./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-lit/hh2012-ex1b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/loop-lit/hh2012-ex1b.i -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 7ce79fe11836d82ec064e02fff135ad9866417774e7d276b3384b4d4dde863b5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 22:20:41,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 22:20:41,251 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-22 22:20:41,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 22:20:41,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 22:20:41,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 22:20:41,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 22:20:41,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 22:20:41,284 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 22:20:41,285 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 22:20:41,286 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 22:20:41,286 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 22:20:41,286 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 22:20:41,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 22:20:41,289 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 22:20:41,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 22:20:41,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 22:20:41,289 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 22:20:41,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 22:20:41,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 22:20:41,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 22:20:41,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 22:20:41,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 22:20:41,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 22:20:41,291 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 22:20:41,291 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-22 22:20:41,292 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 22:20:41,292 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 22:20:41,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 22:20:41,292 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 22:20:41,292 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 22:20:41,293 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 22:20:41,293 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 22:20:41,293 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 22:20:41,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 22:20:41,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 22:20:41,294 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 22:20:41,294 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 22:20:41,294 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 22:20:41,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 22:20:41,295 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 22:20:41,295 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 22:20:41,295 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 22:20:41,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 22:20:41,295 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ce79fe11836d82ec064e02fff135ad9866417774e7d276b3384b4d4dde863b5 [2024-11-22 22:20:41,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 22:20:41,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 22:20:41,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 22:20:41,519 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 22:20:41,519 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 22:20:41,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/hh2012-ex1b.i [2024-11-22 22:20:42,711 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 22:20:42,847 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 22:20:42,848 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/hh2012-ex1b.i [2024-11-22 22:20:42,853 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/407d0917f/0870245fa34e471781a7628e5cd62dbf/FLAGb25f86e2b [2024-11-22 22:20:42,863 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/407d0917f/0870245fa34e471781a7628e5cd62dbf [2024-11-22 22:20:42,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 22:20:42,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 22:20:42,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 22:20:42,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 22:20:42,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 22:20:42,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:20:42" (1/1) ... [2024-11-22 22:20:42,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e866ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:42, skipping insertion in model container [2024-11-22 22:20:42,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:20:42" (1/1) ... [2024-11-22 22:20:42,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 22:20:43,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 22:20:43,044 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 22:20:43,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 22:20:43,066 INFO L204 MainTranslator]: Completed translation [2024-11-22 22:20:43,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43 WrapperNode [2024-11-22 22:20:43,066 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 22:20:43,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 22:20:43,067 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 22:20:43,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 22:20:43,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43" (1/1) ... [2024-11-22 22:20:43,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43" (1/1) ... [2024-11-22 22:20:43,089 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2024-11-22 22:20:43,089 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 22:20:43,090 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 22:20:43,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 22:20:43,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 22:20:43,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43" (1/1) ... [2024-11-22 22:20:43,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43" (1/1) ... [2024-11-22 22:20:43,098 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43" (1/1) ... [2024-11-22 22:20:43,105 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]. [2024-11-22 22:20:43,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43" (1/1) ... [2024-11-22 22:20:43,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43" (1/1) ... [2024-11-22 22:20:43,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43" (1/1) ... [2024-11-22 22:20:43,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43" (1/1) ... [2024-11-22 22:20:43,114 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43" (1/1) ... [2024-11-22 22:20:43,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43" (1/1) ... [2024-11-22 22:20:43,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 22:20:43,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 22:20:43,116 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 22:20:43,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 22:20:43,116 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43" (1/1) ... [2024-11-22 22:20:43,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 22:20:43,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:20:43,147 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) [2024-11-22 22:20:43,149 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 [2024-11-22 22:20:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 22:20:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 22:20:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 22:20:43,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 22:20:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 22:20:43,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 22:20:43,263 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 22:20:43,265 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 22:20:43,370 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-22 22:20:43,370 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 22:20:43,386 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 22:20:43,386 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 22:20:43,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:20:43 BoogieIcfgContainer [2024-11-22 22:20:43,386 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 22:20:43,388 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 22:20:43,388 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 22:20:43,390 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 22:20:43,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:20:42" (1/3) ... [2024-11-22 22:20:43,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f691e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:20:43, skipping insertion in model container [2024-11-22 22:20:43,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:20:43" (2/3) ... [2024-11-22 22:20:43,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f691e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:20:43, skipping insertion in model container [2024-11-22 22:20:43,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:20:43" (3/3) ... [2024-11-22 22:20:43,392 INFO L112 eAbstractionObserver]: Analyzing ICFG hh2012-ex1b.i [2024-11-22 22:20:43,405 