./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound20.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 cc20d196113d3ae541f6b6d9413b3adf505f83f475b90cd277ec788090ea4b3d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 13:25:03,007 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 13:25:03,087 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 13:25:03,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 13:25:03,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 13:25:03,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 13:25:03,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 13:25:03,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 13:25:03,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 13:25:03,130 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 13:25:03,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 13:25:03,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 13:25:03,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 13:25:03,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 13:25:03,133 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 13:25:03,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 13:25:03,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 13:25:03,134 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 13:25:03,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 13:25:03,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 13:25:03,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 13:25:03,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 13:25:03,137 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 13:25:03,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 13:25:03,137 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 13:25:03,138 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 13:25:03,138 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 13:25:03,138 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 13:25:03,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 13:25:03,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 13:25:03,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 13:25:03,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 13:25:03,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 13:25:03,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 13:25:03,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:25:03,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 13:25:03,144 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 13:25:03,144 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 13:25:03,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 13:25:03,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 13:25:03,144 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 13:25:03,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 13:25:03,146 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 13:25:03,146 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 13:25:03,146 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc20d196113d3ae541f6b6d9413b3adf505f83f475b90cd277ec788090ea4b3d [2024-10-13 13:25:03,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 13:25:03,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 13:25:03,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 13:25:03,446 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 13:25:03,448 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 13:25:03,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound20.i [2024-10-13 13:25:04,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 13:25:05,123 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 13:25:05,124 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound20.i [2024-10-13 13:25:05,131 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ce321f75/e7b5f7ed8eee4f04a15f60fce70aa5ed/FLAG3a62d7203 [2024-10-13 13:25:05,509 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ce321f75/e7b5f7ed8eee4f04a15f60fce70aa5ed [2024-10-13 13:25:05,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 13:25:05,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 13:25:05,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 13:25:05,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 13:25:05,522 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 13:25:05,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32998090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05, skipping insertion in model container [2024-10-13 13:25:05,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,550 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 13:25:05,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:25:05,750 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 13:25:05,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:25:05,793 INFO L204 MainTranslator]: Completed translation [2024-10-13 13:25:05,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05 WrapperNode [2024-10-13 13:25:05,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 13:25:05,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 13:25:05,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 13:25:05,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 13:25:05,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,822 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2024-10-13 13:25:05,823 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 13:25:05,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 13:25:05,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 13:25:05,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 13:25:05,833 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,835 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,845 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]. [2024-10-13 13:25:05,845 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,845 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 13:25:05,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 13:25:05,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 13:25:05,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 13:25:05,858 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05" (1/1) ... [2024-10-13 13:25:05,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:25:05,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:25:05,892 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) [2024-10-13 13:25:05,894 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 [2024-10-13 13:25:05,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 13:25:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 13:25:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 13:25:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 13:25:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 13:25:05,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 13:25:06,011 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 13:25:06,013 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 13:25:06,194 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-10-13 13:25:06,194 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 13:25:06,224 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 13:25:06,224 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 13:25:06,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:06 BoogieIcfgContainer [2024-10-13 13:25:06,225 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 13:25:06,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 13:25:06,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 13:25:06,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 13:25:06,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:25:05" (1/3) ... [2024-10-13 13:25:06,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a88052e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:25:06, skipping insertion in model container [2024-10-13 13:25:06,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:05" (2/3) ... [2024-10-13 13:25:06,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a88052e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:25:06, skipping insertion in model container [2024-10-13 13:25:06,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:06" (3/3) ... [2024-10-13 13:25:06,234 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin2_unwindbound20.i [2024-10-13 13:25:06,249 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 13:25:06,250 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-13 13:25:06,311 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 13:25:06,317 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;@33c90495, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 13:25:06,317 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-13 13:25:06,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 13:25:06,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-13 13:25:06,326 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:06,326 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-13 13:25:06,327 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)] === [2024-10-13 13:25:06,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:06,331 INFO L85 PathProgramCache]: Analyzing trace with hash 106896, now seen corresponding path program 1 times [2024-10-13 13:25:06,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:06,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372442151] [2024-10-13 13:25:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:06,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:06,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:06,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:06,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372442151] [2024-10-13 13:25:06,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372442151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:25:06,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:25:06,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:25:06,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925513136] [2024-10-13 13:25:06,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:25:06,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:25:06,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:06,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:25:06,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:25:06,573 