./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound100.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 1f6c2207c7fc8e707b9260ef6afb25be5d17e51cbd8001e46a4b7aba8375babe --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 17:28:13,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 17:28:13,171 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 17:28:13,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 17:28:13,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 17:28:13,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 17:28:13,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 17:28:13,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 17:28:13,200 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 17:28:13,200 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 17:28:13,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 17:28:13,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 17:28:13,202 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 17:28:13,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 17:28:13,202 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 17:28:13,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 17:28:13,203 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 17:28:13,204 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 17:28:13,204 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 17:28:13,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 17:28:13,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 17:28:13,208 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 17:28:13,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 17:28:13,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 17:28:13,208 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 17:28:13,209 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 17:28:13,209 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 17:28:13,209 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 17:28:13,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 17:28:13,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 17:28:13,210 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 17:28:13,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 17:28:13,211 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 17:28:13,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 17:28:13,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:28:13,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 17:28:13,216 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 17:28:13,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 17:28:13,216 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 17:28:13,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 17:28:13,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 17:28:13,218 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 17:28:13,218 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 17:28:13,218 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 17:28:13,218 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f6c2207c7fc8e707b9260ef6afb25be5d17e51cbd8001e46a4b7aba8375babe [2024-11-12 17:28:13,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 17:28:13,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 17:28:13,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 17:28:13,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 17:28:13,510 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 17:28:13,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound100.c [2024-11-12 17:28:14,997 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 17:28:15,173 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 17:28:15,174 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound100.c [2024-11-12 17:28:15,183 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6ee3231d/77a28528a9bd43f991749e36ccc2376b/FLAG3509d6301 [2024-11-12 17:28:15,195 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6ee3231d/77a28528a9bd43f991749e36ccc2376b [2024-11-12 17:28:15,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 17:28:15,199 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 17:28:15,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 17:28:15,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 17:28:15,206 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 17:28:15,206 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,207 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1898f4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15, skipping insertion in model container [2024-11-12 17:28:15,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,224 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 17:28:15,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:28:15,404 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 17:28:15,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:28:15,449 INFO L204 MainTranslator]: Completed translation [2024-11-12 17:28:15,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15 WrapperNode [2024-11-12 17:28:15,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 17:28:15,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 17:28:15,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 17:28:15,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 17:28:15,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,482 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2024-11-12 17:28:15,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 17:28:15,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 17:28:15,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 17:28:15,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 17:28:15,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,503 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,519 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 17:28:15,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,534 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 17:28:15,535 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 17:28:15,535 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 17:28:15,535 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 17:28:15,536 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15" (1/1) ... [2024-11-12 17:28:15,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:28:15,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:28:15,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 17:28:15,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 17:28:15,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 17:28:15,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 17:28:15,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 17:28:15,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 17:28:15,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 17:28:15,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 17:28:15,672 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 17:28:15,674 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 17:28:15,824 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-12 17:28:15,824 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 17:28:15,840 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 17:28:15,842 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 17:28:15,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:28:15 BoogieIcfgContainer [2024-11-12 17:28:15,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 17:28:15,846 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 17:28:15,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 17:28:15,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 17:28:15,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:28:15" (1/3) ... [2024-11-12 17:28:15,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37581c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:28:15, skipping insertion in model container [2024-11-12 17:28:15,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:15" (2/3) ... [2024-11-12 17:28:15,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37581c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:28:15, skipping insertion in model container [2024-11-12 17:28:15,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:28:15" (3/3) ... [2024-11-12 17:28:15,856 INFO L112 eAbstractionObserver]: Analyzing ICFG geo2-ll_unwindbound100.c [2024-11-12 17:28:15,875 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 17:28:15,875 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 17:28:15,953 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 17:28:15,961 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;@45bc9337, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 17:28:15,965 