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 22:20:43,405 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-22 22:20:43,444 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 22:20:43,452 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;@69adfe3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 22:20:43,452 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-22 22:20:43,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 24 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 22:20:43,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-22 22:20:43,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:20:43,463 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-22 22:20:43,463 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:20:43,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:20:43,468 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2024-11-22 22:20:43,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:20:43,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638965773] [2024-11-22 22:20:43,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:20:43,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:20:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:20:43,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:20:43,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:20:43,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638965773] [2024-11-22 22:20:43,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638965773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:20:43,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:20:43,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:20:43,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522043755] [2024-11-22 22:20:43,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:20:43,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:20:43,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:20:43,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:20:43,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:20:43,672 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 24 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2024-11-22 22:20:43,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:20:43,718 INFO L93 Difference]: Finished difference Result 58 states and 82 transitions. [2024-11-22 22:20:43,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:20:43,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2024-11-22 22:20:43,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:20:43,724 INFO L225 Difference]: With dead ends: 58 [2024-11-22 22:20:43,725 INFO L226 Difference]: Without dead ends: 24 [2024-11-22 22:20:43,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:20:43,729 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:20:43,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 78 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:20:43,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-22 22:20:43,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-22 22:20:43,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:20:43,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-11-22 22:20:43,754 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 5 [2024-11-22 22:20:43,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:20:43,755 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-11-22 22:20:43,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2024-11-22 22:20:43,755 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-11-22 22:20:43,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-22 22:20:43,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:20:43,756 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:20:43,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 22:20:43,756 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:20:43,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:20:43,757 INFO L85 PathProgramCache]: Analyzing trace with hash 129489441, now seen corresponding path program 1 times [2024-11-22 22:20:43,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:20:43,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425161698] [2024-11-22 22:20:43,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:20:43,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:20:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:20:43,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:20:43,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:20:43,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425161698] [2024-11-22 22:20:43,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425161698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:20:43,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007560487] [2024-11-22 22:20:43,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:20:43,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:20:43,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:20:43,866 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) [2024-11-22 22:20:43,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 22:20:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:20:43,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:20:43,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:20:43,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:20:43,968 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:20:43,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007560487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:20:43,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:20:43,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-22 22:20:43,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516351100] [2024-11-22 22:20:43,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:20:43,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 22:20:43,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:20:43,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 22:20:43,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:20:43,973 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 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) [2024-11-22 22:20:44,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:20:44,006 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-11-22 22:20:44,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 22:20:44,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 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) Word has length 13 [2024-11-22 22:20:44,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:20:44,007 INFO L225 Difference]: With dead ends: 24 [2024-11-22 22:20:44,008 INFO L226 Difference]: Without dead ends: 23 [2024-11-22 22:20:44,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:20:44,010 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 13 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:20:44,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 42 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:20:44,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-22 22:20:44,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-22 22:20:44,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:20:44,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2024-11-22 22:20:44,014 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2024-11-22 22:20:44,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:20:44,015 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2024-11-22 22:20:44,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 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) [2024-11-22 22:20:44,016 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2024-11-22 22:20:44,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-22 22:20:44,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:20:44,017 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:20:44,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 22:20:44,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:20:44,218 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:20:44,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:20:44,218 INFO L85 PathProgramCache]: Analyzing trace with hash -280794571, now seen corresponding path program 1 times [2024-11-22 22:20:44,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:20:44,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387142566] [2024-11-22 22:20:44,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:20:44,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:20:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:20:44,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 22:20:44,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:20:44,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387142566] [2024-11-22 22:20:44,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387142566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:20:44,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:20:44,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:20:44,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388420699] [2024-11-22 22:20:44,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:20:44,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 22:20:44,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:20:44,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 