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-10-13 13:25:06,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:06,664 INFO L93 Difference]: Finished difference Result 49 states and 68 transitions. [2024-10-13 13:25:06,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:25:06,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-10-13 13:25:06,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:06,671 INFO L225 Difference]: With dead ends: 49 [2024-10-13 13:25:06,672 INFO L226 Difference]: Without dead ends: 25 [2024-10-13 13:25:06,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:25:06,677 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:06,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 65 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:25:06,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-10-13 13:25:06,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-10-13 13:25:06,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.368421052631579) internal successors, (26), 22 states have internal predecessors, (26), 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) [2024-10-13 13:25:06,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2024-10-13 13:25:06,726 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 3 [2024-10-13 13:25:06,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:06,727 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2024-10-13 13:25:06,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-10-13 13:25:06,727 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2024-10-13 13:25:06,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-13 13:25:06,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:06,728 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:25:06,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 13:25:06,729 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:25:06,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:06,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1930673058, now seen corresponding path program 1 times [2024-10-13 13:25:06,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:06,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005087172] [2024-10-13 13:25:06,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:06,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:06,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:06,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:06,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005087172] [2024-10-13 13:25:06,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005087172] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:25:06,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:25:06,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 13:25:06,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532513701] [2024-10-13 13:25:06,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:25:06,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:25:06,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:06,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:25:06,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:25:06,952 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-10-13 13:25:07,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:07,051 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2024-10-13 13:25:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:25:07,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 8 [2024-10-13 13:25:07,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:07,054 INFO L225 Difference]: With dead ends: 44 [2024-10-13 13:25:07,055 INFO L226 Difference]: Without dead ends: 43 [2024-10-13 13:25:07,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:25:07,057 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:07,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 73 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:25:07,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-13 13:25:07,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2024-10-13 13:25:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 32 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 13:25:07,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2024-10-13 13:25:07,070 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 8 [2024-10-13 13:25:07,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:07,070 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2024-10-13 13:25:07,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-10-13 13:25:07,071 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2024-10-13 13:25:07,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-13 13:25:07,072 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:07,072 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-13 13:25:07,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 13:25:07,073 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:25:07,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:07,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1930671808, now seen corresponding path program 1 times [2024-10-13 13:25:07,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:07,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137552106] [2024-10-13 13:25:07,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:07,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:07,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:07,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:07,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137552106] [2024-10-13 13:25:07,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137552106] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:25:07,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419508481] [2024-10-13 13:25:07,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:07,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:07,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:25:07,226 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) [2024-10-13 13:25:07,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 13:25:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:07,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:25:07,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:25:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:07,356 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:25:07,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419508481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:25:07,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:25:07,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2024-10-13 13:25:07,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798735385] [2024-10-13 13:25:07,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:25:07,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:25:07,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:07,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:25:07,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:25:07,362 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-10-13 13:25:07,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:07,414 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2024-10-13 13:25:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:25:07,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 8 [2024-10-13 13:25:07,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:07,416 INFO L225 Difference]: With dead ends: 45 [2024-10-13 13:25:07,416 INFO L226 Difference]: Without dead ends: 44 [2024-10-13 13:25:07,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-13 13:25:07,418 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:07,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 57 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:25:07,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-13 13:25:07,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2024-10-13 13:25:07,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 31 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 13:25:07,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2024-10-13 13:25:07,432 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 8 [2024-10-13 13:25:07,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:07,434 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2024-10-13 13:25:07,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-10-13 13:25:07,434 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2024-10-13 13:25:07,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-13 13:25:07,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:07,435 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:25:07,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 13:25:07,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:07,636 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:25:07,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:07,637 INFO L85 PathProgramCache]: Analyzing trace with hash 278677408, now seen corresponding path program 1 times [2024-10-13 13:25:07,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:07,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057709581] [2024-10-13 13:25:07,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:07,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:07,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:07,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:07,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057709581] [2024-10-13 13:25:07,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057709581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:25:07,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:25:07,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 13:25:07,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758275780] [2024-10-13 13:25:07,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:25:07,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:25:07,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:07,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:25:07,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:25:07,721 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2024-10-13 13:25:07,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:07,776 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2024-10-13 