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-12 17:28:15,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:28:15,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-12 17:28:15,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:28:15,976 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-12 17:28:15,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 17:28:15,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:28:15,984 INFO L85 PathProgramCache]: Analyzing trace with hash 925668, now seen corresponding path program 1 times [2024-11-12 17:28:15,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:28:15,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68958479] [2024-11-12 17:28:15,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:15,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:28:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:28:16,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:28:16,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68958479] [2024-11-12 17:28:16,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68958479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:28:16,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:28:16,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:28:16,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127884727] [2024-11-12 17:28:16,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:28:16,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 17:28:16,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:28:16,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 17:28:16,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:28:16,280 INFO L87 Difference]: Start difference. First operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2024-11-12 17:28:16,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:28:16,343 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2024-11-12 17:28:16,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 17:28:16,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 [2024-11-12 17:28:16,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:28:16,353 INFO L225 Difference]: With dead ends: 38 [2024-11-12 17:28:16,354 INFO L226 Difference]: Without dead ends: 13 [2024-11-12 17:28:16,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:28:16,363 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 20 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:28:16,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 28 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:28:16,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-12 17:28:16,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-12 17:28:16,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:28:16,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-12 17:28:16,406 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2024-11-12 17:28:16,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:28:16,407 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-12 17:28:16,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2024-11-12 17:28:16,408 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-12 17:28:16,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-12 17:28:16,408 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:28:16,409 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 17:28:16,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 17:28:16,410 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 17:28:16,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:28:16,411 INFO L85 PathProgramCache]: Analyzing trace with hash 28695749, now seen corresponding path program 1 times [2024-11-12 17:28:16,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:28:16,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695546930] [2024-11-12 17:28:16,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:16,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:28:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:16,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:28:16,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:28:16,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695546930] [2024-11-12 17:28:16,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695546930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:28:16,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:28:16,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:28:16,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119466666] [2024-11-12 17:28:16,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:28:16,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 17:28:16,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:28:16,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 17:28:16,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:28:16,510 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) 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) [2024-11-12 17:28:16,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:28:16,538 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2024-11-12 17:28:16,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:28:16,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) 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 [2024-11-12 17:28:16,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:28:16,539 INFO L225 Difference]: With dead ends: 18 [2024-11-12 17:28:16,539 INFO L226 Difference]: Without dead ends: 17 [2024-11-12 17:28:16,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:28:16,541 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:28:16,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:28:16,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-12 17:28:16,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2024-11-12 17:28:16,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:28:16,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-11-12 17:28:16,552 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2024-11-12 17:28:16,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:28:16,553 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-11-12 17:28:16,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) 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) [2024-11-12 17:28:16,553 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-11-12 17:28:16,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-12 17:28:16,555 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:28:16,555 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:28:16,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 17:28:16,556 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 17:28:16,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:28:16,558 INFO L85 PathProgramCache]: Analyzing trace with hash 610940254, now seen corresponding path program 1 times [2024-11-12 17:28:16,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:28:16,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106488235] [2024-11-12 17:28:16,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:16,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:28:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:16,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:28:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:28:16,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:28:16,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106488235] [2024-11-12 17:28:16,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106488235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:28:16,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955285406] [2024-11-12 17:28:16,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:16,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:16,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:28:16,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:28:16,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 17:28:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:16,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 17:28:16,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:28:16,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:28:16,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:28:17,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:28:17,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955285406] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:28:17,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:28:17,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 9 [2024-11-12 17:28:17,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239786120] [2024-11-12 17:28:17,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:28:17,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 