22:20:44,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:20:44,275 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-22 22:20:44,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:20:44,281 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2024-11-22 22:20:44,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 22:20:44,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 14 [2024-11-22 22:20:44,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:20:44,282 INFO L225 Difference]: With dead ends: 23 [2024-11-22 22:20:44,282 INFO L226 Difference]: Without dead ends: 22 [2024-11-22 22:20:44,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:20:44,283 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:20:44,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:20:44,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-22 22:20:44,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2024-11-22 22:20:44,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:20:44,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2024-11-22 22:20:44,289 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 14 [2024-11-22 22:20:44,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:20:44,289 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-22 22:20:44,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-22 22:20:44,289 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-11-22 22:20:44,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-22 22:20:44,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:20:44,291 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:20:44,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 22:20:44,291 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:20:44,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:20:44,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1705625761, now seen corresponding path program 1 times [2024-11-22 22:20:44,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:20:44,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643011979] [2024-11-22 22:20:44,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:20:44,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:20:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:20:44,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:20:44,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:20:44,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643011979] [2024-11-22 22:20:44,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643011979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:20:44,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850203122] [2024-11-22 22:20:44,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:20:44,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:20:44,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:20:44,387 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) [2024-11-22 22:20:44,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 22:20:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:20:44,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 22:20:44,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:20:44,437 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:20:44,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:20:44,483 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:20:44,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850203122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:20:44,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:20:44,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 22:20:44,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213422143] [2024-11-22 22:20:44,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:20:44,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 22:20:44,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:20:44,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 22:20:44,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:20:44,490 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 22:20:44,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:20:44,539 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2024-11-22 22:20:44,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 22:20:44,539 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 19 [2024-11-22 22:20:44,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:20:44,540 INFO L225 Difference]: With dead ends: 46 [2024-11-22 22:20:44,540 INFO L226 Difference]: Without dead ends: 28 [2024-11-22 22:20:44,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:20:44,541 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:20:44,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:20:44,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-22 22:20:44,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-22 22:20:44,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-22 22:20:44,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2024-11-22 22:20:44,552 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 19 [2024-11-22 22:20:44,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:20:44,553 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2024-11-22 22:20:44,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 22:20:44,554 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2024-11-22 22:20:44,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-22 22:20:44,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:20:44,555 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:20:44,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 22:20:44,755 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 [2024-11-22 22:20:44,756 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:20:44,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:20:44,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1627588241, now seen corresponding path program 2 times [2024-11-22 22:20:44,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:20:44,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131423047] [2024-11-22 22:20:44,756 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:20:44,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:20:44,764 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 22:20:44,764 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:20:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-22 22:20:44,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:20:44,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131423047] [2024-11-22 22:20:44,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131423047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:20:44,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:20:44,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:20:44,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071679785] [2024-11-22 22:20:44,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:20:44,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:20:44,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:20:44,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:20:44,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:20:44,807 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:20:44,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:20:44,824 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2024-11-22 22:20:44,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:20:44,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2024-11-22 22:20:44,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:20:44,826 INFO L225 Difference]: With dead ends: 48 [2024-11-22 22:20:44,826 INFO L226 Difference]: Without dead ends: 46 [2024-11-22 22:20:44,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:20:44,827 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:20:44,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 50 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:20:44,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-22 22:20:44,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-22 22:20:44,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 35 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-22 22:20:44,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2024-11-22 22:20:44,836 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 35 [2024-11-22 22:20:44,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:20:44,836 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2024-11-22 22:20:44,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:20:44,836 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2024-11-22 22:20:44,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-22 22:20:44,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:20:44,839 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:20:44,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 22:20:44,840 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:20:44,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:20:44,840 INFO L85 PathProgramCache]: Analyzing trace with hash -2037315562, now seen corresponding path program 1 times [2024-11-22 22:20:44,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:20:44,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408826662] [2024-11-22 22:20:44,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:20:44,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:20:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:20:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 44 proven. 