13:25:07,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 13:25:07,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 9 [2024-10-13 13:25:07,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:07,778 INFO L225 Difference]: With dead ends: 45 [2024-10-13 13:25:07,778 INFO L226 Difference]: Without dead ends: 44 [2024-10-13 13:25:07,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:25:07,779 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:07,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 70 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:25:07,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-13 13:25:07,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2024-10-13 13:25:07,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.28125) internal successors, (41), 34 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 13:25:07,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2024-10-13 13:25:07,793 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 9 [2024-10-13 13:25:07,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:07,793 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2024-10-13 13:25:07,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2024-10-13 13:25:07,793 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2024-10-13 13:25:07,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-13 13:25:07,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:07,794 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-10-13 13:25:07,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 13:25:07,796 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:25:07,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:07,797 INFO L85 PathProgramCache]: Analyzing trace with hash 278716137, now seen corresponding path program 1 times [2024-10-13 13:25:07,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:07,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192149123] [2024-10-13 13:25:07,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:07,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:07,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:07,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:07,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192149123] [2024-10-13 13:25:07,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192149123] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:25:07,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783997922] [2024-10-13 13:25:07,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:07,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:07,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:25:07,909 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) [2024-10-13 13:25:07,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 13:25:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:07,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:25:07,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:25:07,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:07,996 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:25:07,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783997922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:25:07,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:25:07,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2024-10-13 13:25:07,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804381324] [2024-10-13 13:25:07,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:25:07,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:25:07,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:07,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:25:07,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:25:07,998 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-10-13 13:25:08,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:08,049 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2024-10-13 13:25:08,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:25:08,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 9 [2024-10-13 13:25:08,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:08,051 INFO L225 Difference]: With dead ends: 44 [2024-10-13 13:25:08,051 INFO L226 Difference]: Without dead ends: 43 [2024-10-13 13:25:08,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-13 13:25:08,052 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:08,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 62 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:25:08,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-13 13:25:08,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2024-10-13 13:25:08,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 32 states have (on average 1.25) internal successors, (40), 33 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 13:25:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2024-10-13 13:25:08,059 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 9 [2024-10-13 13:25:08,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:08,059 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2024-10-13 13:25:08,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-10-13 13:25:08,059 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2024-10-13 13:25:08,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-13 13:25:08,060 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:08,060 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-13 13:25:08,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 13:25:08,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:08,261 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)] === [2024-10-13 13:25:08,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:08,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1060698341, now seen corresponding path program 1 times [2024-10-13 13:25:08,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:08,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618890956] [2024-10-13 13:25:08,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:08,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:08,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:08,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:08,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618890956] [2024-10-13 13:25:08,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618890956] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:25:08,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558030381] [2024-10-13 13:25:08,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:08,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:08,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:25:08,354 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) [2024-10-13 13:25:08,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 13:25:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:08,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 13:25:08,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:25:08,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:08,423 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:25:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:08,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558030381] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:25:08,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:25:08,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-10-13 13:25:08,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601219084] [2024-10-13 13:25:08,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:25:08,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 13:25:08,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:08,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 13:25:08,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-13 13:25:08,492 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 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) [2024-10-13 13:25:08,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:08,600 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2024-10-13 13:25:08,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 13:25:08,600 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 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 12 [2024-10-13 13:25:08,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:08,601 INFO L225 Difference]: With dead ends: 75 [2024-10-13 13:25:08,601 INFO L226 Difference]: Without dead ends: 62 [2024-10-13 13:25:08,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-10-13 13:25:08,603 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 43 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:08,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 75 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:25:08,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-13 13:25:08,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2024-10-13 13:25:08,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 47 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 13:25:08,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2024-10-13 13:25:08,614 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 12 [2024-10-13 13:25:08,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:08,615 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2024-10-13 13:25:08,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 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) [2024-10-13 13:25:08,615 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2024-10-13 13:25:08,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-13 13:25:08,615 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:08,616 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-13 13:25:08,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 13:25:08,816 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 [2024-10-13 13:25:08,816 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)] === [2024-10-13 13:25:08,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:08,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1478038866, now seen corresponding path program 1 times [2024-10-13 13:25:08,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:08,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558116607] [2024-10-13 