17:28:17,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:28:17,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 17:28:17,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-12 17:28:17,012 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-12 17:28:17,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:28:17,187 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2024-11-12 17:28:17,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 17:28:17,188 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 15 [2024-11-12 17:28:17,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:28:17,190 INFO L225 Difference]: With dead ends: 47 [2024-11-12 17:28:17,191 INFO L226 Difference]: Without dead ends: 46 [2024-11-12 17:28:17,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-11-12 17:28:17,193 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 28 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:28:17,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 51 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:28:17,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-12 17:28:17,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-12 17:28:17,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.027027027027027) internal successors, (38), 37 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-12 17:28:17,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2024-11-12 17:28:17,211 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 15 [2024-11-12 17:28:17,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:28:17,211 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2024-11-12 17:28:17,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-12 17:28:17,213 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2024-11-12 17:28:17,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-12 17:28:17,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:28:17,215 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-11-12 17:28:17,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 17:28:17,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:17,420 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 17:28:17,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:28:17,421 INFO L85 PathProgramCache]: Analyzing trace with hash -529761367, now seen corresponding path program 2 times [2024-11-12 17:28:17,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:28:17,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845678239] [2024-11-12 17:28:17,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:17,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:28:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:17,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:28:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:17,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 17:28:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:17,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-12 17:28:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:17,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-12 17:28:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:17,782 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 17:28:17,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:28:17,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845678239] [2024-11-12 17:28:17,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845678239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:28:17,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599686827] [2024-11-12 17:28:17,785 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:28:17,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:17,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:28:17,788 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) [2024-11-12 17:28:17,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 17:28:17,861 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:28:17,861 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:28:17,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-12 17:28:17,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:28:17,947 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:28:17,947 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:28:18,162 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 17:28:18,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599686827] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:28:18,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:28:18,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 21 [2024-11-12 17:28:18,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943358474] [2024-11-12 17:28:18,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:28:18,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-12 17:28:18,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:28:18,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-12 17:28:18,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-12 17:28:18,167 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-12 17:28:18,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:28:18,662 INFO L93 Difference]: Finished difference Result 107 states and 112 transitions. [2024-11-12 17:28:18,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-12 17:28:18,663 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 45 [2024-11-12 17:28:18,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:28:18,665 INFO L225 Difference]: With dead ends: 107 [2024-11-12 17:28:18,667 INFO L226 Difference]: Without dead ends: 106 [2024-11-12 17:28:18,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2024-11-12 17:28:18,669 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 85 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:28:18,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 105 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:28:18,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-12 17:28:18,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-12 17:28:18,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-12 17:28:18,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2024-11-12 17:28:18,693 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 45 [2024-11-12 17:28:18,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:28:18,694 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2024-11-12 17:28:18,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-12 17:28:18,695 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2024-11-12 17:28:18,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-12 17:28:18,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:28:18,698 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2024-11-12 17:28:18,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 17:28:18,898 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,SelfDestructingSolverStorable3 [2024-11-12 17:28:18,899 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 17:28:18,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:28:18,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1153550209, now seen corresponding path program 3 times [2024-11-12 17:28:18,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:28:18,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886897231] [2024-11-12 17:28:18,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:18,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:28:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:19,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:28:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:19,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 17:28:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:19,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-12 17:28:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:19,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-12 17:28:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:19,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-12 17:28:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:19,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 17:28:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:19,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 17:28:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:19,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 17:28:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:19,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-12 17:28:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:19,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-12 17:28:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:19,641 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-12 17:28:19,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:28:19,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886897231] [2024-11-12 