15 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-22 22:20:45,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:20:45,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408826662] [2024-11-22 22:20:45,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408826662] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:20:45,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621323075] [2024-11-22 22:20:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:20:45,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:20:45,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:20:45,079 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) [2024-11-22 22:20:45,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 22:20:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:20:45,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 22:20:45,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:20:45,187 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 116 proven. 15 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-22 22:20:45,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:20:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 44 proven. 15 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-22 22:20:45,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621323075] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:20:45,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:20:45,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-22 22:20:45,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566265011] [2024-11-22 22:20:45,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:20:45,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 22:20:45,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:20:45,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 22:20:45,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-22 22:20:45,325 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 7 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-22 22:20:45,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:20:45,401 INFO L93 Difference]: Finished difference Result 108 states and 140 transitions. [2024-11-22 22:20:45,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 22:20:45,403 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 7 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 75 [2024-11-22 22:20:45,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:20:45,404 INFO L225 Difference]: With dead ends: 108 [2024-11-22 22:20:45,404 INFO L226 Difference]: Without dead ends: 78 [2024-11-22 22:20:45,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-22 22:20:45,406 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:20:45,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:20:45,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-22 22:20:45,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-22 22:20:45,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 58 states have (on average 1.0689655172413792) internal successors, (62), 59 states have internal predecessors, (62), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 22:20:45,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 96 transitions. [2024-11-22 22:20:45,420 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 96 transitions. Word has length 75 [2024-11-22 22:20:45,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:20:45,420 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 96 transitions. [2024-11-22 22:20:45,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 7 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-22 22:20:45,420 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2024-11-22 22:20:45,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 22:20:45,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:20:45,422 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:20:45,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 22:20:45,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:20:45,623 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:20:45,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:20:45,624 INFO L85 PathProgramCache]: Analyzing trace with hash 338856918, now seen corresponding path program 2 times [2024-11-22 22:20:45,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:20:45,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869240466] [2024-11-22 22:20:45,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:20:45,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:20:45,655 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:20:45,655 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:20:45,798 INFO L134 CoverageAnalysis]: Checked inductivity of 941 backedges. 0 proven. 215 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2024-11-22 22:20:45,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:20:45,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869240466] [2024-11-22 22:20:45,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869240466] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:20:45,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641165976] [2024-11-22 22:20:45,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:20:45,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:20:45,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:20:45,803 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:20:45,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 22:20:45,865 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:20:45,866 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:20:45,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 22:20:45,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:20:46,064 INFO L134 CoverageAnalysis]: Checked inductivity of 941 backedges. 492 proven. 91 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2024-11-22 22:20:46,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:20:46,422 INFO L134 CoverageAnalysis]: Checked inductivity of 941 backedges. 212 proven. 91 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2024-11-22 22:20:46,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641165976] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:20:46,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:20:46,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 36 [2024-11-22 22:20:46,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891523564] [2024-11-22 22:20:46,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:20:46,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-22 22:20:46,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:20:46,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-22 22:20:46,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=980, Unknown=0, NotChecked=0, Total=1260 [2024-11-22 22:20:46,426 INFO L87 Difference]: Start difference. First operand 78 states and 96 transitions. Second operand has 36 states, 36 states have (on average 2.25) internal successors, (81), 36 states have internal predecessors, (81), 17 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 17 states have call predecessors, (25), 17 states have call successors, (25) [2024-11-22 22:20:47,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:20:47,406 INFO L93 Difference]: Finished difference Result 187 states and 248 transitions. [2024-11-22 22:20:47,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-22 22:20:47,406 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.25) internal successors, (81), 36 states have internal predecessors, (81), 17 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 17 states have call predecessors, (25), 17 states have call successors, (25) Word has length 139 [2024-11-22 22:20:47,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:20:47,408 INFO L225 Difference]: With dead ends: 187 [2024-11-22 22:20:47,408 INFO L226 Difference]: Without dead ends: 141 [2024-11-22 22:20:47,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2338 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1312, Invalid=7430, Unknown=0, NotChecked=0, Total=8742 [2024-11-22 22:20:47,411 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:20:47,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 184 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:20:47,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-22 22:20:47,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-22 22:20:47,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 106 states have (on average 1.028301886792453) internal successors, (109), 106 states have internal predecessors, (109), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-22 22:20:47,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 175 transitions. [2024-11-22 22:20:47,429 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 175 transitions. Word has length 139 [2024-11-22 22:20:47,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:20:47,429 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 175 transitions. [2024-11-22 22:20:47,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.25) internal successors, (81), 36 states have internal predecessors, (81), 17 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 17 states have call predecessors, (25), 17 states have call successors, (25) [2024-11-22 22:20:47,430 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 175 transitions. [2024-11-22 22:20:47,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-22 22:20:47,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:20:47,436 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:20:47,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 22:20:47,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:20:47,637 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:20:47,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:20:47,637 INFO L85 PathProgramCache]: Analyzing trace with hash 979818410, now seen corresponding path program 1 times [2024-11-22 22:20:47,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:20:47,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717281213] [2024-11-22 22:20:47,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:20:47,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:20:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:20:47,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3918 backedges. 