13:25:08,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:08,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:08,899 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:08,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:08,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558116607] [2024-10-13 13:25:08,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558116607] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:25:08,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262272953] [2024-10-13 13:25:08,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:08,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:08,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:25:08,902 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) [2024-10-13 13:25:08,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 13:25:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:08,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 13:25:08,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:25:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:09,011 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:25:09,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262272953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:25:09,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:25:09,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 13 [2024-10-13 13:25:09,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699930446] [2024-10-13 13:25:09,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:25:09,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:25:09,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:09,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:25:09,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-13 13:25:09,015 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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) [2024-10-13 13:25:09,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:09,070 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2024-10-13 13:25:09,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:25:09,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2024-10-13 13:25:09,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:09,071 INFO L225 Difference]: With dead ends: 52 [2024-10-13 13:25:09,071 INFO L226 Difference]: Without dead ends: 51 [2024-10-13 13:25:09,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-10-13 13:25:09,073 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:09,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 30 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:25:09,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-13 13:25:09,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 40. [2024-10-13 13:25:09,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 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) [2024-10-13 13:25:09,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2024-10-13 13:25:09,079 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 13 [2024-10-13 13:25:09,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:09,079 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2024-10-13 13:25:09,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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) [2024-10-13 13:25:09,080 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2024-10-13 13:25:09,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-13 13:25:09,080 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:09,080 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-13 13:25:09,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 13:25:09,281 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 [2024-10-13 13:25:09,281 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)] === [2024-10-13 13:25:09,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:09,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1425435472, now seen corresponding path program 1 times [2024-10-13 13:25:09,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:09,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978111036] [2024-10-13 13:25:09,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:09,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:09,362 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:09,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:09,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978111036] [2024-10-13 13:25:09,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978111036] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:25:09,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919414122] [2024-10-13 13:25:09,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:09,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:09,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:25:09,369 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:25:09,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 13:25:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:09,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 13:25:09,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:25:09,484 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:09,484 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:25:09,584 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:09,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919414122] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:25:09,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:25:09,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 18 [2024-10-13 13:25:09,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269589015] [2024-10-13 13:25:09,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:25:09,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-13 13:25:09,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:09,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-13 13:25:09,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-10-13 13:25:09,588 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 19 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 19 states have internal predecessors, (39), 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) [2024-10-13 13:25:09,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:09,816 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2024-10-13 13:25:09,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-13 13:25:09,816 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 19 states have internal predecessors, (39), 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 14 [2024-10-13 13:25:09,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:09,817 INFO L225 Difference]: With dead ends: 69 [2024-10-13 13:25:09,817 INFO L226 Difference]: Without dead ends: 68 [2024-10-13 13:25:09,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2024-10-13 13:25:09,818 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 86 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:09,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 98 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:25:09,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-13 13:25:09,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2024-10-13 13:25:09,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 55 states have internal predecessors, (64), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:25:09,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2024-10-13 13:25:09,827 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 14 [2024-10-13 13:25:09,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:09,827 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2024-10-13 13:25:09,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 19 states have internal predecessors, (39), 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) [2024-10-13 13:25:09,827 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2024-10-13 13:25:09,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-13 13:25:09,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:09,828 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:25:09,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-13 13:25:10,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:10,029 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:25:10,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:10,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1427000159, now seen corresponding path program 1 times [2024-10-13 13:25:10,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:10,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449561471] [2024-10-13 13:25:10,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:10,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:10,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 13:25:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:10,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 13:25:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:10,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 13:25:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:25:10,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:10,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449561471] [2024-10-13 13:25:10,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449561471] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:25:10,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140559605] [2024-10-13 13:25:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:10,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:10,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:25:10,332 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:25:10,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 13:25:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:10,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-13 13:25:10,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:25:10,571 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:10,571 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:25:10,808 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:25:10,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140559605] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:25:10,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:25:10,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 30 [2024-10-13 