17:28:19,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886897231] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:28:19,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127139685] [2024-11-12 17:28:19,645 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 17:28:19,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:19,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:28:19,648 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) [2024-11-12 17:28:19,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 17:28:19,720 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-12 17:28:19,721 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:28:19,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 17:28:19,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:28:19,811 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2024-11-12 17:28:19,811 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:28:19,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127139685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:28:19,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:28:19,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [23] total 26 [2024-11-12 17:28:19,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832744517] [2024-11-12 17:28:19,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:28:19,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:28:19,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:28:19,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:28:19,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2024-11-12 17:28:19,813 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:28:19,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:28:19,883 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2024-11-12 17:28:19,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:28:19,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 105 [2024-11-12 17:28:19,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:28:19,885 INFO L225 Difference]: With dead ends: 106 [2024-11-12 17:28:19,885 INFO L226 Difference]: Without dead ends: 0 [2024-11-12 17:28:19,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=619, Unknown=0, NotChecked=0, Total=812 [2024-11-12 17:28:19,887 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:28:19,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 19 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:28:19,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-12 17:28:19,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-12 17:28:19,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:28:19,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-12 17:28:19,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 105 [2024-11-12 17:28:19,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:28:19,889 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 17:28:19,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:28:19,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-12 17:28:19,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-12 17:28:19,892 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-12 17:28:19,892 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-12 17:28:19,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 17:28:20,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:20,096 INFO L421 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-11-12 17:28:20,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-12 17:28:20,278 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 17:28:20,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 05:28:20 BoogieIcfgContainer [2024-11-12 17:28:20,298 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 17:28:20,298 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 17:28:20,299 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 17:28:20,299 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 17:28:20,299 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:28:15" (3/4) ... [2024-11-12 17:28:20,301 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 17:28:20,306 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-12 17:28:20,310 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-12 17:28:20,311 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-12 17:28:20,311 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-12 17:28:20,311 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-12 17:28:20,400 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 17:28:20,400 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 17:28:20,401 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 17:28:20,401 INFO L158 Benchmark]: Toolchain (without parser) took 5202.69ms. Allocated memory was 159.4MB in the beginning and 228.6MB in the end (delta: 69.2MB). Free memory was 105.2MB in the beginning and 138.7MB in the end (delta: -33.5MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2024-11-12 17:28:20,402 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 159.4MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 17:28:20,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.70ms. Allocated memory is still 159.4MB. Free memory was 104.8MB in the beginning and 92.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 17:28:20,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.30ms. Allocated memory is still 159.4MB. Free memory was 92.6MB in the beginning and 90.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 17:28:20,404 INFO L158 Benchmark]: Boogie Preprocessor took 51.18ms. Allocated memory is still 159.4MB. Free memory was 90.9MB in the beginning and 89.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 17:28:20,404 INFO L158 Benchmark]: RCFGBuilder took 309.33ms. Allocated memory is still 159.4MB. Free memory was 89.2MB in the beginning and 77.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-12 17:28:20,405 INFO L158 Benchmark]: TraceAbstraction took 4451.68ms. Allocated memory was 159.4MB in the beginning and 228.6MB in the end (delta: 69.2MB). Free memory was 77.5MB in the beginning and 143.9MB in the end (delta: -66.4MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2024-11-12 17:28:20,405 INFO L158 Benchmark]: Witness Printer took 102.19ms. Allocated memory is still 228.6MB. Free memory was 143.9MB in the beginning and 138.7MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 17:28:20,406 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 159.4MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.70ms. Allocated memory is still 159.4MB. Free memory was 104.8MB in the beginning and 92.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.30ms. Allocated memory is still 159.4MB. Free memory was 92.6MB in the beginning and 90.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.18ms. Allocated memory is still 159.4MB. Free memory was 90.9MB in the beginning and 89.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 309.33ms. Allocated memory is still 159.4MB. Free memory was 89.2MB in the beginning and 77.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4451.68ms. Allocated memory was 159.4MB in the beginning and 228.6MB in the end (delta: 69.2MB). Free memory was 77.5MB in the beginning and 143.9MB in the end (delta: -66.4MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Witness Printer took 102.19ms. Allocated memory is still 228.6MB. Free memory was 143.9MB in the beginning and 138.7MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. 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: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: 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 2 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 5, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 141 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 227 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 177 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 192 IncrementalHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 50 mSDtfsCounter, 192 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 320 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=4, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 339 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 821 SizeOfPredicates, 13 NumberOfNonLiveVariables, 249 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 708/1185 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((0 <= counter) && (counter <= 100)) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (0 <= counter) Ensures: ((0 <= counter) && (counter == \old(counter))) RESULT: Ultimate proved your program to be correct! [2024-11-12 17:28:20,435 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