935 proven. 0 refuted. 0 times theorem prover too weak. 2983 trivial. 0 not checked. [2024-11-22 22:20:47,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:20:47,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717281213] [2024-11-22 22:20:47,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717281213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:20:47,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:20:47,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:20:47,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458288801] [2024-11-22 22:20:47,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:20:47,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:20:47,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:20:47,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:20:47,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:20:47,746 INFO L87 Difference]: Start difference. First operand 141 states and 175 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 22:20:47,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:20:47,757 INFO L93 Difference]: Finished difference Result 141 states and 175 transitions. [2024-11-22 22:20:47,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:20:47,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 268 [2024-11-22 22:20:47,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:20:47,759 INFO L225 Difference]: With dead ends: 141 [2024-11-22 22:20:47,759 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 22:20:47,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:20:47,760 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:20:47,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:20:47,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 22:20:47,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 22:20:47,761 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) [2024-11-22 22:20:47,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 22:20:47,761 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 268 [2024-11-22 22:20:47,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:20:47,762 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 22:20:47,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 22:20:47,762 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 22:20:47,762 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 22:20:47,764 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-22 22:20:47,764 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-22 22:20:47,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-22 22:20:47,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-22 22:20:47,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 22:20:47,768 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2024-11-22 22:20:47,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 22:20:48,076 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 22:20:48,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:20:48 BoogieIcfgContainer [2024-11-22 22:20:48,090 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 22:20:48,090 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 22:20:48,090 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 22:20:48,090 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 22:20:48,091 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:20:43" (3/4) ... [2024-11-22 22:20:48,093 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 22:20:48,096 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-22 22:20:48,098 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-22 22:20:48,098 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-22 22:20:48,098 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-22 22:20:48,098 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 22:20:48,158 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 22:20:48,158 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 22:20:48,158 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 22:20:48,159 INFO L158 Benchmark]: Toolchain (without parser) took 5293.21ms. Allocated memory was 192.9MB in the beginning and 243.3MB in the end (delta: 50.3MB). Free memory was 119.1MB in the beginning and 125.8MB in the end (delta: -6.7MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2024-11-22 22:20:48,159 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 192.9MB. Free memory is still 148.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 22:20:48,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.93ms. Allocated memory is still 192.9MB. Free memory was 118.8MB in the beginning and 107.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-22 22:20:48,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.97ms. Allocated memory is still 192.9MB. Free memory was 107.0MB in the beginning and 105.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 22:20:48,160 INFO L158 Benchmark]: Boogie Preprocessor took 25.45ms. Allocated memory is still 192.9MB. Free memory was 105.5MB in the beginning and 104.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 22:20:48,160 INFO L158 Benchmark]: RCFGBuilder took 270.90ms. Allocated memory is still 192.9MB. Free memory was 103.7MB in the beginning and 154.3MB in the end (delta: -50.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-22 22:20:48,160 INFO L158 Benchmark]: TraceAbstraction took 4701.99ms. Allocated memory was 192.9MB in the beginning and 243.3MB in the end (delta: 50.3MB). Free memory was 153.2MB in the beginning and 131.0MB in the end (delta: 22.1MB). Peak memory consumption was 137.0MB. Max. memory is 16.1GB. [2024-11-22 22:20:48,160 INFO L158 Benchmark]: Witness Printer took 68.39ms. Allocated memory is still 243.3MB. Free memory was 130.0MB in the beginning and 125.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 22:20:48,161 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 192.9MB. Free memory is still 148.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.93ms. Allocated memory is still 192.9MB. Free memory was 118.8MB in the beginning and 107.0MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.97ms. Allocated memory is still 192.9MB. Free memory was 107.0MB in the beginning and 105.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.45ms. Allocated memory is still 192.9MB. Free memory was 105.5MB in the beginning and 104.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 270.90ms. Allocated memory is still 192.9MB. Free memory was 103.7MB in the beginning and 154.3MB in the end (delta: -50.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4701.99ms. Allocated memory was 192.9MB in the beginning and 243.3MB in the end (delta: 50.3MB). Free memory was 153.2MB in the beginning and 131.0MB in the end (delta: 22.1MB). Peak memory consumption was 137.0MB. Max. memory is 16.1GB. * Witness Printer took 68.39ms. Allocated memory is still 243.3MB. Free memory was 130.0MB in the beginning and 125.8MB in the end (delta: 4.2MB). 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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, 29 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 8, TraceHistogramMax: 33, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 664 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 507 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 436 IncrementalHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 157 mSDtfsCounter, 436 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 565 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2435 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=7, InterpolantAutomatonStates: 107, 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, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 814 NumberOfCodeBlocks, 790 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1032 ConstructedInterpolants, 0 QuantifiedInterpolants, 1590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 541 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 7018/7465 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 4 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (((((i == 0) && (j == 0)) || (((1 <= i) && (1 <= j)) && (i <= 99))) || (((1 <= i) && (i <= 99)) && (j == 0))) || ((i == 0) && (1 <= j))) RESULT: Ultimate proved your program to be correct! [2024-11-22 22:20:48,175 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