13:25:10,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278739090] [2024-10-13 13:25:10,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:25:10,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-13 13:25:10,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:10,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-13 13:25:10,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2024-10-13 13:25:10,814 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand has 31 states, 30 states have (on average 3.0) internal successors, (90), 31 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-13 13:25:11,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:11,451 INFO L93 Difference]: Finished difference Result 215 states and 244 transitions. [2024-10-13 13:25:11,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-13 13:25:11,452 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.0) internal successors, (90), 31 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 42 [2024-10-13 13:25:11,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:11,453 INFO L225 Difference]: With dead ends: 215 [2024-10-13 13:25:11,454 INFO L226 Difference]: Without dead ends: 214 [2024-10-13 13:25:11,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=896, Invalid=2296, Unknown=0, NotChecked=0, Total=3192 [2024-10-13 13:25:11,457 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 147 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:11,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 200 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:25:11,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-10-13 13:25:11,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 161. [2024-10-13 13:25:11,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 136 states have (on average 1.1323529411764706) internal successors, (154), 136 states have internal predecessors, (154), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 13:25:11,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 178 transitions. [2024-10-13 13:25:11,492 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 178 transitions. Word has length 42 [2024-10-13 13:25:11,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:11,492 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 178 transitions. [2024-10-13 13:25:11,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.0) internal successors, (90), 31 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-13 13:25:11,493 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 178 transitions. [2024-10-13 13:25:11,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-13 13:25:11,495 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:11,495 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-10-13 13:25:11,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 13:25:11,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:11,700 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:25:11,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:11,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1065299529, now seen corresponding path program 1 times [2024-10-13 13:25:11,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:11,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102995791] [2024-10-13 13:25:11,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:11,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:11,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 13:25:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:11,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 13:25:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-13 13:25:11,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:11,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102995791] [2024-10-13 13:25:11,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102995791] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:25:11,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464646000] [2024-10-13 13:25:11,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:11,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:11,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:25:11,900 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:25:11,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 13:25:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:11,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 13:25:11,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:25:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-13 13:25:12,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:25:12,172 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-13 13:25:12,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464646000] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:25:12,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:25:12,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 25 [2024-10-13 13:25:12,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557754317] [2024-10-13 13:25:12,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:25:12,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-13 13:25:12,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:12,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-13 13:25:12,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2024-10-13 13:25:12,175 INFO L87 Difference]: Start difference. First operand 161 states and 178 transitions. Second operand has 25 states, 25 states have (on average 2.72) internal successors, (68), 25 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:25:12,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:12,499 INFO L93 Difference]: Finished difference Result 241 states and 272 transitions. [2024-10-13 13:25:12,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-13 13:25:12,500 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.72) internal successors, (68), 25 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2024-10-13 13:25:12,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:12,502 INFO L225 Difference]: With dead ends: 241 [2024-10-13 13:25:12,502 INFO L226 Difference]: Without dead ends: 215 [2024-10-13 13:25:12,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=576, Invalid=1230, Unknown=0, NotChecked=0, Total=1806 [2024-10-13 13:25:12,504 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 92 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:12,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 149 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:25:12,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-10-13 13:25:12,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 191. [2024-10-13 13:25:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 166 states have (on average 1.144578313253012) internal successors, (190), 166 states have internal predecessors, (190), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 13:25:12,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 214 transitions. [2024-10-13 13:25:12,522 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 214 transitions. Word has length 50 [2024-10-13 13:25:12,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:12,522 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 214 transitions. [2024-10-13 13:25:12,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.72) internal successors, (68), 25 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:25:12,523 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 214 transitions. [2024-10-13 13:25:12,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-13 13:25:12,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:12,528 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-10-13 13:25:12,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 13:25:12,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:12,735 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:25:12,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:12,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1544387511, now seen corresponding path program 2 times [2024-10-13 13:25:12,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:12,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434843194] [2024-10-13 13:25:12,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:12,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:13,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 13:25:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:13,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-13 13:25:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-13 13:25:13,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:13,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434843194] [2024-10-13 13:25:13,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434843194] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:25:13,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551774087] [2024-10-13 13:25:13,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:25:13,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:13,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:25:13,314 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:25:13,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 13:25:13,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:25:13,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:25:13,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-13 13:25:13,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:25:13,492 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-13 13:25:13,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:25:14,028 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-13 13:25:14,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551774087] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:25:14,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:25:14,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23, 24] total 45 [2024-10-13 13:25:14,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669625255] [2024-10-13 13:25:14,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:25:14,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-10-13 13:25:14,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:14,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-10-13 13:25:14,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=547, Invalid=1433, Unknown=0, NotChecked=0, Total=1980 [2024-10-13 13:25:14,032 INFO L87 Difference]: Start difference. First operand 191 states and 214 transitions. Second operand has 45 states, 45 states have (on average 2.688888888888889) internal successors, (121), 45 states have internal predecessors, (121), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:25:15,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:15,003 INFO L93 Difference]: Finished difference Result 321 states and 366 transitions. [2024-10-13 13:25:15,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-10-13 13:25:15,003 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.688888888888889) internal successors, (121), 45 states have internal predecessors, (121), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2024-10-13 13:25:15,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:15,005 INFO L225 Difference]: With dead ends: 321 [2024-10-13 13:25:15,005 INFO L226 Difference]: Without dead ends: 295 [2024-10-13 13:25:15,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 139 SyntacticMatches, 4 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1705 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2146, Invalid=4660, Unknown=0, NotChecked=0, Total=6806 [2024-10-13 13:25:15,010 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 351 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:15,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 144 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:25:15,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-10-13 13:25:15,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 241. [2024-10-13 13:25:15,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 216 states have (on average 1.1574074074074074) internal successors, (250), 216 states have internal predecessors, (250), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 13:25:15,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 274 transitions. [2024-10-13 13:25:15,033 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 274 transitions. Word has length 80 [2024-10-13 13:25:15,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:15,034 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 274 transitions. [2024-10-13 13:25:15,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.688888888888889) internal successors, (121), 45 states have internal predecessors, (121), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:25:15,036 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 274 transitions. [2024-10-13 13:25:15,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-13 13:25:15,038 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:15,038 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-13 13:25:15,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-13 13:25:15,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-13 13:25:15,245 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:25:15,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:15,246 INFO L85 PathProgramCache]: Analyzing trace with hash 593678544, now seen corresponding path program 1 times [2024-10-13 13:25:15,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:15,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466848130] [2024-10-13 13:25:15,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:15,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:15,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-13 13:25:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:15,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 13:25:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:15,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 13:25:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:15,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-13 13:25:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:15,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 13:25:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:15,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-13 13:25:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:15,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-13 13:25:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:15,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 13:25:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:15,851 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-13 13:25:15,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:15,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466848130] [2024-10-13 13:25:15,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466848130] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:25:15,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528808729] [2024-10-13 13:25:15,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:15,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:15,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:25:15,854 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:25:15,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 13:25:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:15,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-13 13:25:15,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:25:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 3 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:16,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:25:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 3 proven. 222 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-13 13:25:17,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528808729] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:25:17,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:25:17,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 66 [2024-10-13 13:25:17,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979304573] [2024-10-13 13:25:17,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:25:17,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-10-13 13:25:17,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:17,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-10-13 13:25:17,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1012, Invalid=3410, Unknown=0, NotChecked=0, Total=4422 [2024-10-13 13:25:17,220 INFO L87 Difference]: Start difference. First operand 241 states and 274 transitions. Second operand has 67 states, 66 states have (on average 3.1818181818181817) internal successors, (210), 67 states have internal predecessors, (210), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-13 13:25:19,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:19,010 INFO L93 Difference]: Finished difference Result 625 states and 710 transitions. [2024-10-13 13:25:19,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-10-13 13:25:19,011 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 3.1818181818181817) internal successors, (210), 67 states have internal predecessors, (210), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 102 [2024-10-13 13:25:19,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:19,014 INFO L225 Difference]: With dead ends: 625 [2024-10-13 13:25:19,014 INFO L226 Difference]: Without dead ends: 624 [2024-10-13 13:25:19,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3742 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4499, Invalid=11757, Unknown=0, NotChecked=0, Total=16256 [2024-10-13 13:25:19,019 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 492 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:19,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 276 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:25:19,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-10-13 13:25:19,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 406. [2024-10-13 13:25:19,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 351 states have (on average 1.1396011396011396) internal successors, (400), 351 states have internal predecessors, (400), 27 states have call successors, (27), 27 states have call predecessors, (27), 27 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 13:25:19,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 454 transitions. [2024-10-13 13:25:19,048 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 454 transitions. Word has length 102 [2024-10-13 13:25:19,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:19,049 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 454 transitions. [2024-10-13 13:25:19,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 3.1818181818181817) internal successors, (210), 67 states have internal predecessors, (210), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-13 13:25:19,049 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 454 transitions. [2024-10-13 13:25:19,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-10-13 13:25:19,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:19,056 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 3, 3, 3, 3, 2, 1, 1, 1] [2024-10-13 13:25:19,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-13 13:25:19,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:19,257 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:25:19,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:19,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1355164160, now seen corresponding path program 2 times [2024-10-13 13:25:19,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:19,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423629493] [2024-10-13 13:25:19,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:19,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:20,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 13:25:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:20,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 13:25:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:20,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 13:25:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:20,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 13:25:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:20,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-13 13:25:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:20,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-13 13:25:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:20,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 13:25:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:20,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-13 13:25:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:20,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-13 13:25:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:20,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-13 13:25:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:20,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-13 13:25:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:21,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-13 13:25:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:21,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-13 13:25:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:21,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-13 13:25:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:21,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-13 13:25:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:21,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-13 13:25:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:21,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-13 13:25:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:21,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-13 13:25:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:21,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 1115 proven. 