11:04:13,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:04:13,020 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-04-29 11:04:13,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:13,053 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2025-04-29 11:04:13,054 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-29 11:04:13,054 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-04-29 11:04:13,054 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:13,054 INFO L225 Difference]: With dead ends: 12 [2025-04-29 11:04:13,054 INFO L226 Difference]: Without dead ends: 0 [2025-04-29 11:04:13,054 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-04-29 11:04:13,055 INFO L437 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:13,055 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:13,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-04-29 11:04:13,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-04-29 11:04:13,055 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) [2025-04-29 11:04:13,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-04-29 11:04:13,055 INFO L79 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2025-04-29 11:04:13,056 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:13,056 INFO L485 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-29 11:04:13,056 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-04-29 11:04:13,056 INFO L278 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-04-29 11:04:13,056 INFO L284 IsEmpty]: Finished isEmpty. No accepting run. [2025-04-29 11:04:13,058 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-04-29 11:04:13,059 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-04-29 11:04:13,059 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-04-29 11:04:13,059 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-04-29 11:04:13,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-29 11:04:13,263 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-04-29 11:04:13,265 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-29 11:04:13,266 INFO L312 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-04-29 11:04:13,276 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:04:13,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:04:13 BoogieIcfgContainer [2025-04-29 11:04:13,289 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:04:13,289 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:04:13,290 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:04:13,290 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:04:13,290 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:04:12" (3/4) ... [2025-04-29 11:04:13,292 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:04:13,296 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-04-29 11:04:13,296 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-29 11:04:13,296 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:04:13,348 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:04:13,348 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:04:13,348 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:04:13,349 INFO L158 Benchmark]: Toolchain (without parser) took 1359.01ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 40.1MB in the end (delta: 66.5MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-04-29 11:04:13,350 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:04:13,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.43ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 93.5MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:04:13,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.03ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 91.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:04:13,350 INFO L158 Benchmark]: Boogie Preprocessor took 23.30ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 90.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:04:13,350 INFO L158 Benchmark]: RCFGBuilder took 150.13ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 80.9MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:04:13,351 INFO L158 Benchmark]: TraceAbstraction took 926.67ms. Allocated memory is still 142.6MB. Free memory was 79.9MB in the beginning and 46.4MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-29 11:04:13,351 INFO L158 Benchmark]: Witness Printer took 59.04ms. Allocated memory is still 142.6MB. Free memory was 46.4MB in the beginning and 40.1MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:04:13,352 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.43ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 93.5MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.03ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 91.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.30ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 90.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 150.13ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 80.9MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 926.67ms. Allocated memory is still 142.6MB. Free memory was 79.9MB in the beginning and 46.4MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 59.04ms. Allocated memory is still 142.6MB. Free memory was 46.4MB in the beginning and 40.1MB in the end (delta: 6.3MB). 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 22 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 25 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 0 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/4 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 4 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((long long) i * i) < 2147483648) RESULT: Ultimate proved your program to be correct! [2025-04-29 11:04:13,368 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