25 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 13:25:21,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:21,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423629493] [2024-10-13 13:25:21,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423629493] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:25:21,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232443760] [2024-10-13 13:25:21,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:25:21,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:21,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:25:21,043 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:25:21,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 13:25:21,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:25:21,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:25:21,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-10-13 13:25:21,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:25:21,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 1735 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:25:21,468 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:25:22,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 1123 proven. 17 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-13 13:25:22,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232443760] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:25:22,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:25:22,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 43, 44] total 47 [2024-10-13 13:25:22,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239151281] [2024-10-13 13:25:22,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:25:22,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-10-13 13:25:22,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:22,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-10-13 13:25:22,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=1699, Unknown=0, NotChecked=0, Total=2162 [2024-10-13 13:25:22,238 INFO L87 Difference]: Start difference. First operand 406 states and 454 transitions. Second operand has 47 states, 47 states have (on average 4.0212765957446805) internal successors, (189), 47 states have internal predecessors, (189), 18 states have call successors, (36), 19 states have call predecessors, (36), 19 states have return successors, (36), 18 states have call predecessors, (36), 18 states have call successors, (36) [2024-10-13 13:25:23,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:23,250 INFO L93 Difference]: Finished difference Result 612 states and 678 transitions. [2024-10-13 13:25:23,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-10-13 13:25:23,251 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 4.0212765957446805) internal successors, (189), 47 states have internal predecessors, (189), 18 states have call successors, (36), 19 states have call predecessors, (36), 19 states have return successors, (36), 18 states have call predecessors, (36), 18 states have call successors, (36) Word has length 217 [2024-10-13 13:25:23,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:23,253 INFO L225 Difference]: With dead ends: 612 [2024-10-13 13:25:23,253 INFO L226 Difference]: Without dead ends: 315 [2024-10-13 13:25:23,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 426 SyntacticMatches, 41 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2799 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1940, Invalid=5542, Unknown=0, NotChecked=0, Total=7482 [2024-10-13 13:25:23,257 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 97 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:23,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1525 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 13:25:23,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-10-13 13:25:23,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 312. [2024-10-13 13:25:23,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 257 states have (on average 1.11284046692607) internal successors, (286), 257 states have internal predecessors, (286), 27 states have call successors, (27), 27 states have call predecessors, (27), 27 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 13:25:23,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 340 transitions. [2024-10-13 13:25:23,276 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 340 transitions. Word has length 217 [2024-10-13 13:25:23,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:23,276 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 340 transitions. [2024-10-13 13:25:23,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 4.0212765957446805) internal successors, (189), 47 states have internal predecessors, (189), 18 states have call successors, (36), 19 states have call predecessors, (36), 19 states have return successors, (36), 18 states have call predecessors, (36), 18 states have call successors, (36) [2024-10-13 13:25:23,277 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 340 transitions. [2024-10-13 13:25:23,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-10-13 13:25:23,279 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:25:23,280 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:25:23,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-13 13:25:23,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-13 13:25:23,480 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:25:23,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:25:23,481 INFO L85 PathProgramCache]: Analyzing trace with hash 648766497, now seen corresponding path program 2 times [2024-10-13 13:25:23,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:25:23,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065239239] [2024-10-13 13:25:23,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:25:23,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:25:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 13:25:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-13 13:25:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 13:25:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 13:25:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 13:25:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 13:25:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 13:25:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 13:25:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 13:25:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-13 13:25:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 13:25:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 13:25:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 13:25:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 13:25:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-13 13:25:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-13 13:25:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-13 13:25:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-13 13:25:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-13 13:25:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-13 13:25:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-10-13 13:25:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-10-13 13:25:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-10-13 13:25:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-10-13 13:25:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-10-13 13:25:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-10-13 13:25:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-13 13:25:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:25:23,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3942 backedges. 356 proven. 7 refuted. 0 times theorem prover too weak. 3579 trivial. 0 not checked. [2024-10-13 13:25:23,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:25:23,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065239239] [2024-10-13 13:25:23,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065239239] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:25:23,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854058910] [2024-10-13 13:25:23,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:25:23,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:25:23,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:25:23,872 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:25:23,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-13 13:25:24,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:25:24,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:25:24,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-10-13 13:25:24,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:25:25,008 INFO L134 CoverageAnalysis]: Checked inductivity of 3942 backedges. 3622 proven. 19 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-10-13 13:25:25,009 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:25:25,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3942 backedges. 2330 proven. 19 refuted. 0 times theorem prover too weak. 1593 trivial. 0 not checked. [2024-10-13 13:25:25,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854058910] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:25:25,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:25:25,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 43, 44] total 49 [2024-10-13 13:25:25,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759766517] [2024-10-13 13:25:25,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:25:25,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-10-13 13:25:25,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:25:25,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-10-13 13:25:25,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=497, Invalid=1855, Unknown=0, NotChecked=0, Total=2352 [2024-10-13 13:25:25,851 INFO L87 Difference]: Start difference. First operand 312 states and 340 transitions. Second operand has 49 states, 49 states have (on average 4.469387755102041) internal successors, (219), 49 states have internal predecessors, (219), 23 states have call successors, (43), 21 states have call predecessors, (43), 21 states have return successors, (43), 23 states have call predecessors, (43), 23 states have call successors, (43) [2024-10-13 13:25:27,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:25:27,211 INFO L93 Difference]: Finished difference Result 312 states and 340 transitions. [2024-10-13 13:25:27,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-10-13 13:25:27,211 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 4.469387755102041) internal successors, (219), 49 states have internal predecessors, (219), 23 states have call successors, (43), 21 states have call predecessors, (43), 21 states have return successors, (43), 23 states have call predecessors, (43), 23 states have call successors, (43) Word has length 306 [2024-10-13 13:25:27,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:25:27,212 INFO L225 Difference]: With dead ends: 312 [2024-10-13 13:25:27,213 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 13:25:27,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 751 GetRequests, 601 SyntacticMatches, 41 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3903 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2960, Invalid=9250, Unknown=0, NotChecked=0, Total=12210 [2024-10-13 13:25:27,217 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 104 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:25:27,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1458 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:25:27,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 13:25:27,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 13:25:27,218 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) [2024-10-13 13:25:27,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 13:25:27,218 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 306 [2024-10-13 13:25:27,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:25:27,219 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 13:25:27,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 4.469387755102041) internal successors, (219), 49 states have internal predecessors, (219), 23 states have call successors, (43), 21 states have call predecessors, (43), 21 states have return successors, (43), 23 states have call predecessors, (43), 23 states have call successors, (43) [2024-10-13 13:25:27,219 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 13:25:27,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 13:25:27,222 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-13 13:25:27,223 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-13 13:25:27,223 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-10-13 13:25:27,223 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-10-13 13:25:27,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-13 13:25:27,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-13 13:25:27,427 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:25:27,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 13:25:28,730 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 13:25:28,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:25:28 BoogieIcfgContainer [2024-10-13 13:25:28,747 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 13:25:28,747 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 13:25:28,747 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 13:25:28,748 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 13:25:28,748 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:06" (3/4) ... [2024-10-13 13:25:28,750 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 13:25:28,754 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-10-13 13:25:28,757 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-13 13:25:28,758 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-13 13:25:28,758 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 13:25:28,758 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 13:25:28,847 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 13:25:28,848 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 13:25:28,848 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 13:25:28,848 INFO L158 Benchmark]: Toolchain (without parser) took 23335.50ms. Allocated memory was 161.5MB in the beginning and 283.1MB in the end (delta: 121.6MB). Free memory was 93.7MB in the beginning and 162.0MB in the end (delta: -68.2MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2024-10-13 13:25:28,849 INFO L158 Benchmark]: CDTParser took 1.12ms. Allocated memory is still 104.9MB. Free memory was 76.0MB in the beginning and 75.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 13:25:28,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.73ms. Allocated memory is still 161.5MB. Free memory was 93.6MB in the beginning and 133.1MB in the end (delta: -39.5MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2024-10-13 13:25:28,850 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.51ms. Allocated memory is still 161.5MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 13:25:28,850 INFO L158 Benchmark]: Boogie Preprocessor took 32.41ms. Allocated memory is still 161.5MB. Free memory was 131.0MB in the beginning and 129.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 13:25:28,850 INFO L158 Benchmark]: RCFGBuilder took 368.14ms. Allocated memory is still 161.5MB. Free memory was 129.5MB in the beginning and 117.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 13:25:28,851 INFO L158 Benchmark]: TraceAbstraction took 22520.13ms. Allocated memory was 161.5MB in the beginning and 283.1MB in the end (delta: 121.6MB). Free memory was 116.4MB in the beginning and 167.2MB in the end (delta: -50.9MB). Peak memory consumption was 154.9MB. Max. memory is 16.1GB. [2024-10-13 13:25:28,851 INFO L158 Benchmark]: Witness Printer took 100.43ms. Allocated memory is still 283.1MB. Free memory was 167.2MB in the beginning and 162.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 13:25:28,853 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12ms. Allocated memory is still 104.9MB. Free memory was 76.0MB in the beginning and 75.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.73ms. Allocated memory is still 161.5MB. Free memory was 93.6MB in the beginning and 133.1MB in the end (delta: -39.5MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.51ms. Allocated memory is still 161.5MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.41ms. Allocated memory is still 161.5MB. Free memory was 131.0MB in the beginning and 129.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 368.14ms. Allocated memory is still 161.5MB. Free memory was 129.5MB in the beginning and 117.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 22520.13ms. Allocated memory was 161.5MB in the beginning and 283.1MB in the end (delta: 121.6MB). Free memory was 116.4MB in the beginning and 167.2MB in the end (delta: -50.9MB). Peak memory consumption was 154.9MB. Max. memory is 16.1GB. * Witness Printer took 100.43ms. Allocated memory is still 283.1MB. Free memory was 167.2MB in the beginning and 162.0MB in the end (delta: 5.2MB). 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: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: 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, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 21.1s, OverallIterations: 14, TraceHistogramMax: 28, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1487 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1487 mSDsluCounter, 4282 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3798 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3088 IncrementalHoareTripleChecker+Invalid, 3169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 484 mSDtfsCounter, 3088 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2234 GetRequests, 1554 SyntacticMatches, 86 SemanticMatches, 594 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13525 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=406occurred in iteration=12, InterpolantAutomatonStates: 433, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 403 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 1726 NumberOfCodeBlocks, 1726 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2516 ConstructedInterpolants, 0 QuantifiedInterpolants, 5696 SizeOfPredicates, 151 NumberOfNonLiveVariables, 1947 ConjunctsInSsa, 177 ConjunctsInUnsatCore, 33 InterpolantComputations, 6 PerfectInterpolantSequences, 17351/19301 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: 34]: Loop Invariant Derived loop invariant: (((((counter <= 20) && (3 <= counter)) || (counter == 0)) || (counter == 1)) || (counter == 2)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((1 <= counter) && (counter <= 2)) || ((2 <= counter) && (counter <= 3))) || ((20 <= counter) && (counter <= 2147483646))) || ((counter <= 22) && (4 <= counter))) RESULT: Ultimate proved your program to be correct! [2024-10-13 13:25:28,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE